Page 1: Service Manual
Service Manual HITACHI Printer Model RX2 Revision Feb. 2014 Version...
Page 2 [ Revision of RX2 service manual ] Revision Chapter Revised Page Frist Edition Addition of “2.18,2.19,2.20,2.21,4.14,4.15” Contents Addition of “2.18 Expiration date management of ink 2.18 2-45 and makeup” Addition of “2.19 Careful Cleaning Setup” 2.19 2-48 Addition of “2.20 Logging data” 2.20 2-51 Addition of “2.21 Rescue soft”...
Page 3: Table Of Contents
Contents 1. Introduction ················································································································· 1-1 1.1 Safety precautions ······························································································· 1-1 1.2 Structure of each part in the main body ······························································· 1-7 1.2.1 External views ······························································································· 1-7 1.2.2 Main body internal ························································································· 1-8 1.2.3 Print head ····································································································· 1-9 1.3 Installation ··········································································································· 1-10 1.3.1 Power supply wiring ························································································...
Page 4 2.17 Touch screen setup ···························································································· 2-44 2.18 Expiration date management of ink and makeup ··············································· 2-45 2.19 Careful Cleaning Setup ······················································································ 2-48 2.20 Logging data ······································································································ 2-51 2.21 Rescue soft ········································································································ 2-57 3. Maintenance of controlling part ··················································································· 3-1 3.1 Construction of controlling part ··········································································· 3-1 3.2 Controller part ····································································································...
Page 5 4.6 Pressure Sensor Replacement Procedure ···························································· 4-13 4.7 Circulation Unit Replacement Procedure ····························································· 4-15 4.8 Pump Parts Replacement ···················································································· 4-17 4.9 Troubleshooting when Fault Occurs in Viscometer ··············································· 4-22 4.10 Print Head Replacement Procedure ···································································· 4-27 4.11 Troubleshooting Procedure for the Circulation System ········································ 4-30 4.12 Repairing Method When the Circulation Route Is Dry or Sticks ·························...
Page 6: Introduction
1. Introduction 1.1 Safety precautions Before starting the maintenance and inspection work of this printer, thoroughly read and understand the “safety precautions”. When explaining the product to customers at the time of the installation, fully explain the “safety precautions”. ● Before using the printer, thoroughly read the following safety precautions for optimum printer use. ●...
Page 7 SAFETY PRECAUTIONS (Continued) WARNING ● Ensure that there is no flame- or arc-generating device around the printer. The ink and makeup are both flammable and may cause fire. Fire can be generated by matches, lighters, cigarettes, heaters, stoves, gas burners, welders, grinders and static electricity. Arcs may be generated from open-type relays, switches, and brush motors.
Page 8 ● The printer must be managed in compliance with all appropriate regulations. Check the supplementary manual (Ink) for the ink used. ● Use Hitachi approved consumables and periodic replacement parts. Using products that are not designated by Hitachi could cause s failure in certain functions.
Page 9 SAFETY PRECAUTIONS (Continued) WARNING ● When charging a refill of ink or makeup, exchanging ink, or otherwise handling ink or makeup, take enough care not to spill ink or makeup. If you spill any ink or makeup by mistake, wipe it off neatly and promptly with wiping paper or something similar.
Page 10 SAFETY PRECAUTIONS (Continued) CAUTION ● Use the printer in an ambient temperature prescribed for each nozzle diameter and ink and 30 to 90%RH (no condensation) environment. ①When using the printer in 85 to 90%RH environment, air purge the print head. ②Using the printer outside the specified conditions may cause abnormal printing and erroneous operation and trouble.
Page 11 SAFETY PRECAUTIONS (Continued) CAUTION ● When handling PC boards and electric parts, be careful of static electricity. PC boards and electric parts mount elements weak against static electricity. When handling PC boards and electric parts remove the static electricity by wearing a suitably grounded anti-static wrist band.
Page 12: Structure Of Each Part In The Main Body
1.2 Structure of each part in the main body 1.2.1 External views (1)External views (RX2-S) (2)External views (RX2-B)
Page 13: Main Body Internal
(2)External views (Rear side) 1.2.2 Main body internal...
Page 14: Print Head
1.2.3 Print head...
Page 15: Installation
1.3 Installation 1.3.1 Power supply wiring ！ Caution •Use the proper plug. Be sure to ground properly. •Locate the equipment near an electrical outlet and arrange so it can be easily disconnected. •Use a power cable that is within the specified range. •Do not bundle the light electrical cable together with the power cable outside the unit so the light electrical signals (connection signals to the various signal connections and external communication connectors) are not affected by noise...
Page 16 １ Remove the inlet cover. (Fastening screws x 4) Inlet cover Precautions concerning electrical shock Be sure to unplug the power cable from the electrical outlet before performing work. Be careful not to get shocked when checking with the cover open. ２...
Page 17: Installation Procedure
1.3.2 Installation procedure Perform an installation work of the unit according to the following procedure at the unpacking. Selection type(Touch screen Service Manual 2.2 System environment setup operation) Fill ink and makeup in each reservoir. Instruction manual 8. Makeup replenishment Ink stream alignment Technical Manual 6.5 Stream alignment...
Page 18: Maintenance Work
2. Maintenance work A screen for use in the maintenance work by a service personnel is described. 2.1 Setting of service personnel maintenance mode ● Set service personnel maintenance mode to perform maintenance work by service personnel such as system environment setup. Features of service personnel maintenance mode (differences with user maintenance mode) Function Contents...
Page 19 [Service personnel maintenance mode setup procedure] 1 Printing description screen is displayed. Print description [Stop 2015.07.07 12:45 Com=0 Message name[ Current user ID : admin Start << >> Manual Single scan Ink operating time 0 (hours) Cumulative op. time 0 (hours) Print count 0 (prints) Ink pressure...
Page 20 3 Select any user. The keyboard for inputting the password is displayed. Cancel Enter Enter <- -> ABC- 123- 123- l e te Shift Shift 4 Input password “HIESmmdd” and press Enter. (mm: Month, dd: Day) Example: If date is December 31, 2015, input “HIES1231.” [Caution] The password “HIESmmdd”...
Page 21: System Environment Setup
2.2 System environment setup ● The setting with respect to the system environment of the IJ printer is performed. Ink type Cable length Nozzle size Ink temperature correction Excitation frequency Excitation curve Ambient temperature upper limit Ambient temperature lower limit Excitation setting (Max.) A “USB memory containing system data”...
Page 22: Adjustment/Operational Checkout
2.3 Adjustment/operational checkout 2.3.1 Excitation adjustment ● Adjust the drive conditions of nozzles. This adjustment is performed in a state other than the IJ printer “ready” state. ● ● Be sure to perform this adjustment in the case of replacing the board (EZJ126, 125, 128), or the nozzle (including the print head) or changing the ink type.
Page 23 3 Press Automatic adjustment. During automatic adjustment, “in progress” is displayed as the processing status. Proc. status: In progress The excitation voltage is automatically adjusted inside the IJ printer. The excitation voltage is gradually increased, and the adjustment is completed at 60 V ±...
Page 24 When you press Manual adjustment and manually input the excitation voltage adjustment value, the excitation voltage value is increased or decreased. Check the waveform of TP14 (excitation voltage) on the EZJ125 board with an oscilloscope. For the position of the board and test pins, refer to “3.3.2 EZJ125 board.” [Stop 2015.07.07 12:45 Adjust./oper.
Page 25: Charging Voltage Confirmation
2.3.2 Charging voltage confirmation ● Voltage for confirmation of charging voltage is output for 3 minutes. ● Be sure to perform this confirmation when performing the board exchange (EZJ126 and 125). ●This confirmation is performed in a state the IJ printer “stop” state. 1 Press Adjustment/operational checkout on the maintenance menu.
Page 26 3 Measure TP12 of the EZJ125 board with an oscilloscope and make sure it is within the range of DC250V ± 15V. For the position of the board and test pins, refer to “3.3.2 EZJ125 board.” [Waveform of charge voltage confirmation] Charge voltage ←...
Page 27: Phase Margin Test
2.3.3 Phase margin test ● Perform the phase margin test of a nozzle. ● This test is performed to check the following: whether or not the nozzle is in a printable state (whether or not clogging is present) and whether or not ink is deteriorated. This test is performed with the IJ printer on “standby”...
Page 28 3 Select the setting values for print timing, print data and print phase. Setting items for phase margin test № Item Setting Contents value Button Prints each time Start printing is pressed. input Print timing Sensor Prints for each print sensor signal input. The printing conditions are automatically set as described below.
Page 29 Example of [Print timing: Sensor] Adjust./oper. checkout [Ready 2015.07.07 12:45 Com=0 <Phase margin test> Button input Sensor Print timing Print data For test Data to be displayed Print phase Automatic update Specified phase Printing starts upon signal from sensor. Print phase: Ｘ-phase (0-f) Abort Abort Dec.
Page 30: Auto Phase Gain Adjustment
2.3.4 Auto phase gain adjustment ● The gain of the auto phase detection voltage is automatically adjusted. ● Perform this adjustment after confirmation that the periphery of a gutter part within the nozzle head is not made dirty with ink or the like and the printing head cover is correctly fixed. ●...
Page 31 3 Press Automatic acquisition. During automatic acquisition, “acquisition” is displayed as the processing state. Proc. status: Acquisition Auto-phase detection voltage gain is automatically adjusted in the IJ printer. A target of the auto-phase gain value is about from “20” to “40” (65μm). 4 After the completion of the automatic adjustment, when the Back key is pressed, the auto phase detection voltage is output and therefore, confirm the waveform by an oscilloscope.
Page 32: Level Sensor Confirmation
2.3.5 Level sensor confirmation ● Confirms operation of level sensors for the main ink tank, ink reservoir, and makeup reservoir. № Container type Level sensor Too high Main ink tank Initial level Ink reservoir Too low Makeup reservoir Too low ●...
Page 33 2 Press Level sensor confirmation. The level sensor confirmation screen is then displayed. Adjust./oper. checkout [Stop Com=0 2015.07.07 12:45 <Level sensor confirmation> <Main ink tank> <Ink reservoir> <Makeup reservoir> Too high undetected Too low Too low Initial detected undetected undetected Back Back Proc.
Page 34: Heating Unit Confirmation
2.3.6 Heating unit confirmation ● The operation confirmation of heating unit is performed. Heating unit power ON/OFF. ● A display of an ambient temperature and a heating unit temperature is performed. ● Perform this operation confirmation in a state other than "Ready" state. 1 Press Adjustment/operational checkout on the maintenance menu.
Page 35 2 Press Heating unit confirmation . The Heating unit confirmation screen is displayed. Adjust./oper. checkout [Stop 2015.07.07 12:45 Com=0 <Heating unit confirmation> Ambient temperature : 10 ( ) Heating unit temp. 20 ( ) Heating unit status : Deactivated Execution takes 5 minutes. Abort Abort Deactivate...
Page 36: Test Of Solenoid Valve/Pump
2.4 Test of solenoid valve/pump ● The operation confirmation of solenoid valve and pump is performed. Supply valve (MV1) Replenishment valve (MV2) Recovery valve (MV3) Viscosity valve (MV4) Circulation valve (MV5) Pressure relief valve (MV6) Makeup valve (MV7) Cleaning valve (MV8) (MV9) Pump...
Page 37: Download
2.5 Download ● The function is used for upgrading the program. ● The program on the EZJ126 and EZJ128 boards is downloaded from the USB memory. A “USB memory containing system data” is required. ● The function is executed with the IJ printer in “Stop” state. ●...
Page 38 3 Press Download on the second page of the maintenance menu. The download screen is then displayed. Download [Stop 2015.07.07 12:45 Com=0 Downloaded from（USB memory） Controller software 03.00 Print controller software M 03.00 Print controller software S 03.00 Print controller ROM data 03.00 CG font data 03.00...
Page 39: Calibration Of Viscometer
2.6 Calibration of Viscometer 2.6.1 Calibration of viscometer ●The calibration of viscometer is to determine the “coefficient” inherent in the equipment. ●Calibrate the viscometer when installing equipment. Normally, calibrating it once is enough. However, calibrate the viscometer again when changing the ink type, and also calibrate a new viscometer after replacement.
Page 40: Operation Test Of Viscometer
3 The measurement is completed in four minutes, and coefficient (calculated value) will be displayed. [Standard value of the viscometer calibration] 1000 to 2000 *The value stated above is a reference. There will be no problem even If the coefficient value displayed is other than stated above as long as data of Plunger falling time fall within a similar range.
Page 41: Ink Concentration Control
2.7 Ink concentration control ● Select whether or not the ink concentration is controlled based on results of the viscosity measurement. Perform these settings at “Stop” state. ● Setting items of circulation environment setup screen Item Selection Contents The ink concentration is controlled by the dot count control without measurement of the ink viscosity.
Page 42: System Reset
2.8 System reset et the set values on the “Printing data”, “User pattern” and “Maintenance” screens to the values ●S of initial condition. ● Perform this function when the EZJ128 board or the EZJ126 board is replaced in a state allowing no backup.
Page 43: Backup
2.9 Backup ● Print data and user data are backed up on a USB memory. ● Backup data can be copied on an IJ printer. ● You can select the type of data when copying to the IJ printer. ● The copying method is replacing the content of USB memory as they are (overwrite copy).
Page 44: Unit Information
2.10 Unit information ● Displays/changes unit TYPE-FORM, serial No., Icon type, login information and ink type. Item Contents TYPE-FORM Displays TYPE-FORM. Serial No. Displays Serial number. Icon type Select the Icon type on the display. Viscosity coefficient Ink viscosity coefficient can be changed. Ink and makeup usage Whether or not to display a warning when ink and makeup time limit control...
Page 45 1 Press Unit information on the maintenance menu. If in the user maintenance mode, set to the service personnel maintenance mode on the login user selection screen. For information on changing to the service personnel maintenance mode, refer to “2.1 Setting of service personnel maintenance mode.” The unit information screen is then displayed.
Page 46: Handling Of The Warning "Product Speed Matching Error", Etc
2.11 Handling of the warning “Product Speed Matching Error”, etc. (user environment setup) ● Displays items of user environment setup screen that can be set in the service personnel maintenance mode. Items that can be set in the service personnel maintenance mode (user environment setup screen) №...
Page 47 Arabic number “2” print CG example (characters size in figure is “12 x 16”) < Method 1 > < Method 2 > You can enhance printing quality by increasing the “character height” setting value and ● decreasing distance between printing head and print object, rather than decreasing the “character height”...
Page 48 [Example 2] The print items are “NOT” added in units of “Column” up to the numbers specified. (24 items are set.) Before Change After Change 1Line/1Column + 3Lines/1Column 1Line/1Column + 3Lines/7Columns + 1Line/2Columns (4 items) (24 items) Column1 Column2 Column1 Column2 Column8 Column9 Column10...
Page 49 1 Press User environment setup on the maintenance menu. If in the user maintenance mode, set to the service personnel maintenance mode on the login user selection screen. For information on changing to the service personnel maintenance mode, refer to “2.1 Setting of service personnel maintenance mode.” The user environment setup screen is then displayed.
Page 50 [Third page] User environment setup [Stop 2015.07.07 12:45 Com=0 Start Manual Arabic pattern variation method1 method2 (0-50) Minimum character height HOME Disable Enable Signal detection in target sensor filtering Disable Enable Print Overlap Fault Check Prev. Next set- set- tings tings Disable Enable...
Page 51: Language Registration
2.12 Language registration ● This function is to register screen languages. Register display language for the IJ printer from the “USB memory containing system data”. ● ● Keyboard type for character input can be selected by input mode. Input mode Input mode Contents Default...
Page 52 [Note] ● Do not leave from the printer until download procedure is complete then confirm the select language screen display. The download has succeeded when select language screen redisplay. Download had not succeeded when the select language screen did not redisplay or power failure happened during download procedure.
Page 53: Fault / Warning Log Management Code
2.13 Fault / Warning log management code ● This function displayed code number in the Fault/Warning log screen. Fault/Warning Log Code Table Code Code Message name Message name Ink Low Fault Improper Sensor Position Main Ink Tank Too Full Target Sensor Fault Deflection Voltage Fault Target Spacing Too Close Ink Replenishment Timeout...
Page 54 Code Code Message name Message name External Communication Error 005 External Communication Error 006 External Communication Error 007 External Communication Error 008 External Communication Error 009 No Ink Concentration Control External Communication Error 010 Print Data/ Settings Notice External Communication Error 011 External Communication Error 012 External Communication Error 013 External Communication Error 014...
Page 55: Software Option Setup
2.14 Software option setup 2.14.1 Software option setup for RX2-S ●Use this function when setting up software options to IJ printer. ● In order to set up options, EZJ129 board / EZJ130 board and a memory card (IJP system-data is stored) are required. For information on installing EZJ130 board, refer to “3.3.12 EZJ130 board (Software option control board)”.
Page 56: Standard Communication Option Setup For Rx2-B
5 Change the option to set up to “Enable”. Option setup [Stop Com=0 2015.07.07 12:45 Special communication A Disable Enable Start Manual External signal A Disable Enable HOME Barcode reader connection Disable Enable High-speed print 18x24 Disable Enable Back 6 Press OK. After the completion of the setup, the screen returns to the service maintenance screen.
Page 57: Upgrade Option Setup For Rx2-S
2.15 Upgrade option setup for RX2-S ● Functional upgrade is available with inserting upgrade key. ● The possible steps for upgrade is depending on the number of upgrade-key. < Available upgrade steps > Number of Upgrade step Upgrade-Key Up to 2 steps Up to 5 steps Up to 8 steps ●There are five upgrade groups.
Page 58: Turn On The Power
[Procedure to upgrade function using upgrade key for RX2-S] 1 Turn off the power and install the upgrade-keys on EZJ126 board. 2 Turn on the power. 3 Press Upgrade function setup at the second page of the service maintenance work screen. If Prev.
Page 59: Time Of Preparing For Printing (Rx2-S Only)
2.16 Time of preparing for printing (RX2-S only) ● Set time between after the print target detection signal is input and printing. Time between after print target detection signal is input and printing Model Set Value Time of preparing RX-B Standard only Approx.
Page 60 Print specifications screen Print specifications [Stop Com=0 2015.07.07 12:45 1st screen 2nd screen 3rd screen Start Manual None Encoder Product speed matching HOME （1/1～1/999 Enter denominator.） Pulse rate div. Factor 0 0 1 [m/min.] Input ‘0’ if unknown Line speed 0 0 0 0 0 Time of preparing for printing Time of preparing for printing...
Page 61: Touch Screen Setup
2.17 Touch screen setup ● Touch screen setup items with service mode as following. Items of Touch screen setup with service mode № Item Setting Contents To the left Cursor move to right to left when input the text. Arabic input mode To the right Cursor move to left to right when input the text.
Page 62: Expiration Date Management Of Ink And Makeup
2.18 Expiration date management of ink and makeup 1．Overview When the ink or makeup bottle which passed the expiration date were to be opened for use, or when the ink or makeup passed estimated replacement time after opening or ※ , fault of “Ink Shelf Life Information”...
Page 63 (2) Input lot number Lot number (example: G01D-1) is indicated on the label of ink or makeup. By inputting this lot number on Unit information screen, year and month of manufacture of Ink or makeup is calculated within IJP, and makes it possible to manage the expiration date.
Page 64 (4) Fault (a) Fault occurrence condition When Expiration date management for ink and makeup is set to Enable, the fault of “Ink Shelf Life Information” or “Makeup Shelf Life Information” is output under conditions below. № Fault output condition At startup, [Present ≧ Fault output starting date] Every hour 1 minute after the hour, [Present ≧...
Page 65: Careful Cleaning Setup
When this function of “Careful-Cleaning Stop” is set to Enable, please hand out to the customer 2- page instruction of “Hitachi IJP - Model RX2 Careful Cleaning Instruction Manual” which is attached herewith and provide an explanation of “Operation and Precautions” properly.
Page 66 Hitachi IJP - Model RX2 Careful Cleaning Instruction Manual This is the function to clean the nozzle carefully when shutting down IJP. Please read the instructions below and execute “Careful cleaning” function. 1. Operation 1.1 Operation procedures of “Careful cleaning” shutdown process...
Page 67 2. Precautions The ink concentration will get lower compared to that of the regular shutdown process since the shutdown process of “Careful cleaning” will use extra amount of makeup. (It will consume about the double amount of makeup of the regular shutdown process. Please pay extra attention as stated below.
Page 68: Logging Data
2.20 Logging data - Log the operating conditions to investigate the fault and warning condition. - Log files are copied to the below holder when backup function is performed in the Service personnel maintenance mode. List of Log files File name Contents Logging timing ALARM.TXT...
Page 69 (2) Automatic ink replenishment data (AUTOSPLY.TXT) [Example] Initial level Makeup ink (High- replenishment replenishment replenishment Control speed Ambient Viscometer Cumulative (for dot (to an initial (to an initial № Date Start time sequence machine) Mode temperature temperature Pressure print count Dot count count) level) level)
Page 70 ● Automatic ink & makeup replenishment sequence Viscosity Waiting for Makeup Printing measurement defoaming replenishment replenishment replenishment (30 minutes) (for dot count) (to initial level) (10 minutes) Step B2 Step C1 Step C3 Step B1 Step C2 Step B2 is for Pigment ink only. <Log timing>...
Page 71 (3) Viscosity control data (INKVISCO.TXT) [Example] Adjustment Initial level of viscosity (High- Average at (High- Control Control speed № Date Time №1 №2 №3 №4 №5 falling time Temperature Standard Viscosity speed code info. machine) 1 2011/7/7 0:29:23 1.58 1.58 1.58 1.57 1.57 1.57 2.22 0 Normal...
Page 72 (4) Circulation system control data (SEQUENCE.TXT) [Example] Aborted № Date Start time Finish timeCode Sequence name Result step № info1 info2 info3 info4 1 2011/7/7 7:05:29 0:02:09 160 Eject ink B 7:06:56 2 2011/7/7 1:53:16 208 Noclean-stop 8:06:56 3 2011/7/7 0:05:35 80 Nozzle backwash 9:07:45...
Page 73 Code number and sequence name Code Sequence name Code Sequence name Power turned on time Input LotNo. Current time change Upgrade-key is short Select message Ambient temp. upper lim. Fault/warning log clear Excitation V-ref. (Max) Set Viscosity Unmatched language key Excitation V Upgrade recovery Serial number changer...
Page 74: Rescue Soft
- Use this function when the IJ printer does not start up during turn on procedure. - Use the Rescue soft which is prepared by Hitachi. - This function will initialize all registered data and settings, ensure reinstall all data and settings with “Back up”...
Page 75 2 Resetting Items. Confirm as following items after rescue procedure. Item After rescue Back up data Serial number [00000000] Reinstall from Unit information screen. Language1 : English, Select Languages Language2 : none, Reinstall from language select screen. Input mode : 1 ○(Back up data) Option setup Not supported...
Page 76: Maintenance Of Controlling Part
3. Maintenance of controlling part 3.1 Construction of controlling part The controlling part is mainly composed of a controller part of performing the display and the data management, an engine part of performing the printing control and the circulation system control, I/O part of performing external signal control, and interior of inlet cover at primary power side.
Page 77 [Engine part (cover-opening state)] High voltage power supply Multiple power supply Battery DC fan EZJ125 EZJ126 EZJ132 [I/O part (cover-opening state)] EZJ119 board (Available as option) Fixing screw (M3x2) EZJ127 board IJP LAN UNIT Fixing screw (M3x2) (Available on some models as option) Fixed with plastic holder Caution When opening the maintenance door in a state where the surface of the main body is...
Page 78 [Interior of Inlet cover part (cover-opening state)] Caution against electric shock AC power is supplied to interior of the inlet cover. Be sure to cut off the power supply and wait for at least 10 seconds to pull the power cable out of the outlet before opening the cover.
Page 79 [Component table of the Controller circuit board and electric parts by models] er-opening state)] Y---Use, N---No use, OP---Option [Controller circuit board] Parts name Function RX2-S RX2-B EZJ126A ASSEMBLY MPU board RX2-S EZJ126B ASSEMBLY MPU board RX2-B EZJ125 ASSEMBLY Nozzle Drive board EZJ128 ASSEMBLY Controller board EZJ127A ASSEMBLY...
Page 80: Controller Part
3.2 Controller part - With regard to the electric parts/control board of the controller part, the functional outline, the list of the check point and the note at the replacement are described. 3.2.1 EZJ128 board (controller board) [ Function] - Preparation/management of print data is performed. - Program, user data and environment setup data are stored.
Page 81 Caution As for the copy data function, the user mode and the service personnel maintenance mode are different. When replacing the EZJ128, put it into the service personnel As for the System maintenance mode and then perform the backup. reset, see “2.8 System -User mode: User data (printing data (Note 1), substitution rules, user patterns) reset”.
Page 82 EZJ128 board external views Connector for battery connection C55+ Fixing screw (3 locations) Fixing screw (3 locations) Connector for EZJ 114 board Connector for EZJ126 board Connector for IC34 Connector for LCD harness Connector for touch panel Without Fixing screw Fixing screw (3 locations)
Page 83: Battery
3.2.2 Battery [Function] - The back up battery for the RTC (Calendar IC) on the EZJ128 board - 2 batteries are used per 1 machine. Backup batteries for EZJ126 board and EZJ128 board. With respect to the setting of date and time, refer to the Instruction manual “6.2 [Note at the replacement] setting the Date and...
Page 84: Lcd
3.2.3 LCD [Function] - The LCD panel for screen display. [Note at the replacement] - Be sure to turn off the power when replacing the panel. - After replacing, insert the flexible flat cable that connects the LCD to EZJ128 board to right places.
Page 85 (2) How to insert the FFC Insert the FFC with its contact surface facing down. Also insert the FFC in a direction perpendicular to the connector. (Figure 3) Figure 3 Figure 4 Contact surface Caution when inserting FFC Insert the FFC in a direction perpendicular to the connector. Incorrect insertion like shown in figure 4 could cause conduction failure or breakage of the actuator.
Page 86: Touch Panel
3.2.4 Touch panel Function] -Input system for display screen operation. [Note at the replacement] - Be sure to turn off the power at replacement. - After replacement, insert the connectors to right places. Caution when inserting or extracting touch panel connection cable When inserting the touch panel connection cable into the connector of the EZJ128 board, hold both sides of the reinforced...
Page 87: Engine Part
3.3 Engine part - With regard to the electric parts/control board of the engine part, the functional outline, the setting of the switch, the list of the check point and the note at the replacement are described. 3.3.1 EZJ126 board (MPU board) [Function] - Performs printing control, circulation system control, nozzle control (charge voltage, excitation voltage, auto phase and the like) and communication.
Page 88 (13) Recover the data from the USB memory by using the copy data function. (From the USB memory to the IJP) With respect to the replacement procedure of EZJ125, refer to “3.3.6 EZJ125 board”. Caution As for the copy data function, the user mode and the service personnel maintenance mode are different.
Page 89 [EZJ126 board external views] Connector for power supply TP321 “PGND” Connector for battery connection Connector for EZJ130 Not mounted on RX2-B TP774 TP1427 “Encoder-N” “Print-in-progress” TP323 “SGND” TP787 “Sensor-N” Not mounted on RX2-B Connector for Connector for EZJ125 board model key Connector for Two hexagonal spacers Connector for...
Page 90 3.3.2 Battery [Function] - The back up battery for the RTC (Calendar IC) on the EZJ126 board - 2 batteries are used per 1 machine. Back up batteries are for EZJ126 board and EZJ128 board. [Note at the replacement] Caution - Before replacing the battery, be sure to turn off the power.
Page 91: Ezj126 Board (Mpu Board)
[Note at the replacement] - In the event of breakage of model key, the key needs to be replaced. Contact to Hitachi factory. - Do not install model key that are removed from other machines. - Before the replacement, be sure to turn off the power.
Page 92 [Procedure for function addition using upgrade key for RX2-S] (1) Turn off the power and turn on the power with upgrade key installed on EZJ126. (2) Input a special password for service maintenance mode on Select login user menu. With respect to the setting (3) Select Upgrade screen on the second page of the service maintenance screen.
Page 93: Ezj125 Board (Nozzle Drive Board)
3.3.6 EZJ125 board (Nozzle drive board) [Function] - Control of nozzle (charging voltage control, excitation voltage, APH detection, PTC control and the like) is performed. [Setting of switch/check point/LED display and the like] - Setting of switch Nozzle size 65µm DSW1 Mark Set both bits up.
Page 94 (3) Remove the connectors from CN4, CN6 and CN7. (4) Remove the EZJ125 board. *) At first, remove the fixing screws (2 positions). Then as the drawing below, push the hook of fixing spacer of EZJ125 board and pull up the EZJ125 board. (Two spacers) EZJ125 board Push the hook Spacer for fixing...
Page 95: Ezj127 Board (I/O Board)
3.3.7 EZJ127 board (I/O board) [Function] - The I/F signal with the conveyer is connected. Output signal: Ready, Fault, Warning, Printing-in-progress/Print-complete, On-line, With respect to the wiring, Universal output 1, Universal output 2 refer to Technical manual “4 Connection of signals”. Input signal: Print target detector, Print stop, Reciprocative printing, Encoder (for product speed matching),...
Page 96 [Setting of switch/check point/LED display and the like] - Setting of switch [SW1] Set content Default Bit 1 Setting is performed according to the specification of the encoder. Bit2 (Refer to the setting by types of the specification described below.) Bit3 Setting is performed according to the specification of the print target detector .
Page 97 - Check point/LED Reference Name Content number Floating GND Reference ground of external part (conveyer side) photo coupler insulation circuit LED1 Print target detector When the Print target detector is ON, it is lighted. input LED2 Printing stop input (PNP) When the printing stop signal input (PNP) is ON, it is lighted.
Page 98 [EZJ127A board external view] Terminal block: TB1 Two fixing screws Two fixing screws LED1 – LED23 Lot number: (Last digit: A) [EZJ127B board external view] Terminal block: Two fixing screws TB1 (13 pins) Two fixing screws LED1, LED4， LED19 Lot number: (Last digit: B) [Usage for the External connection terminal block 1 (TB1)] - Applicable cable size : AWG26 to 16 (Φ0.5to 1.3)
Page 99 [Procedure to add the option for RX2-B (change to EZJ127A board)] (1) Turn off the power and be sure not to supply the electric power to the wires connecting to TB1. (2) Remove the connectors and change to EZJ127A board. (Two fixing screws) (3) Insert the connectors and perform the setting of SW1 and 2.
Page 100 [External communication (RS-232C)] - Connector for external communication (RS-232C) is mounted on EZJ127A board. - Using signals: SD, RD and SG - Signal specification (NC: Unconnected) Name Input/Output Remarks Pin number (NC) Unconnected Input Output Connected to DSR on IJ printer Ground Connected to DTR on IJ printer Connected to CTS on IJ printer...
Page 101 3-26...
Page 102 3-27...
Page 103: Ezj132 Board (Ink Circulation Module Connection Board)
3.3.8 EZJ132 board (Ink circulation module connection board) [Function] - Electrical connection board between control part and ink circulation module part. [Notes in case of the board replacement] - Before replacing the board, be sure to turn off the power. - Use a φ2 lenghe:160mm Philips screw driver.
Page 104 [Replacement procedure of EZJ113 board] (1)Turn off the power and wait for more than 10 seconds. Then pull the plug out of socket. (2)Open the maintenance door and remove the ground wire. (3) Remove the fixing screws (4 positions) and remove the side cover and remove the ground wire.
Page 105: Ezj114 Board (Led / Sw Board)
3.3.10 EZJ114 board (LED / SW board) [Function] - LED display of Power, Ready, Fault, Warning, and Start / Stop switch [Notes in case of the board replacement] - Before replacing the board, be sure to turn off the power. - After replacing the board, be sure to joint connectors to right places.
Page 106 [Connection to the external connection terminal block (EZJ119A -TB2) ] Name Remarks Ready 30VAC/0.5A or 30VDC/1A 30VAC/0.5A or 30VDC/1A Fault 30VAC/0.5A or 30VDC/1A 30VAC/0.5A or 30VDC/1A Warning 30VAC/0.5A or 30VDC/1A 30VAC/0.5A or 30VDC/1A Terminal specification: M4 [Setting of switch 3] The ready output selector switch (SW3) is used to enable or disable the ready signal output.
Page 107: Ezj130 Board (Software Option Control Board)
3.3.12 EZJ130 board (Software option control board) [Function] - Input / output control board when software option is used. (Option for RX2-S) [Notes in case of the board replacement] - Before replacing the board, be sure to turn off the power. - After replacing the board, be sure to joint connectors to right places.
Page 108 [ Setting of SW/Check point/Display of LED etc ] [SW1] ●Setting of input signal Calendar stop signal Reserve input ＳＷ1 Mark Mark Both of bits are put Set the right bit to on the up position the bottom. 3-33...
Page 109: Ezj129 Board (Software Option Terminal Board)
3.3.13 EZJ129 board (Software option terminal board) [Function] - Input / output terminal board when software option is used. (Option for RX2-S) [Notes in case of the board replacement] - Before replacing the board, be sure to turn off the power. - After replacing the board, be sure to joint connectors to right places.
Page 110 [Specification of RS-232C communication connector] - External equipment is connected to the EZJ129 by serial communication of RS-232C. -Signal used : RD,SD,DTR,SG,DSR,RTS,CTS -Wiring ( NC is No connection ) Pin number Name Input / Output Remarks (NC) No connection Input Output Output Ground...
Page 111 [Connection to external connection block (TB3)] Name of signal Input / Output Remarks NPN/PNP NPN/PNP Interface － Signal ground Signal notifying Completion of signal input Output -NPN / PNP can be selected by SW7 Signal during calendar Updating Output Strobe signal Input - NPN / PNP can be selected by SW8 －...
Page 112 [ Setting of SW ] ●Setting of SW [SW4] Description Default Bit 1 Reserve ( Set to OFF ) Bit 2 Sets host communication (Set to OFF) Bit 3 Sets host communication (Set to ON) Bit 4 Switches the filter constant of strobe signal (capacitance) ON : 0.047 (uF) + 2.2(uF) OFF : 0.047 (uF) Bit 5...
Page 113 [SW6] Description Default Bit 1 Reserve ( Set to OFF) Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 8 [SW7] signal connection is NPN/PNP. Setting it according to the reserve input (Default setting is put on the up position.) NPN I/F PNP I/F Mark...
Page 114 -Check points / LED- Reference Name Contents number Floating GND Reference ground of external part (conveyer side) photo coupler insulation circuit LED1 Reserve input LED2 Reserve input LED3 Reserve input LED4 Calendar stop /Reserve input1 (NPN) LED5 Calendar stop /Reserve input1 (PNP) LED6 Data message number signal When the data message number signal bit 0...
Page 115 Reference Name Contents number LED26 Data message number signal When the data message number signal bit 10 bit 10(NPN) input (NPN) is ON, it is lighted. LED27 Data message number signal When the data message number signal bit 10 bit 10(PNP) input (PNP) is ON, it is lighted.
Page 116 3-41...
Page 117: Multiple Power Supply
3.3.14 Multiple Power Supply [Function] - AC input: AC100 ~ 240V (50/60Hz) DC output: +3.4V, +5.1V, +12V, -12V, +24V [Note at the replacement] - In a few seconds after turned off the power, residual voltage is remaining on the parts of multiple power supply.
Page 118 (3) Disconnect the AC input connector of multiple power supply inside the side cover. [Inside of side cover] < RX2-S > < RX2-B > Ground wire Ground wire (Yellow/green (Yellow/green spiral) spiral) EZJ113 board AC input connector (4) Open the maintenance door. (5) Remove the wire harness from the wire clamp put on the high voltage power supply protective cover.
Page 119: High Voltage Power Supply
3.3.15 High Voltage Power Supply [Function] - Deflection voltage output : DC 5.7kV Max. Charge signal source voltage output : DC500V Caution against an electric shock The high voltage power supply has a portion where high voltage is applied. In order to avoid an electric shock, be sure to turn off the power before access the high voltage power supply.
Page 120: Dc Fan
3.3.16 DC fan [Function] - Input voltage: DC 24V For air agitation to uniform the controller part air temperature [Note at the replacement] - When replacing the DC fan, be sure to turn off the power. - Be sure to joint the connector. - When installing the DC fan, pay attention to the mounting direction of NP (name plate) and harness.
Page 121: Ijp Lan Unit (Ilu) (Option)
3.3.17 IJP LAN Unit (ILU) (Option) [Function] - Input voltage: DC 24V Output specification: RJ-45 connector, Ethernet communication [Note at the replacement] - When replacing the ILU, be sure to turn off the power. - Be sure to joint the connectors. Straight slot screws (M2.5) [ILU external view]...
Page 122: Electrical Connection Diagram
3.3.18 Electrical Connection Diagram 3-47...
Page 123 3-48...
Page 124 - Regarding the wire harness clamping position inside the maintenance cover, refer to following list. [RX2 model wire harness list] DWG No. Parts No. Name 3J83N95321 Card connector 2N4ZL2142A LED harness assembly 1N4ZE0065A Controller harness assembly 2N4ZL2138A Relay harness assembly 3N4ZM5783A AC harness assembly B 2N4ZH9186A...
Page 125: Maintenance Of Circulation System
4. Maintenance of Circulation System 4.1 Structure of Circulation System 4.1.1 General Structure of Circulation System The general structure of the circulation system is shown in the following figure. Using an open/close type door (unit door) as a partition, the system is roughly divided into an ink circulating area (the front side of the equipment) and a driving part area (the rear side of the equipment).
Page 126 4.1.2 Access to the parts on the front side of the equipment 1 Move the ink reservoir and the makeup reservoir to a safe place after removing the connection tube block. Connection tube block Connection tube block Ink reservoir Makeup reservoir Holder Ink filter 2 Remove the ink filter from the fixture and draw it out.
Page 127 4.1.3 Access to the parts on the rear side of the equipment (1) Access method from the front 1 Perform the operations of 1 to 3 in “4.1.2 Approach to the parts on the front side of the equipment”. 2 Remove the fixing screws (2 pieces) of the unit door and open the unit door. "Caution"...
Page 128 (2) Access method from the rear 1 Remove fixing screws (11 positions) of the rear cover and detach it. Rear cover These two screws can remain loosened.
Page 129: Main Ink Tank Replacement Procedure
4.2 Main Ink Tank Replacement Procedure 4.2.1 Periodical Check Items on Service Maintenance There is a case that the main ink tank would deteriorate earlier than usual depending on the condition of customer use. Please check the main ink tank at the time of periodical service maintenance.
Page 130 5 Remove the fixing screws (4 positions) of the main ink tank and take out the main tank. "Caution" Put wiping paper under the main ink tank to provide for an ink drip. Main ink tank Fixing screw Fixing screw 6 Clean the portion stained with ink and then install the main ink tank by reversing the above procedure.
Page 131: Pressure Reducing Valve Replacement Procedure
4.3 Pressure Reducing Valve Replacement Procedure 1 Perform “Pressure relief”. 2 Perform “4.1.2 Approach to the parts on the front side of the equipment”. 3 Remove Fastening screw M4x16 (2 positions: upper right and lower left of Pressure reducing valve) and Pressure reducing valve. And remove Fastening screw M4x12 (2 positions) and Pressure reducing valve joint PRV, and remove the O-rings (3 pieces).
Page 132 6 Pass Attaching pin through hole A and hole B for centering holes. Mount Pressure reducing valve joint PRV on Ink circulation unit by Fastening screw M4x12 (2 pieces). And then remove Attaching pin. "Caution" : - Make sure that no O-ring drops out. - Make sure to use Fastening screw M4x12.
Page 133: Joint Structure And Handling
4.4 Joint Structure and Handling 4.4.1 “ICU joint” structure and handling When removing the tube during the maintenance work, loosen the tube lock beforehand. The ICU joint should be removed only at occurrence of damage. Procedure for installing the tube ICU joint 1 Pass the tube through the tube lock.
Page 134 4.4.2 “Filter joint” structure and handling Usually, for disconnecting the tube, loosen the filter joint nut and remove the whole without disassembling the filter. Disassembling should be performed only at occurrence of damage. Disassembling the filter joint 1 Loosen the filter joint nut and remove the whole from the mounting part. 2 Fix the end of the filter joint and loosen the tube block.
Page 135: Solenoid Valves Replacement Procedure
4.5 Solenoid Valves Replacement Procedure "Caution " : MV8 (Cleaning valve) is deferent from other valves. Check the color of seal below. MV8 (Cleaning valve) Other valves Orange (Serial No.) White (Serial No.) 1 Perform the following pre-replacement operation for each solenoid valve that you are to replace.
Page 136 5 Remove the fixing screws (2 positions) of the solenoid valve. "Caution": Put wiping paper under the solenoid valve to provide for an ink drip. Fixing screw 6 Clean the portion stained with ink and then install a solenoid valve by reversing the above procedure.
Page 137: Pressure Sensor Replacement Procedure
4.6 Pressure Sensor Replacement Procedure 1 Perform “Nozzle Backwash”. (At the end of automatic stop without pouring the makeup to the gutter) 2 Turn off the power supply. 3 Perform “4.1.3 Approach to the parts on the rear side of the equipment”. (The reason is that the connector is provided on the rear side of the equipment.) 4 Remove the connector of the pressure sensor.
Page 138 6 Remove the fastener fastening the pressure sensor to the joint and remove the pressure sensor by pulling. "Caution": Put wiping paper under the Pressure sensor to provide for an ink drip. Joint Pressure sensor Fastener 7 After cleaning the portion dirtied by ink, wet the new O-ring with makeup and mount on the joint.
Page 139: Circulation Unit Replacement Procedure
4.7 Circulation Unit Replacement Procedure 1 Perform “Ink drainage” and then “Pressure relief”. 2 Turn off the power supply. 3 Perform “4.1.3 Approach to the parts on the rear side of the equipment”. 4 Remove the wire connecting part screws (3 positions) of the liquid level sensor in the main ink tank and the exhaust tube.
Page 140 6 Remove the clamps (5 positions) that fix the wires. 7 Remove the connectors of the electric parts (15 positions) (motor, solenoid valves(8 positions), pressure sensor, viscometer (3 positions), level sensor and float sensor) 5 positions 1 position 8 positions 1 position 8 Remove the fixing screws at 4 positions that fix the circulation unit.
Page 141: Pump Parts Replacement
4.8 Pump parts replacement 4.8.1 Pump Unit Replacement Procedure 1 Perform “Ink drainage” to “Pressure relief”. 2 Turn off the power supply. 3 Perform “4.1.3 Access to the parts on the rear side of the equipment”. 4 Remove the clamps (3 positions) that fix the wires. 5 Remove the connectors of the electric parts (7 positions) (motor, pressure sensor, viscometer (3 positions), level sensor and float sensor) 5 positions...
Page 142 Pull out seven (7) connectors toward, which were removed in item 5. Then, remove the tubes (4 positions) connected to the pump unit and remove the screws (2 positions) that fix the pump unit on the door. (Remove the ICU joint to remove the tube shown by dashed line, and loosen the tube lock to remove the others.) Remove the ICU joint Pull out seven (7) connectors.
Page 143 8 Remove the fixing screws (8 positions) at the upper and lower connecting parts of the circulation unit. The pump unit can be removed. "Caution": Put wiping paper under the pump unit to provide for an ink drip. Fixing screw ( 8 positions ) 9 Clean the portion stained with ink and make sure that the O-rings (4 positions) are securely mounted in the concave parts of the lower-side circulation unit.
Page 144 4.8.2 Motor or Drive unit replacement 1 Turn off the power supply. 2 Perform “4.1.3 Approach to the parts on the rear side of the equipment”. 3 Remove the connector from the Motor. Motor connector Motor Unit door 4 Remove the screws (4 positions) that fix the motor. The motor can be removed.
Page 145 5 Attach the spacer which was removed in 4 to the Pump Unit. Cause: Attach the spacer in the direction of the chart below. Spacer Pump Unit 6 Install a new motor by reversing the above procedure. Pump Unit Motor Fixing screw Spacer Board shall be placed at the bottom.
Page 146: Troubleshooting When Fault Occurs In Viscometer
4.9 Troubleshooting when Fault Occurs in Viscometer Perform the following when abnormality occurs in the viscometer: Caution: If abnormality occurred when “Viscometer Calibration” was executed during installation, no “coefficient” can be determined. If “coefficient” has not been determined, the IJP will automatically switch to the dot count system and operate.
Page 147 (D) Pull out the viscometer IN-side tube (mark G) from viscometer. (The ink in tube will slightly drip: Fit wiping paper to the end of tube. No reverse flow of ink will occur inside the viscometer.) (E) Immediately lift the end of removed tube higher than the level of liquid in main container, and then continue this for at least 10 seconds (to return the ink in tube to the main container).
Page 148 4.9.2 Disassembling and washing viscometer 1 Remove the three setscrews from viscometer cover, and then remove the cover. 2 Place the viscometer upside down while fitting wiping paper to the plunger, and then remove the plunger. (Let all of the ink remaining in viscometer seep out to the wiping paper.) 3 Make sure that no ink remains in viscometer, and then pull out the cylinder.
Page 149 4.9.3 Viscometer assembly procedure 1 Replace the cylinder, and then insert the plunger. Handle the plunger with tweezers making sure that no dust adheres to the surface of plunger. 2 Set the collar to cylinder, taking care with its orientation (with the convex up). 3 Make sure that an O-ring is set in the viscometer cover, and then assemble the cover into the viscometer case.
Page 150 4.9.5 Proximity sensor replacement procedure Replace the single proximity sensor when it is faulty. Caution: Perform replacement only after turning power off. Do not spill the intensifier over the proximity sensor: Doing so could cause a fault. 1 Remove the viscometer from circulation unit, referring to item 4.9.1. 2 Remove the cover setscrew, and then take out the proximity sensor.
Page 151: Print Head Replacement Procedure
4.10 Print Head Replacement Procedure 1 Carry out “ink drainage.” 2 Turn off the power supply. 3 Open the maintenance cover and remove the print head connectors (5 locations) in the control area. High pressure line FG line Remove the side cover and the print head connectors (4 locations). 【The inside of a side cover】...
Page 152 6 Remove the removed tube from the fixing clamp. 7 Perform “4.1.3 Approach to the parts on the rear side of the equipment” and open the unit door. 8 Remove the back cover. Fastening screws (11 locations) Fastening screws Fastening screws Fastening screws screws Fastening screws...
Page 153 11 Remove the print head fastening screws (4 locations) on the rear surface of the unit and remove the print head from the unit. Fastening screws (4 locations) 12 Install a new print head by reversing the above procedure. 14-core cable shall be placed at the most right end. [NOTE] When Head H Clamp is installed into the printer, please install it as 14-core cable (the thickest cable) shall be placed at the most right end when viewed from the rear of the printer.
Page 154: Troubleshooting Procedure For The Circulation System
4.11 Troubleshooting Procedure for the Circulation System Perform “(1) Fault locating and repairing method” for each trouble symptom. For the items marked * in “Probable Cause”, perform “(2) Locating method for the control system/circulation system” to make sure that the control system is normal, and then perform the repair work.
Page 155 Check method Symptom Probable cause Repairing method The supply The same as “Ink does not jet". pump malfunctions. When “Open” is Replace or repair the executed on the solenoid valve (MV1). Refer to “4.12 Repairing * MV1 Solenoid Valve/Pump malfunctions. Test screen, no method when the operation sound is...
Page 156 Symptom Probable cause Check method Repairing method The recovery The same as “The supply pump malfunctions ". pump malfunctions. When “Open” is Replace or repair the executed on the solenoid valve (MV3). The solenoid * MV3 Refer to “4.12 Solenoid valve Valve/Pump Test Repairing method...
Page 157 Symptom Probable cause Check method Repairing method The supply The same as “Ink does not jet. pump malfunctions. When “Open” is Replace or repair the executed on the solenoid valve The solenoid Solenoid (MV6). Refer to Charging or * MV6 “4.12 Repairing valve Valve/Pump Test...
Page 158 (2) Fault locating method for the control system/circulation system (a) When the pump motor and all the solenoid valves are not operated, the multi- power supply (24 V system) is abnormal. (b) If the electric parts (pump motor, solenoid valves, and pressure sensor) are not operated in any case other than the above, make the following checks first.
Page 159: Repairing Method When The Circulation Route Is Dry Or Sticks
4.12 Repairing Method When the Circulation Route Is Dry or Sticks 4.12.1 Cleaning method for the solenoid valve 1 Remove the sticking solenoid valve. (Refer to “4.6 Solenoid Valves Replacement Procedure) 2 Connect the connector of the target solenoid valve. 3 Inject the makeup with the flush bottle from the holes shown in the following figure until it overflows and leave for about 10 minutes.
Page 160 4.12.3 Repairing method for the makeup pump 1 Remove the tube connecting block of the makeup reservoir and connect the cleaning bottle. (You can apply pressure more easily by putting a tube between the pipe and the cleaning bottle.) Cleaning bottle Pipe Pipe[N] 2 Operate the pump and then MV7 on the “Solenoid Valve/Pump Test”...
Page 161: Maintenance Work Of Intake Fan Unit
4.13 Maintenance work of intake fan unit 4.13.1 Structure of intake fan unit Intake fan cover Screw Air filter Intake fan unit assembly Intake fan Intake fan cover assembly 4.13.2 Replacement of intake fan unit 1 Turn off the power. 2 Loosen the screw and remove the intake fan cover.
Page 162 4 Remove the mounting screws (4 locations) of intake fan unit assembly. Fastening screws (4 locations) Intake fan unit assembly 5 Remove the intake fan harness. Intake fan harness 冷却ユニットクミ Intake fan unit assembly Intake fan cover assembly 6 Remove the mounting screws (4 locations) of Intake fan cover assembly. Fastening screws (4 locations) 7 Remove the intake fan unit on two positioning bosses and pull out the harness.
Page 163: R Air Filter Replacement Procedure
4.14 R air filter Replacement Procedure [Replacement interval] - The replacement interval of the R air filter is about 4800 hours as a standard, but the proper replacement interval varies with the printer’s operating environment condition. Replace the R air filter at the same time with the air filter (in every two times).
Page 164 5 Reset the time of the R air filter to 0 on the “Parts usage time management” screen. 4-40...
Page 165: Liquid Spill Check On Exhaust Duct
4.15 Liquid Spill Check on Exhaust Duct The exhaust contains the vapor of makeup and it will be liquefied when cooled down. Depending on the IJP’s installation environment, there will be a case that there is a big difference between IJP’s inside temperature and the operating temperature. When IJP is installed or when IJP is serviced at periodical maintenance, please check the items below: (1) Is there any wiring routed around the exhaust duct, such as the power cord, the electrical...
Page 166: Print Head Related Maintenance
5. Print head related maintenance 5.1 Print head rough configuration Coupling Heating unit connector Shutoff valve (MV9) connector Cover switch connector Shutoff valve Heating unit （ＭV9) Air purge tube Cover switch Nozzle excitation connector Video signal APH board Coupling cover line Nozzle APH sensor...
Page 167: Cable Running Direction
5.2 Cable running direction The cable running direction can be changed as shown in the following figure. The customer should not attempt to run the cable himself. The cable should be run by a service technician. １ Remove the 4 fastening screws. Pull out the coupling approximately 10 mm.
Page 168: Gutter Configuration And Replacement Method
5.3 Gutter configuration and replacement method 5.3.1 Gutter configuration Following configuration differs according to the type of machine O-ring 1.6 With membrane 5.3.2 Replacement method １ Remove the 2 fastening screws ２ The gutter base and APH shield plate come off. APH shield plate *Note The packing consists of a combination of 2 types.
Page 169: Mgv Filter Replacement
5.4 MGV filter replacement １ Depressurize the printer. ２ Remove the head cover and the heater cover. MV9 filter ３ Remove the lead wire Air purge tube of the nozzle and air purge tube. Lead wire Coupling cover ４ Remove Screw A(1 location) and remove the coupling cover.
Page 170 ＭＶ 9 ６ Lift the MV9. ７ (1)Remove the nozzle-IN joint from the MV9 filter then remove O-ring 3.9. MV9 filter Fix a new MV9 filter and O-ring 3.9. Nozzle-IN joint Perform the assembly after dipping the O-ring in makeup, and confirm that the O-ring does not jump out of the hole.
Page 171: Shutoff Valve (Mv9) Replacement
5.5 Shutoff valve (MV9) replacement １ Depressurize the printer. ２ Remove the head cover and the heater cover. ３ Disassemble the shutoff valve connector. Shutoff valve connector Air purge tube ４ Remove the nozzle lead wire and the air purge tube. Lead wire Coupling cover ５...
Page 172 ＭＶ 9 ７ Take up the shutoff valve(MV9), remove the makeup in joint and remove the shutoff valve (MV9). When the O-ring (P2.2) is remained at the heating unit, remove it. ８ (1)Put the MV9filter, O-ring3.9, O-ring2.2and O-ring1.7 into the respective holes of the joint part.
Page 173: Heating Unit Replacement
5.6 Heating unit replacement １ Depressurize the printer. ２ Remove the head cover and the heater cover. Air purge tube ３ Remove the nozzle lead wire and the air purge tube. Lead wire ４ (1)Remove Screw A(1 location) and remove the coupling cover. Coupling cover (2)Remove the heating unit joint presser foot and remove the ink-supply tube(E)
Page 174 ＭＶ 9 ６ Remove the shutoff valve.(MV9) (Refer to 5.5 Replacement of shutoff valve) ７ Remove the 4 fastening screws of the heating unit. Heating unit Remove the rear cover (8 screws) ８ Remove the connector and remove Heating unit the heating unit.
Page 175: Aph Board Replacement
5.7 APH board replacement １ Remove the head base rear cover APH board Fastening ２ Remove the APH board fastening screw. ３ Slide approximately 4 mm. ４ Pull out. Connector Connector ５ Remove the connectors (2 locations). APH sensor ６ Remove the APH sensor Gutter base ...
Page 176: Nozzle Replacement
5.8 Nozzle replacement １ Depressurize the printer. ２ Remove the head cover and the heater cover. ３ Remove the excitation line from the 3P coupling cover and disconnect the connector. Nozzle out joint Nozzle Nozzle excitation connector Coupling cover ４ Remove the coupling cover fastening screw (B), the ground wire fastening screw (D) and charge electrode fastening screw (C).
Page 177 ６ Hold the tip of nozzle and remove the nozzle pulling it obliquely upward. ７ Attach a new nozzle and fix the nozzle setscrew, (2 locations), the nozzle IN joint presser foot (shutoff valve side), the nozzle OUT joint and the excitation connector. “Caution”...
Page 178: Nozzle Orifice Cleaning
5.9 Nozzle Orifice Cleaning 1) Detergent to use for an ultrasonic cleaning 2）Procedures of the cleaning Nozzle Clogging or Ink Stream Bent occurred. The ultrasonic cleaning with the Weak-Alkali Detergent is effective for the foreign objects of the nozzle orifice Eject the makeup *1 and confirm which it is hard to remove with MEK or the ink stream position if it is at...
Page 179 The efficient way to use the ultra-sonic cleaning machine The efficient way to use the ultra-sonic cleaning machine for ultra-sonic cleaning of the nozzle orifice 1: How to find the optimum cleaning position When the orifice is cleaned by the ultra-sonic cleaning machine, the aluminum foil can be used as a good trial sample to find the right position to place the nozzle orifice in the machine.
Page 180: Troubleshooting
6. Troubleshooting 6.1 Troubleshooting List Name Remarks Subsection Faults – Ink-stop type 6.2.1 Ink Low Fault 6.2.2 Main Ink Tank Too Full 6.2.3 Deflection Voltage Fault 6.2.4 Ink Replenishment Timeout 6.2.5 Ink Drop Charge Too Low 6.2.6 System operation error C/M/S 6.2.7 Deflection Voltage Leakage 6.2.8...
Page 181 Subsection Name Remarks Warning conditions (printing continuously performed) 6.4.1 Excitation V-ref. Review, Excitation V-ref. Review 2 6.4.2 Viscosity Reading Instability 6.4.3 Viscosity Readings Out of Range 6.4.4 High Ink Viscosity 6.4.5 Low Ink Viscosity 6.4.6 Battery Low M 6.4.7 Calendar Content Inaccurate Refer to the Technical manual “5.7.
Page 182: Faults - Ink-Stop Type
6.2 Faults – Ink-stop type 6.2.1 Ink Low Ink Low Open the maintenance cover. Uncap the ink reservoir and add ink. Is there ink in the ink reservoir? Is the fault cleared by pressing the Clear key? ● Turn OFF the power. ●...
Page 183 6.2.2 Main Ink Tank Too Full Main Ink Tank Too Full Is the initial-level sensor Open the maintenance cover. Check the initial- Is the ink main tank full Has the Main Ink level sensor Tank Too Fill fault of ink? connection again and frequently occurred? correct it if necessary.
Page 184 6.2.3 Deflection Voltage Fault Deflection Voltage Fault Is the EZJ125 board CN6 connector or high-voltage power supply output connector disconnected? Disconnect the connector and then Connect the connector. reconnect it. Does the printer become ready for printing? Replace the high-voltage power supply unit.
Page 185 6.2.4 Ink Replenishment Time-out Ink Replenishment Time-out Press the Reset key to clear the fault and execute “Ink refill”. Then restart the printer. Does the “Replenishment Time-out” fault recur? Does the MV2 (Replenishment valve) operate on the solenoid valve/pump test screen? Does the MV2 operate when Replace the connection Other operating solenoid valve...
Page 186 6.2.5 Ink Drop Charge Too Low Ink Drop Charge Too Low Is the nozzle clogged or the ink stream bent? Pour a cleaning solution over the orifice plate surface to clean it, then allow it to thoroughly dry. If the problem is not fixed: Are the charge electrode Execute the “Nozzle...
Page 187 6.2.6 System Operation error C / M / S System Operation error C / M / S Is the IJ printer connected to its dedicated ground? Properly establish the ground connection. 確実にアースを接続する Are the nozzle head and IJ printer main body insulated from the other equipment? Ensure that the print head...
Page 188 6.2.7 Deflection Voltage Leakage Deflection Voltage Leakage Does the ink stream enter the center of the Is the ink or makeup gutter? deposited on the deflection electrodes and their surrounding sections? Adjust the ink stream position. Is any foreign matter deposited between the Thoroughly remove deflection electrodes?
Page 189 Does the IJ printer become ready when you start it by pressing the Startup key with the high-voltage power supply unit output connector disconnected? Replace the high-voltage power supply unit. Resume the Is the alarm issued? operation. Replace the EZJ125 board. Resume the Is the alarm issued? operation.
Page 190 6.2.8 Makeup Replenishment Time-out Makeup Replenishment Time-out Press the Reset key to clear the fault and execute “Ink refill”. Then restart the printer. Does the “Replenishment Time-out” fault recur? Does the MV7 (Makeup valve) operate on the solenoid valve/pump test screen? Does the MV7 operate when Replace the connection other operating solenoid valve...
Page 191 6.2.9 Makeup Low Makeup Low Open the maintenance cover. Is the makeup reservoir charged with the makeup? Uncap the makeup reservoir and add the makeup. Turn OFF the power. Can the abnormality be cleared by pressing the Clear key? Is the sensor connector disconnected? (See the overall wiring diagram.)
Page 192 6.2.10 Ink Heating Unit Too High Ink Heating Unit Too High ▪ Clear the fault. ▪ From the maintenance screen, place *) Refer to the following caution. the heating unit in the operating mode. *) ▪ Restart the IJ printer. See Section “6.5.8, No ink ejection Does the ink jet out? from nozzle.”...
Page 193 6.2.11 Multi DC Power Supply Fan Fault Multi DC Power Supply Fan Fault Is the EZJ126 CN2 connector or Is the multiple power supply fan multiple power supply CN4 running? connector disconnected? Connect the connector. Replace the multiple power supply. Is the problem fixed? Replace the EZJ126 board.
Page 194 6.2.12 Charge Voltage Fault Charge Voltage Fault Remove the print head cover. Pour the makeup over the charge electrode area to clean it. ・ Allow the print head surface to adequately dry. ・ Clear the fault. ・ Restart the IJ printer. Does the printer become ready? Replace the EZJ125 board.
Page 195 6.2.13 No Ink Drop Charge No Ink Drop Charge Is the ink stream Refer to “6.5.8 No ink being ejected from ejection from nozzle.” the nozzle? Refer to “6.2.5 Ink Drop Is the nozzle clogged or Charge Too Low”. the ink stream bent? Refer to “6.2.5 Ink Drop Is the gutter section Charge Too Low”.
Page 196 6.2.14 Ink Heating Unit Temperature Sensor Fault Ink Heating Unit Temperature Sensor Fault Disconnect the EZJ125 board CN7 connector and reconnect it. ▪ Clear the fault. ▪ From the maintenance screen, place the heating unit in the operating mode. *) *) Refer to the following caution.
Page 197 6.2.15 Memory Fault C/M/S Memory Memory Fault M/S Fault C Does the fault recur Does the fault recur upon power-on reset? upon power-on reset? Do the system reset by rescue soft Do the system reset by rescue soft Does the fault recur? Does the fault recur? Replace the EZJ126 board.
Page 198 6.2.18 Ink Heating Unit Over Current Ink Heating Unit Over Current Is the PTC resistance measured (between the EZJ125 board TP3 and TP15) lower than 23 ? Replace the heating unit. ▪ Clear the fault. ▪ From the maintenance screen, place *) Refer to the the heating unit in the operating mode.
Page 199 6.2.19 Ambient Temperature Sensor Fault Ambient Temperature Sensor Fault Disconnect the EZJ125 board CN7 connector and reconnect it. Does the fault recur? Replace the print head. Does the fault recur? Resume the Replace the EZJ126 board. operation. 6.2.20 Cooling Fan Fault Cooling Fan Fault Disconnect the EZJ126 board CN21 connector and reconnect it.
Page 200 6.2.21 Pump Motor Fault Pump Motor Fault Pull out and insert the connector ・ CN13 of the EZJ126 board ・ CN1 and CN3 of the EZJ126 board ・ pump motor connector. Does the fault recur? Replace the pump motor. Does the fault recur? Resume the Replace the EZJ126 board.
Page 201 6.2.22 Viscometer Ink Temperature Sensor Fault Viscometer Ink Temperature Sensor Fault Disconnect and reconnect the following connectors. ▪ EZJ126: CN13 ▪ EZJ132: CN1, 3 ▪ Thermistor relay harness connector Does the fault recur? Replace the thermistor. Does the fault recur? Replace the EZJ126 board.
Page 202 Does the fault recur? Resume the It is necessary to change the model key. operation. Contact your local Hitachi sales office with the unit serial number and model name. 6.2.25 Language-key Failure Language-key Failure Does the fault recur after disconnect...
Page 203 6.2.26 Charge Voltage Too Low Charge Voltage Too Low Clear the fault. Place the printer in The “Ready” state. Does the fault recur? Replace the EZJ125 board. Does the fault recur? Replace the high-voltage power supply. Does the fault recur? Replace the EZJ126 board.
Page 204: Faults - Print-Stop Type
6.3 Faults – Print-stop type 6.3.1 Ink Drop Charge Too High Ink Drop Charge Too High Clean the gutter section and its surrounding area with a cleaning solution. (When using carbon type ink, remove the deflection plate, Is the gutter charge plate and gutter, then clean the mounting base surface as mentioned on section soiled?
Page 205 6.3.2 Barcode Short On Numbers Barcode Short On Numbers Input the fixed number of character for EAN-13, EAN-8, UPC-A, UPC-E Resume the operation. Fixed character number When country code is input When country code is input on edit message screen on print format screen EAN-13 EAN-8...
Page 206 6.3.4 Count Overflow Count Overflow In case of count multiplication printing, set the count condition so that the digit number of integer part of multiplication result (*) is not exceeded the input count character. *) Multiplication result = “Count value” x “Count multiplier” Resume the operation.
Page 207 6.3.6 Print Head Cover Open Print Head Cover Open Is the print head cover removed? Properly install the print head cover. Is the print head cover completely closed? Completely close the print head cover. Is the magnet inside the head cover damaged or missing? Properly install the magnet.
Page 208 6.3.7 Improper Sensor Position Improper Sensor Position Is the repeat printing function required? Is there an excessive clearance between the print head and print target detector? Is the “Repeat count” is set to “0000” from the print Decrease the specifications screen? clearance between the print head and print target...
Page 209 6.3.8 Target Sensor Fault Target Sensor Fault Is the target sensor fault function required? From the printing specifications screen, select a “Target sensor timer” setting of “0000”. Is the “Sensor out timer” setting is greater than necessary for the sensor normal ON time? Select a setting that is greater than necessary.
Page 210 6.3.9 Target Spacing Too Close Target Spacing Too Close Are there more than four workpieces (print targets) between the sensor and print head? Decrease the clearance between the sensor and print head and reduce the number of workpieces between the sensor and print head to four or less.
Page 211 6.3.11 Blank Print Items Blank Print Items Does any print item consisting of Blank characters alone exist? Adjust the print contents so that print items consisting of Blank characters only no longer exist. Resume the operation. 6.3.12 Excessive Format Count Excessive Format Count Are there more than nine columns having...
Page 212 6.3.13 Internal Communication Error C / M Internal Communication Error C/M Is the EZJ126 board CN1 connector disconnected or in poor contact? Is the EZJ128 board CN1 connector disconnected or in poor contact? Ｎo Used the SOP05 for Normality is restored when the call up print data? connector is disconnected and then reconnected.
Page 213 6.3.14 Invalid Data Change Timing 6.3.15 Invalid Count Data Change Timing 6.3.16 Invalid Print Start Timing Invalid ******** Timing Resume the operation. SUPPLEME The print target detection signal entered while the printer was not ready. See that the print target detection signal enters after a while. 6.3.17 Ink Shelf Life Information Ink Shelf Life Information...
Page 214 6.3.19 Free layout printing failure Free layout printing failure Delete the specific print items or Decrease the Ink drop use rate. ( ex. 1/2→1/3) Does the fault recur? Resume the operation. Note More detail, refer to the manual 4.8 Set the print format [Free layout; RX2-S only]. 6-35...
Page 215 6.3.19 Print data changeover error C/M Print data changeover error C/M Edit the message again STOP mode? Does the fault recur? when the printer is Stop. Edit the message again, after system initialization.. Copy the data from USB Does the fault recur? to IJP 戻す...
Page 216: Warning Conditions (Printing Continuously Performed)
6.4 Warning conditions (printing continuously performed) 6.4.1 Excitation V-ref. Review, Excitation V-ref. Review 2 Excitation V-ref. Review Readjust the excitation setup. Resume the operation. 6.4.2 Viscosity Reading Instability Viscosity Reading Instability Viscosity Reading during installation Instability (calibration) Perform the viscometer Re-execute viscometer calibration (2-3 times).
Page 217 6.4.3 Viscosity Readings Out of Range Viscosity Reading Out of Range Perform the viscometer operation test on the Circulation system control screen. Is it normally measured? Replace the ink. Is it normally measured? Disconnect and reconnect the following connectors. ▪ EZJ126: CN13, CN22 ▪...
Page 218 6.4.4 High Ink Viscosity High Ink Viscosity Check the printing quality. Is the printing quality normal? Replace the ink. Operate the printer for an hour or so, and check the ink viscosity. Has the viscosity increased? Replace the ink in the ink reservoir. Resume the operation.
Page 219 6.4.6 Battery Low M Battery Low M Is the EZJ126 board CN14 connector disconnected or in poor contact? Normality is restored when the connector is disconnected Replace the battery in the and then reconnected. engine section. Does the fault recur? Replace the EZJ126 board.
Page 220 6.4.8 Excitation V-ref. Char. Height Review Excitation V-ref. Char. Height Review Readjust the excitation setup. Resume the operation. 6.4.9 Ink Shelf Life Exceeded Ink Shelf Life Exceeded Has the “Ink alarm time” preselected from the operation management screen elapsed since last ink replacement? Was the “Ink operating time”...
Page 221 6.4.10 Ambient Temperature Too High / Too Low Ambient temperature Too High / Too Low Properly set the Ambient Is the Ambient temperature upper-/lower-limit value temperature upper-/lower-limit erroneously set? value. Use an air-conditioner or the like Does the IJ printer to ensure that the IJ printer temperature indication agree ambient temperature is within...
Page 222 6.4.11 Ink Pressure High Ink Pressure High Check the indicated value and standard value of the ink pressure on the Operation management screen. Is it above the upper limit? (Indicated value > standard value x 1.10) Can the pressure be adjusted by the pressure reducing valve? Replace the pressure reducing...
Page 223 6.4.12 Battery Low C Battery Low C Is the EZJ128 board CN8 connector disconnected or in poor contact? Normality is restored when the connector is disconnected Replace the battery in the and then reconnected. controller section. Does the fault recur? Replace the EZJ128 board.
Page 224 6.4.13 Ink Pressure Low Ink Pressure Low Does MV1, 2, 4, 9 operate? Replace or repair the troubled solenoid. Does ink flow into main tank when operating pump, MV1 & MV6? Does ink flow into main tank when operating pump, MV2 & MV6? Replace or repair the supply pump Replace or repair the CV assembly.
Page 225 6.4.14 Product Speed Matching Error Product Speed Matching Error The frequency of the encoder signal is exceeding the printing capability of the IJ printer. Lower the frequency of the encoder signal, or increase its dividing ratio. Note that the printed character width will change if the Pulse rate div.
Page 226: Faults - No On-Screen Indications
6.5 Faults - No on-screen indications 6.5.1 Chipped print (lower dots) Chipped print Direction of Is the ink stream deflection positioned at the center of the gutter? Adjust the ink stream Missing dots position so that the ink Is the ink pressure stream is centered with higher that the respect to the gutter.
Page 227 6.5.2 Chipped print (upper dots) Missing dots Chipped print Direction of deflection Is the ink stream positioned at the center of the gutter? Adjust the ink stream position so that the ink Is the ink pressure stream is centered with lower than the respect to the gutter.
Page 228 6.5.3 Varying character height Varying character height Is optimum clearance provided between the nozzle head end and print target? Optimize the clearance between the nozzle head end and print target. Was the character height setting changed? Adjust the character height setting. Is the ink pressure within the specified range?
Page 229 6.5.4 Increased character distortion Increased character distortion Is optimum clearance provided between the nozzle head end and print target? Optimize the clearance between the nozzle head Is the ink pressure end and print target. higher than the specified limit? Has the operating Can the ink pressure time exceeded the ink be adjusted?
Page 230 6.5.5 Disordered characters Disordered characters Are the upper or lower print dots lost? See under “Chipped print”. Is the upper end of the print blotted? Is the operating temperature with the specified limits? Ensure that the operating temperature is within the specified limits.
Page 231 6.5.6 Ink leakage/blowout Ink leakage/blowout Is the ink stream bent, dislocated from the gutter, or brought into contact with the gutter edge? Clean the orifice plate and the inside and outside of the nozzle head cover with the makeup, and then allow them to thoroughly dry.
Page 232 6.5.7 Printing initiation failure in ready-for-printing state (no prints) No prints Does the obtained Is the printer in the Is the print start print consist of “Ready” state? signal entered? spaces only? Check the print Is the “Product target detector speed matching”...
Page 233 6.5.8 No ink ejection from nozzle No ink ejection from nozzle Does the on-screen pressure reading represent the specified value? Execute the nozzle Is the supply backwash function. pump running? Is the EZJ126 board Is the problem CN13 connector, fixed? EZJ132 board CN3 Replace the ink filter connector, or pump...
Page 234 6.5.9 Freeze of display *) “Freeze of display” means that the touch screen does not operate without any error message when the screen is touched. Freeze of display Turn off and on the power switch. Does the screen operate normally? Download the latest software Does the screen operate normally?
Page 235 6.5.10 Problems due to inappropriate ink stream position in charged electrode If the ink stream does not pass through the charged electrode, the following > problems may occur: (1) The height of printed characters will be larger than standard. (2) Since the ink drops are not charged normally: - The character quality will degrade (characters are distorted).
Page 236 6.5.11 Problems due to inappropriate ink stream position to gutter If the ink stream does not enter the center of gutter, the following problems may > occur: (1) The ink stream hits the inner wall of gutter inlet and “splash” occurs. This will dirty the gutter, causing either Ink Drop Charge Too High or No Ink Drop Charge.
Page 237 6.5.12 Increase of dot missing - “Dot missing” is a phenomenon in which some of the dots comprising a character are lost. Generally, missing of one per several thousand Deflecting dots is normal, but this may increase if the missing direction following abnormal status continues: (1) When equipment was in the ink ejecting status (standby status) but ink was...
Page 238 6.5.13 Handling of the charge related faults - The model after PX are changed from the model KX in terms of handling of the charge related faults as follows. Model KX Faults Ink ejection Conditions that the fault occur No electrical Ink is stopped.
Page 239 6.5.14 Failure of adjustment of excitation voltage Failure of adjustment of excitation voltage Disconnect and reconnect the Is the EZJ125 board CN5 Resume the EZJ125 board CN5 connector connector disconnected or operation. correctly. in poor contact? When the adjustment Is the DSW1 of Is the excitation fails, is the voltage of EZJ125 board...
Page 240 6.5.15 System Error *) This alarm is displayed when download failed. System Error ** Insert the system-data USB memory and turn on the power switch. Does the fault restore? Make a system-data USB memory again. Insert the new system-data USB memory and turn on the power switch to restore.
Page 241 6.5.16 Power does not turn ON after pressing Start button Power does not turn ON Does the trouble fixed after disconnection and reconnection of the following connectors? -CN20, CN23, CN2 of EZJ126 -CN4 of EZJ113 -CN2 of EZJ114 Does the trouble fixed after replacing the EZJ114 board? Does the trouble fixed after replacing the EZJ113 board?
Page 242 6.5.18 No ink suction from gutter. No ink suction from gutter Is the tube of recovery line or exhaust line folded? Or, is ink clogged? Replace the tube or clean the tube. Is the problem fixed? Does MV3 operate? Repair the sticking of MV3 or replace it.
Page 243 6.5.19 Power Restoration Procedure Power Restoration Procedure Is the EZJ126 board CN1 connector disconnected or in poor contact? Is the EZJ128 board CN1 connector disconnected or in poor contact? Normality is restored when the connector is disconnected and then reconnected. Replace the EZJ128 board Does the fault recur? Replace the EZJ126 board.
Page 244 6.5.20 Startup process after long-term shutdown and How to restore the operation “Restart Operation After Long-Term Shutdown” Solenoid valve verification Refer to “4.6 solenoid valve replacement” and/or “5.5 Shutoff valve (MV9) Are the valves making operation sound? replacement” or “4.10.1 How to restore operation when solenoid valve seizure occurs”.
Page 245: Firmware Download Failure
6.5.21 Firmware download failure Fi r m war e downl oad f ai l ur e Insert the system USB to USB slot then turn on printer Internal communication error occurred? Download is restart? Download is complete properly? Do the system reset by rescue soft Download is complete properly? Replace the EZJ126 board.
Page 246 6.5.22 Language download failure Language downl oad f ai l ur e Insert the system USB to USB slot then turn on printer Go to Language select screen with service mode 言語選択画面を開く Registered language is correct? Resister the correct language Download is complete properly? Print the Kana/Detected char/Kanji Print result is correct?
Page 247: Attached Drawing
7. Attached Drawing 7.1 Circulation System Diagram...
Page 250 Eject Ink （Goes to Ready）ＯＮ Sequence Name ＯＦＦ Operation [Start up] - [Eject ink] Remarks Start sequence － Step Interval Pre-heating Refresh ink Pressurize Suck Eject Eject ink Suck air in Detect bent Suck air in Interval for Refresh ink Heating Detect the Ready...
Page 251 Sequence Name Cleaning stop Operation [Shut down]→[Shut down] or [Circulation Control] - [Cleaning stop] Remarks Suck the circulation / recovery path － Step High- Interval Pressurize Eject Makeup Check the Pressure- Pressure- Pressure- Outline voltage OFF the makeup MV8 OFF relief relief the relief the...
Page 252: Dimensions Around Charge Electrode And Deflection Electrode
7.4 Dimensions around charge electrode and deflection electrode 【Nozzle diameter: 65μm】循環系統図...

Hitachi IJ RX2 Service Manual

1 Introduction

2 Maintenance Work

3 Maintenance of Controlling Part

4 Maintenance of Circulation System

5 Print Head Related Maintenance

6 Troubleshooting

7 Attached Drawing

Quick Links

Service Manual

Troubleshooting

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Summary of Contents for Hitachi IJ RX2

Table of Contents