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Sharp 00ZSF1116/A1E Service Manual
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Sharp 00ZSF1116/A1E Service Manual

Sharp 00ZSF1116/A1E Service Manual

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[ 1 ] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
[ 2 ] PRODUCT SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
[ 3 ] PRODUCT VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
[ 4 ] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
[ 5 ] DESCRIPTION ON EACH SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
[ 6 ] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
[ 7 ] ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
[ 8 ] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
[ 9 ] SELF DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
[10] MEMORY TROUBLES, FLOWCHART FOR REPLACEMENT OF
MAIN CONTROL PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 1
[11] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
[12] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1
Parts marked with "!" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
CODE: 00ZSF1116/A1E
SF-1116
MODEL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

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Summary of Contents for Sharp 00ZSF1116/A1E

  • Page 1: Table Of Contents

    SERVICE MANUAL CODE: 00ZSF1116/A1E SF-1116 MODEL CONTENTS [ 1 ] PRODUCT OUTLINE ..........1 – 1 [ 2 ] PRODUCT SPECIFICATIONS .

  • Page 2: 1 ] Product Outline

    Contents [1] PRODUCT OUTLINE [5] DESCRIPTIONS OF EACH SECTION ....1-1 . . 5-1 1. Product features ......1-1 Paper feed section .
  • Page 3 1) Copy lamp replacement ....6-6 10-1. Separation roller ....6-24 2) Mirror base wire replacement and 10-2.
  • Page 4 [10] SERVICING AT MEMORY TROUBLE AND MAIN CONTROL PWB REPLACEMENT ..... . . 10-1 1. General ......10-1 2.
  • Page 5 [1] PRODUCT OUTLINE 1. Product features (1) Compact body (2) Clean copy gentle to the environment • • Compact body size Silent design, The body width of 600mm is the smallest in the class. • Low level of ozone, use of recyclable materials •...

  • Page 6: 2 ] Product Specifications

    (12) Additional functions [2] PRODUCT SPECIFICATIONS Function Remark × Auto Paper Selection Auto Magnification ratio 1. Basic specifications × Selection (1) Type: Table top Shift 1-set 2-copy Enlargement is impossible. (2) Copy speed: Edge erase Enlargement Reduction Normal Built-in auditor (Magnification) (Magnification) 20 departments...
  • Page 7 (2) Optical section 2. Description of each section Light source Halogen lamp (1) Paper feed section Exposure system Slit exposure by moving the light source A3 ∼ A6/Ledger ∼ Invoice Copying size Zooming system By changing the lens positions and the scan Paper feed system 1 tray + multi manual feed speed.
  • Page 8 Middle & South America/Asia (excluding China) Name Content Life Product name Photoconductor kit Photoconductor drum SF-226DR Cleaner blade Drum separation pawl Black developer Black developer (530g) x 10 60K x 10 SF-226CD Black toner Black toner bottle (280g) x 10 6K x 10 SF-126CT Upper heat roller kit...
  • Page 9 (2) 10-bin sorter 4. Optional specifications <Model name: SF-S17 N> (1) Automatic document feeder (ADF) Type Copier installation type/Hanging type <Model name: SF-A18> Distribution system Bin shift by lead screw Original set direction Face up No. of bins 10 bins (The top bin is used also for Original set position Center reference non-sort.)
  • Page 10 (3) 10-bin staple sorter (10-bin SS) Staple section Type Copier stapler <Model name: SF-S54> Stapling time 1.8 sec Type Copier installation type/hanging type No. of stapled sheets 30 sheets (80g/m , 21 lbs.) Distribution system Bin shift system by lead screw Binding reference Front reference No.

  • Page 11: 3 ] Product Views

    [3] PRODUCT VIEWS 1. External view and internal structure Name Name Name Original cover Original table Paper exit tray Grip Manual feed original guide Manual feed tray Operation panel Front cover Power switch Paper tray Developing unit grip Toner hopper Fusing unit Developing unit lock lever Release lever...
  • Page 12 2. Operation panel 9 10 11 12 200% SORTER EXPOSURE PAPER SIZE / 5 11 POWER SAVE AUDIT CLEAR DUAL PAGE 141% AUTO SORT COPY 11 17 129% / 8 14 MANUAL 11 17 121% PHOTO STAPLE 100% MARGIN SORT SHIFT 11 17 / 8 11...
  • Page 13 3. Clutches, solenoids, and motors Clutches and solenoids Signal name Name Functions, operations PSPS Paper separation solenoid Paper separation solenoid drive Resist roller clutch For resist roller rotation Transport roller clutch For transport roller rotation CPFC1 Tray paper feed clutch For paper feed roller rotation MPFS Manual paper feed solenoid...
  • Page 14 4. PWB Name Description Name Description Operation PWB A Operation input, display control Operation PWB B Operation input, display control Blank lamp PWB Used to control the blank lamp. DL PWB Used to drive the discharge lamp. Optical PWB AE sensor and lens motor interface Process control PWB Used to sense the toner density.
  • Page 15 5. Sensors and switches Signal name Name Type Operation, function Toner density control sensor Transmission sensor HIGH when toner density falls. ILSW Front cabinet open/close switch Interlock switch ON when closed. Power switch Seesaw switch Fusing heater thermistor Thermistor Greater resistance at low temperature Fusing heater thermostat Thermostat...
  • Page 16 6. Rollers, mirrors, etc. Name Name Name No. 3 mirror No. 2 mirror No. 1 mirror Copy lamp No. 4 mirror No. 5 mirror No. 6 mirror Developing unit toner box Manual tray — Take-up roller Paper feed roller Reverse roller PS front roller follower roll PS front roller Developing unit...

  • Page 17: 4 ] Unpacking And Installation

    Avoid high temperature and high humidity, and avoid sudden [4] UNPACKING AND INSTALLATION temperature change. (Avoid installation near a cooler or a heater.) If not, paper absorbs moisture and dew forms in the machine, causing paper jam or degraded image quality. 1.
  • Page 18 (5) Grounding wire connection Avoid installation to a poorly ventilated place. Connect the grounding wire to prevent against a danger. When connecting the grounding wire, connect only to the ground- ing object (the grounding terminal of the power outlet, etc.) and never connect to a gas pipe.
  • Page 19 3. Optical system lock release 4. Charger cleaning A. No. 2/3 mirror unit lock release A. Main charger unit electrode cleaning Remove the one fixing screw of the No. 2/3 mirror unit on the left side Press the hook section of the main charger unit to release lock, of the copier.
  • Page 20 Insert the main charger unit along the guide groove in the copier Remove three fixing screws of the toner hopper of the developing fully to the bottom. unit, and remove the toner hopper. Fixing screw Fixing screw Toner hopper Main charger unit Developing unit 5.
  • Page 21 Hold the hand carry strap of the developing unit and insert it into 7. Accessory installation the copier fully to the bottom. A. Copier tray installation Install the copy tray to the paper exit section on the left side of the copier.
  • Page 22 Hold the new toner bottle as shown and shake it four or five times. Close the toner hopper cover. Open the toner hopper cover. Slide the developer unit into the copier. Return the developer unit lock lever into place. Pour the toner evenly into the toner hopper. Close the front cover.
  • Page 23 9. Center shift adjustment 10. Label attachment There is basically no need to perform the center shift adjustment A. Label attachment because it is made when shipping. If the center should be shifted, adjust in the following procedures. Attach the magnification ratio select label packed together with the Make a copy.

  • Page 24: 5 ] Description On Each Section

    2) Basic operations [5] DESCRIPTIONS OF EACH (Tray paper feed operation) SECTION When the CPFC (Cassette paper feed clutch) turn on, the paper feed roller shaft, the paper feed roller, and the take-up roller rotate in the direction of A. At the same time, the limiter spring moves down the Descriptions are made on the following sections: roller release arm.
  • Page 25 2. Developing section (Details of DV harness connector) 1) General descriptions For bias (1) Two-component developer The developer is composed of toner and carrier. Carrier serves as a medium for attaching toner onto the electrostatic image on the photoconductor drum. By stirring toner and carrier, they are rubbed to be charged positive (+) and negative (–) respectively.
  • Page 26 3) Basic operations (Cassette paper feed) Proccess Main motor When the CPFC (cassette paper feed clutch) is turned on, the paper unit feed roller shaft, the paper feed roller, and the take-up roller rotates in Main drive unit the direction of A, and the roller release arm is moved downward by Stirring roller the limiter spring.
  • Page 27 (1) Original table (2) Copy lamp The original table is fixed. The original is set in the left center position. 100V series: 85V, 275W 200V series: 170V, 310W (3) Mirror This model uses six mirrors. No. 1 mirror is attached to the copy lamp unit, No. 2/3 mirrors are attached to No.
  • Page 28 Parts identification and functions Lens home position sensor Mirror motor Mirror home position sensor Lens No. 4/5 mirror unit AE sensor No. 2/3 mirror unit Reflector drive motor N Copy lamp Copy lamp unit Lens drive wire No. 4/5 mirror unit Lens Lens unit...
  • Page 29 2) Basic operations Mirror base scan speed (Positions of the original, the lens, and the image in each mag- nification ratio) Lens and mirror positions Normal: The distance between the original set on the table glass and are changed to adjust the Copy paper the lens is equal to the distance between the lens and the magnification ratio...
  • Page 30 (Optical system dirt correction) Reference plate (Glass holder) Table glass This model perform dirt correction by changing the copy lamp inten- sity according to the dirt degree in the optical system (the copy lamp unit, No. 1 mirror, No.2 mirror, No.3 mirror) to prevent against remark- able degrading of copy quality.
  • Page 31 4. Copy process This model basic process and structure • The Scorotron method is used to evenly charge the photoconduc- tor surface to the given potential in the charge process. The corona wire regularly used is now replaced with a new corona charge mechanism that employs the 0.1mm thick stainless steel saw teeth plate, in order to suppress ozone generated when the oxide molecule in air is ionized.
  • Page 32 2) Process diagram Original Mirror lens Copy lamp High voltage unit Blank lamp Main corona unit Charging Exposure Discharge lamp Discharging Discharge High voltage unit Toner Development Developer Cleaning blade Cleaning Waste toner collection Separation Manual paper feed Drum upper Paper feed roller Resist roller Paper cassette...
  • Page 33 3) Details of image forming process Step 1 (Main Charging) By negative discharging of the main charger, uniform negative char- ges are applied to the OPC drum surface. The OPC drum surface potential is controlled by the screen grid voltage to maintain the grid voltage at a constant level. •...
  • Page 34 Low intensity in HIgh intensity in Medium intensity the area corre- the area corre- in the area corre- sponding to the sponding to the sponding to the darker density lighter density of medium density portion of the the document portion of the document document Aluminum...
  • Page 35 Step 4 (Transfer) The transfer paper is charged higher than the OPC drum surface potential by strong negative discharge of the transfer charger, making the binding force between the transfer paper and toner stronger than that between the drum and toner, attracting toner to the transfer paper.
  • Page 36 Step 6 (Cleaning) Residual toner on the drum is removed by the cleaning blade. The removed toner is sent to the waste toner container by the waste toner transport screw. Blade Aluminum layer Residual toner OPC drum 1 Main corona unit Step 7 (Discharging) When the OPC drum is exposed to the discharge lamp light, positive 2 Blank lamp...

  • Page 37: Main Control Pwb

    4) Transition of photoconductor surface potential Develop Charge Exposure Transfer Separate Clean -730V Dark area Developing bias voltage -215V Light area Residual potential 5) Photoconductor drum sensitivity correction In this model, fall in sensitivity due to long use of the photoconductor drum is corrected by the copy lamp light intensity to prevent against considerable change in copy quality.
  • Page 38 Process control The grid voltage value where the same density level as the refer- ence level is obtained is displayed by Sim. 44-9 "a". This value is 1 Toner patch images are formed on the photoconductor surface displayed with 50 as the center in the range of 0 ~ 99 in integer under the three process conditions (MC grid bias voltage).
  • Page 39 Waste toner transport The waste toner is passed through waste 5. TRANSPORT/FUSING SECTION toner transport screw 1 and waste toner mechanism: pipe 2 to waste toner bottle 3. 1) General Waste toner bottle 3 is rotated by the This model allows transport of paper of max. A3 (11" x 17") and min. main drive gear via gear 4 to transport A5 (8 1/2"...
  • Page 40 5 Drive system division 7. High voltage section The fuser unit is rotated by the main drive unit. In case of manual rotation of the fuser unit to remove paper jam, however, excessive 1) General loads may be applied to the gears. To prevent against this, the There are three kinds of coronas;...
  • Page 41 (Note for assembly) [6] DISASSEMBLY AND ASSEMBLY 1) There is the 8-pin connector on the back of the rear frame side. When assembling it, carefully insert. The descriptions are divided into the following sections. 2) The belt must be on the paper feed unit gear and the resist roller 1.
  • Page 42 (Note for assembly 2) 1-4. Separation roller When attaching the paper feed section roller ass’y, adjust so that the Remove the paper feed unit and remove the separation roller. paper feed roller clutch and the PS front roller ass’y clutch projection face toward the paper feed side.
  • Page 43 (Note for assembly) Remove the clutch and the gears as shown below. Attach the paper feed roller so that the one-way clutch is on the rear frame side. (Be careful of the direction.) Attach the roller holder as shown below. One-way clutch side (Note for assembly) 1) Attach so that the resist roller clutch projection is on the paper exit...
  • Page 44 2-2. Transport belt Remove two connectors from the unit. Remove the fusing unit. Remove the TC case. Disengage the transport belt drive shaft holder on the TC case side, then disengage the drive shaft on the paper exit side and remove the belt.
  • Page 45 3-2. Heater lamp replacement 3-4. Upper separation pawl replacement Remove the fusing cover fixing screw (1 pc.), and slide the cover Remove the fusing unit, and remove the cover. to the front side to remove. Put the fusing unit so that the paper guide is on the lower side of While pressing the Fasten terminal projection connected to the the fusing unit (the separation pawl is on the upper side).
  • Page 46 3-6. Lower separation pawl replacement 3-7. Thermistor/thermostat removal Remove the fusing unit. Remove the fusing unit. Remove the lower heat roller, after removing the lock panel. Remove the fusing cover, and remove the thermistor/thermostat. Remove three screws and remove the lower separation pawl unit. * Note for assembly •...
  • Page 47 Remove the operation panel, the upper cabinet R, and the right cabinet. Remove the dark box cover upper. Optical adjustment plate Install so that the projected portion of the copy lamp is near the rear Manually move mirror base B. (Within the range where the wire side as shown above.
  • Page 48 B. Mirror base wire removal Rotate the mirror base B counterclockwise to remove. Remove the upper cabinet L, and the left cabinet. Disconnect the connector from the copy lamp unit on the rear frame side and from the No. 2/3 mirror unit. Rotate the No.
  • Page 49 Hook the metal fixture of the mirror base wire on the optical base plate hook. Pass the mirror base wire along the groove outside the double pulley. <Note> At the time, put the No. 2/3 mirror unit on the mirror base positioning plate.
  • Page 50 4) Copy lamp unit installation (Mirror base A If the parallelism of the mirror base B is improper as shown in the figure below (one side of the mirror base B is in contact with the positioning) positioning plate and the other side is not in contact), perform the This adjustment must be performed in the following cases: following procedure.
  • Page 51 Remove the dark box cover upper. Remove the drive springs 4 and 5. Remove the right cabinet. Remove the zooming rack of the roll holder unit. Remember the positions of the lens drive shaft attachment plate (in the directions of A and B) (Inscribe a line). Inscribed line Remove the lens drive shaft attachment plate.
  • Page 52 6) Lens wire replacement Remove the drive shafts 4 and 5. A. Lens wire removal Remove the OR guide L and R, and remove the table glass. * When removing the No. 4/5 mirror unit, remember the positions (scales) of the arrow marks of the drive holder 4 and 5. Zooming rack Remove the dark box cover upper.
  • Page 53 Remove drive spring 4 and 5. Remove the drive wire spring and the wire hook from the lens carriage boss. L drive pulley Lens unit Wire hook Wire SP Remove the E-ring which is fixing the roll holder drive shaft, and remove the roll holder unit.
  • Page 54 2. Procedures Manually turn the zooming can drive gear to fit the zooming cam drive gear hole and No. 4/5 mirror drive unit base hole B. Manually move the lens carriage unit to fit the lens carriage hole with the optical unit frame hole (which is not the home position hole but the reduction side hole).
  • Page 55 Loosen the zooming cam screw, and fit the mark of zooming cam 5. High voltage section drive gear with the mark of No. 4/5 drive shaft. Clean the MC case, and the TC/SC case every 50K copies. Clean the screen grid, the charging plate (saw teeth), and the TC/SC wire every 50K copies, and replace them every 100K copies.
  • Page 56 5-2. Transfer/separation charger (TC/SC) unit Remove the screw and remove the charging plate (saw teeth) ass’y. Open the font cover, open the body up. Push TC/SC unit pawl sections (2 positions) and lift the front side and pull it out. (Cleaning/replacement and note) When attaching the screen grid, be careful not to deform and dirt the screen grid.
  • Page 57 6-2. Waste toner bottle replacement (required when When installing the unit to the body, check that the grounding spring is in contact with the TC/SC case (metal section) on the waste toner full detection/maintenance) rear and the front sides. (Visually check, and push the center of Take out the process unit as shown above, the TC/SC unit to check that it can be moved up and down.) <Note>...
  • Page 58 6-3. Drum (Replace every 60K copies) While pushing waste toner bottle in the direction of and lift it and remove. Remove the process unit from the copier. (Refer to 6-1.) Loosen two blue screws which are fixing the drum, rotate the plate slightly to the right and pull it out.
  • Page 59 6-5. Discharge lamp unit (Clean every 60K copies.) 6-6. Cleaner blade (Replace every 60K copies.) Remove three blue screws which are fixing the process unit Remove the holder from the process unit. (3 blue screws) holder, slide the holder and remove it. Remove the cleaning blade.
  • Page 60 B. DB blade replacement (Replace every 120K copies.) 7. Developing section Remove the old DV blade from the DV cover. (Remove the duplex A. DV side seals F/R replacement (Replace every 120K tape.) copies.) Attach the new DV blade with the pasteboard as shown below. Remove two screws which are connecting the hopper section and (Attach the DV blade to the reference of A and the inscribed line the developing unit, and separate them each other.
  • Page 61 D. Note for toner hopper drive gear (31T) and stirring 8.Operation panel/intermediate cabinet shaft attachment Open the front cabinet. • Be careful of the stirring shafts A and B attachment positions. Remove two screws , two screws , and two harnesses con- Stirring shaft B nected to the operation panel unit.
  • Page 62 <Note> When attaching the cooling fan motor, put the harness sec- Remove the upper cabinet and the rear cabinet. tion and the CFm duct groove section in the same direction, and pass the harness in the groove. Check that the fan center label is on the back when viewed from the rear of the machine.
  • Page 63 9-4. Main PWB unit Remove the ventilation fan motor (2 screws). Remove the rear cabinet upper. Disconnect all the connectors (6 connectors) connected to the main PWB. Remove the main PWB plate (one screw). Remove the main PWB from the plate. (2 screws) Remove the process unit.
  • Page 64 10-2. Take-up roller/paper feed roller 10. Multi paper feed unit Remove the manual feed arm spring, the bearing stopper, and the 10-1. Separation roller E-ring. (At this time, slide the bearing from the guide section in advance.) Remove three screws and remove the paper feed/take-up roller Lift the manual feed stopper, and remove the manual feed shaft ass’y.
  • Page 65 [7] ADJUSTMENTS 1. Developing section 1-1. Developing doctor clearance adjustment Plate D a. If the clearance between the developing doctor and the MAG 0.6 ± 0.03mm roller is improper, the following trouble may occur. • Insufficient coy density MAG roller •...
  • Page 66 (5) Measure the distance from the marking position to the bottom (A) of the developing unit and check that the distance is 17.6mm. If the distance is not as specified above, loosen the MG adjustment plate fixing screw, move the adjustment plate in the arrow directions and perform procedures (3) to (5) again.
  • Page 67 2-2. Note for adjustments 1. Only the exposure balance adjustment, the blank lamp adjust- ment, and the copy lead edge adjustment can be performed individually. For the other adjustments, follow the flowchart below. 1. Mechanical reference position adjustment (without copying) A.
  • Page 68 2-3. Adjustment of each section A. Lens reference position adjustment <Check after adjustment> Be sure to check that the magnification ratio cam is at the home In this model, the reference value according to each lens charac- position as shown in the figure below. teristics must be entered.
  • Page 69 (3) Check to confirm the lens value specified on the lens value label. (4) Insert a screwdriver into hole (P) in the right rear side (paper feed side) of the optical base plate, and adjust the adjustment screw. The scale on the zoom base at section Q in the figure below determines the position of the No.
  • Page 70 (4) Calculate the copy magnification ratio. (9) Adjust the copy magnification ratio according to the flowchart Copy image size shown in (6). × 100% Copy magnification ratio = Original size (10) Make a copy at 50%. (5) Check that the obtained copy magnification ratio is within the (11) Check that the copy magnification ratio is within the specified specified range (100 ±...
  • Page 71 No.4/5 mirror adjustment screw (Copy) Check points 8. 0 9. 0 Perform the focus adjustment in the enlargement mode (200%). (1) Make a copy of the test chart on an A4 or 8 1/2″ × 11″ paper. (2) Check the resolution at the four corners and the center of the copy image.
  • Page 72 E. Horizontal copy magnification ratio adjustment (2) Replace the displayed value with the copy magnification ratio correction rate obtained in (1). a. This adjustment is performed to meet the displayed magnifica- (Input value) = (Previously set value) / (Copy magnification tion ratio with the actual one.
  • Page 73 F. Comparison table of lens values and simulation input values Zoom correction Zoom correction Zoom correction Zoom correction Lens Lens (Enlargement) (Reduction) (Enlargement) (Reduction) display Sim 48-01 display Sim 48-01 Sim 48-01 — % Sim 48-01 — % — Sim 48-01 — % — Sim 48-01 —...
  • Page 74 G. Vertical skew adjustment (4) Loosen the fixing screw of the rear frame side mirror base drive pulley. a. This adjustment is performed when a skew copy is made as When La > Lb, rotate the rear frame side mirror base drive shown below or when a part of the mirror base drive wire or the pulley in the arrow direction A.
  • Page 75 <Adjustment procedure> Adjustment procedure (1) (1) Make an original for adjustment. When La>Lb (Lc<Ld): Rotate to increase the height of the front Draw parallel lines at 10cm from the both edges of an A3 or frame side of the No. 4/5 mirror base unit. 11"...
  • Page 76 (Example) When La=12mm and Lb=9mm, shift the paper exit side (5) Remove the document reference plate and the right upper side mirror base B rail upward by 1.5mm. cabinet, and remove the document table glass. Document • When Lc > Ld, shift the mirror base B rail downward by half of reference plate the difference of Lc –...
  • Page 77 (3) Remove the original reference plate and the right upper side (The value displayed before pressing the % key is stored in the cabinet, and remove the original table glass. memory by pressing the zoom up key.) (4) Move the exposure plates a, b, c, and d in arrows directions A Display section: and B to adjust exposure.
  • Page 78 (8) Put a scale and an A3 (11" × 17") white paper on the original (4) Measure the distance between the copy paper lead edge and the copy image lead edge in each copy. Obtain RRC-A and table as shown below. RRC-B values from the following formulas.
  • Page 79 (11) Make a normal copy and check that the image loss and the [Adjustment procedure] void amount are within the specified range. (1) Put a scale on the original table. (Specified range) C → P → 0/◊ → P → 5 → Image loss: 0 ∼...
  • Page 80 2-4. Copy density adjustment (2) Drum sensitivity setting (1) Execute Sim. 26-07, and check that the top digit of the 9-digit A. When the copy density adjustment is required: drum number printed on the flange in front of the drum is dis- played on the copy quantity display.
  • Page 81 (2) Make a copy. (4) Test chart setting Check that "6" of the test chart is slightly displayed. (1) Put several sheets of white paper (Sharp specified paper) of about 120mm wide and about 420mm long to the center refer- ence.
  • Page 82 (2) Perform the same procedures of (2) through (4) in "1) Normal (4) Make a copy. mode exposure adjustment." Check that "3" of the test chart is slightly copied. 3) Photo mode exposure adjustment (1) Press the exposure select key to set to the photo mode. The photo mode lamp is lighted and exposure "1"...
  • Page 83 Test chart comparison table UKOG-0162FCZZ DENSITY No. UKOG-0089CSZZ DENSITY No. KODAK GRAY SCALE SHARP CORPORATION MADE IN JAPAN Copy density adjustment Developing bias output voltage adjustment 200V (Manual exposure 1) Execution of Sim. 8-01 Manual exposure copy density adjustment Execution of Sim. 46-01...
  • Page 84 Item Content Automatic exposure copy density adjustment Enter "0" with the 10 digit key pad. Normal mode Not copied Slightly copied TSM mode Enter "0" with the 10 digit key pad. AE1 (TS) AE5 (TS) Not copied Slightly copied 2-5. Process section adjustment B.
  • Page 85 5 Attach the process unit to the copier. (Attach so that the electrode A. Use of special measurement tools sheet lead wire extends from the developing unit side.) • Tool: UKOGE0043CS01 (Digital multi meter) 6 Clean the transfer charger wire, and attach the transfer/separation •...
  • Page 86 –480 –480 –630 –650 * Drum marking number 1 = SHARP Drum marking number 2 = Mitsubishi * This model performs the process correction according to the num- ber of drum mark(s). With Sim 8, the grid voltage after correction can be checked.
  • Page 87 2. Purpose [8] SIMULATION The purpose of the simulations feature is to improve serviceability in repairs and adjustments. Since the mechanical adjustments can be performed electrically, the 1. Outline above purpose is achieved with low costs. This model is equipped with the simulations feature which allows the following operations with the keys on the operation panel: 3.
  • Page 88 4. List of simulations Main Main Content Content code code code code Mirror scanning Maintenance counter display Optical system sensor check Maintenance preset counter display Lens operation check JAM memory display Lens operation aging Total JAM counter display ADF aging Total counter display ADF sensor check DV counter display...
  • Page 89 5. Details of simulations Simulation input procedure: C → ë → 0 → ë Main code Sub code Content Mirror operation check When the print button is pressed, the mirror is scanned at a speed corresponding to the currently set copy magnification ratio.
  • Page 90 Main code Sub code Content Sorer sensor state display The ADF sensor ON/OFF states can be monitored with the LED on the operation panel. When the third digit of the multi display is “0” the following display is made. Sensor name Operation panel LED Entrance sensor Jam lamp (ê)
  • Page 91 Main code Sub code Content PSPS operation check The separation pawl is turned on/off 30 times in the following sequence. PSPS 0.5s 0.5s Warm-up time display and aging After execution of the simulation, warm-up is started, and the swarm-up time is displayed every second on the copy quantity display.
  • Page 92 Main code Sub code Content Maintenance cycle setting Used to set the lighting cycle of the maintenance lamp (è). When this simulation is executed, the currently set maintenance cycle is displayed on the copy quantity display. After setting the number, press the print button to memory the value. Set value Maintenance cycle ←...
  • Page 93 Main code Sub code Content Drive system check Used to turn on the main motor, the developing bias, and the discharge lamp for 3 min. The input value of the toner density is displayed on the second digit of the copy quantity display during the main motor is rotating.
  • Page 94 Main code Sub code Content AE original density setting Used to set the original density. When this simulation is executed, the currently set original density is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it. Set value Original density ←...
  • Page 95 Main code Sub code Content Paper sensor state display Used to monitor the ON/OFF state of the sensors in the main body with the LED on the operation panel. Sensor name Operation panel LED Manual feed tray selection lamp Drum position jam lamp ( ) DPPD1 Resist position jam lamp ( ) Paper exit position jam lamp ( )
  • Page 96 Main code Sub code Content Grid voltage correction operation test Used to perform the grid voltage correction and to display the measure data on the copy quantity display. When this simulation is executed, the grid voltage correction is automatically performed. The image density sensor is read when -30V, 0V, and +30V are applied to the latest patch forming grid voltage.
  • Page 97 Main code Sub code Content Grid voltage correction, optical dirt correction, drum membrane decrease correction data display Used to display each correction data of the grid voltage correction, the optical dirt correction, and the drum membrane decrease correction on the copy quantity display. Since there are two or more display items, the third digit is used to make distinction between the light reception level and the original judgment level, and the lower two digits are used to display the data.
  • Page 98 Main code Sub code Content Drum voltage correction drum surface data, patch data display Used to display the drum surface data and the patch data after execution of the grid voltage after simulation 44-5, 6 or during normal operation is displayed on the copy quantity display. Since there are two or more display items, the third digit is used to make distinction between the light reception level and the original judgment level, and the lower two digits are used to display the data.
  • Page 99 Main code Sub code Content Exposure level adjustment Used to set the copy density (copy lamp output voltage) in each exposure mode. When this simulation is executed, warm-up is started and the currently set manual (ME) upper limit value is displayed on the copy quantity display.
  • Page 100 Main code Sub code Content Paper transport direction magnification ratio adjustment Used to set the horizontal (paper transport direction) magnification ratio. When this simulation is executed, warm-up is started and the currently set mirror speed correction value is displayed on the copy quantity display. When warm-up is completed, the ready lamp is lighted.
  • Page 101 Main code Sub code Content Resist amount adjustment Used to set the warp amount of paper in the resist section. When this simulation is executed, warm-up is started and the currently set tray resist amount is displayed on the copy quantity display. After completion of warm-up, the ready lamp is lighted.
  • Page 102 6. User simulation This simulation allows to change and set the following setting which has been set when shipping from the factory. (1) Functions which can be set and canceled by the user simulation Function name Function and setting content Factory setting •...
  • Page 103 (3) User simulation code table Sim. Selection code: Program Factory setting code Set content Auto clear passing time setting [0]: Cancel [1]: 30 sec [2]: 60 sec [3]: 90 sec [4]: 120 sec Pre-heat mode setting and passing time [0]: Cancel setting [1]: 1 min [2]: 15 min...
  • Page 104 [9] SELF DIAGNOSTICS 1. Summary/purpose This model has the self diag function for the following purposes: 1) When a trouble occurs in the machine, the machine detects the trouble and displays the trouble content on the copy quantity dis- play to alert the customer and the serviceman. 2) When any abnormality is detected, the power supply line is cut off immediately for safety and to protect the machine from damage.
  • Page 105 Trouble code Sub code Content Condition • Mirror feed trouble When initializing, MHPS is not turned off within 1.5 sec from starting feeding of the mirror. • When copying, MHPS is not turned off within 0.5 sec from starting feeding of the mirror. •...
  • Page 106 Trouble code Sub code Content Condition • Image density sensor trouble When the light emitting quantity of the image density sensor is increased to the maximum level, the input value does not reach 3.75V. • When the light emitting quantity of the image density sensor is decreased to the minimum level, the input value does not fall below 4.5V.
  • Page 107 [10] SERVICING AT MEMORY TROUBLE AND MAIN CONTROL PWB RE- PLACEMENT 1. General 2. Purpose The EEPROM in the control PWB and the EEPROM are storing The purpose is to reset the memory data to operate the machine various set values, adjustment values, and counter values. properly.
  • Page 108 Is the toner Use Sim 25-2 to set the density reference value Is the adjustment Make a copy and adjust the toner density reference value recorded? value of contact pressur contact pressure between between the main body resist the main body resist roller roller and the copy paper and the copy paper recorded?
  • Page 109 4. Set value recording sheet Contents Purpose/kind Section Main code Sub code Set value Description Adjustment value of contact pressure of the paper on the main Paper feed section body resist roller Copy paper lead edge void amount adjustment (Resist adjustment A) Copy paper lead edge void amount adjustment (Resist adjustment B) Copy paper lead edge void amount adjustment...
  • Page 110 5. Memory simulation list Contents Purpose/kind Section Ref. page Main Default Description code code value Paper feed Adjustment value of contact pressure of the paper on the main 8-12 section body resist roller Copy paper lead edge void amount adjustment 8-11 (Resist adjustment A) Copy paper lead edge void amount adjustment...

  • Page 111: Maintenance

    [11] MAINTENANCE 1. Maintenance cycle and maintenance items Maintenance of this model should be performed at every 60K. <Content> = Lubricate, F = Clean, v = Adjust, b = Replace/attach, ê = Shift position = Check (Clean, replace, or adjust if necessary.) * The toner consumption and the waste toner bottle replacement cycle are those when the reference chart is used.

  • Page 112: Electrical Section

    [12] ELECTRICAL SECTION 1. System block diagram 12 – 1...
  • Page 113 System operation when the power is turned on: Power ON Initial setting Memory transfer Trouble Warm up Heater lampp ON Mirror initial operation Lens initial operation End of warm up Racing Process contorol Toner density control End of racing RPL ON PSW ON RPL OFF Copy cycle...
  • Page 114 BL-DATA BL-DATA /RESET D0-D7 A0-A2 VREF VREF PROCON /CS2 AD0-1 PCG MCG AEG0, AEG1 MMPWM DATA0 FWS, RTH 12 – 3...
  • Page 115 (2) CPU (IC6) SC3041K12F General The CPU controls the loads of the main body and controls the system in synchronization with data transmission and reception through the optional controllers and serial data communication line. Features The SC3041K12F is a high performance single-chip micro computer which is integrated with the necessary peripheral devices as well as the main core of 32-bit H8/300H CPU.
  • Page 116 Internal block diagram Port 3 Port 4 Address bus Address bus (Upper) Address bus (Lower) PS3/A19 PS2/A18 PS1/A17 EXTAL PS0/A16 XTAL Φ HS/300H CPU STBY RES0 P27/A15 Interruption P26/A14 controller P25/A13 P66/LWR P24/A12 P65/HWR contorller P23/A11 P64/RD (DMAC) P22/A10 P63/AS P21/A9 ROM* P62/BACK...
  • Page 117 CPU SC3041K12F (IC1) pin signal Pin No. Port Signal name IN/OUT Specifications Power (+5V) CVFMPWM Fan motor (PWM output) signal Serial clock signal for EEPROM MMPWM Main motor (PWM output) signal Serial data for EEPROM /MIR-A Mirror base motor drive signal -A MIR-A Mirror base motor drive signal A /MIR-B...
  • Page 118 Pin No. Port Signal name IN/OUT Specifications AD15 Address signal AD16 Address signal LHPS Lens home position signal (LOW at 100%) Transport pass sensor signal (HIGH when paper is sensed.) Drum marking sensor signal Power (GND) BACK Back signal (fixed to H) BREQ Break signal (fixed to H) WAIT...
  • Page 119 (3) Detector circuit of sensor signal The LS151 selects one signal of D0 ∼ D7 according to the combina- SEL B tion of SEL A ∼ C signals (H, L) and outputs it to Y. Selection of D0 ∼ D7 for SEL A ∼ C is made as shown in the table CSD1 below.
  • Page 120 (5) Heater lamp control circuit +5V1 47KJ IC20D 2SC945 OP-LATCH NJM2901 CPU 17PIN 3.9KJ 5.6KJ 0.22µ F 0.22µ F 10KJ +5V2 Vref 8.2KJ 4.7KF IC20C MA700 NJM2901 680J DSM101 47KF 22000PF 8 ~ 20 2SA673 +5V2 IC10 IC15 47KJ Heat roller 2.7KJ TD62504 +5V2...
  • Page 121 [When the heat roller surface temperature is lower than the set (7) Stepping motor drive circuit temperature] General a. Since the thermistor pin voltage is higher then the set level, the The driver circuit drives the lens drive motor, the mirror base drive output signal HL from the CPU is driven to LOW.
  • Page 122 (8) AE (Auto Exposure) sensor circuit The AE sensor circuit is composed of the AE sensor PWB; which is composed of the photo diode, the I-V convertor circuit, and the amplifier circuit; and the amplifier circuit on the control PWB. +24V 100KJ 0.1µ...
  • Page 123 Operation • When "td" (= 30msec) passes after the voltage reaches 4.25V by turning on the power, the output is drive to HIGH. "td" is set by the external capacitor (C106). Block diagram Power 5µA reference Output 1.25V Delay capacity 4.25V 0.65V Output not constant...
  • Page 124 (12) EnergyStar circuit description The EnergyStar circuit composition saves power consumption when When the machine is left un-operated with the power ON, the main the user leaves the machine with the power ON. PWB connector HL signal level becomes a high impedance to turn off Normally in a copy mode or in the standby mode, the main PWB the AC PWV relay (RY201), stopping power supply to the power connector HL signal is HIGH (5V) and the AC PWB relay (TY201) is...
  • Page 125 © COPYRIGHT 1997 BY SHARP CORPORATION All rights reserved. Printed in Japan. No part of this publication may be reproduced, stored in a retrieval system, or transmitted. In any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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