Advertisement
4. Maintenance of Circulation System
4.1 General Structure of Circulation System
4.1.1 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).
Driving part area
Ink circulating area
Unit door
Ink reservoir
Caution:
Since the circulation unit is made of plastic, tightening the screws with excessive
torque will break the unit. See the table below for reference torques:
Part name (used location)
Self-tapping screw M4X12
(attaching pressure system, etc.)
Self-tapping screw M4X16
(attaching solenoid valve)
Self-tapping screw M4X12
(attaching pump cover)
Self-tapping screw B M3X10
(attaching ICU joint)
Self-tapping screw 3X8
(attaching door lock body)
Pump unit
Main ink tank
Pair
Pats name
ICU base A PBT(G30)
ICU base B PBT(G30)
Main tank
ICU base B PBT(G30)
P side
plate
ICU base A PBT(G30)
Door lock
body
4-1
Exhaust duct
Ink filter
Pair
Reference tightening
quality of
the material
N･m
1.7±0.3
1.7±0.3
PP
1.33±0.22
1.7±0.3
ADC12
1.7±0.3
(aluminum)
0.5±0.1
POM
0.75〜1.04 7.6〜10.6
Makeup ink reservoir
torque
kgf･cm
17.3±3
17.3±3
13.6±2.2
17.3±3
17.3±3
5.1±1
Advertisement
