4-1
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).
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)
Companion
parts name
Companion
material
Reference tightening
torque
N·m
kgf·cm
Self-tapping screw M4X12
(attaching pressure system, etc.)
ICU base A
PBT(G30)
1.7±0.3
17.3±3
ICU base B
PBT(G30)
1.7±0.3
17.3±3
Main ink tank
PP
1.33±0.22
13.6±2.2
Self-tapping screw M4X16
(attaching solenoid valve)
ICU base B
PBT(G30)
1.7±0.3
17.3±3
Self-tapping screw M4X12
(attaching pump cover)
P side plate
ADC12
(aluminum)
1.7±0.3
17.3±3
Self-tapping screw B M3X10
(attaching ICU joint)
ICU base A
PBT(G30)
0.5±0.1
5.1±1
Ink circulating area
Driving part area
Makeup reservoir
Unit door
Ink filter
Main ink tank
Exhaust duct
Ink reservoir
Pump unit
Summary of Contents for IJ RX2
Page 1: ...Service Manual HITACHI Printer Model RX2 Revision Feb 2014 Version A ...
Page 13: ...1 8 2 External views Rear side 1 2 2 Main body internal ...
Page 14: ...1 9 1 2 3 Print head ...
Page 101: ...3 26 Circuit diagram of EZJ127A ...
Page 102: ...3 27 Circuit diagram of EZJ127B ...
Page 116: ...3 41 Circuit diagram of EZJ129 ...
Page 164: ...4 40 5 Reset the time of the R air filter to 0 on the Parts usage time management screen ...
Page 247: ...7 Attached Drawing 7 1 Circulation System Diagram Circulation System Diagram 7 1 ...
Page 249: ...7 3 7 2 2 Electrical Connection Diagram RX2 B Basic model 7 3 ...