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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 ink with the flush bottle from the holes shown in the
following figure until it overflows and leave for about 10 minutes.
4 Operate the target solenoid valve repeatedly about 10 times on the
“Solenoid Valve/Pump Test” screen. If an operation sound can be
confirmed, the repair work is completed. If not, replace the solenoid
valve.
4.12.2 Repairing method for the supply pump
1 Remove the tube connecting block of the ink reservoir and connect the
hand pump.
2 Operate the pump, MV2, and MV6 in this order on the “Solenoid
Valve/Pump Test” screen.
3 Apply pressure with the hand pump.
4 If the makeup ink of the hand pump flows to the pipe M, the repair work is
completed. If the supply pump cannot be repaired in about 10 minutes,
replace the pump unit.
Pipe
Pipe[M]
Hand pump
Hand pump specifications
Part name : Nozzle cleaning assembly
Parts No :451000
Hole (4 positions)
Summary of Contents for IJ PH
Page 1: ...Service Manual HITACHI Printer Model PH Revision Aug 2011 Version First edition ...
Page 2: ... Revision of PH service manual Revision Chapter Revised Page ...
Page 13: ...1 2 2 Main body internal PH D 1 8 ...
Page 80: ...3 25 3 25 Circuit diagram of EZJ95 ...
Page 201: ...7 1 7 Attached Drawing 7 1 Circulation System Diagram ...
Page 202: ...7 2 7 2 Electrical Connection Diagram ...
Page 205: ...7 5 7 4 Dimensions around charge electrode and deflection electrode Nozzle diameter 65 um ...