Print Head Replacement Procedure - Hitachi IJ PH Service Manual

4.10 Print Head Replacement Procedure

1 Turn off the power supply.
2 Open the operation panel and remove the fixing screws (2 positions).
Remove the board cover.
Operation panel
3 Remove the print head and the connectors (6 positions).
Excitation signal wire
EZJ106 board: CN5
Charged signal wire
(EZJ106 board: CN3)
Cover switch, etc.
(EZJ106 board: CN7)
APH signal wire
(EZJ106 board: CN2)
4 Remove the piping connections (4 positions) with the print head.
(Loosen the tube lock and pull out the tube.)
"Caution": Put wiping paper at the end of the tube to provide for an ink drip.
Makeup ink line
(Pipe signal: R)
Fixing screw
Clamp
Circulation line
(Pipe signal: J)
4-23
Board cover
High-voltage wire
FG wire
(Grounding)
Collection line
(Pipe signal: A)
Supply line
(Pipe signal: E)