Maintenance Of Controlling Part; Construction Of Controlling Part - Hitachi IJ PH Service Manual

3. Maintenance of controlling part

3.1 Construction of controlling part

The controlling part is mainly composed of a controller part of performing the display
and the data management, and an engine part of performing the printing control and
the circulation system control.
When opening the cover of the controller part and the engine part, be sure to cut
off the power supply. The unit has such a part that high voltage is applied.
When performing the adjustment in a state where the cover is opened, be fully
careful about an electric shock.
Controller part
[Engine part (cover-opening state)]
EZJ106 board
EZJ95 board
Caution against electric shock
Cover fixing screws
(Two locations)
Engine part
EZJ93 board
3-1
Electrical component cover
Multiple power supply
High voltage
power supply