Read Sharp AL-840 (serv.man5) Service Manual online
(5) PWB
No.
Parts
MODEL
Note
Name
Function/operation
1
Power PWB
Outputs DC power. Drives the heater lamp.
The voltage specification differs
depending on the destination.
depending on the destination.
2
ICU PWB
Converts print data set from the host and
converts it into bit image data and send to the
MCU.
converts it into bit image data and send to the
MCU.
AL-840
Allows connection with two host
computers. Printer models only
computers. Printer models only
3
Scanner lamp drive
PWB
PWB
Controls light quantity of the scanner lamp.
4
MCU (PCU) PWB
Controls the image process section and the
engine section.
engine section.
5
High voltage power
PWB
PWB
Outputs the high voltage for the image process
section. Controls the main motor.
section. Controls the main motor.
6
Operation control PWB
Displays the value information. Outputs the key
operation signal.
operation signal.
2)
1)
3)
4)
5)
6)
5 – 17
Click on the first or last page to see other AL-840 (serv.man5) service manuals if exist.