Read Sharp AL-840 (serv.man5) Service Manual online
f. Drive section
No.
Parts
Note
Code
Signal name
Name
Type
Function/operation
1
MM
Main motor
Stepping motor
(+24V)
(+24V)
Drives the paper feed section, the paper
transport section, the fusing section, and
the image process section.
transport section, the fusing section, and
the image process section.
2
Paper feed section drive
gear
gear
Transmits the main motor power to the
paper feed section.
paper feed section.
3
Imaging process, fusing
section drive gear
section drive gear
Transmits the main motor power to the
imaging process section and the fusing
section.
imaging process section and the fusing
section.
g. Printer section
No.
Parts
MODEL
Note
Name
Type
Function/operation
1
ICU PWB
Converts print data sent from the host
into bit image.
into bit image.
Printer models only
2
Printer interface
connector
connector
IEEE1284 parallel interface
Connects with the host computer
(parallel interface)(IEEE1284)
(parallel interface)(IEEE1284)
Allows connection with two
host computer(s). Printer
models only
host computer(s). Printer
models only
2)
1)
3)
1)
2)
5 – 11
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