User manual

96.05.15.10.25
Color LaserWriter 12/600 PS Illustrated Parts 4–21
Descriptions The table below describes the major circuit boards used in the Color
LaserWriter 12/600 PS and the optional sheet feeder.
No. Name/Function Availability
1 I/O controller board P/N 661-0133
2 I/O interconnect board
Relays signals between the DC controller and the I/O
controller boards.
P/N 922-1319
3 DC controller board
Controls printer functions (laser/scanner control,
image stabilization control, fuser temperature control,
I/O control, and various other functions)
P/N 661-0898
4 Mechanical controller board
Controls the various loads and various detection
functions (motors, developing unit, fuser assembly,
transfer drum peripherals, pickup/high voltage/sheet
feeder, etc.).
P/N 661-0899
5 High-voltage power supply
Applies voltage in sequential correspondence with
primary charging, developing, transfer, discharging,
attraction, and separation.
P/N 661-0905
6 Separation high-voltage transfer board
Outputs separation voltage to the fuser assembly and
the separation discharge assembly.
P/N 922-1610
7 Cassette pickup assembly board
Controls the pickup system loads.
P/N 922-1311
8 Cassette size-sensing board
Detects the cassette size.
P/N 922-1623
9 Ejection-sensing board
Detects the pulling of the toner release handle.
P/N 922-1623
10 Sheet feeder controller board P/N 922-1355