& Finishers
(B803/B805/
D373/D374/
D636/D637)
2.1.3 SUMMARY OF ELECTRICAL COMPONENTS
Here is a general summary of all the electrical components of the B804/B805 finishers.
 In the table below a number that appears in bold text (M8, etc.) denotes a component that
is on the 2000/3000 Sheet Finisher B804 only.
No. Component Function
Boards (PCB)
PCB1 Main Board The main board that controls the finisher
PCB2 Booklet Stapler Board
A separate board that controls booklet finishing.
PCB3 Punch Unit Board The board that controls the punch unit.
Motors
M1
Finisher Entrance
Motor
Drives 1) the finisher entrance rollers, 2) and the punch
waste transport belt of the punch unit.
M2 Upper Transport Motor
Drives the paper feed rollers that feed paper 1) to the
proof tray, 2) straight-through to the upper tray, 3) the
pre-stack tray entrance roller.
M3 Lower Transport Motor
Drives paper feed rollers forward and reverse in the
pre-stack tray for the switchback, and drives the other
rollers in the lower transport area.
M4
Upper/Proof Tray Exit
Motor
Drives 1) proof tray exit rollers, 2) extension and
retraction of the stacking sponge roller, 3) upper tray
exit rollers.
M5 Feed Out Belt Motor
Drives the feed out belt that moves the stapled stacks
out of the stapling tray after stapling.
M6
Corner Stapler
Movement Motor
Moves the corner stapler horizontally on a steel rod to
position the stapler at the stapling position at 1) the
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