DETAILS
SM 25 B836
Booklet
Finisher
B836
2.2.4 ELECTRICAL COMPONENT SUMMARY
Here is a general summary of all the electrical components.
Motors
No. Name Description
M1 Entrance Motor Controls the rollers that feed paper into the booklet finisher.
M2 Upper Transport
Motor
Controls the rollers that feed paper out of the booklet finisher.
M3 Clamp Roller
Retraction Motor
Drives a large cam that alternately clamps and unclamps the clamp
retraction roller, the idle roller of the clamp roller pair. When these
rollers are clamped, they are part of the paper feed path and feed
the stack toward the bottom fence of the fold unit. When the idle
roller is retracted, the stacks falls a very short distance (3 mm) onto
the fold unit bottom fence below. These rollers remain unclamped
while the bottom fence positions the stack for folding and while the
stack is folded by the fold rollers.
M4 Feed Out Belt Motor Drives the feed out belt that moves the stapled stacks out of the
stapling tray after stapling.
M5 Fold Plate Motor Drives the fold plate that pushes the center of the stack into the nip
of the fold rollers to start the fold.
M6 Fold Roller Motor Rotates forward and drives the fold rollers that fold the stack and
feed it out of the fold unit, reverses to feed the fold once more into
the fold unit, and then rotates forward again to feed the fold out of
the fold unit.
M7 Fold Unit Bottom
Fence Lift Motor
Raises the bottom fence and stops when the center of the vertical
stack is opposite the edge of the horizontal fold blade. The distance
for raising the blade is prescribed as one-half the size of the paper
selected for the job. For large paper, (A3, B4) the bottom fence first
lowers the stack 10 mm below the fold position, and then raises it to
the fold position.
M8 Jogger Fence Motor Drives the jogger fences in the stapling tray to jog both sides of the
stack before stapling.
M9 Lower Transport
Motor
Drives paper feed rollers forward and reverse in the stack tray for
the switchback, and drives the other rollers in the lower transport
area.
M10 Positioning Roller
Motor
Drives the positioning roller in the stapling tray.
M11 Stack Junction Gate
Motor
Controls the junction gate at the entrance of the booklet finisher
PCBs
No. Name Description
PCB1 Booklet Stapler Board A separate board that controls booklet finishing.
PCB2 Main Board The main board that controls the finisher
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