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d.Folding/delivery
The paper pushing plate pushes in the center of the paper stack to feed it
toward the paper fold rollers.
delivery rollers deliver the paper stack to the bind tray.
Bind delivery rollers
Fig.F02-502-05
C.Paper Feed System
(1)Outline
The paper feed system feeds a stack of sheets (coming from the finisher)
to the position where the center of the paper stack (stitching position) is
aligned to the stapler's staple, allowing the next step (stitching and
folding) to be performed.
When sheets of paper have been stacked and aligned on the processing
tray, the paddle motor (FPM) rotates in the reverse direction, causing the
swing guide to descend. As the swing guide descends, the paper stack
is sandwiched between the upper and lower stack delivery rollers. The
delivery motor (FAM) rotates in the reverse direction, feeding the paper
stack toward the saddle unit. When the leading edge of the paper stack
reaches the folding position sensor (FPS), the finisher controller PCB
drives the delivery motor a specified number of motor pulses to stop the
center of the paper stack (stitching position) at the stapler's staple
position. Before the paper stack passes through the stack feed rollers,
the feed motor (FFM) is driven to rotate the stack feed roller (lower) so
that the leading edge of the paper stack is not bent.
Stack delivery roller (upper)
Paper stack
Stack delivery roller
(lower)
Fig.F02-503-01
Then, the paper fold rollers and bind
Paper fold rollers
Fold position sensor
Stack feed roller (lower)
AR-FN7/PN1 OPERATIONAL DESCRIPTION 4-12
D.Stack Feed System
(1)Outline
The stack feed system feeds the stitched paper stack to the folding
position.
When stitching is complete, the feed motor (FFM) rotates, causing the
stack feed roller (upper) to descend. The paper stack is sandwiched
between the stack feed rollers. Then, the bind clutch (FFC) is turned ON
to rotate the feed motor (FFM) in the forward direction, thus feeding the
paper stack to the folding position. The feed amount is equivalent to the
number of pulses used to drive the feed motor (FFM) until the paper
stack reaches the folding position.
Stack feed roller (lower)
Fig.F02-504-01
E.Fold/Delivery System
(1)Outline
The paper fold mechanism consists of a guide plate, paper fold rollers,
and a paper pushing plate.
The guide plate, paper fold rollers, and paper pushing plate are driven by
the staple/fold motor (FFSM).
combination of gears and cams. Motor operation is monitored by the
staple/fold motor lock sensor (FE).
Until the paper stack reaches the folding position, the guide plate covers
the paper fold rollers to act as a paper path through which a paper stack
is fed to the saddle unit and to prevent a paper stack from touching the
rollers.
A folding home position sensor (FHPS) is provided to detect the
positions of the paper fold rollers and paper pushing plate.
The paper stack folded in two by the paper fold rollers is delivered by
bind delivery rollers.
The bind delivery rollers are also driven by the staple/fold motor (FFSM).
A bind tray sensor (FES) is provided on the bind tray to detect presence/
absence of a paper stack; however, it is not used to detect a jam.
Stack feed roller (upper)
The drive force is transferred with a
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