- HP Printer User Manual

44 Finisher unit explanation ENWW
M718 (folding stopper) control (Q3634A only)
M718 (folding stopper) moves the booklet
stopper. The link mechanism releases the
flat-stapling stopper when the booklet
stopper comes down.
The finisher CB (finisher control board)
controls the operation of M718 through the
RB (relay board).
The signals (or sensors) related to this
component include PS723 (folding stopper
HP), PS725 (folding paper exit) and PS729
(folding full PS).
1 Operation
a Folding mode
The finisher operation signal from the
MFP lets M718 (folding stopper) drive to
lower the booklet stopper. The booklet
stopper comes down to the appropriate
alignment position that fits the size of
the paper to be handled.
When the last sheet has been aligned,
M718 rotates to lower it to the folding
position.
When the folding has been completed
and the trailing edge of the set has been
detected by PS725 (folding paper exit),
M718 is activated. The booklet stopper
is raised to the paper-size specific
position. The machine waits for the
sheet of the next set.
b Stitch-and-fold mode
The finisher operation signal from the
MFP lets M718 (folding stopper) drive to
lower the booklet stopper. The booklet
stopper comes down to the appropriate
stitch-and-fold position that fits the size
of the paper.
When the stapling has been
completed,M718 rotates to lower the
paper to the folding position.
When the folding has been completed
and the trailing edge of the set has been
detected by PS725 (folding paper exit),
M718 is activated. The booklet stopper
is raised to the paper-size specific
position. The machine waits for the
sheet of the next set.
c Tri-folding mode
The finisher operation signal from the
MFP lets M718 (folding stopper) drive to
lower the booklet stopper. The booklet
PS725 IN
PS723 IN
5V
PS723 IN
GND
5V
PS725 IN
GND
PS723
PS725
FNS CB
MAIN BODY
24V
24V
M718 DRV A
M718 DRV A
M718 DRV B
M718 DRV B
M718
24V
M718 CLK
M718 RESET
M718 F/R
M718 CONT
RB