- HP Printer User Manual

28 Finisher unit explanation ENWW
M701 (finisher conveyance)
control
M701 (finisher conveyance) operation is
performed by the 24V DC motor and
controlled by the finisher CB (finisher control
board).
The related signals is PS704 (finisher
entrance).
1 Operation
a Interlock control
Finisher paper conveyance drive control
is initiated by the ON signal from the
MFP's START button. If MS701
(interlock) is off at this time, however,
the finisher transmits an error signal to
the MFP's PRCB and does not begin
this control.
b M701 (finisher conveyance) control
When the position of the START button
is on, and the paper exit speed is high,
ON from PS37 (MFP paper exit) sets
the speed to low, and ON from PS704
(finisher entrance) sets the speed to
high after a predefined time period. For
the main tray paper exit operation,
PS704 detects the end of the paper,
and, after a predefined time period, the
speed mode switches to medium to
match the paper exit speed of the
finisher. Then, after a predefined time,
the mode returns to the high speed to
prepare for the next conveyance of
paper.
2 Signals
a Input signals
1 SRXD (MFP to finisher CB)
Serial data line transmits the
operating status of the MFP's CB to
the finisher CB.
2 SCTS (MFP to finisher CB)
Acknowledgment signal, sent from
the MFP to the finisher, allows the
finisher to send data to the MFP.
3 24V-IN (MS701 to finisher CB)
Interlock signal:
[H]: Front cover is closed.
[L]: Front cover is open.
4 PS704 IN (PS704 to finisher CB)
Signal indicating whether the paper
passes through the entrance. The
front and rear ends of the paper are
detected.
[H]: paper does not exists.
[L]: paper exists.
b Output signals
1 SRTS (finisher CB to MFP)
Acknowledgment signal, sent from
the finisher to the MFP, allows the
MFP to send data to the finisher.
2 STXD (finisher CB to MFP)
Serial data line transmits the
operating status of the finisher to the
MFP's CB.
24V
24V
DRV A
DRV A
DRV B
DRV B
5V
PS704 IN
GND
PS704
FNS CBMAIN BODY
M701
24VDC IN
5V
SGND
PGND
PGND
SRXD
SGND
SRTS
STXD
SGND
SCTS
24V-IN
5V
SGND
PGND
PGND
FGND
MTXD
SGND
MCTS
MRXD
SGND
MRTS