- HP Printer User Manual

ENWW Conveyance section 29
Finisher unit explanation
3 M701 DRV A, A (finisher CB to M701)
Pulse signal to drive/control the
Phase A of M701
4 M701 DRV B, B
(finisher CB to M701)
Pulse signal to drive/control the
Phase B of M701
M712 (gate drive) control
M712 (gate drive) performs the paper
conveyance path switching between the
sub-tray, main tray or stacker section. The
finisher CB (finisher control board) controls
the operation of M712.
The related signal is PS716 (gate HP).
1 Operation
M712 (gate drive) is activated by the finisher
operation signal from the MFP, selecting one
of the three positions depending on the
paper exit destinations: the sub-tray (home
position), main tray or stacker. However,
when the current paper exit destination is the
sub-tray, M712 is not activated (it is already
in the home position).
After the operation, M712 returns to its home
position based on PS716 (gate HP).
2 Signals
a Finisher CB input signals
PS716 IN (PS716 to finisher CB)
Signal relating to the gate home
position
[H]: HP
[L]: Non-HP
b Finisher CB output signals
1 M712 DRV A, A
(finisher CB to
M712)
Pulse signal to drive/control the
Phase A of M712
2 M712 DRV B, B (finisher CB to
M712)
Pulse signal to drive/control the
Phase B of M712
SD705 (bypass gate) control
SD705 (bypass gate) only operates for small
size papers (A4, B5 or 8.5 by 11). The
finisher CB (finisher control board) controls
SD705.
The related signal is PS704 (finisher
entrance).
1 Operation
a First set:
While the sheets of the first set are
being processed, SD705 (bypass gate)
does not operate.
24V
24V
M712 DRV A
M712 DRV A
M712 DRV B
M712 DRV B
5V
PS716 IN
SGND
PS716
FNS CBMAIN BODY
M712
24V
SD705 DRV
5V
PS704 IN
GND
PS704
SD705
FNS CBMAIN BODY