- HP Printer User Manual

ENWW Main tray section 37
Finisher unit explanation
However, when some delivered sheets
are removed, the main tray is raised and
the counter reset PS is activated. This
resets the current sheet counter. This
enables limitless delivery.
The tray lower limit PS (PS703) detects
the bottom of the main tray. The number
of delivered sheets on the main tray is
not counted by the software counter
during non-continuous copying. PS703
is used for the limitation of the number.
M703 (tray up/down) control
M703 (tray up/down) raises or lowers the
main tray by a normal or reverse rotation.
The finisher CB (finisher control board)
controls the operation of M703.
The related signals are PS702 (tray upper
limit), PS703 (tray lower limit), PS707
(stapler exit upper limit), PS715 (counter
reset), and PS706 (main tray paper exit).
1 Operation
a Non-sort, sort, and group modes
According to the finisher operation
signal from the MFP, M703 (tray
up/down) elevates the main tray until
PS702 (tray upper limit) responds (on).
When PS706 (main tray paper exit)
detects the paper, M703 lowers the tray.
When the signal from PS702 has
changed to off, and a predefined time
period has elapsed, M703 raises the
tray again. M703 stops with PS702
signal on.
b Staple mode
When M707 (paper exit roller) has
started rotating and a predefined time
period has elapsed, M703 (tray
up/down) lowers the main tray. The
rotation of M703 is reversed to raise the
main tray when PS706 (main tray paper
exit) detects the trailing edge of the
paper stack on the tray. M703 stops
when the signal from PS707 (stapler
paper exit upper limit) changes from on
to off.
2 Signals
a Finisher CB input signals
1 PS702 IN (PS702 to finisher CB)
Signal relating to the main tray upper
limit position
[L]: Non-upper limit position
[H]: Upper limit position
2 PS703 IN (PS703 to finisher CB)
Signal relating to the main tray lower
limit position
[L]: Non-lower limit position
[H]: Lower limit position
3 PS707 IN (PS707 to finisher CB)
Signal relating to the main tray upper
limit position in the staple mode
[L]: Upper limit position
[H]: Non-upper limit position
M703 DRV_F
M703 DRV_R
5V
PS703 IN
GND
PS703
5V
PS702 IN
GND
PS702
5V
PS707 IN
GND
PS707
5V
PS715 IN
GND
PS715
5V
PS706 IN
GND
PS706
FNS CBMAIN BODY
M703