HP (Hewlett-Packard) 9055 Printer User Manual


 
106 MFP unit explanation ENWW
rotating in the forward direction at a
low speed, proceeding to feed the
next sheet of paper.
2 ADF conveyance
The operation performed from the
moment PS30 (fuser exit) turns off at
detection of the trailing edge of paper
to the moment M8 (reverse/exit) and
M9 (ADU reverse) start rotating in the
forward direction at a high speed, is
the same as reverse/exit.
When PS46 (reverse/exit) turns off at
detection of the trailing edge of paper,
M8 starts rotating in the forward
direction at a high speed, proceeding
to feed the next sheet of paper.
After a lapse of the specified time
from detection of the trailing edge of
paper by PS46, M9 starts rotating in
the opposite direction at a low speed,
feeding paper to the ADU
conveyance section. When PS45
(ADU paper reverse) detects the
trailing edge of paper and
consequently turns off, M9 starts
rotating in the forward direction at a
low speed, proceeding to feed the
next sheet of paper.
d M7 (paper exit) control
M7 (paper exit) turns on when the
START button is pressed. The OFF
timing is different between paper
straight exit and reverse/exit.
1 Paper straight exit
The paper fed from the fuser unit by
the exit roller is ejected by the MFP
exit roller driven by M7 (paper exit).
M7 is always rotating at a constant
speed and it is turned off when PS37
(paper exit) turns off at detection of
the trailing edge of the last sheet of
paper.
2 Paper reverse/exit
The paper fed from the reverse/exit
section in ADU with it reversed, is
ejected by the exit conveyance roller
and MFP exit roller which are driven
by M7 (paper exit) rotating at a high
speed. After a lapse of the specified
time from turning off of PS42 (paper
reverse) at detection of the trailing
edge of paper, M7 (paper exit) starts
rotating at a low speed to even up the
edges of paper in the exit tray. When
PS37 (paper exit) is turned off at
detection of the trailing edge of paper,
M7 starts rotating at a high speed
again, proceeding to eject the next
sheet of paper. When PS37 detects
the trailing edge of the last sheet of
paper, M7 (paper exit) stops. If
finisher is provided, M7 is always
rotating at a high speed.
2 Signals
a Input signals
1 FIXEXIT_PS (PS30 to PRCB)
Detection signal of paper passage at
fuser unit exit
[L]: Detected
[H]: Not detected
2 DECUR_PS (PS42 to ADUDB)
Reverse/exit gate open/close
detection signal
[L]: Gate is open.
[H]: Gate is closed.
3 ADU_REV (PS45 to ADUDB)
ADU reverse section paper passage
detection signal
[L]: Detected
[H]: Not detected
4 REV_PS (PS46 to ADUDB)
ADU gate open/close detection signal
[L]: Gate is open.
[H]: Gate is closed.