Service manual

ADU
2-N-11
2 UNIT EXPLANATION
[5] Paper Reverse and Exit Control
The paper fed from the fixing unit is fed, through the
paper reverse and conveyance section, to the exit tray
or ADU. The paper reverse gate is driven by SD2
(paper reverse gate). The paper reverse and exit roller
is driven by M5 (paper reverse/exit), and the paper exit
roller is driven by M10 (paper exit).
Related signals are PS58 (ADU paper reverse), PS57
(paper reverse), PS61(paper exit), PS2 (fixing exit),
and PS3 (fixing jam). When the front right or left door
of this machine opens or closes, MS1 (interlock 1) or
MS2 (interlock 2) operates to interrupt the DC power
supply to the motors, stopping M5 and M10.
1. Operation
a. Paper reverse gate control
The paper reverse gate is driven by SD2. Nor-
mally, the paper reverse gate is opened and
guides the paper to the reversal unit. SD2 is
turned ON to close the gate when ejecting paper
straight.
b. M5 (paper reverse/exit) control
(1) Straight paper exit
When paper ejected straight, the paper reverse
gate is closed with SD2 turned ON. Accordingly,
paper is ejected straight at low speed rotation.
(2) Paper reverse and exit
a) The paper fed to the paper reverse and exit
section is fed to the conveyance path in the
paper reverse and exit section through the
paper reverse gate opened by the OFF oper-
ation of SD2.
PRCB
DCPS1
DCPS2
ADUSDB
24VDC
24VDC
M5 DRIVE A
M5 DRIVE A
M5 DRIVE B
M5 DRIVE B
24VDC
SD2 CONT
5VDC
PS8
SGND
5VDC
PS61
SGND
5VDC
SGND
24VDC
PGND
PS61
PS2
PS3
M5
SD2
PS8
PS57
24VDC
24VDC
M10 DRIVE A
M10 DRIVE A
M10 DRIVE B
M10 DRIVE B
M10
PS2
PS3
PS57
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