2 - P - 3
ADU PAPER EXIT/CONVEYANCE SECTION
[4] Selector Guide
The selector guide is driven by SD152 (ADU gate).
SD152 drives the CB (control board).
Related signals are PS157 (ADU gate) and PS158 (ADU
conveyance door open/close detection).
1. Operation
a. Selector guide control
When the face side copy is made, SD152 goes ON after the
specified time from when MC3 (2nd paper feed) goes ON,
causing the selector guide to open. As a result, the paper
exited from the fixing unit is conveyed to the ADU paper
exit/conveyance section.
SD152 goes OFF after the specified time from when PS25
(paper exit) detects the trailing edge of the paper and goes
ON, then the selector guide closes.
b. Paper exit/conveyance control
The paper exit roller and conveyance roller are driven by
M1 (main), and the paper exited from the fixing unit is
conveyed to the ADU paper exit/conveyance section.
2. Signals
a. Input signals
(1) PS157 (PS157 → CB)
Signal which detects the passage of paper through the
entrance of the stacker.
This signal becomes [L] when paper is detected.
SD152 DRIVE
PS157
SGND
PS158
5VDC
83-A7
57-A7
57-B7
57-A6
57-B5
24VDC 78-3
CB
561-1
561-2
561-3
PS158
SD152
560-1
560-2
560-3
PS157
DCPS
(2) PS158 (PS158 → CB)
Signal which detects the open/closed state of the ADU
conveyance door
[H]: ADU conveyance door open
[L]: ADU conveyance door closed
b. Output signals
(1) SD152 DRIVE (CB → SD152)
SD152 ON/OFF control signal
[H]: SD152 OFF
[L]: SD152 ON
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