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TB OPERATIONS AND TIMING
2.
Inputs to and Outputs from the ADF
a.
Controller PCB
Inputs to and Outputs from the ADF
Controller PCB (1/1)
ADF controller PCB
ADFC
When ADF is opened, '1'.
Delivery sensor
PDPI
When original is detected, '1'.
(when light-blocking plate is at sensor)
Registration paper
6
sensor
PDP2 *
When original is detected, '0'.
(when Jight-blocking plate is at sensor)
+5V
Original placement
sensor
" |
PDP3 *
When original is detected, '0'.
(when light-blocking plate is at sensor)
Belt motor
See p. 3-80.
Pick-up motor
Serial communication
*Negative logic.
Figure 3-703
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