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e. When the drum has made 10 revolutions, the discharge lamp light intensity
f.
g. The discharge lamp turns OFF at the same time the drum motor stops.
3. Power stacker unit (optional) ready.
(Power paper stacker unit, vacuum fan motor, main unit feed motor, and tractor
drive)
The main unit feed motor runs at the low speed. If any of the fan-fold paper
remains when the tractor is driven, it is detected by paper output sensor 0.
4. Paper fan-folding unit stopped.
If any of the fan-fold paper remains, the vacuum fan motor and main unit feed
motor also stop.
5. Transfer unit drive verification.
The transfer unit first ascends and then descends.
6. Tractor reversal.
If the fan-fold paper remains, it is parked, and then the printer goes into the
on-line idling state (10).
7. Gate solenoid ON (500 msec).
This operation is performed to open the cut-sheet paper output path.
8. Cut-sheet paper transport system ON.
This operation is performed to make sure that no cut-sheet paper remains in the
transport path.
9. Overall transport system OFF.
10. Printer switched to on-line idling state.
However, if an error occurs, the printer switches to the off-line idling state (in
which the system waits for the error to be cleared).
The previous operations are performed according to the following timing diagrams.
Principles of Operation
lowers and the main charger and developing bias turn OFF to stop the
magroll and sleeve motors.
The pre-charger and cleaning bias simultaneously turn OFF when the drum
makes another two revolutions.
5–61
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