2
2
2-10
2-10
Technology > Controls (DADF) > Document Feeding/Delivery > Basic Operation
Technology > Controls (DADF) > Document Feeding/Delivery > Basic Operation
Reversal/feed 1
When the trailing edge of the fed document moves past the delivery reversal sensor (SR3),
the pickup/feed motor stops. Immediately after this, the pickup/feed motor starts turning in the
reverse direction to feed the document to the registration roller, then it stops. At this time, the
pressurization solenoid (SL2) turns on to release the delivery reversal roller.
Delivery reversal sensor
M1
S
L
2
M1
S
L
2
Reversal/feed 2
The pickup/feed motor turns to feed the document to the reading wait point and stops.
Thus, the document has been reversed. Next, the document is picked up again and its
reverse side is read, turning off the pressurization solenoid. After this, the
document is reversed again, fed, and then delivered.
S
L
2
S
L
2
M1
CL2
Reading wait position
Read roller 1
M1
Delivery reversal
roller
Registration roller
F-2-17
F-2-18
Document Feeding/Delivery
■
Basic Operation
After completion of stream reading on the document glass, the document is delivered to the
document delivery unit as discussed below.
Document feed/delivery
After moving past the reading position, the document is fed by the read roller 2 and delivery
reversal roller driven by the pickup/feed motor (M1) which is turning in the reverse direction.
The delivery reversal roller is normally pressurized; the Shift solenoid (SL2) turns on only
when the document is reversed for duplex printing.
S
L
2
S
L
2
M1
M1
Delivery reversal
roller
Reading position
F-2-19
Содержание DADF-AG1
Страница 4: ...Blank Page ...
Страница 7: ...Safety Precautions Notes Before it Works Serving Points to Note at Cleaning ...
Страница 9: ...1 1 Product Outline Product Outline Features DADF Specifications DADF Names of Parts DADF ...
Страница 11: ...2 2 Technology Technology Basic Configuration DADF Controls DADF Work of service DADF ...
Страница 25: ...3 3 Periodic Servicing Periodic Servicing List of Work for Scheduled Servicing ...
Страница 47: ...5 5 Adjustment Adjustment Overview DADF Adjustment Method DADF ...
Страница 65: ...Appendix Service Tools DADF Signal Name List DADF General Circuit Diagram DADF ...