Canon imageRUNNER C1335 Series Service Manual page 131

2
Technical Explanation > Pickup / Feed System > Controls > Reverse/Duplex Assembly
● Duplex standby control
If it is possible to secure necessary paper interval by estimating the paper interval with the
preceding paper when the Duplex Sensor (PS01) is ON, the paper is re-picked up to the pre-
registration.
If the necessary paper interval cannot be secured, the paper stays at the duplex standby
position (22.3 mm downstream from the Pre-registration Roller). After recalculated standby
time has passed, re-pickup is executed.
Delivery Sensor (PS12)
22.3 mm
2 Technical Explanation > Pickup / Feed System > Controls > Reverse/Duplex Assembly
Duplex Feed
Lower Roller
M08
SL02
M06
Duplex Feed
Upper Roller
Duplex Sensor
(PS01)
Duplex standby position
F-2-136
● Duplex Pre-standby control
When the succeeding paper has not finished the registration control (non-stop registration
control and stop registration control), the paper stops before the nip of the Duplex Feed
Lower Roller (15 mm downstream from the Duplex Feed Lower Roller).
When the speed changes to the process speed after the succeeding paper finishes the
registration control, the Reverse Motor (M08) is rotated to start the paper feed.
Pre-registration Sensor
(PS04)
Pre-registration Roller
2-100
M08
SL02
M06
Duplex Feed
Lower Roller
Duplex Sensor
(PS01)
F-2-137
2-100