Canon imagePRESS 1135 Series Service Manual page 151

2
Technology > Pickup / Feed System > Pick-up Area Control/Function > Air Pickup Control
■ Air Pickup Control
In the pickup assembly, there are 2 types of airflow used to improve performance for paper
separation.
• Floatation airflow
The floatation airflow is generated by 3 air floatation fans and passes through the air duct,
and is finally blown from the floatation nozzle to the paper for making the paper floated.
The air pickup heater can warm the air as required.
• Separation airflow
The separation airflow is generated by 2 air separation fans and passes through the air
duct, and finally blown from the separation nozzle to the paper in order to separate only the
top sheet.
In the case of large size paper, the paper may not be separated throughout the trail edge
even if the air is blown to the paper's lead edge.
In addition to the 2 side air floatation fans in the deck assembly for improving the floating
ability, the 4 claws are used to restrict the floatation of paper at both sides (left and right) and
help the airflow to the rear end.
The trail edge guide plate holds the paper's trail edge from both the horizontal direction and
the upper direction in order to prevent an escape of paper.
After turning ON the deck pickup solenoid, the suction shutter is opened and the paper is
attracted to the suction belt by the suction airflow from the paper suction fan.
2 Technology > Pickup / Feed System > Pick-up Area Control/Function > Air Pickup Control
Paper suction fan
Air floatation fan
Air pickup heater
Air separation fan
Paper
Trail edge guide plate
2-103
Deck pickup solenoid
Suction shutter
Suction belt
Air duct
Claw
Side air floatation fan
Claw
Side air floatation fan
2-103
F-2-137