Canon imagePRESS 1135 Series Service Manual page 171

2
Technology > Pickup / Feed System > Active Registration Area Control / Function > Leading Edge Registration Control
Step 3
The registration roller goes back to the original position.
Timing: After the registration roller makes a full-turn and the registration roller HP sensor
completes detection.
Post-registration sensor
Registration shift HP sensor
Shift
Registration roller
Registration roller
HP sensor
2 Technology > Pickup / Feed System > Active Registration Area Control / Function > Leading Edge Registration Control
■ Leading Edge Registration Control
<Overview of control>
The machine calculates the paper feed time from the image reference sensor to the post-
registration sensor, and controls the leading edge registration by accelerating or decelerating
<Overhead view>
the registration roller. Because the image formation is already started based on the image
reference sensor on the pre-registration area and image position is not detected after the
image formation is started.
<Leading edge registration control step>
Step1
The machine calculates the paper feed time from the image reference sensor on the pre-
registration area to the post-registration sensor, and estimates the feed time until the
secondary transfer.
Timing: When the leading edge of the paper reaches the post-registration sensor.
Post-registration
sensor
Paper reach time
<Lateral view>
F-2-170
<Overhead view>
<Lateral view>
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F-2-171
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