Side Registration Control - Canon imageRUNNER ADVANCE 6075 Series Service Manual

2
Technology > Pickup / Feed System > Duplex Unit > Side Registration Control

■ Side Registration Control

In the case of printing the 2nd side of the 2-sided print, side registration displacement level is
measured to adjust the write start timing and correct side registration.
<Execution timing>
When the paper is stopped at the duplex standby position
<Control description>
Side Registration Sensor (PS31) detects side registration.
The side registration control executes detection of the home position as well as operation and
detection of the standby position.
1.Home position operation
Side Registration Unit is moved to the home position.
Home position: at 13mm from the nominal dimension of A4 size
Timing
- When the main power is turned ON/when the Front Cover is closed/at the recovery from
JAM process/at job completion
2.Standby position operation
The unit is moved to the side registration standby position (10 mm front) corresponding the
paper size.
3. Detection operation
The Side Registration Motor (M16) is driven until Side Registration Sensor(PS31) is turned
OFF to detect side registration displacement level from the travel distance.
4. The displacement level measured for side registration correction is converted into pixels to
adjust the laser write start timing according to the displaced direction.
The write start timing is pushed forward when the paper is displaced to the front.
The write start timing is pushed back when the paper is displaced to the rear.
2 Technology > Pickup / Feed System > Duplex Unit > Side Registration Control
Duplex Outlet Roller
Side Registration Motor(M16)
Side Registration
Sensor(PS31)
Front
Standby point
Detecting point
About 10 mm
Paper
2-142
Duplex Left Roller
Paper
F-2-187
2-142