Canon iR C3380 series Service Manual page 120

Chapter 2
* Rotate the adjustment screw clockwise -> Gap A becomes wider
* Rotate the adjustment screw counterclockwise -> Gap A becomes narrower
3) Perform the step 1) 'Left Hinge Height Adjustment'. If there is any displacement, perform adjustment again.
2. Main Unit Power ON
1) Connect the power supply cable to the power plug.
2) Turn ON the main power switch.
3. Tray Width Adjustment
The result of this adjustment is stored in the reader controller PCB. When installing DADF in the field, this adjustment should be performed to input the adjustment
result in the reader unit. For DADF, this adjustment is not performed in installing in the field. If this adjustment is not performed, the following problem occurs.
- Wrong detection of the document size
For the tray width adjustment, perform 'AB system adjustment' or 'INCH system adjustment'.
<AB System Adjustment>
1) Enter the service mode
2) Select the screen in the following order to display the adjustment screen.
1. FEEDER
2. FUNCTION
3. TRY-A4 (highlighted)
3) Align the tray side guide against the 'A4/A3' indication.
4) Press OK key, register the width of 'A4'.
5) Press TRY-A5R (highlighted).
6) Align the tray side guide against the 'A5R' indication.
7) Press OK key, register the width of 'A5R'.
8) Press the reset key twice to release the service mode.
<INCH System Adjustment>
1) Enter the service mode.
2) Select the screen in the following order to display the adjustment screen.
1. FEEDER
2. FUNCTION
3. TRY-LTR (highlighted)
3) Align the tray side guide against the 'LTR/11X17' indication.
4) Press OK key, register the width of LTR.
5) Press TRY-LTRR key (highlighted).
6) Align the tray side guide against the 'STMT/LTRR/LGL' indication.
7) Press OK key, register the width of LTRR.
8) Press the reset key twice to release the service mode.
4. Right-Angle Adjustment
Here, the original feed direction of the machine is adjusted in relation to the optical system of the iR machine.
1) Prepare a test chart as shown using A4 or LTR copy paper.
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