Canon imageRUNNER ADVANCE C5051 Series Service Manual page 439

4
Parts Replacement and Cleaning > Option > Removing the ADF Unit > Height Adjustment
CAUTION:
After installation, check/adjust the following items.
■ Height Adjustment
1. Check the height.
1) Close the DADF.
2) Check that the 2 height adjustment rolls on the front/rear left come contact with the stream
reading glass.
NOTE:
Turning ON the LED helps the check operation.
(Lv.1) COPIER > FUNCTION > MISC-R > SCANLAMP
Height adjustment roll
Height adjustment roll
3) If not, execute the height adjustment.
If you cannot check it visually, check it by the following method.
4 Parts Replacement and Cleaning > Option > Removing the ADF Unit > Height Adjustment
Stream reading glass
F-4-374
a. Checking the height of front height adjustment roll.
1) Push the paper (plain paper) to the protrusion of the stream reading glass and set it in the
position where the sheet of the stream reading glass is fully covered.
Reading position
Protrusion
Sheet
CAUTION:
Do not set it in the position where the original read position is covered by the paper.
2) Close the DADF.
3) Pull out the paper in the direction of the arrow and check that there is resistance.
4) If there is no resistance, execute the height adjustment.
4-173
Protrusion Reading position
Paper Sheet
F-4-375
F-4-376
4-173