Canon 1730, Service Manual

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Adjustment > Image Position Adjustment > Image Position Adjustment for ADF > Adjustment of Image Magnification Factor for Sub Scanning Section
Adjustment > Image Position Adjustment > Image Position Adjustment for ADF > Adjustment of Image Magnification Factor for Sub Scanning Section
3) Loosen the four screws securing the right hinge, and then move the hinge to adjust the
squareness.
Fixing screws of right hinge
4) After completion of the adjustment, tighten the screws you loosened in step 3).
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Adjustment of Image Magnification Factor for Sub Scanning
Section
1) Create a test sheet, place it on the ADF, and make a copy of it.
2) Compare the feed-directional length of the image on the test sheet with that of the image
on the copied paper. If the difference between them is not within specification, make an
adjustment in the service mode.
• Standard value
A4-size paper: 277±1mm
LTR-size paper: 259±1mm
3) Service mode: SCAN > FEEDER > ADJUST > LA-SPEED
• When the length of the image on the copied paper is shorter: Increase the setting
value. (Reduce the original stream read speed.)
• When the length of the image on the copied paper is longer: Reduce the setting value.
(Increase the original stream read speed.)