Canon PC920 Service Manual page 298

3) Turn on the machine, and place the test sheet prepared in step 1) on the original tray.
4) Press the Copy Start key to make a copy.
5) Check to make sure that the distance L3 on the copy image indicated is 10 ±2.5 mm (standard)
or less.
COPYRIGHT © 1999 CANON INC.
Figure 11-250
L3
Copy image
Figure 11-251
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
L3=10 ± 2.5mm
11-33