Canon PC920 Service Manual page 309

CHAPTER 11 TROUBLESHOOTING
4) Turn VR103 on the DC controller PCB fully clockwise.
5) Place a newspaper on the copyboard, and close the copyboard cover.
6) Turn VR102 so that the display indicates 'A3' to 'Ad'.
7) Remove the newspaper from the copyboard, and place five sheets of copy paper in its place;
then, close the copyboard cover.
8) Turn VR103 on the DC controller PCB so that the display will indicate '52' to '5c'.
11-44
J130
J114
J107 J103
VR103VR102
VR103
Figure 11-266
J130
J114
J107 J103
VR103VR102
VR102
Figure 11-267
J130 J114
J103
J107
VR103VR102
VR103
Figure 11-268
COPYRIGHT © 1999 CANON INC.
J102
VR104 VR105 VR106
VR107
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J104
J105
J109
J102
VR104VR105 VR106
VR107
J106
J104
J105
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J102
VR104 VR105 VR106
VR107
J106
J104
J105 J109
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)