Canon GP335 Service Manual page 242

CHAPTER 8 PAPER DECK
3. Detecting the Level of Paper in the Deck
The deck uses the deck paper supply position sensor (PS107), deck paper level sensor (PS108),
and deck paper sensor (PS102) to find out an approximate level of paper inside its compartment for
indication on the copier's control panel. Table 8-101 shows the combinations used to identify the
levels of copy paper and the indications on the copier's control panel for the levels.
Paper level (approx.)
1750 to 3500 sheets
500 to 1750 sheets
1 to 500 sheets
0 sheet
1: The light-blocking plate is over the sensor.
0: The light-blocking plate is not over the sensor.
8-8
PS102 PS107
1 1
1 1
1 0
0 0
Table 8-101
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
PS108
Control panel indication
1
0
0
0