Canon iR5570 Series, Service Manual

Page: 287 / 684

Chapter 8
8-23
F-8-25
8.6.4 Outline of Paper Level Detection
0009-3176
The machine indicates the amount of paper inside the deck and the cassette in terms of 4 levels (including absence of paper) on its control panel:
T-8-17
8.6.5 Paper Level Detection Operation (right/left deck)
0009-3173
The machine uses 2 sensors to check the position of the deck bottom plate, and checks the level of paper based on the combination of sensor states (on/off).
The machine uses a special sensor to check the presence/absence of paper.
F-8-26
T-8-18
3 bars 100% to about 50% of capacity
2 bars about 50% to about 10% of capacity
1 bar 10% or less of capacity
no bar no paper
Right deck Left deck
Paper level [1] sensor
(PS47) [2] sensor
(PS48) sensor
(PS7) [1] sensor
(PS49) [2] sensor
(PS50) sensor
(PS11)
100% to about 50% ON ON ON ON ON ON
about 50% to about
10% OFF ON ON OFF ON ON
about 10% or less OFF OFF ON OFF OFF ON
no paper OFF OFF OFF OFF OFF OFF
Paper sensor
Paper detecting lever
Lifter
Paper level
(100% to
about 50%)
Paper level
(about 50%
to about 10%)
Paper level
(about 10%
or less)
[1]
[2] [2] [2]
[1] [1]