Cassette 3/4 - Canon ImageRunner iR8500 Series Service Manual

In the case of cassette 3/4, the resistance of the variable resistor operating in conjunction with the movement of the lifter drive shaft is used to find out the
level of paper.
Related Service Mode
COPIER> ADJUST> CST-ADJ> C3-LVOL
COPIER> ADJUST> CST-ADJ> C3-HVOL
COPIER> ADJUST> CST-ADJ> C4-LVOL
COPIER> ADJUST> CST-ADJ> C4-HVOL

9.4.4 Cassette 3/4

iR105i/iR105+ / iR9070 / iR85+ / iR8070
1. The length of paper is detected by two photointerrupers (each cassette).
2. The width of paper is detected by a slide volume.
Paper width detecting VR
Paper length sensor unit
Length guide
DC controller PCB
Paper level (much)
Paper level (little)
F-9-26
T-9-16
Reading when 50 sheets exit in the cassette 3
Reading when 275 sheets exist in the cassette 3
Reading when 50 sheets exist in the cassette 4
Reading when 275 sheets exist in the cassette 4
Record the above readings on the service label.
Width guide (rear)
Width guide (front)
F-9-27
Variable
resistor
Variable
resistor
Cassette
Chapter 9
0007-0263
9-23