Detecting The Level Of Toner And Controlling The Supply Of Toner - Canon Image Reader-A1 iR5000i Service Manual

4.4 Detecting the Level of Toner and Controlling the Supply of
Toner
The following component parts are associated with the toner supply system:
J103A
1
7
8
9
1
9
10
11
The following signals are used:
[1] developing assembly toner level detection signal; when the absence of toner is detected,
'0'.
[2] hopper toner level detection signal; when the absence of toner is detected, '0'.
COPYRIGHT © 2001 CANON INC.
5V
DTEP [1]
0V
J103B
5V
TEP [2]
0V
2000 2000 2000 2000
CHAPTER 4 IMAGE FORMATION SYSTEM
F04-404-01
CANON iR5000i/iR6000i REV.0 JUNE 2001
TS2
4-41 P