Canon 7086 Series Service Manual - page 269
Chapter 7
7-23
F-7-31
The following is an outline of the sequence of operations used by the machine to supply toner:
F-7-32
The following shows the sequence of operations used to supply toner from the buffer to the developing assembly:
TS-SNS
0V
5V
J511B
J504B
BUFFER_WARNING
0V
5V
BUFFER_NG
0V
5V
DEVELOP_TS
0V
5V
When the absence of toner is detected, '0'.
DC controller PCB
1
2
3
4
5
6
9
10
11
15
1
15
16
17
TS1
TS3
TS2
TS4
At TS4 time-out,
indicates a message
to the effect that a
new supply of toner
must be made available.
Printing may continue.
The machine remains
ready to operate.
At TS1 time-out,
indicates a message
to the effect that a
new supply of toner
must be added.
The machine stops
operation.
A new supply of toner
has been added
(i.e., the bottle has
been replaced with a
full bottle).
The machine resumes
operation, supplying
toner as it makes prints.
As many as
about 1000 prints
may be made