Basics Sequence Of Operations - Canon iR7086 Series Service Manual

Chapter 7
Control signal
Control signal
0 V
11
POTENTIAL_SIG
10
POTENTIAL_ON
9
24 VU
8
J502A
Drum surface potential measurement value

7.4.2 Basics Sequence of Operations

iR7105 / iR7095 / iR7086
The following shows the basic sequence of operations and timing of operations associated with the machine's control system:
Performs a series of charging operations to stabilize the drum potential.
Drum motor(M0)
Primary charging bias(DC)
Grid bias
Laser
Developing bias(AC)
Developing bias(DC)
7-4
Primary charging wire
Grid wire
DC bias
DC bias
Developing cylinder
DC bias
When '1', potential sensor goes on
193
WMUP
Potential stabilization sequence
Optimum grid
bias determined
Fixed value
F-7-4
Uses the potential control mechanism that is used
when the main power switch is turned on.
WMUPR
Potential control
Optimum laser
output determined
F-7-5
Laser light
Potential control
J3
1
2
3
4
198
STBY
Potential control for
transparency mode
Optimum laser
output determined
0010-8040