Basic Sequence; At Power-On (1); At Power-On (2) - Canon iR C3200 Series Service Manual

Chapter 9

9.3 Basic Sequence

9.3.1 At Power-On (1)

If the main power switch is turned on while the surface temperature of the fixing roller is less than 100°C
(e.g., first time in the morning or after a long period of no use),
Characteristics
- the same control timing is used for the Y, M, C, and Bk drum units.
- the machine takes about 300 to 360 sec before it enters PSTBY.
- the machine executes image stabilization control in the following order while it is warming up:
discharge current level control
ATVC control
ATR control
SALT-Dmax control
image position control
SALT-Dhalf control
Drum/ITB
motor (M1)
Exposure (Y)
Charging (DC)
bias (Y)
Charging (AC)
bias (Y)
Development
motor (Y)
Developing (DC)
bias (Y)
Developing (AC)
bias (Y)
Upstream auxiliary (DC)
bias (Y)
Upstream auxiliary (AC)
bias (Y)
Downstream auxiliary (DC)
bias (Y)
Primary transfer
bias (Y)
Secondary
transfer bias

9.3.2 At Power-On (2)

If the main power switch is turned on while the surface temperature of the fixing roller is 100°C or more
(i.e., after it returns from jam recovery*, after it has been forced off and then on, or after its front cover has been
opened and then closed while an imaged is made).
Characteristics
- the same control timing is used for the Y, M, C, and Bk drum units.
- the machine takes about 80 sec before it enters PSTBY.
- the machine executes image stabilization in the following order while it is warming up:
discharge current level control
ATVC control
9-8
Main power
switch ON
Approx. 120sec
Scraping off toner
by auxiliary brush
Scraping off toner
by auxiliary brush
• Start-up sequence of the drum unit
WMUPR
Image stabilization
control (for details,
see appropriate sections)
Cleaning by second-
ary transfer roller
(Y; with surface temperature of fixing roller at 100 or more).
F-9-6
PSTBY
CNTR
Approx. 120sec
0000-4479
0000-4480