At Power-On (2) - Canon imagerunner C5180 Service Manual

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
image position correction
*If the surface temperature of the fixing roller is less than 100°C after jam recovery, the machine uses the
sequence it uses at power-on (1).
Start-up sequence of the drum unit (Y; with surface temperature of fixing roller at 100˚C or more).
Main power
switch ON
1
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
1 :
2 :
WMUPR
Approx. 30sec
Approx. 10sec
Scraping off toner
by auxiliary brush
Scraping off toner
by auxiliary brush
F-9-7
CNTR
Approx. 40sec
Image stabilization
control (for details, see
appropriate sections)
Cleaning by second-
ary transfer roller
iR C5180 iR C4580/2880 (230V): 0sec
Chapter 9
PSTBY
9-11