Canon Color imageRUNNER C4580, Service Manual

Page: 251 / 851

Chapter 9
9-10
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.
T-9-16
- 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
F-9-6
iRC5180 iRC4580 iRC4080
100V 240sec 300sec 300sec
120V 240sec 270sec 270sec
230V 240sec 240sec 240sec
1 : iR C5180 iR C4580/2880 (230V) 0sec
2 :
3 :
Main power
switch ON
WMUPR
CNTR
Approx. 27 to 120sec
Approx. 10sec
Approx. 80sec
1
2
PSTBY
Start-up sequence of the drum unit (Y; with surface temperature of fixing roller Less than 100 ).
Drum/ITB
motor (M1)
Exposure (Y)
Charging (DC)
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
Charging (AC)
bias (Y)
Cleaning by second-
ary transfer roller
Scraping off toner
by auxiliary brush
Scraping off toner
by auxiliary brush
Image stabilization
control (for details,
see appropriate sections)
Approx. 80sec