Basic Sequence; At Power-On - Canon iR5055 Series Service Manual

Chapter 7
*Toner is deposited. The machine also executes black exposure using its laser unit.

7.3 Basic Sequence

7.3.1 At Power-On

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
Main motor (M2)
Drum motor (M1)
Laser activation
Pre-exposure LED
Primary charging
Grid bias
Developing clutch (CL4)
Developing bias (AC)
Developing bias (DC)
Dust-collecting roller bias (DC)
Pre-transfer charging bias (AC)
Pre-transfer charging bias (DC)
Transfer charging
Separation charging bias (AC)
Separation charging bias (DC)
Separation claw bias (AC)
The sequence of operation is as follows:
[1] The machine executes copier potential control.
[2] The machine executes printer potential control.
7-2
step 1 pre-exposure
step 2 primary charging (positive DC)
step 3 laser exposure*
step 4 development (AC + positive DC)
step 5 transfer (negative DC)
step 6 separation (AC + positive DC)
step 7 fixing
step 8 drum cleaning
Static Image Formation Block
2. Primary charging
1. Pre-exposure
8. Drum charging
Delivery 7. Fixing
flow of paper
direction of drum rotation
Main power Control panel power switch ON
switch ON
SLEEP WMUP
T-7-2
3. Laser exposure
4. Development
5. Transfer
Registration
6. Separation
Deck/cassette
F-7-2
Fixing assembly temperature 195 C
WMUPR
[1] [2]
F-7-3
Manual feed tray
Start key ON
200 C
STBY INTR
0015-4476