Image Formation Process; Basic Sequence; Basic Sequence Of Operation - Canon iR2030 Series Service Manual
Ir2030/2025/2022/2018 series
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Also See for iR2030 Series:
- Service manual (348 pages) ,
- Portable manual (122 pages) ,
- User manual (76 pages)
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6.2 Image Formation Process
6.2.1 Image Formation Process
iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018i
The image formation system of this machine consist of a primary charging roller, a drum unit integrated with a drum cleaner, a toner bottle, a developing assembly,
a transfer charging roller, and so on.
The image formation process of this machine is composed of the following five blocks (7 steps):
[1] Electrostatic latent image formation block
Step 1: Primary charging (AC & Minus DC)
Step 2: Laser exposure
[2] Developing block
Step 3: Developing (AC & Minus DC bias)
[3] Transfer block
Step 4: Transfer (Plus DC)
Step 5: Separation (Minus DC)
[4] Fixing block
Step 6: Fixing (Minus DC bias)
[5] Drum cleaning block
Step 7: Drum cleaning
6.3 Basic Sequence
6.3.1 Basic Sequence of Operation
iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018i
The basic sequence of operation of this machine is explained below.
For more details, refer to the explanation of various types of bias control.
- At power-on (when the door is opened/closed)
The main motor starts rotating after completion of the error check.
To prevent fogging of the drum, the developing DC bias voltage is held higher than usual during application of the developing AC bias voltage.
4. Fixing block
6. Fixing
5. Separation
3. Transfer block
4. Transfer
Registration
Manual feed pickup
Cassette pickup
Power ON
or
Door open/close
Main motor
(M204)
Scanner motor
(M203)
Primary charging
AC bias
Primary charging
DC bias
Developing
AC bias
Developing
DC bias
Transfer bias
Static eliminator
bias
Fixing film bias
Delivery
5. Drum cleaning block
7. Drum cleaning
1. Primary charging
2. Laser beam exposure
3. Development
2. Developing block
Rotational direction of
photosensitive drum
Paper flow
F-6-2
WAIT
Cleaning bias
F-6-3
1. Electrostatic latent
image formation block
STBY
Chapter 6
0017-4330
0017-4331
6-3
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