Image Formation Process; Reproduction Processes - Canon iR1020 Series Service Manual

6.2 Image Formation Process

6.2.1 Reproduction Processes

iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
The machine uses an indirect electrostatic method, and is constructed as shown below
Transfer charging
roller
The machine's image formation processes can be divided into the following 5 blocks (7steps):
Multifeeder
[1] Latent Image Formation Block
Step 1 primary charging (AC + negative DC)
Step 2 laser beam exposure
[2] Developing Block
Step 3 development (AC + negative DC bias)
[3] Transfer Block
Step 4 transfer (positive DC)
Step 5 separation (grounding)
[4] Fixing Block
Step 6 fixing
[5] Drum Cleaning Block
Step 7 drum cleaning
Fixing unit
Cleaning blade
Drum
Static
eliminator
Developing
cylinder
Paper
4. Fixing block
6. fixing
5. separation
3. Transfer block
4. transfer
Registration
Cassette pickup
Copyboard glass
Contact sensor
Image processing block
Primary
charging
roller
Laser scanner unit
Developing unit
Paper
F-6-2
Delivery
5. Drum cleaning block
7.drum cleaning
1. primary charging
2. laser beam exposure
3. development
Rotation of photosensitive drum
flow of paper
F-6-3
1. Latent image
formation block
2. Development block
Chapter 6
0013-1103
6-3