Canon i-SENSYS LBP5300 Series, Service Manual

Page: 43 / 150

Chapter 2
2-7
F-2-7
2.4.1.2 Print Process
0013-7399
/ i-SENSYS LBP5360 / i-SENSYS LBP5300
The principle of the image formation is described here.
The print process can be broadly divided into 5 blocks with 10 steps. A toner image is formed on paper as it goes through each process.
The following is the blocks and the steps of print process and the diagrammatic sketch.
1. Electrostatic latent image formation block
To form an electrostatic latent image on the photosensitive drum.
Step 1: Pre-exposure
Step 2: Primary charging
Step 3: Laser beam exposure
2. Development block
To make the electrostatic latent image visible on the photosensitive drum surface with the contact development method.
Step 4: Development
3. Transfer block
To transfer toner image on the photosensitive drum onto paper.
Step 5: Attraction
Step 6: Transfer
Step 7: Drum separation
Step 8: ETB separation
4. Fixing block
To fix the toner image on paper.
Step 9: Fixing
5. Cleaning block
To clean the residual toner on the photosensitive drum.
Step 10: Drum cleaning
Video Data
AT
T
TR DEV PRI PREEXP
ETB
Bk
Y
C
M
Fixing unit
Laser/Scanner unit Laser beam
Primary exposure LED
Memory tag
Attraction roller
To developing
blade
To developing
roller
Video
controller
PCB
DC controller PCB
High-voltage
power supply PCB
VIDEO
signals
To primary
charging roller
BL