Printing Process - Epson AcuLaser Color 2000 Service Manual

EPSON AcuLaser C2000

2.2 Printing Process

The figure below is the flow of the printing process.
One Sheet Print Paper
Feed
8. Paper
Eject
Fusing
Device
Transfer
Belt 7.Fusing
6.Transfer
Drum
5. Development 5.Development
3. Charging 3.Charging
Toner
4.Exposure
Cassette1 Cassette1
2. Paper Feed
Option Option
Cassette 2 Cassette 2
Figure 2-6. Paper Path
Operating Principles
Duplex Print Paper Feed
9.Duplex
Transfer
roller
1.MP Paper Feed
Printing Process
Table 2-3. Printing Process
No. Unit Name
Paper feed→ Charging→ Exposure→
1. Printing process
Development→ Transfer→ Fusing→ Paper Eject
2. Paper feed Loads paper from Tray 1, Tray 2, Tray 3 (option).
Equally charges (-) to the surface of OPC drum by
3. Charging
scotron method
The laser emits a laser beam toward the OPC drum
4. Exposure surface. A laser beam creates the electrostatic latent
image on the drum surface.
After the mid-transfer, cleaning blade collects toner
OPC drum
which did not stick to OPC drum, to the waste toner
cleaning
box.
Provides toner on the electrostatic lament image to
5. Development create toner image. (Puts toner where exposed by
laser beam.)
Emits light to erase the remaining electric charge
Pre-transfer erase
(after-image). Light source: LED
Transfer
6. Transfer YMCK on the transfer belt.
Primary transfer
Provides strong electric charge on the back surface
Paper transfer of paper to transfer the toner image on the transfer
belt to the surface of paper.
After transferring the toner image to paper, the
Transfer belt
remaining toner on the transfer belt is collected by
cleaning
the cleaning blade to the waste toner bottle.
Carries image transferred paper smoothly without
7. Suction carrier
vibration to the fusing device.
Fuses the toner image on paper by the heat and
8. Fusing
pressure of heat roller + pressure roller.
9. Paper Eject Ejects image fused paper to the paper eject tray.
Revision C
Unit Function
67