Canon LBP-1210 Service Manual page 126

CHAPTER 2
(1460Vp-p) varies with the DC bias voltage. The change in the DC bias changes the potential
difference between the cylinder and drum so the density of the print can be adjusted. The
adjustment is made through a command from the interface controller.
This printer has a stirring mechanism in the cartridge to ensure that toner is applied smooth-
ly to the cylinder.
3. Transfer block
In this block, the toner image is transferred from the drum surface to paper.
Step 4: Transfer
A positive charge applied to the back of paper attracts the negatively charged toner particles to
the paper.
Step 5: Separation
The elasticity of the paper causes it to separate from the drum (curvature separation).
To stabilize the paper feed system and prevent droplets on the printed image at low temper-
ature and humidity, the charge on the back of the paper is reduced by the static charge elimi-
nator.
4. Fixing block
2 - 40
Photo-
sensitive
drum
Transfer charging roller
Figure 2-5-10
Photo-
sensitive
drum
Static charge
eliminator
Transfer charging roller
Figure 2-5-11
Paper
Paper