Operation; Pc Drum Charge Corona On/Off Control; Cleaning/Main Erase Mechanism - Olivetti d-Color 201MF Theory Of Operation

11. Charge corona section

11.1 Operation

11.1.1

PC drum charge corona ON/OFF control

• The grid voltage (Vg) value applied to the grid mesh is determined through the image
stabilization control.
Transport motor (M1)
Color PC motor (M3)
Drum charge corona bias Y, M, C
Drum charge corona bias K
Developing clutch/K (CL4)
Color dev. unit engaged motor
(M4)
11.1.2

Cleaning/main erase mechanism

A. Cleaning/main erase operation
1. The cleaning blade is pressed up against the surface of the PC drum, scraping
residual toner off the surface (forward blade system).
2. Toner, which has been scraped off the surface of the PC drum, is fed by the toner
collecting screw back toward to the conveying screw in the rear of the machine. It is
then collected in the waste toner collecting box.
3. The surface of the PC drum after the image transfer process is irradiated with light
from the main erase lamp. This neutralizes any potential left on the surface of the
PC drum.
Toner collecting screw
40
Cleaning blade
Theory of Operation
Theory of Operation Ver. 1.0 Sep. 2008
Cleaning blade
4038T2C024AA
4038T2C030AA
Y109670-2