Drum Section - Olivetti d-Copia 1600 Service Manual

2-1-3

Drum section

The drum section consists of the drum, main charger section, cleaning section and cleaning lamp.
The main charger section consists of main charger wire, main charger grid and main charger shield, and the drum is
charged by a high voltage applied to the main charger wire. In addition, this section is equipped with a manual main
charger cleaner that is used for cleaning the main charger wire.
The cleaning section consists of the cleaning blade and cleaning roller that removes residual toner from the drum surface
after the transfer process, and the cleaning spiral that carries the residual toner back to the waste toner box.
The cleaning lamp (CL) consists of LEDs which remove residual charge from the drum surface.
Drum
Figure 2-1-8 Drum section
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
CL
MC
Grid
ZENER
PWB
Figure 2-1-9 Drum section block diagram
Drum
Main charger unit
Main charger wire
Drum separation claw
Cleaning roller
Cleaning spiral
Cleaning blade
Cleaning lamp (CL)
MHVADJC
YC1-8
MHVDRN
YC1-12
MHVISELN
YC1-2
HVTPWB
CL
YC3-12, 13
YC9-9
YC9-5
YC9-15
EPWB
2HA/2HB
2-1-7