Olivetti d-Copia 600, Service Manual

Page: 355 / 454

2-1-18
2-1-5 Transfer section
The transfer section comprises the transfer charger belt for transferring the toner image on the drum onto the paper, and
conveying the paper after transfer to the fuser section, the transfer roller for applying the transfer bias to the transfer
charger belt, etc.
When the paper passes between the drum and the transfer charger belt, the transfer bias current output from the transfer
high voltage PWB (THVPWB) is applied to the transfer roller.
This effects the transfer charging and the toner image developed on the drum is transferred to the paper.
Also, through the transfer charge, the transfer charger belt is charged and pulls the paper and separates it from the drum.
Figure 2-1-19 Transfer section
Figure 2-1-20 Transfer section block diagram
(1) Transfer lower front guide
(2) Idle belt roller
(3) Transfer roller
(4) Transfer stay
(5) Transfer belt
(6) Belt drive roller
(7) Transfer rear guide
(8) Transfer ground roller
Transfer roller
Transfer bias
(DC- / DC+)
TRF -CNT
YC6-5
YC3-1
YC6-7
YC6-9
YC6-11
TRF +CNT
TRF INV
TRF REM
TRM
THVPWB
EPWB CSPWB
TRM CLK
TRM ALM
TRM REM
CN1-6
CN2
CN1-5
CN1-4
CN1-3
YC2-9
YC2-8
YC2-7
YC2-5
YC2-6
YC4-6
YC4-7
YC4-8
YC4-10
YC4-9
CS SDO
CS SDI
CS SCLK
YC4-4
YC4-3
CS SEL
CS RDY
Service Manual Y104350-7