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2NP
2-1-15
(2) Secondary transfer roller section
The secondary transfer roller section consists of the secondary transfer roller mounted to the paper conveying
unit and the separation needle. To the secondary transfer roller, DC bias is applied from the high voltage PWB
(HVPWB). The toner image formed on the transfer belt is transferred to the paper by the potential difference.
Paper after transfer is separated from the drum by applying separation charging that is output from the high
voltage PWB (HVPWB) to the separation electrode.
Figure 2-1-18 Secondary transfer roller section
Figure 2-1-19 Secondary transfer roller section block diagram
2
5
4
1
3
1. Secondary transfer roller
2. Separation needle holder
3. Paper chute guide
4. Separation needle
5. Fuser pre sensor
HVPWB
EPWB
YC6-B6
YC6-B4
YC6-B3
YC1-12
YC1-14
YC1-15
HVU1_REM
T2_CONT
SP_CONT
FUPS
YC24-5
LOOP_SW
Transfer bias
Separation bias
Transfer roller
Separation needle
Se
r
vice Manual
Y1
16
1
41-8
Содержание d-Color MF2552 plus
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