MINOLTA-QMS magicolor 6100 Series Service Manual page 75

Paper Discharger
Transfer Roller
magicolor 6100 Series Service Manual
4.2.3.7 Second Transfer (Paper)
Second transfer (paper) is defined as a process to transfer toner images
from the transfer drum onto paper.
4.2.3.7.1
4.2.3.7.2
THV
VAC
Structure of Second Transfer
The transfer roller for the second transfer is located as shown
in Fig. 4-8.
The transfer roller is normally separated from the transfer
drum. The transfer roller is positively biased by the power
supply THV. The transfer roller contacts the transfer drum
during the paper transfer process. Transported paper passes
between the transfer roller and the transfer drum.
Process of Second Transfer
(see Fig. 4-21)
Paper is transported in synchronization with the transfer
drum.
The transfer roller contacts the transfer drum. Transported
paper passes between the transfer roller and transfer drum. In
this instance, positive high voltage (THV) is applied to the
transfer roller. Negatively charged toner is attracted to the
positively charged paper.
After of the paper transfer, the transfer roller moves away
from the transfer drum.
Transfer Drum
VAC: Power Supply for Paper
THV: Power Supply for Transfer
Toner Image
Paper
Fig. 4-21
discharging
Roller Bias
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