Nd Transfer Section; Configuration; Drive; Operation - Konica Minolta BIZHUB C3100P Service Manual

7. 2ND TRANSFER SECTION

7.1 Configuration

[1] 2nd transfer roller
[3] Pre-transfer guide plate

7.2 Drive

[1] Transport motor (M2)

7.3 Operation

7.3.1 2nd transfer roller pressure mechanism

• The main body is provided with a mechanism that presses the 2nd transfer roller up against, and retracts it from, the transfer belt. This is
done to prevent the 2nd transfer roller from being dirtied due to patterns produced for purposes other than an actual printing operation and
to prevent creep that would otherwise occur between the transfer belt and the 2nd transfer roller as a result of tight contact between them at
all times.
• The IDC sensor serves to determine whether the two parts are in contact with, or separated from, each other.
• When the registration clutch and the 2nd transfer pressure solenoid are energized, drive of the gear train is transmitted to the lever of the
IDC sensor, closing the IDC sensor shutter. When the shutter is closed, the IDC sensor outputs a predetermined value, which allows the
main body to determine that the 2nd transfer roller is pressed up against the transfer belt.
(1) 2nd transfer roller pressure
• The 2nd transfer roller is pressed against the transfer belt to allow the toner image on the transfer belt to be transferred onto the paper.
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[3]
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O THEORY OF OPERATION bizhub C3100P > 7. 2ND TRANSFER
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[2] Retraction gear
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[2] 2nd transfer roller
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SECTION