PAPER TRANSFER AND SEPARATION
B156/B220 6-62
SM
6.11.2 CONTACT/SEPARATION MECHANISM
[A]: Fusing unit motor
[B]: Half-turn clutch
[C]: Paper transfer solenoid
[D]: Contact/separation lever
[E]: Cam
Timing
When transferring toner to paper, the paper transfer roller unit contacts the image
transfer belt. At other times during printing, the unit stays away from the image
transfer belt. After printing, the unit contacts the belt and stays there.
NOTE:
During standby mode, the unit stays away from the image transfer belt.
Mechanism
Fusing unit motor [A]
→
Gear
→
Paper transfer solenoid [C]
→
Cam [E]
→
Contact/separation lever [D]
→
Paper transfer roller unit movement
The fusing unit motor [A] drives the mechanism. (It also drives the paper transfer
roller).
The cam [E] is controlled by the half-turn clutch [B] and the paper transfer solenoid
[C].
When the solenoid is off, it catches a hook on the surface of the half-turn clutch [B].
As a result, the high point of the cam pushes the contact/separation lever [D], and
the paper transfer roller unit is away from the belt.
When the solenoid is activated, the hook is released, so the half-turn clutch makes
a half-turn—the unit moves to the right and contacts the image transfer belt.
B156D048.WMF
B156D047.WMF
REAR VIEW
[D]
[C]
[B]
[E]
[A]
FRONT VIEW
Summary of Contents for B156
Page 1: ...B156 B220 SERVICE MANUAL 002350MIU...
Page 2: ......
Page 3: ...B156 B220 SERVICE MANUAL...
Page 4: ......
Page 5: ...B156 B220 SERVICE MANUAL 002350MIU...
Page 6: ......
Page 8: ......
Page 10: ......
Page 26: ......
Page 27: ...INSTALLATION...
Page 28: ......
Page 102: ......
Page 103: ...PREVENTIVE MAINTENANCE...
Page 104: ......
Page 111: ...REPLACEMENT AND ADJUSTMENT...
Page 112: ......
Page 116: ...SCANNER UNIT B156 B220 3 4 SM B156R999 JPG...
Page 189: ...TROUBLESHOOTING...
Page 190: ......
Page 227: ...SERVICE TABLES...
Page 228: ......
Page 364: ......
Page 365: ...DETAILED DESCRIPTIONS...
Page 366: ......
Page 449: ...SPECIFICATIONS...
Page 450: ......
Page 461: ...1000 SHEET FINISHER B408...
Page 462: ......
Page 464: ......
Page 489: ...B456 PAPER TRAY UNIT...
Page 490: ......
Page 492: ......
Page 505: ...B457 LARGE CAPACITY TRAY...
Page 506: ......
Page 508: ......
Page 525: ...B458 500 SHEET FINISHER...
Page 526: ......
Page 528: ......
Page 549: ...B480 1 BIN TRAY UNIT...
Page 550: ......
Page 552: ......
Page 557: ...B481 INTERCHANGE UNIT...
Page 558: ......
Page 560: ......
Page 565: ...B482 BRIDGE UNIT...
Page 566: ......
Page 568: ......
Page 576: ......
Page 577: ...B490 BY PASS TRAY UNIT...
Page 578: ......
Page 580: ......
Page 588: ......
Page 589: ...B509 DUPLEX UNIT...
Page 590: ......
Page 592: ......
Page 601: ...B510 SHIFT TRAY UNIT...
Page 602: ......
Page 604: ......
Page 611: ...B750 FAX OPTION TYPE 3232...
Page 612: ......
Page 753: ...B810 AUTO REVERSE DOCUMENT FEEDER...
Page 754: ......
Page 756: ......