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2-1-9
2-1-6 Fuser section
The paper sent from the transfer/separation section is interleaved between the heat roller and the press roller.
The heat roller is heated by the fuser heater (FUH), and the toner is fused by heat and pressure and fixed
onto the paper because the press roller is pressed by the fuser press spring. The surface temperature of heat
roller is detected by the fuser thermistor (FUTH1,2) and controlled by the engine PWB (EPWB). If the fuser
section shows extremely high temperature, the power line will be shut off and the fuser heater (FUH) is forced
to turn off.
Figure 2-1-17 Fuser section
Figure 2-1-18 Fuser section block diagram
3
4
1
5
2
2
7
8
9
10
11
12
13
6
1. Heat roller
2. Fuser heater (FUH)
3. Fuser thermostat (FUTS)
4. Fuser thermistor (FUTH1)
5. Separators
6. Press roller
7. Actuater (Eject sensor (ES))
8. Fuser eject roller
9. Fuser eject pulley
10. Upper fuser frame
11. Lower Fuser frame
12. Pre fuser guide
13. Fuser thermistor (FUTH2)
YC1-1
YC1-2
YC21-1
YC21-2
YC26-3
HEAT2REM
HEAT1REM
TH2
TH1
EXTSENSN
PSPWB
YC2-1
YC2-2
YC2-3
YC2-2
FUH1
FUH2
FUTS1
FUTS2
YC1-2
EPWB
Fuser unit
FUTHRPWB
FUTH2
FUTH1
ES
Summary of Contents for PG L2555
Page 1: ...SERVICE MANUAL PG L2555 PG L2550 PG L2545 PF 320 PF 3100...
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Page 27: ...1 1 14 This page is intentionally left blank...
Page 43: ...1 2 16 This page is intentionally left blank...
Page 67: ...1 3 24 This page is intentionally left blank...
Page 107: ...1 4 40 This page is intentionally left blank...
Page 109: ...1 5 2 Figure 1 5 2...
Page 139: ...1 5 32 This page is intentionally left blank...
Page 194: ...2 4 12 This page is intentionally left blank...
Page 199: ...Installation Guide 500 sheets paper feeder Installation Guide...
Page 201: ...Printed in China 303NY5631002 Rev 1 2012 8 G G G G G G...
Page 202: ...2000 sheets bulk feeder Installation Guide...
Page 204: ...Printed in China 303KF5632002 Rev 1 2012 7 1 2 3 4 1 2 3 1mm PF 315...
Page 205: ...SSD HD 6 HD 7 Installation Guide...
Page 206: ......
Page 207: ......
Page 208: ...IEEE1284 Interface Installation Guide...
Page 211: ...Network interface Installation Guide...
Page 214: ......
Page 215: ...OS...
Page 216: ...Wireless LAN interface Installation Guide...
Page 219: ...SERVICE MANUAL Published in August 2012 843NY110 3NYSM060 First Edition PF 320...
Page 224: ...1 1 3 1 1 3 Machine cross section Figure 1 1 2 Machine cross section Paper path...
Page 249: ...SERVICE MANUAL Published in August 2016 843S3110 3S3SM060 First edition PF 3100...
Page 252: ...2 4 Appendixes 2 4 1 Wiring diagram 2 4 1...
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