2NP
2-1-16
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 IH coil (IHC), 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 thermistor1 (FTH1), fuser thermistor2 (FTH2) and the surface temperature of press
roller is detected by the fuser thermistor3 (FTH3) and controlled by the engine PWB (EPWB). If the fuser sec-
tion shows extremely high temperature, the power line will be shut off and the IH coil (IHC) is forced to turn off.
Figure 2-1-20 Fuser section
10
12
13
3
5
11
7,8
2
6
4
9
1
1. Heat roller
2. Press roller
3. Uniformity heat roller
4. IH coil (IHC)
5. Core
6. Separate plate
7. Fuser thermistor 1 (FTH1)
8. Fuser thermistor 2 (FTH2)
9. Fuser thermistor 3 (FTH3)
10. Fuser thermostat (FTS)
11. Actuator (eject sensor)
12. Eject roller
13. Eject pulley
Summary of Contents for TASKalfa 2551ci
Page 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Page 10: ...This page is intentionally left blank ...
Page 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Page 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Page 473: ...2NP 1 5 62 This page is intentionally left blank ...
Page 497: ...2NP 2 1 22 This page is intentionally left blank ...
Page 555: ...2NP 2 3 48 This page is intentionally left blank ...
Page 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 620: ...DP 773 Document processor Installation Guide ...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 654: ...PF 810 3000 sheets deck Installation Guide ...
Page 667: ...DF 770 D Document finisher Installation Guide ...
Page 685: ...AK 740 Bridge unit Installation Guide ...
Page 687: ...PH 7A C D Punch unit Installation Guide ...
Page 708: ...DT 730 B Document tray Installation Guide ...
Page 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 711: ...FAX System W B Installation Guide ...