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Chapter 9
9-3
F-9-4
INV_ON: fixing heater power ON signal
PWM_OUT: fixing heater power supply control signal
DCON: DC controller PCB
IH DRIVER: fixing heater driver PCB
MEMO:
The term IH stands for "induction heating."
When high-frequency current is supplied to a coil arranged inside a heater unit, a high-frequency magnetic field develops around the coil. The filed serves to permit
the flow of eddy current (induction current) to the fixing roller, causing the roller to heat on its own.
Characteristics:
The use of the IH method enables the fixing roller to warm up quickly, permitting a reduction in warm-up time (30 sec) as well as of power consumption.
9.1.4 Limiting th Rise in Temperature at the Roller Edges by Use of a Flux blocking Plate (shutter)
0015-4583
iR5065 / iR 5055 / iR5075 / / /
When small-size paper is used, the temperature of the areas of the fixing roller surface with which the paper will not come into contact will increase (overheating
of the edges). To limit such a rise to a minimum, the machine is equipped with a flux blocking plate (shutter; made of non-magnetic material), and the fact helps
maintain a high level of productivity when small-size paper is used.
F-9-5
[1] Heater coil
[2] Coil
[3] Core
[4] Shutter (The figure shows the position of the shutter for small-size paper.)
[5] Fixing roller
9.2 Basic Sequence
9.2.1 Outline
0015-4584
iR5065 / iR 5055 / iR5075 / / /
IH DRIVER
INV_ON
PWM_OUT
DCON
J1040
J2402
J130
[1]
[2]
[3]
[4]
[5]
Содержание imageRUNNER 5055 series
Страница 1: ...Feb 26 2007 Service Manual iR5075 5065 5055 Series ...
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Страница 27: ...Chapter 1 Introduction ...
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Страница 53: ...Chapter 2 Installation ...
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Страница 98: ...Chapter 2 2 42 ...
Страница 99: ...Chapter 3 Basic Operation ...
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Страница 109: ...Chapter 4 Main Controller ...
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Страница 129: ...Chapter 5 Original Exposure System ...
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Страница 163: ...Chapter 6 Laser Exposure ...
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Страница 173: ...Chapter 7 Image Formation ...
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Страница 211: ...Chapter 8 Pickup Feeding System ...
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Страница 263: ...Chapter 9 Fixing System ...
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Страница 307: ...Chapter 10 External and Controls ...
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Страница 321: ...Chapter 10 10 9 F 10 8 ...
Страница 345: ...Chapter 11 MEAP ...
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Страница 389: ...Chapter 12 RDS ...
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Страница 399: ...Chapter 13 Maintenance and Inspection ...
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Страница 411: ...Chapter 14 Standards and Adjustments ...
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Страница 441: ...Chapter 15 Correcting Faulty Images ...
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Страница 471: ...Chapter 16 Self Diagnosis ...
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Страница 493: ...Chapter 17 Service Mode ...
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Страница 553: ...Chapter 18 Upgrading ...
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Страница 572: ...Chapter 18 18 16 F 18 29 2 Click Start F 18 30 3 When the session has ended click OK ...
Страница 587: ...Chapter 18 18 31 F 18 59 2 Select the data to download F 18 60 3 Click Start ...
Страница 589: ...Chapter 19 Service Tools ...
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Страница 591: ...Contents Contents 19 1 Service Tools 19 1 19 1 1 List of Special Tools 19 1 19 1 2 List of Solvents Oils 19 1 ...
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Страница 595: ...Feb 26 2007 ...
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