Outline Of Operation; Outline - Canon iR5000 Service Manual

1. Outline of Operation

1.1 Outline

The fixing system has the following major functions:
Item
Fixing method
Fixing heater
100-Vmodel
120/230-V model
Control temperature
Temperature detection
Fixing temperature control
Cleaning method
Error detection
Other
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Heat roller
Main heater: controlling temperature mainly during printing
Sub heater: controlling temperature during standby
Main heater/Sub heater: controlling temperature during printing
200°C (in STBY)
[1] Main thermistor (temperature control, error detection)
[2] Sub thermistor (error detection)
[3] Thermal switch (error detection)
[1] Power-on sequence
[2] Model-specific sequence
[3] Ambient temperature sequence
Web roller (driven by solenoid and one-way clutch)
[1] By thermistor (temperature error)
[2] By thermal switch (overheating)
[1] Control of fixing assembly inlet guide drive (about 1 mm
up/down)
• High if original is B5R or longer
• Low if original is shorter than B5R
[2] Control of reciprocating movement of thermistor (about
12 mm)
[3] Control of reciprocating movement of upper separation
claw (about 3 mm)
T06-101-01
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 6 FIXING SYSTEM
Descriptions
6-1 P