Construction; Major Components - Canon iR C3200 Series Service Manual

11.1 Construction

11.1.1 Specifications, Control Mechanisms, and Functions
The major functions of the fixing system are as follows:
Item
Fixing method
Fixing heater
Control temperature
Fixing drive control
Fixing temperature
detection
Protective
mechanism
Separation claw
Cleaning

11.1.2 Major Components

The fixing system consists of the following major components:
Component
Fixing roller
Pressure roller
Main heater (halogen)
Sub heater (halogen)
Description
Heat roller
2 fixing rollers (main heater, sub heater)
1 pressure roller (heat retaining heater)
190 deg C (in PSTBY)
Fixing roller speed control (by paper type and mode)
Main thermistor (non-contact; TH1, center of fixing roller)
Sub thermistor (TH2; rear end of fixing roller)
Error detection as follows; upon detection of error, cuts off
power to fixing heater:
- temperature detection by thermistor (TH1/TH2)
- temperature control by fixing thermal switch (TP1;front end of
fixing roller; operating temperature of 222 -/+8 deg C
Non-contact type (facilitates separation of paper in high-
humidity environment; under normal conditions, separation by
fixing/pressure roller)
None (cleaning-less mechanism; no element in paper path of
fixing/pressure roller)
Notation Description
48.5 mm (external diameter)
38.0 mm (external diameter)
H1 100/120V: 500W 230V: 545W
H2 100/120V: 330W 230V: 360W
T-11-1
T-11-2
Chapter 11
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