Construction; Specifications, Control Mechanisms, And Functions; Major Components - Canon iR6570 series Service Manual

9.1 Construction

9.1.1 Specifications, Control Mechanisms, and Functions

The following shows the major functions of the machine's fixing system:
Item
Fixing method
Fixing heater
Fixing roller
Pressure roller
Control temperature
Fixing drive control
Fixing temperature detention
Protective mechanism
Separation claw
Bias application
Static eliminator
Cleaning mechanism
Inlet guide
Extra-small size support
Pressure release mechanism

9.1.2 Major Components

The following shows the major components of the machine's fixing system:
T-9-1
Description
IH fixing
IH heater
40 mm dia., 0.65 mm thick
38 mm outside dia.
decreased gradually from 205 deg C (at standby, 17 deg C or higher)
decreased gradually from 215 deg C (at standby, lower than 17 deg C)
by fixing roller speed control (speed control according to paper type)
- Main Thermistor (THM1, contact)
fixing roller center; 12 mm reciprocating width
temperature control, error detection
- Sub Thermistor (THM2, contact)
fixing roller rear; no reciprocating mechanism
shutter control, error detection
- Shutter thermistor (THM3; contact)
fixing roller rear; 12 mm reciprocating width
shutter control, error detection
Executes the following error detection; in response to an error, cuts power to the
fixing heater:
- thermistor temperature detention (THM1/THM2/THM3)
- thermal switch (TP1)
operating temperature: 200 +/-5 deg C
upper separation claw: contact type (3 mm reciprocating width)
lower separation claw: contact type (no reciprocating mechanism)
no
yes; for both fixing roller and pressure roller
oil application by web
re-configured according to paper type/length
control of heating area by flux blocking plate (shutter)
no
Chapter 9
0009-1153
0009-1217
9-1