Construction - Canon iR C2880 Series Service Manual

9.1 Construction

9.1.1 Specifications, Controls, and Functions
iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
The major specifications, controls, and functions of the fixing system are as follows:
item
Fixing method
Fixing heater
Control temperature
Fixing drive control
Fixing temperature detection
Protection function
9.1.2 Major Components
iR C3380i / iR C3380 / iR C2880i / iR C2880 / iR C3580 / iR C3580i / iR C3080 / iR C3080i
Component
Fixing film unit
Fixing heater
Main thermistor
Sub thermistor 1
Sub thermistor 2
Thermal switch
Fixing motor
Fan shutter motor
Edge cooling fan (front)
Edge cooling fan (rear)
Fan shutter HP sensor
Fan shutter position sensor
*: M3, M15 or neither FM6 nor FM7 is included in the composition of the
established machine.
function/method
on-demand fixing
Heater (H1 and H2) (Inside the fixing film unit)
220 deg C (normal speed, normal temperature, plain paper)
ON/OFF control, constant speed rotation control
fixing film unit
- fixing main thermistor (contact)
- fixing sub thermistor 1 (contact)
- fixing sub thermistor 2 (contact)
execute the following error detection to block the power to the fixing heater in the case of error.
- thermistor (TH1/TH2/TH3) temperature detection
- fixing thermo switch (TP1)
operating temperature 270 deg C
Notation
film
H1,H2 for heating the fixing film (ceramic heater)
TH1 temperature control, overheating detection, fixing assembly detection (heater contact type)
TH2 temperature control, overheating detection (film contact type)
TH3 overheating detection (film contact type)
TP1 overheating detection (heater contact type)
M3 DC brush motor
M15 Opens/closes fan shutter
FM6 cooling the edge of the fixing film
FM7 cooling the edge of the fixing film
PS28 detection of fan shutter home position
PS29 detection of open/close position of the fan shutter
T-9-1
T-9-2
Description
Chapter 9
0013-9525
0013-8515
9-1