CHAPTER 6 FIXING SYSTEM

3.2.1 Fixing Temperature Control

The machine is equipped with the following modes to suit the type of paper used: plain paper, thick paper, bond paper, and envelope/postcard (each with a specific control table).

A start point of temperature control on the control table is determined based on the tem- perature of the fixing lower roller considered against the following factors:

a.Reading of main thermistor (TH1)

b.History of jobs (intervals, quantity)

F06-302-01 shows a sample control table:

 

Main

 

 

 

 

power

Print

 

 

switch ON start

 

End

 

STBY

 

STBY

Wait indication

Green

Red

Green

Fixing heater(M4)

 

 

 

 

Main heater(H1)

 

 

 

 

Sub heater(H2)

 

 

 

 

220˚C

 

 

 

 

215˚C

 

 

 

Bond paper

210˚C

 

 

 

205˚C

 

 

 

mode

200˚C

 

 

 

 

195˚C

 

 

 

Thick paper

190˚C

 

 

 

185˚C

 

 

 

mode

180˚C

 

 

 

Plain paper

175˚C

 

 

 

170˚C

 

 

 

mode

165˚C

 

 

 

 

 

 

Lower

Fixing lower temperature estimate

Higher

 

 

 

F06-302-01

 

6-8 P

COPYRIGHT © 2001 CANON INC.

CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001

Page 268
Image 268
Canon IR2800, IR3300, IR2200 manual Fixing Temperature Control, F06-302-01