Temperature Control - Canon iR5000i Service Manual

CHAPTER 6 FIXING SYSTEM

3.2 Temperature Control

The machine uses the following methods to control the fixing temperature:
State
[1] Power-on sequence
[2] Model-specific se-
quence
[3] Ambient tempera-
ture sequence
[4] Down sequence
(text mode)
Normal [5] Down sequence
halftone mode (other
than text mode)
[6] Edge overheating
prevention mode
[7] Jam recovery mode
[8] Power save mode
[9] Wait time reduction
mode
[10] Priority on fixing
mode
[11] Priority on produc-
Setting in tivity mode
service [12] Thick paper mode
mode (120/230V model
only)
[13] Special paper mode
6-12 P
Item
Used if the fixing roller is 75°C or lower at power-
on.
Used to suit the rated voltage of the model (100 V
or 120/230 V).
Used as follows depending on the machine inside
temperature detected by the environment sensor: if
18°C or more, H mode; if between 12°C and 18°C,
M mode; if less than 12°C, L mode.
Used to prevent faulty fixing in continuous printing
mode.
Used to prevent faulty fixing of halftone images in
continuous printing mode.
Used to prevent overheating of the edges of the fix-
ing roller when small-size paper is used.
Used if transfer paper is in the fixing/feeding unit
in the presence of a jam.
Used to decrease the control temperature, thus sav-
ing on power consumption.
Used to decrease the print start temperature by
15°C to reduce print time; for iR5000, 4 min or
less; for iR6000, 1 min or less.
Used to switch the down sequence temperature; in-
creases the fixing temperature by 10°C.
Used to switch the down sequence temperature; de-
creases the fixing temperature by 10°C.
Used to increase the fixing temperature at the start
of printing to 203°C or higher to improve fixing
(after power-on, 212°C in M/L mode).
Used to hold printing unit if the fixing temperature
reaches 180°C for special paper.
T06-302-01
COPYRIGHT © 2001 CANON INC.
Description
2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001