Canon imageRUNNER 2525 Series Service Manual page 84

User mode
Special Mode P (To The fixing mode is changed when either of
prevent a curl of thin the plain/ recycled/ color/ 3-hole paper is
paper/ recycle paper) selected in the control panel. The produc-
tivity is reduced and fixing grade is im-
proved.
Special Mode G (To The productivity is reduced and fixing grade
increase the fixing is improved.
grade for heavy pa-
per)
Special Mode G (To The down sequence time is reduced when
increase the produc- switching the paper size. The fixing grade
tivity during down se- is reduced and productivity is improved.
quence) (*3)
Special Mode F (To The down sequence time is reduced in the
reduce the wait time collation adjustment mode. The fixing
during rotation/ colla- grade is reduced and productivity is im-
tion adjustment proved.
mode)
*1. N1 mode: "Normal temperature control" -24 deg C (when the cassette feeding, and the fixing temperature is 100 deg C or
more at the start of warm-up control.)
*2. N3 mode: "Normal temperature control" -48 deg C (when the cassette feeding, and the fixing temperature is 100 deg C or
more at the start of warm-up control.)
*3. The setting of rotation/collation mode is given priority to over this setting.
■ Paper loop amount control before fixing
Purpose:
• To get a proper image by avoiding a shock when the trailing edge of paper comes out of the registration roles, an appropriate
paper loop is formed between transfer roller and fixing roller.
Registration
roller
Starting conditions:
• This control is performed at every paper feeding.
Operation:
Summary
Pressure roller
Fixing film
Drum
Loop sensor(S6)
Transfer roller
Setting value
Off (Default)
Medium (Fixing grade is im-
proved)
High (Fixing grade is improved) S-thin paper mode temperature
Off (Default)
On (Fixing grade is improved)
Off (Default)
On (Productivity is improved)
Image Priority (Default)
Speed Priority 1 (Productivity is
improved)
Speed Priority 2 (Productivity is
improved more)
74
2. Technical Explanation
Temperature control/produc-
tivity
Normal temperature control
(Plain paper mode)
Thin paper mode temperature
control
control
Normal control
The productivity is reduced by 4
sheets or 5 sheets.
Temperature difference between
the main and sub thermistors to
start the paper feeding: 20 deg C
Temperature difference between
the main and sub thermistors to
start the paper feeding: 30 deg C
Temperature difference between
the main and sub thermistors to
start the paper feeding: 20 deg C
Temperature difference between
the main and sub thermistors to
start the paper feeding: 40 deg C
Temperature difference between
the main and sub thermistors to
start the paper feeding: 60 deg C
Sensor: OFF
Sensor: ON