Canon imageRUNNER 1750 Series Service Manual page 83

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Technical Explanation > Fixing System > Controls > Print temperature control
C.Paper interval temperature control
At paper interval where no paper is fed to the Fixing Assembly, the control temperature
is set lower than the print control temperature (-5 deg C *1) to prevent temperature
rising of the Fixing Assembly and save energy.
*1. -5 deg C for plain paper. The temperature is set at -15 deg C or -20 deg C
according to the paper type.
Target temperature during printing
The control temperature is determined according to the fixing mode and fixing temperature
at the start of Startup control. Eight fixing modes are available according to the selected
pickup cassette and paper type.
The following shows an example of control temperature when the fixing temperature at
the start of Startup control is 65 deg C or higher and lower than 70 deg C: (Temperature at
standby with 20 deg C room temperature)
Fixing mode Setting
Plain paper (64 to 90g/m 2 )
Heavy paper 1 (91 to 105g/m 2 )
Heavy paper 2 (106 to 128g/m 2 )
Bond paper
Paper type
Transparency
Envelope
Special Mode N (Medium) *1
Special Mode N (High) *2
*1 Special Mode N (Medium): -20 deg C of normal control temperature (at pickup from
cassette, when fixing temperature at the start of Startup control is 100 deg C or higher)
*2 Special Mode N (High): -35 deg C of normal control temperature (at pickup from
cassette, when fixing temperature at the start of Startup control is 100 deg C or higher)
2 Technical Explanation > Fixing System > Controls > Print temperature control
Control temperature (deg C)
1-sided print/1st side 2nd side of 2-sided
of 2-sided print print
Normal Low Normal Low
Speed Speed Speed Speed
215 155 210 150
215 155 210 150
--- 175 --- 170
--- 175 --- 170
--- 150 --- ---
--- 180 --- 175
195 150 185 145
180 145 170 140
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Related Service Mode
Fixing control temperature offset (to increase/reduce control temperature)
PRINT > SW
> 62 (control temperature at the time of normal pickup)
> 63 (control temperature in heavy paper/heavy paper H/Bond Paper mode)
> 166 (control temperature at the time of low speed pickup)
> 173 (control temperature on the 2nd side of 2-sided print)
<Setting value>
0 to 2: +15 degrees C
3 to 11: +12 to -15 degrees C (increment by 3 degrees C) [Default: 7]
12 to 14: -15 degrees C
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