Canon imageRUNNER 1643P

CHARGE BIAS K

Adjustment of Bk-color primary charging bias

Detail	To change the primary charging bias value for black.
Use Case	When an image failure occurs
Adj/Set/Operate Method	Enter setting value, and then press OK key.
Display/Adj/Set Range	-5 to +5
Unit	10V
Default Value	0

DEV BIAS K

Adjustment of Bk-color developing bias

Detail	To change the developing bias value for black.
Use Case	When eliminating Bk-color fogging
Adj/Set/Operate Method	Enter setting value, and then press OK key.
Caution	Toner deposit on a white spot area may be solved by changing the value. Correct the value gradually and observe the result. Toner density in the printing result may change. Try either a positive or negative value while checking whether the error is cleared.
Display/Adj/Set Range	-5 to +5
Unit	10V
Default Value	0

FRT FUSE TEMP

Adjustment of fixing temperature (1st side)

Detail	To change the fixing temperature for the front side.
Use Case	When an image failure occurs
Adj/Set/Operate Method	Enter setting value, and then press OK key.
Caution	Raising the fixing temperature may cause hot offset, separation failure for thin moist paper, and/or further curling. Lowering the fixing temperature may cause fixing errors.
Display/Adj/Set Range	-4 to +4
Unit	5 deg C
Default Value	0