5-77
Confidential
Assurance Mode Switch 06 (Printing Assurance 4)
 Selectors 1 and 2: Improvement of white and black horizontal streaks on bottom 
edge of the paper during normal and high-speed printing on 
plain paper
Setting these selectors enables improvement of the white and black horizontal steaks on the
bottom edge of paper during normal and high-speed printing on plain paper.
 Selectors 3 and 4: Improvement of white and black streaks at the center from the 
top of the paper during normal and high-speed printing on 
plain paper 
Setting these selectors enables improvement of the white and black steaks that appear from the
top to the center of paper during normal and high-speed printing.
 Selectors 5 and 6: Improvement of white and black streaks during glossy paper 
printing
Setting these selectors enables improvement of the white and black vertical steaks on paper
during glossy paper printing.
Selector
No.
Function Setting and Specifications
1
2
Improvement of white and black 
horizontal streaks on bottom edge 
of the paper during normal and 
high-speed printing on plain paper
No. 1 2
0 0 : Disable (default)
0 1 : Improve black streaks
1 0 : Improve white streaks
1 1 : Improve black streaks more
3
4
Improvement of white and black 
streaks at the center from the top of 
the paper during normal and high-
speed printing on plain paper
No. 3 4
0 0 : Disable (default)
0 1 : Improve black streaks
1 0 : Improve white streaks
1 1 : Improve black streaks more
5
6
Improvement of white and black 
streaks during glossy paper 
printing
No. 5 6
0 0 : Disable (default)
0 1 : Improve black streaks
1 0 : Improve white streaks
1 1 : Improve black streaks more
7
8
Not used