Print Quality Problems - Kyocera FS-1900 Service Manual

6-1-6 Print quality problems

Print quality problems range from uneven tone to completely blank output. The troubleshooting
procedure for each type of problem is given below.
(1) Completely
blank printout
See page 6-38.
(5) Black horizontal
streaks
See page 6-41.
ABC
123
(9) Dirt on the top
edge or back of
the paper
See page 6-45.
ABC
123
(2) All-black
printout
See page 6-39.
(6) Black vertical
streaks
See page 6-42.
ABC
123
(10) Undulated printing
at the left edge (scanning
start position)
See page 6-46.
This vertical
line should
be straight.
(3) Dropouts
See page 6-40.
ABC
123
(7) Unsharpness
See page 6-43.
6-35
(4) Black dots
See page 6-41.
ABC
123
(8) Gray
background
See page 6-44.
ABC
123
FS-1900