Kyocera DP-3600 - Manual (Page 171)

Print Quality Problems
5-7
Printed Results Corrective Action
Clean the main charger wire.
Open the printer’s side cover. Pull the green main charger
wire cleaning knob slowly in and out a few times. (See
Chapter 4.)
Check the main charger unit installation.
Open the printer’s side cover. Remove the main charger unit
half way out, then reinstall it properly. (See Chapter 4.)
Dirt on the top edge or back of the paper Check the transfer roller.
Pull out the paper feed unit and check whether the transfer
roller is dirty. If so, print several pages to eliminate the dirt.
Check the paper feed unit.
Pull out the paper feed unit and check whether the inside of
the printer is soiled with toner. If so, wipe it clean using the
supplied cleaning cloth.
Characters out of position. Check the file or program.
See if the problem is caused by an error with PRESCRIBE 2e
commands. If the problem occurs only with a specific file or
program, the most likely cause is an error in a parameter to a
command or command syntax.