Oki IP-6620 - The Printout Is Not Clean

256
Troubleshooting
The printout is not clean.
[Cause]
The ink is improperly
sprayed from the print
head.
[Cause]
The ink is drooling.
[Cause]
The print head is
scratched by media.
Basic image [Symptom A] [Symptom B] [Symptom C]
[Cause]
The pressure roller is
dirty.
[Symptom D]
Cause Solution
[Symptom A]
The ink is improperly ejected from the
print heads.
(1) Use the printer within the operating temperature/humidity range.
(2) Perform the daily maintenance.
* Be sure to clean the head guard, media edge guards, carriage bottom surface, and the
right and left sides of the top of the print heads.
(3) Perform print head cleaning (STRONG).
(4) Change to a more suitable print mode, or set the carriage speed to SLOW.
*
1
*
2
*
3
(5) Clean the print heads surfaces with print sheet mount cleaning (
page 127).
(6) If the print heads height setting is set to high, set it to normal. *
4
* If problems occur with the media used when the print heads height setting is set to
normal, set it to another option. (
page 182)
[Symptom B]
The ink dribbles.
(1) Use the printer within the operating temperature/humidity range.
(2) Check for obstructions such as media lint or ink clot in the nozzle scanning path
including the platen surface, and remove them.
(3) If the media is curled or wrinkled, solve the problem by referring to the description
on the problem, The media is curled or wrinkled.
(4) Perform the daily maintenance.
* Do not forget to clean the head guard and media edge guards.
* Be sure to perform print head cleaning.
* Be sure to clean the caps.
(5) Clean the print heads surfaces with print sheet mount cleaning (
page 127).
(6) With media that easily creates static electricity, the static electricity may cause the
ink to dribble. With such media, set the ionizer to ON. *1
(7) With some banner media, light media edges may touches the print heads, which
may cause the ink to dribble.
[Symptom C]
The print heads are scratched by the
media.
(1) Check that the media was installed properly in the conditions below.
- The installed media is installed parallel to the printer.
- The operation panel shows the media type correctly.
- The media winding mode is optimal for the installed media.
- If the media is curled or wrinkled, see the description on the problem, The media is
curled or wrinkled.
(2) Check for obstructions such as media lint or ink clot in the nozzle scanning path
including the platen surface, and remove them.
(3) Perform the daily maintenance.
* Do not forget to clean the head guard and media edge guards.
* Be sure to perform print head cleaning.
(4) Clean the print heads surfaces with print sheet mount cleaning (
page 127).
(5) Set the suction fan parameter of the preset to a stronger setting. *
1
(6) If the ionizer is set to ON, set it to OFF.