Oki IP-6620 Maintenance Manual page 167

<The printout is not clean.>
[Symptom A]
Cause
The ink is improperly (1) Use the printer within the operating temperature/humidity range.
ejected from the (2) Perform the daily maintenance.
print heads. * 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.
(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.
*1 Adjust the media advance adjustment value again.
*2 Note that the print speed differs depending on the mode selected.
*3 Be sure to adjust the bidirectional adjustment value again after changing the carriage speed.
*4 Adjust the bidirectional print positions.
[Symptom B]
Cause
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.
(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.
*1 Adjust the media advance adjustment value again.
5-8
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
User Solution
User Solution
OKI Data Infotech Corporation CONFIDENTIAL
Service Engineer
Inspection Replacement Part
- Install the last firmware - Firmware version
version. - PRINT HAED
- Check that the nozzles
- CAP，MW
eject ink correctly.
- WIPING UNIT,MW
- Check the carriage
height.
- Check the cap position.
- Check that ink is sucked
when performing the FILL
CAP or PH.RECOVERY
operation.
- Check the wiping unit
operation.
- Check the wiping position.
Service Engineer
Inspection Replacement Part
- Install the last firmware - Firmware version
version. - PRINT HAED
- Check that the nozzles
- CAP，MW
eject ink correctly.
- WIPING UNIT,MW
- Check the carriage
height.
- Check the cap position.
- Check that ink is sucked
when performing the FILL
CAP or PH.RECOVERY
operation.
- Check the wiping unit
operation.
- Check the wiping position.
- Fill the system with ink
again.
Reference
Assumed to Check/
Replace
Parts
Reference
Assumed to Check/
Replace
Parts