OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-5
[Symptom B]
Cause
User Solution
Service Engineer
Inspection
Assumed
Replacement Part
Reference
to Check/
Replace
Parts
Print head nozzles
are clogged.
(1) Perform a nozzle print, and set nozzle map for the clogged
nozzles.
(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 the print head cleaning.
(5) Clean the print heads surfaces with print sheet mount cleaning.
Printing with a color stripe bar is effective to prevent missing dots.
- Install the last firmware
version.
- Check that the nozzles
eject ink correctly.
- 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.
- Firmware version
- PRINT HAED
- CAP, MW
- WIPING UNIT,MW
Print head nozzles
inclination.
(1) Print a nozzle print pattern, and set nozzle map for the inclined
nozzles.
(2) Printing with a color stripe bar is effective to prevent missing dots.
[Symptom C]
Cause
User Solution
Service Engineer
Inspection
Assumed
Replacement Part
Reference
to Check/
Replace
Parts
The ink does not
match the media.
(Media with low dot
spread rate)
(1) Decrease the temperature of all three heaters by 5°C. *1
* Before starting the print, ensure that the heater temperatures have
been decreased to the target temperature.
* With some media, the increasing the heater temperatures may be
effective.
(2) Change the print mode to be slower. *1 *2
(3) Use proven media.
(4) Print in high density.
- Install the last firmware
version.
- Check that the nozzles
eject ink correctly.
- 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.
- Firmware version
- PRINT HAED
- CAP, MW
- WIPING UNIT,MW
*1 Adjust the media advance adjustment value again.
*2 Note that the print speed differs depending on the mode selected.
Summary of Contents for IP-6620
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