Maintaining Print Quality; Banding - Oce Arizona T220UV User Manual

Maintaining Print Quality

3.4
This section includes descriptions of some print quality problems and possible solutions.
It discusses the Diagnostic Stripe, which is a very useful tool for evaluating print
problems — See "Evaluating the Diagnostic Stripe" on page 62.

Banding

3.4.1
Banding can occur in an image for a number of reasons. Typically it occurs due to
neighbouring nozzles not firing or nozzles firing with poor directionality. This will occur
if debris has been picked up from the media or table by a printhead. If this happens,
closely inspect the underside of the carriage with a flashlight and remove the debris with
a foam-tipped swab.
Caution: Severe banding may be caused by the blot cloth
running out. Also, DO NOT re-use a blot cloth as this may
scratch the print and could scratch the print heads as well as
cause banding.
Keeping the table surface clean and ensuring the media is clean and dust free is highly
recommended to reduce banding.
Note:
Using the Diagnostic Stripe helps to quickly pinpoint the cause of any
banding.
Recommendations to Reduce Banding
• Keep the printer clean.
• Store the media in a warm and dry environment.
• Take care when loading the blot cloth, otherwise tracking will be affected
and the cloth will not advance. A good blot is essential for reliable print
quality.
• After opening the carriage cover always check that the tubes exiting the
bottom of the ink reservoirs are clipped to the side of the ink reservoir,
otherwise the acceleration of the carriage may affect the performance of the
heads.
6/2/04
Maintaining Print Quality |
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