Oce CS 5090 User Manual page 135

Portions of lines are missing
Prime, clean, calibrate, or replace cartridges.
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Clean service station; clean cartridge again; repeat prime.
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Clean carriage flex cable and cartridge electrical contacts; repeat prime. Do
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not use alcohol, acetone, or other cleansers. Use a cotton swab moistened in
distilled water. Use tap water if distilled water is not available.
Poor vertical or horizontal line quality
Perform colour calibration (see 'Cartridge recognition' on page 38).
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Microbanding
Minimal microbanding normally occurs in the low pass modes with dense
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images. Depending on the color fill it may also occur in the 3-pass mode. The
lighter solid pastel shades, solid two-tone grays, blues, and lavender colors
are subject to microbanding in these modes. Ensure cartridges are
functioning properly and that all calibrations are correct. 95% of the time
microbanding is cartridge related.
Ink drop-out
If you are experiencing ink dropout or temporary ink starvation conditions it
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may be corrected by modifying the preheat settings on your printer.
Symptoms include horizontal bands that recover in all cases and the typical
banding pattern can either be consistent or inconsistent.
Ink starvation
Ink starvation of one or more colors can occur between 10 minutes and 4
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hours of operation due to improper system setup or a defective ink delivery
system (air leak in the system). Check pressure in the lines by initiating a
Color Test in the 2 pass mode (see 'Run a colour test' on page 35). Repeat
several times to verify pressure(see 'Causes of the most common problems'
on page 174).
Error handling and troubleshooting 135