Kodak 800 SERIES service manual Ink Dropout, Excessive Ink Pressure

NovaJet 800 Series Service Manual

Figure 4-60. Excessive Ink Pressure.

Caution: overfilling the cartridges with ink (greater than 35 ml) can cause pressure regulating problems in the ink delivery system where large ink droplets can fall from cartridges, thus damaging the prints. High humidity in the printing environment and a dirty environment can also cause large ink droplets to form.

Ink Dropout

If the printer is experiencing ink dropout or temporary ink starvation conditions it can be improved by modifying the preheat settings under the ‘Ink Option Menu’. Symptoms include horizontal bands that recover in all cases and the typical banding pattern can either be consistent or inconsis- tent. Please refer to the illustration below of the typical symptoms encountered. Note: the vertical edges of the print are not skewed or exhibit swath shift. If swath shifts are observed then this is a servo motor or bushing problem.

NOTE: The horizontal bands do not extend beyond the page layout or edges of the print.

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