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Troubleshooting 4-48
NovaJet 800 Series Service Manual
Perform ‘Cartridge Maintenance & Testing’ before calling technical
support or your service representative. These steps must be performed
before cartridges will be replaced in any event.
Cartridge Maintenance & Testing
ENCAD cartridges are engineered for optimum reliability and compatibil-
ity with ENCAD inks. If diminished print quality is observed, please
follow these simple steps:
1. Scroll through the printer display to obtain total ink throughput. If
the cartridge displays greater than 100% or 500 ml of ink
throughput, the cartridge has reached its warranted life. ENCAD’s
cartridge management system assures the highest quality and
reliable productivity through the useful life of the cartridge, which
may extend beyond the cartridge warranty period. In order to
ensure the quality of output, the cartridges will shut off after 1280
ml (NJ850) or 1500 ml (NJ880) of ink throughput. If the cartridge
has reached the end of its life it should be replaced. If not, go to
Step 2.
Figure 4-51. Jet Out Detection.
2. Enabling open jet compensation (see ‘Manual Jet Bypass’) will
often dramatically improve print quality. If enabling open jet
detection and/or activating the manual jet bypass feature on
problem jets (clogged/misfiring jets) found in the Prime pattern
does not improve image quality, go to Step 3.
3. Cleaning the jet plate with distilled water and a lint-free cloth
should clear any jets stopped by dust particles or other physical
obstructions. Vigorously blot the gold jet plate area on the bottom
of cartridge with the heavily dampened lint-free cloth. Repeat
several times. For cartridges which have not been used for longer