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Troubleshooting 4-49
NovaJet 800 Series Service Manual
than 2 weeks apply hot water towel to jet plate area for 15 to 30
seconds. If cleaning the jet plate thoroughly and re-priming the
cartridge does not improve print quality, go to Step 4.
4. Run a prime and inspect the printed lines. If the photo mode is
not supported as indicated by the Prime Pattern jet out detection
and the previous three steps have already been performed, contact
ENCAD Technical Support or your service representative.
General Print Misfire Analysis
- Is ink in supply to cartridge jets?
- Are the ink cartridges /contact points (flex contacts) dirty or damaged?
- Is the service station clean and working properly - seals/wipers worn?
- Are there any signs of leaking ink on or below the inkjet carrier assem-
bly?
- Is the flex driver cable connections seated properly at carriage PWA?
- Is the trailing cable damaged? Look for black runs or brown freckles in
the white cable.
- Is the septum connector or quick connect fitting damaged? - do reser-
voir valves snap in securely?
- Is the ink delivery system tubing/chain damaged?
- Inspect flex driver cables (on carriages) - has damage/ink attack
occurred?
- Reseat flex driver connection at Carrier PWA (service required).
- Replace the trailing cable assembly (service required).
Common Misfire Problems
- Cartridge electrical contacts may have oil or ink on surface (clean with
isopropyl alcohol).
- Carriage assembly flex driver cable may have ink or debris on contacts
(clean with alcohol).