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3-18 Maintenance
NovaJet 500/630/700 Series Service Manual
14. Inkjet sputter. If the cartridge heater is set too high, inkjet
sputter may occur causing intermittent white spots throughout
the print.
15. Improper grounding or earthing. An improper A/C outlet power
ground may cause banding due to excessive noise on the line
between the neutral and ground. Ensure the outlet has a clean
zero ground potential with minimal noise between the neutral
and ground.
16. Static electricity. Using certain types of media (i.e. polyester-
based media), static electricity buildup within the media roll
may effect the un-roll resistance and cause momentary banding
to occur. However this has not been tested.
17. Data corruption may also effect banding. If you are using a
parallel cable that is too long or improperly shielded, the data
being sent to the printer may get corrupted and cause artifacts
in the print.
18. Overlapping images of different types on the same print may
create color bands between the images at the overlaps (i.e. RGB
images with CMYK images).
Alignments/Adjustments
The ENCAD NovaJet 500/630/700 printers are designed with a
minimum of maintenance requirements in mind. Calibrations include:
color calibration, deadband alignment, and X-axis calibration. The
mechanical adjustment requirements include the slide shaft profile and
cartridge head height adjustments. They do not require any electrical
alignments.
Slide Shaft Profile Adjustment
The NovaJet 500/630/700 printers Slide Shaft height is factory set and
is firmly mounted on the outer sides and only has adjustments in the
middle portion of the shaft, to remove any bowing of the shaft’s profile.
The following procedure is to ensure that the Slide Shaft is relatively
perpendicular to the surface of the Platen and to remove any bowing
that may be present in the shaft’s profile.