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DISPLAY MESSAGES AND FAULT FINDING
27080 Issue 1 August 98 4--19
PRINT QUALITY FAULTS
The following are examples of faulty printing. In most cases, further
investigations should begin with ensuring that the print head is clean
and properly aligned.
Head not mounted at 90 degrees to direction of product movement.
Head too far from print surface.
Pressure too low -- note missing drops from some characters.
Pressure too high -- note drops coalescing on some characters.
Incorrectbreak--up -- satellitescanbeseen in the viewerandbreak--up
is not in correct position relative to charge electrode.
Printeddropsclipping edgeofgutter--jetincorrectlyalignedtogutter,
or print height too low.
Phase error -- see incorrect break--up fault (above).
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