EC-PACK EC-JET 2000, Manual

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User Manual The1.1 version of 2018 Guangzhou EC-PACK CO.LTD
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NOTE: It is sometimes possible for the least deflected drops to clip the cover slot, in which case
the effect is similar to the Gutter Clipping fault.
Most commonly, the drops are lost at the bottom of the print, as in the above print sample.
Whether the top or the bottom of the print is missing, a typical result of print head cover catch is a
fine diffuse spray of drops.
Cause and Cure:
Check the EHT settings and connections. Check the print head cover slot for an obstruction, which
may be a build up of ink. If the print head cover is badly out of place on the print head, the drops
to be printed may miss the cover slot altogether. Ensure that the conduit is not pulling the print
head out of line with the cover slot.
Print Samples
The above print sample shows what can happen if the print head cover slot is obstructed by dried
ink, dust or some other contaminant, such as a hair.
Cause and Cure:
Clean the exit slot using the appropriate solvent for the type of ink being used in the printer. Make
sure that the print head cover is correctly positioned and securely fitted on the print head.
NOTE: Some of the Printhead Cover Catch print samples may show similarities with Phasing
Errors problems. The fundamental difference to note is that phasing errors still print ALL the
drops, although not in the correct positions, while print head cover catch (or clipping) problems
show a considerable loss in the number of drops printed.
10.5.2. Problem Solving - Ink System Mechanical Faults
FC12 Pressure Loss
There are several ways in which a pressure loss can manifest itself:
●
a Low Pressure warning on start-up (error 3.12);
● a No VOD Adjustments warning (error 3.00);
●
a significant discrepancy between Set Pressure and Read Pressure when the