ENCAD T-200, Руководство по обслуживанию

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ENCAD T-200 and T-200+ Service Manual
Maintenance 3-15
2) Print a test file approved by ENCAD that uses only the printer
driver software and the ENCAD printer.
If the test file prints correctly, the problem lies in either the software
package that generated the print or the RIP, if used.
A simple test to determine if the banding is caused by the computer/
RIP/application or the printer is to rotate the image 90 degrees and see
if the banding rotates or remains in the same orientation as the previ-
ous print. If the banding does not rotate, then look for causes in the
printer. If the banding does rotate with the image, then look for causes
in the computer/RIP or application.
Common Banding Causes
1. The RIP (Raster Image Processor) and print cycles. We
recommend printing to a file first and then queuing the file to
the printer to avoid the RIP and print cycle delays that can
cause banding while printing.
2. Uneven inkjet kogation (partial clogging or orifice restriction) on
the inkjet cartridge head nozzles. Run the 100% color test and
re-prime or replace the cartridge if necessary.
3. Lower quality print modes normally cause slight banding, to
reduce this banding, switch to 4-pass printing mode.
4. Air bubbles in the ink delivery system (if installed). This
indicates a loss of negative pressure within the ink cartridge or
ink delivery system, check all quick release fittings and
connections for possible leaks and ensure that the cartridge is
primed properly.
5. Improper priming. The lower secondary chamber within the
cartridge may de-prime and then temporarily recover after
entering the service station causing a momentary color drop out
in the print if the cartridge is improperly primed.