Xerox ColorQube 9303 Series, Руководство по обслуживанию

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February 2013
3-87 ColorQube® 9303 Family
TP 13
Image Quality
TP 13 Text Test Pages
Figure 1 shows the three text test pages used to represent black, text-only printed documents.
Text test pages are printed from dC612 .
NOTE: All test prints should be printed on A4 or 8.5 x 11 inch plain paper and long edge feed.
Use the best quality media available. Do not use hole punched paper. Failure to do this will
result in an error message being printed instead of the test page.
NOTE: When the paper selected for the test print pages is correct, the test pages will be
printed with annotations on the bottom edge confirming the test print name, LEF status and
that double chevrons will be printed if the paper used is A4. The chevrons indicate the stitch
position between print heads.
Purpose
Text test pages are used to diagnose text quality defects. There are no known imaging prob-
lems that affect only text and allow all other printed objects, such as fills, dithers, lines, and pic-
tures to be defect-free. Text quality is particularly sensitive to incorrectly placed dots; thus it is
most dependent on proper print head operation, mechanical alignment, and motion. The third
page of landscape text repeats the same characters over and over again across the page to
aid in detecting spatial variations in dot placement. Look for relative differences between the
quality of the characters across the print.
To solve image quality problems associated with text, refer to IQ 5 and IQ 19 .
Figure 1 Text test pages