Canon GP160DF Service Manual page 354

CHAPTER 13 TROUBLESHOOTING
4. CCD test <2: CCD TEST>
When you press 2 on the numeric key pad in the TEST MODE menu, the CCD TEST
is selected. When 8 on the numeric key pad is pressed during the running of this test,
shading adjustment is performed.
(See page 13-9.)
5. PRINT test <3: PRINT>
a) Test pattern printing mode
When you press 3 on the numeric key pad, the PRINT TEST is selected.
There are two service-use print patterns. They are shown below. Do not use the
other print patterns, as they are for factory and development use.
• 3-2: BLACK: output when 2 on the numeric key pad is pressed.
• 3-6: ENDURANCE: output when 6 on the numeric key pad is pressed.
To cancel the test print, press the stop key.
Check the print pattern to make sure
there is no image reduction, stretching,
soiling or black stripes.
13-120
Figure 13-517
COPYRIGHT © 1999 CANON INC.
Check the print pattern to make sure
there are no white stripes or unevenness.
CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)