Print Test - Canon MultiPASS C755 Service Manual

MultiPASS C755 Chapter 3: Maintenance & Service

7.2.5 PRINT test

Pressing the 3 button from the test mode menu selects the print test. This test prints various patterns. For
servicing, use the 3-7: CHECKERS pattern (press the 7 button from the print test menu). The other
patterns are not to be used since they are for development and factory personnel. End this test by pressing
the Stop button. Refer to page 3-32 if blank ink appear, etc occur.
Check the pattern for the following:
NOTE
Figure 3-30 Print Test Pattern Check
If the print test is normal, make a copy of a document. If the copy is faulty, the reading
section is faulty.
Please do not select the following menus:
3-1: MONO PTN. 3-2: CLR PTN. 3-3: CLR PTN2
If a mistake is made and these menus are selected, the value of #7 PRINTER 5. INK
ABS CAPA will be reset to 0%, so it will be necessary to re-register. Check the value of
LostInkCount. printed on the top of each test pattern, and register this value in #7
PRINTER 5. INK ABS CAPA. If the absorption amount has been forgotten, replace the
waste ink absorber and set to 0%
Check for any vertical or horizontal white
stripes on the black squares.
Also, check that all the squares have
straight edges on all four sides.
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