Canon LASER CLASS 730i Service Manual page 156

LASER CLASS 730i/720i/710 Chapter 4: Maintenance and Service
6.4 Print Tests
a) Test mode print test
The Print Test menu is selected by pressing the numeric button 3 from the test mode menu.
In this test, various print patterns are output from the printer. As service print patterns,
press the numeric button 2 from the Print Test menu to select "2: BLK" or press the
numeric button 6 to select "6: ENDUR". Do not use the other patterns. They are for
development and factory use.
Check the following for the print pattern.
"2: BLK"
Check for white stripes and
unevenness.
After completion of the print test, if the printing was normal, copy a
document. If there is any defect in the copied image, there is a defect in the
scan section.
NOTE
Figure 4-27 Print Pattern Check
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"6: ENDUR"
Check for image shrinkig, stretching,
soiling, aand black strips.