To exit the Diagnosis Mode, press the Return button from the top menu to return to general mode.
POR must be performed after hardware test and others for stable operation.
General Service
Pattern Print
When the copy’s image has a problem, do not print scanned image, but print 256 patterns to distinguish
the cause.
1. Select Pattern Print from diagnosis mode.
2. Press Select key.
3. Check 256 patterns instead of actual scan.
4. To exit, press Return.
Button Test
1. Select Button Test from diagnosis mode.
4. To test operations of each button, press each button on the Control Panel once and see if names of
each key are displayed on LCD. But, for Return button, it is used as to exit the test menu, it will not
be displayed, but exits the test.
5. Press Return to cancel the test.
Printer Service
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