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3-4 Service Manual
5016-001
Diagnostic Mode
To enter the Diagnostic Mode:
1. Turn the printer off.
2. Press and hold the GO and RETURN buttons.
3. Turn the printer on.
4. Release the buttons when "Performing Self Test" displays on
the operator panel.
The tests display on the operator panel in the order shown:
• Print Registration
– Setting Left Margin
– Setting Top Margin
• Print Tests
– Tray 1
– Tray 2 (displayed only if Tray 2 is installed)
– Tray 3 (displayed only if Tray 3 is installed)
– Multipurpose Feeder (displayed only if a multipurpose tray is
installed)
– Print Quality Pages
• Hardware Tests
– LCD Test (Operator panel)
– Button Test (Operator panel)
– DRAM Memory Test
– Parallel Wrap Test
– Parallel 1, 2, or 3 Wrap Test (displayed only if a parallel port
is available via PC1 in slot 1, 2 or 3)
– Serial Wrap Test (displayed only if the printer supports a
standard serial port
– Serial 1, 2 or 3 Wrap Test (displayed only if a serial port is
available using PC1 slot 1, 2 or 3)