Diagnostic information 2-1
4512-220, -230
2. Diagnostic information
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CAUTION: Unplug power from the printer before connecting or disconnecting any other cable,
assembly, or electronic card. This is a precaution for personal safety and to prevent damage to the
printer.
This chapter contains the codes and diagnostic tools to aid in providing corrective action for a malfunctioning
printer. To determine the corrective action to repair a printer, look for the following information:
• A description of a problem, see “Symptom tables” on page 2-37.
• Information from the operator panel of the printer.
— Models E250d and E250dn have an operator panel containing lights and buttons.
Warning: Paper clips are commonly used near printers and can become lodged in the paper path. Always
check for debris in the paper path.
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