Lexmark T430 Service Manual - Page 35
Diagnostic, formation
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2. Diagnostic information 4048-1xx Start CAUTION: Unplug power from the printer before connecting or disconnecting any 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: • Does the POR stop? Check the: - "Power-On Reset (POR) sequence" on page 2-2 - "POST symptom table" on page 2-3. • Do you have a symptom, rather than an error message? Check the "Symptom tables" on page 2-3. • If you have an error message or user message, check the following: - "Service error codes" on page 2-6 - "User attendance messages" on page 2-11. • Additional information: - "Service checks" on page 2-36 - "Solving print quality problems" on page 2-56. Diagnostic information 2-1