Diagnostic Information; Troubleshooting Overview; Performing The Initial Troubleshooting Check; Power-On Reset (Por) Sequence - Lexmark MX81x Service Manual

Diagnostic information

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"Troubleshooting overview" on page 35
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"Power‑on Reset (POR) sequence" on page 36
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"Using Safe Mode" on page 37
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"Fixing print quality issues" on page 37
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"Paper jams" on page 51
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"User attendance messages (0-99.99)" on page 97
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"Printer hardware errors (100-199.99)" on page 104
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"ADF and scanner errors" on page 117
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"Firmware and/or system electronics errors (900-999.99)" on page 138
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"Input/output option hardware errors" on page 147
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"Input/output option paper jam errors" on page 162
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"Symptoms" on page 199
CAUTION—SHOCK HAZARD: Remove the power cord from the electrical outlet before you connect or
disconnect any cable or electronic card or assembly for personal safety and to prevent damage to the printer.
Disconnect any connections between the printer and PCs/peripherals.
CAUTION—POTENTIAL INJURY: The printer weight is greater than 18 kg (40 lb) and requires two or more
trained personnel to lift it safely.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot
component, allow the surface to cool before touching.

Troubleshooting overview

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"Performing the initial troubleshooting check" on page 35
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"Error code number key" on page 36

Performing the initial troubleshooting check

Before you start the troubleshooting procedures, perform the following checks:
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With the power cord unplugged from the wall outlet, check that the cord is free from breakage, short-circuits,
disconnected wires, or incorrect connections.
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Make sure the printer is properly grounded. Check the power cord ground terminal.
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Make sure the power supply line voltage is within 10% of the rated line voltage.
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Make sure the machine is securely installed on a level surface in a well-ventilated area.
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Make sure the room temperature is between 16 and 32°C (60 and 90°F) and that the relative humidity is between
20 and 80%.
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Avoid sites generating ammonia gas, high temperature, high humidity (near water faucets, kettles, humidifiers),
cold spaces, near open flames, and dusty areas.
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Avoid sites exposed to direct sunlight.
Diagnostic information
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