Diagnostic Information; Troubleshooting Overview; Performing The Initial Troubleshooting Check - Lexmark M5150 Service Manual

Diagnostic information

•
"Troubleshooting overview" on page 53
• "Fixing print quality issues" on page 55
•
"Paper jams" on page 63
•
"Understanding the printer messages" on page 213
• "User attendance messages" on page 230
•
"Printer hardware errors" on page 237
•
"Input/output option hardware errors" on page 263
CAUTION—SHOCK HAZARD: If you are accessing the controller board or installing optional hardware or
memory devices sometime after setting up the printer, then turn the printer off, and unplug the power cord
from the electrical outlet before continuing. If you have any other devices attached to the printer, then turn
them off as well, and unplug any cables going into the printer.
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

•
"Performing the initial troubleshooting check" on page 53
•
"Power‑on Reset (POR) sequence" on page 54
• "Using Safe Mode" on page 54

Performing the initial troubleshooting check

Before you start the troubleshooting procedures, perform the following checks:
•
With the power cord unplugged from the electrical outlet, check that the cord is free from the breakage, short
circuits, disconnected wires, or incorrect connections.
•
Make sure the printer is properly grounded. Check the power cord ground terminal.
•
Make sure the power supply line voltage is within 10% of the rated line voltage.
•
Make sure the machine is securely installed on a level surface in a well‑ventilated area.
•
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%.
•
Avoid sites generating ammonia gas, high temperature, high humidity (near water faucets, kettles, humidifiers),
cold spaces, near open flames, and dusty areas.
•
Avoid sites exposed to direct sunlight.
•
Make sure the paper is the recommended paper for this printer.
•
Make a trial print with paper from a newly opened package, and check the result.
Diagnostic information
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