Diagnostic information
• “Troubleshooting overview” on page 35
• “Fixing print quality issues” on page 37
• “Paper jams” on page 47
• “Understanding printer messages” on page 76
• “Printer hardware errors” on page 87
• “ADF/Scanner hardware errors” on page 140
• “Input option hardware errors” on page 161
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 18kg (40 lb) and requires two or more
trained personnel to lift it safely. Use the hand holds on the side of the printer. Make sure your fingers are not
under the printer when you lift or set the printer on the floor or another stable surface.
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 35
• “Power‑on Reset (POR) sequence” on page 36
• “Using Safe Mode” on page 36
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.
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Diagnostic information
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