• 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.
Power‑on Reset (POR) sequence
When you turn on the printer, it performs a POR sequence.
Check for correct POR functioning of the base printer by observing the following:
1 The control panel indicator light turns on.
2 The control panel display turns on.
3 A splash screen appears on the display.
4 The cooling fan turns on.
5 The fuser heater turns on.
Note: The fuser takes longer to warm up from a cold start than from a warm start.
6 The main drive motor turns on.
7 The EP drive assembly drives the developer shaft located in the imaging unit.
8 The exit rollers turn.
9 The control panel indicator light blinks.
10 Ready appears on the display.
Using Safe Mode
Safe Mode lets the printer continue to operate in a special limited mode in which it attempts to continue oering
as much functionality as possible despite known issues.
Warning—Potential Damage: Safe Mode is intended as a short‑term workaround and should be used only in
the case of a non‑critical error when a print job must be completed before service can be arranged to repair
the printer. The printer must be returned to standard operating mode before diagnostics can be run or
full‑function printing can continue.
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Diagnostic information
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