Diagnostic Information; Troubleshooting Overview; Performing The Initial Troubleshooting Check; Power-On Reset (Por) Sequence - Lexmark MS315 Service Manual

Diagnostic information

CAUTION—SHOCK HAZARD: For personal safety and to prevent damage to the printer, remove the power cord
from the electrical outlet before you connect or disconnect any cable, electronic board or assembly.
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 it.

Troubleshooting overview

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.
Power‑on Reset (POR) sequence
When the printer is turned on, it performs a POR sequence. Check for the correct sequence 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 a warm start.
6
The main drive motor turns on.
7
The EP drive assembly drives the developer shaft located in the imaging unit.
Diagnostic information
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