1.2 Preparatory Requirements
Be sure to check the following items before starting the troubleshooting procedures:
Voltage of the power supply is within the specifications (measure the voltage at the electric outlet).
Power cord is free from breakage, short-circuit, disconnected wire, or incorrect connection in the
The laser printer is properly grounded.
The laser printer is not installed at a place subjected to too high temperature, too high humidity, too
low temperature, too low humidity or rapid change of temperature.
The laser printer is not installed close to water service, humidifier, heat generating unit, or fire, in
very dusty place, or a place exposed to air flow from the air conditioning system.
The laser printer is not installed in a place where volatile gas or inflammable gas is generated.
The laser printer is not installed under direct sunbeams.
The laser printer is installed in a well-ventilated place.
The laser printer is installed on a stout and stable plane.
10) Paper used meets specifications (standard paper is recommendable).
11) The laser printer is handled properly.
12) Parts which should be periodically replaced are replaced each time when specified number of
sheets have been printed.
13) Make the PHD ASSY and the FRAME ASSY DEVE reseated, and try some printing using the
papers out of a newly opened package.
1 – 2
Chapter 1 Troubleshooting