HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
4-1
CHAPTER 4
TROUBLESHOOTING
1. INTRODUCTION
1.1 Initial
Check
(1) Operating
environment
Check if :
•
The source voltage stays within ±10% from the rated voltage shown on the rating plate.
•
The printer is installed on a solid, level surface.
•
The room temperature is maintained between 10°C and 32.5°C. The relative humidity
is maintained between 20% and 80%.
•
The printer is not located in a dusty place.
•
The printer is not exposed to ammonia fumes or other harmful gases.
•
The printer is not located in a hot or humid area (such as near water or a humidifier).
•
The printer is not exposed to direct sunlight.
•
The room is well-ventilated.
•
The printer is not placed where the ventilation hole of the printer is blocked.
(2) Print
paper
Check if :
•
A recommended type of print paper is being used. [If the paper is too thick or too thin,
or tends to curl, paper jams or paper feed problems may occur, or printed images may
be blurred.]
•
The print paper is damp. [If so, use fresh paper, and check whether the print quality
improves or not.]
•
The print paper is short-grained paper or acid paper. [If so, print quality problems may
occur.]
For further information on paper, refer to
(3) Consumable
parts
Check if :
(HL-5240/5250DN)
•
The LEDs on the printer control panel indicate “Toner Life End”. If the LEDs indicate
“Toner Life End”, replace the toner cartridge with a new one.
(HL-5270DN/5280DW)
•
The LCD shows “TONER LIFE END” the printer has run out of the toner is not evenly
distributed inside the cartridge.
For further information on consumable parts, refer to
