Oki Data CONFIDENTIAL
42049001TH Rev.1 89 /
6 Poor fusing (Ink spreads or peels when touched lightly with fingers.)
• Is proper paper being used?
NO Use proper paper.
▼
• YES Are the contact of the fuser unit connected properly?
NO Connect the contact of the fuser unit properly.
▼
• YES Are the rollers of the fuser unit dirty?
YES Replace the fuser unit.
▼
• NO Is MEDIA WEIGHT (menu 1) set properly?
LIGHT: 64 to 74 g/m
2
. MEDIUM: 75 to 104 g/m
2
. HEAVY: 105 to 120 g/m
2
.
ULTRAHEAVY: 121 to 203 g/m
2
. TRANSPAREMCY.
NO Set the MEDIA WEIGHT correctly.
▼
• YES Is AC voltage being output between the CN2 connector pins 1 and 3 of the low voltage power
unit?
NO Replace the low voltage power unit.
▼
• YES Does the heat roller thermistor have a rated resistance (approx. 180 k to 980 kΩ at room
temperatures of 0 to 43˚C) (see figure 5-1)?
NO Replace the fuser unit.
▼
• YES Does the fuser temperature agree with its specification? Check the fuser temperature on
the LCD display of Engine Maintenance mode.
Heat Roller: 145 to 155˚C
155 to 174˚C (when MEDIA WEIGHT is set to LIGHT)
NO Replace the fuser unit.
▼
• YES Replace the fuser unit.
Note:
When replacing the engine board (RSN PWB), extract EEPROM data from it and copy the
data onto a new engine board.
To Next Page
Loading...
