Panasonic Workio DP-3030, Service Manual

Page: 252 / 486

252
DP-2330/3030
MAR 2005
Ver.2.1
DP-2310/3010
6.6.3. Fuser Operation
The paper passes through the Fuser Roller (1026) and is subjected to heat and pressure in the Fuser Unit.
Pressure between the Fuser Roller (1026) and Pressure Roller (1027) fuses or bonds the toner into the
paper.
Fuser Roller (1026)
A Teflon coated roller supplies heat for bonding the toner to the paper. The temperature of the surface is
kept constant at approximately 190
°
C (± 10
°
C) (or 374
°
F).
Fuser Lamps (1043, 1044)
Located in the Fuser Roller (1026) are 2 Fuser Lamps (1043, 1044) that serve as the heat source for the
Fuser Roller (1026).
Thermistor Assembly 1 & 2 (1041, 1042)
A heat sensitive resistor, in contact with the Fuser Roller (1026), monitors the surface temperature and
keeps the temperature at the specified level by controlling the Fuser Lamps (1043, 1044).
Thermostat (1038) and Thermal Fuse (1040)
The Thermostat (1038) and the Thermal Fuse (1040) are installed in the Fuser Roller (1026), providing
an extra overheat protection.
Printer Motor (901)
The Main Motor (907) provides the driving force to the Fuser Roller (1026) through the Fuser Roller
Gears.
Pressure Roller (1027)
This converted PFA tube Silicon Rubber Roller applies pressure to the Fuser Roller, assisting in bonding
the toner to the paper.
Upper Finger (1067)
Pressure Roller (1027)
Fuser Lamps (1043/1044)
Fuser Roller (1026)
Cleaning Web Roller
(1083)
Thermostat (1038)
Thermal Fuse (1040)
Thermistor Assembly
(1041)
Exit Roller (1028)
Recording Paper