13. FUSER UNIT / PAPER EXIT SECTION

13.1 General Description

Toner is fused by applying heat and pressure on the transferred image on the paper which is transport- ed to the fuser unit. The paper is then transported to the receiving tray, paper exiting options or ADU. The fuser unit consists of the IH coil, fuser roller, pressure roller, separation fingers, cleaning roller, thermistors, thermostat, exit roller, exit sensor, etc.

Exit roller

Exit sensor

 

Separation finger

Thermostat

Cleaning roller

Thermistor

IH coil

Fuser roller

Pressure roller

 

Fig. 13-101

13.2 Operation

The fuser roller is pressed with the spring force from the pressure roller side, and is rotated by the main motor drive. Then the paper transported to the fuser unit is hold between the fuser roller and pressure roller and the toner is fused on the paper with heat and pressure. After this, the separation fingers separate the paper from the fuser roller or pressure roller. Then the paper is transported to the receiving tray, paper exiting options or ADU through the exit roller. In addition, the IH coil in the fuser roller does not structurally rotate.

The thermistors control the temperature of fuser roller and detect temperature abnormalities. If the temperature becomes excessively high, the thermostat is opened to stop the power supply to the IH coil.

13

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e-STUDIO350/352/353/450/452/453

 

FUSER UNIT / PAPER EXIT SECTION

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Toshiba 353, 452, 453, 350 service manual Fuser Unit / Paper Exit Section

350, 353, 453, 452 specifications

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