Toshiba 353 User Manual

13 - 1

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

FUSER UNIT / PAPER EXIT SECTION

© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved

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.

Fig. 13-101

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.

Fuser roller

Separation finger

Pressure roller

IH coil

Thermistor

Thermostat

Cleaning roller

Exit sensor

Exit roller