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e-STUDIO350/352/353/450/452/453
FUSER UNIT / PAPER EXIT SECTION
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© 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
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 ngers, cleaning roller,
thermistors, thermostat, exit roller, exit sensor, etc.
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
ngersseparatethepaperfromthefuserrollerorpressureroller.Thenthepaperistransportedtothe
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
Separationnger
Pressure roller
IH coil
Thermistor
Thermostat
Cleaning roller
Exit sensor
Exit roller
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