Epson AcuLaser C1900 - Chapter 4 Using the Printer Software with Macintosh; Accessing the Printer Driver

EPSON AcuLaser C1900/AcuLaser C900 Revision B
Operating Principles Description of Mechanisms 109
2.4.6 Fusing Process
2.4.6.1 Fuser Unit
OVERVIEW
In this process, the toner transferred to the paper in the transfer process is fused to the paper.
For fusing, this printer uses the heat roller fusing system. The sheet with toner on passes
between the heat roller, which is heated up by the heater lamp, and the back-up roller.
During this passage, heat and pressure are applied to permanently fuse the toner to the
paper.
Figure 2-22. Fuser Unit
DRIVE
The fuser mechanism is driven by the main motor (M1).
Figure 2-23. Drive
FUSING ROLLER PRESSING
The fusing roller and pressure roller must always be in the pressed position except when
they are released from pressure for maintenance work or parts replacement. At the
occurrence of paper jam in the fuser area, release the fusing roller from the pressure by
bringing the fusing jam removal lever into the release position.
Figure 2-24. Fusing Roller Pressing
5
Fusing Roller
Pressure Roller
Thermistor (TH1)
Thermostat (TS1)
Fusing Roller
Heater Lamp (H1)
Pressure Roller
Heater Lamp (H2)
Pressure Spring
Main Motor (M1)
Fusing Jam Removal Lever