Epson EPL-N4000 - Mechanical Drive for the Fuser; Mechanical Drive for Exit Drive

EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles
Rev.B 62
2.2.8 Mechanical Drive for the Fuser
The Main Motor provides mechanical drive for the Fuser Assembly. The
Main Drive Assembly transmits drive to the Fuser Drive Assembly and
on to the Fuser Heat Roll Gear. A
g
ear at the end of the Heat Roll drives
the Pressure Roll. The Heat and Pressure Rolls rotates continuously
while the Main Motor is on and the Left Front Cover is closed. Part of
the same mechanical link that opens and closes the Drum Shutter when
the Left Cover is closed, pushes the Fuser Drive Gear a
g
ainst the Fuser
Heat Roll intermediate
g
ear, which transmits drive to the Fuser Heat
Roll.
Figure 2-14. Fuser Drive Mechanism
2.2.9 Mechanical Drive for Exit Drive
The Main Motor provides mechanical drive for the Offset and Exit Rolls.
The Main Drive Assembly transmits drive to the Inverter CW Clutch and
to the Inverter CCW Clutch. At a specific point in the print cycle the
MCU switches on the CW Clutch. The CW Clutch transmits forward
drive to the Offset Roll, which drives the sheet of paper into the Face
Down Output Tray. If the printer is runnin
g
in Duplex Mode, at a specific
point in the forward drive, the MCU switches off the CW Clutch and
switches on the CCW Clutch. The CCW Clutch transmits reverse drive
to the Offset Roll and to the Exit Roll, which drive the paper back across
the top of the Fuser Assembly and into the Duplex Module.
Figure 2-15. Exit Drive Mechanism