Epson EPL-N4000, Service Manual

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EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles
Rev.B 82
Face Up Exit Sensor
Monitors paper travel out of the Offset Unit.
Full Stack Sensor
Monitors the paper level in the Output Tray.
Exit Gate Solenoid
Toggles the Exit Gate.
Inverter CW Clutch
Transmits Main Motor drive, forward, to the Offset Rolls.
Inverter CCW Clutch
Transmits Main Motor drive, reverse, to the Offset Rolls.
Offset Motor
Provides mechanical drive for the Offset Unit.
Duplex Module PWB
Pr5VDC, +24VDC, and command and status lines to the
Duplex PWB option.
Mailbox
Pr5VDC, +24VDC, and command and status lines to the
Mailbox option.
Finisher
Pr5VDC, +24VDC, and command and status lines to the
Finisher option.
Envelope Feeder
Pr5VDC, +24VDC, and command and status lines to the
Envelope Feeder option.
Cabinet Drive PWB
Pr5VDC, +24VDC, and command and status lines to the
High Capacity Feeder option.
Size Sensor 1
Monitors the size of the paper that is loaded in Feeder 1. The
Actuator Assembly located at the rear of the Paper Tray has series
of cams that face the Size Sensor PWB. Pushing the Paper Guide
against the paper stack slides the Actuator Assembly along a track.
When the Tray is inserted into the Feeder, the cams on the Actuator
press the switches on the Size Sensor PWB in a pattern that is
unique to the position of the Paper Guide. The MCU PWB interprets
this pattern as a specific paper size.
Figure 2-40. Size Sensor