Printer Sensors

Printer Sensors

The Epic 880TM printer uses several sensors to provide feedback to the host system, as pictured in the figures below.

Anti-Jam Sensor

Paper Out Sensor

Top-of-Form Sensor

Cover-Open

Switch (inside)

Figure 18. Sensor Breakdown and Locations. Paper Low Sensor

Paper Out Sensor

A Paper Out Sensor, mounted to the Lower Paper Guide, optically senses a Paper Out flag located in the ticket path. When the sensor detects the flag, it indicates that the ticket roll is depleted.

Cover-Open Switch

A Cover-Open Switch, mounted to the inner left side plate, is activated when the Top Cover is closed and the latch depresses the switch arm. When the Top Cover is opened, the Cover Open switch trips, and the printer goes off-line.

Top-of-Form Sensor

ATop-of-Form Sensor is mounted in the paper path, and senses a pre-printed black dot (if present) on the ticket stock. This black mark is used to position the paper for printing on a preprinted form. Typically the ticket is pre-positioned to the Top-of-Form and when the ticket is complete, the paper is fed to the Top-of-Form and then cut.

100-88002 Rev B

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Epson 100-88002 manual Printer Sensors, Paper Out Sensor, Cover-Open Switch, Top-of-Form Sensor