Paper Sensors; Open Cover Sensor; Fig.3.10- Localization Of The 'Out Of Paper' And 'Near-End Paper' Sensors - Fenix SM2000 Operation Manual

FENIX IMVICO
SM2000 OPERATION MANUAL

3.7- PAPER SENSORS

The SM2000 has two specific photo sensors for paper: 'out of paper' and 'near-end paper'.
The out of sensor paper has the basic function of informing the printer controller about the existence of
paper (on the printing line), as there are some actions (as an example, printing without paper) that could
seriously damage the mechanism. This error block all the printer activities related to cutting and printing.
The 'near-end paper' sensor detects when the paper roll is near its end of file. This error, by default,
does not stop printing, but through the ESC c 4 command, it can be achieved that the 'near-end paper'
detection stops the printing. If a 25 mm inner diameter paper roll is used, the sensor will trigger when X
meters of paper remain (approximately).
The final user can detect these errors with the PAPER OUT LED and ERROR LED, and the application
developer can test them through the DEL EOT command, being able to act accordingly.
Near-end
paper
OUT of paper
sensor

Fig.3.10- Localization of the 'out of paper' and 'near-end paper' sensors.

3.8- OPEN COVER SENSOR

When this sensor detects the opening of the cover, it lights the PAPER OUT LED, blocking all the
activity related to printing and cutting. The printing resumes when the cover is closed.
The sensor is a micro switch sensor. The roller (once the roller is fixed in its anchor) applies pressure
on the micro switch, and closes. For that reason, the cover must be closed so that it does not surpass
the chassis in any of its ends.
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