FENIX IMVICO
SM3000 OPERATION MANUAL
3.7- PAPER SENSORS
The SM3000 has three specific photo sensors for paper: ‘Out of paper’, ‘ paper near-end’ and 'ticket
pickup'.
The out of paper sensor 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 paper near-end 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 ‘paper near-end’
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 ticket pickup sensor detects if the ticket has been picked up by the user, once printed and cut.
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.
Fig.3.7-
Paper sensors location.
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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OUT of paper
sensor
Paper
near-end
sensor
Ticket pickup
sensor
