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User Manual
BK-S216
in the printer shall be cleared;
Feed button –When the printer doesn't alarm, press this button to feed paper; If feeding paper for
a long distance, you can press down this button constantly;
After pressing down feed button for 1s while turning on the printer, the printer shall output a
self-test page of which the content could change with the printer configuration;
Note: Before printing a self-test page, you must affirm that paper is available and the print head
doesn't lift up (Self-test page refers to Appendix 1 Printer self-test page);
Cut button –Press it to cut paper under any circumstances (even the printer has errors)
Power switch –Press down "O" to turn off the power or press down "—" to turn on the power.
3.4 Sensor
3.4.1 Sensors of print mechanism
Fig.3.4.1 Sensors of print mechanism
Paper sensor: Shown as in Fig. 3.4.1 Sensors of print mechanism, it is a reflection optical sensor
used for detecting paper status and mark status. When finding paper end, the printer stop working
and warn. Paper sensor can be adjusted at left, middle and right where could be set when out of
factory according paper type.
Paper load sensor: It is a reflection optical sensor used to position paper when semi-loading paper
in the printer. This sensor can be set only in the middle shown as Fig. 3.4.1.
Print head lift-up sensor: It is a microswitch used to detect print head status. When finding the print
head lift up, the printer stops working and alarm shown as Fig. 3.4.1.
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