D-F10072 NP-K3053/K2053 Product Specifications Rev.1.00
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4.1.4 Self-diagnostic Print
1) Checkable points by self-diagnostic print
• Function of control circuit board
• Version of control F/W
• Setting statuses of Memory Switch (MS)
• Operation of paper end sensor (paper sensor)
2) Start / finish of self-diagnostic print
Turn ON the power while pressing FEED switch and release the FEED switch after
initialization response from the printer mechanism. Then self-diagnostic print
activates. Finishes after printing out prescribed printing patterns. During
self-diagnostic printing, printer is in off-line status.
4.1.5 Paper Sensor
Paper detection sensor is attached to paper path inside the printer mechanism. This detects
status when paper runs out. When detection, the printer transmits the paper end status and
stops printing.
Please do not use a roll paper that is glued (or taped) to the core at the end of paper
because that kind of a roll paper is impossible for the sensor to detect paper end status.
Please replace a paper roll as soon as paper-out status is detected.
