• LINE FEED key: When the LINE FEED key is pressed, the printer advances the paper so that the paper
may be inserted in the printing mechanism. During power-up, if the LINE FEED key
is held down, the printer enters the SETUP routine.
• FORM FEED key: When the FORM FEED key is pressed, the printer advances the paper by a pre-set
length. During power-up, if the FORM FEED key is held down, the printer will perform
the FONT TEST routine.
• STATUS LED: displays printer hardware status. In case of malfunction, the colour and fl ash frequency
changing as follows:
STATUS LED COLOR DESCRIPTION
Turned on Green Printer on: no error
Flashing Green
Communication status
Nr. Flashings Description
1 Receive data
2 Reception errors (parity, frame error, overrun error)
3 Misinterpret command
4 Command reception time out
Flashing Yellow
Recovering error
Nr. Flashings Description
2 Heading over temperature
3 Paper end
4 Paper jam
5 Power supply voltage incorrect
6 Cover opened
Flashing Red
Unrecovering error
Nr. Flashings Description
3 RAM error
4 EEPROM error
5 Cutter error
(Tab.1)
INTRODUCTION
4 VKP80II User Manual
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