POSIFLEX Business Machines PP7700 Series - Manual (Page 12)

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2.
When To Replace Paper
Whenever the printer gives paper out signal or a red line
appears on the thermal paper, it is the proper timing for replacing
the paper. Do not wait till the print engine is dragging the paper
roll at the very end. It is recommended not to turn off the power
only for paper replacement for this model. However, please pay
extreme attention not to touch the still hot thermal elements or
any electrically live part. Remove the leftover and replace a new
paper roll as illustrated above to prevent excessive paper dust in
the printer and consequently possibility for paper jam.
B. CONNECTION / SET UP
1.
Serial Connection
All the external connectors are in the recessed area at the
rear bottom. The serial connector should be used only in specific
technical applications like debug testing or firmware upgrade.
Nothing should be connected to this port in normal operation.
2.
Wireless Connection
a. General concepts
The standard PP7700 delivered is equipped with the
wireless interface. A wireless Dongle DG2000 to control this
printer must be separately purchased and installed to one of the
serial COM ports of Posiflex POS system. We know that usual
wireless printer solutions require the application software to use
the printer server in WLAN. In distinction, the Posiflex wireless