Mustek PP7000-II - Manual (Page 12)

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. 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. CONNECTING CABLES
1. Serial connection
All the external connectors are in the recessed area at the
rear bottom. The serial connector is a 9 pin D sub Female
connector at the right in the picture above. Apply the male
connector of RS232 cable to this port for serial application. Please
note that when serial connection is used, there must be no cable
connection at the parallel port on the printer. The default protocol
used in serial connection is 19200 bps, none parity, 8 data bits, 1
stop bit. Set in setup window the switch positions both 1, and 2
to OFF leaving the rest unchanged as factory default setting.
2. Parallel connection
The parallel connector is a 25 pin D sub Male connector at
the leftmost location in the connector area. Apply the female end
of the parallel cable at this port for parallel application. Please
note that when parallel connection is used, there must be no cable
connection at the serial port on the printer. Please also note that to
keep parallel interface in fast operation, please adjust in setup
2 - 2