O'Neil microFlash Series - Manual (Page 128)

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Definitions User Manual and Technical Guide The O'Neil microFlash Series of Printers
COM Port
The COM Port allows your PC to communicate to your microFlash
printer or some other peripheral device. The COM Port is the opening in
the back of the computer into which you insert a cable that is attached to
your printer. COM Port “A” is equivalent to COM Port 1, and COM Port
“B” is equivalent to COM Port 2.
Compressed Graphics
Graphics which have been reduced to the smallest possible size in order
to speed data transmission.
CRC- Cyclic Redundancy Check
As used in the Easy Print Store Graphic command, the CRC is a number
calculated by your program which is matched against the number
calculated by the printer after the graphic is received. If the printer’s
CRC number and the program’s CRC number match, the data was
received in its entirety. Otherwise, the graphic will be rejected.
Interference with the data can be caused by electrical noise.
Device Name
The IrDA name of the device in use, e.g. the microFlash2, microFlash3,
2t, or 2i.
Device Nickname
The IrDA name the user assigns to each printer, for easy reference.
Dots
The unit of measure for each mark made on paper. There are 203 dots per
inch for the microFlash2/3/2t series of printers (8dots/mm). For the
microFlash2i there are 128 dots per inch horzontal and 64 dots per inch
vertical.