47
Operation
Data bits
-
This is the number of bits the printer expects the computer
to use for representing a letter or other character. For modern printers,
8
bits is normal. This number does not include stop bits, which are set
separately. It does include the parity bit, which may or may not be used.
Stop bits
-
This is what tells the printer that's the end of a character.
The normal setting for this is
1.
Occasionally a printer will require
2.
Check your printer documentation to be sure.
Parity
-
If your printer has switches for parity processing, set them so
parity is Disabled. Then set the computer Parity to None. The only time
you should select Odd or Even parity for the computer, is when the device
being used with the computer demands it. Again, check the device's
documentation.
Handshake
-
This is how the printer communicates with the computer
to tell it not to send any more characters for a while. There are three
possible settings: Hardware, XON/XOFF, and No Handshake. Most of the
time you will set this for XON/XOFF, also known as software handshaking.
This is the preferred setting. The Hardware method is used by some older
printers. It uses a special wire in the cable to communicate with the com
puter. It attaches to pin
20
on the computer. Check the printer documenta
tion for the pin on the printer. The other choice, No Handshake, is seldom
used.
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