Centronics 101AL Technical Manual page 16

Rev.
1.3.3 SPECIAL FUNCTION
In addition to the printable characters shown in Appendix B, the
printer can recognize the following special functions:
1.4
Carriage Return (Octal 015) - Initiates the printing of a line.
Form Feed (Octal 014) - Moves the paper until the top of the form
hole in Tape Reader Channel 7 is reached.
Vertical Tab (Octal 013) - Moves the paper until the next hole in
Tape Reader Channel 5 is reached.
Line Feed (Octal 012) - Advances the paper one line.
Delete (Octal 177) - Primes the printer electronics to an idle state
and deletes any characters stored in the printer.
Bell (Octal 007) - Generates a two-second audible tone in the speaker
at the rear of the printer. 7
Select (Octal 021) - Allows printer to receive data, same as activating
SELECT switch.
De-Select (Octal 023) - Inhibits printer from receiving data, same as
deactivating SELECT switch.
SYSTEM FEATURES
1.4.1 FEATURES
Standard features optional features
e Vertical format control e Character sets of 64, 96 or 128 characters
e Audio alarm e Popular parallel! and serial interfaces
e Form feed control (via paper tape loop) e Automatic motor control
e Elongated boldface characters (line-by-line) e Selectable single character elongation
e Parallel data input e Elapsed time indicator
e 4 inches/second slew rate
e Prints original plus four copies
e Fixed vertical/horizontal registration
e Paper runaway inhibit
e Separate prime line and fault line to output
connector
Provision for additional character set
Remote select/deselect
Available with 50 or 60 Hertz, 115 or
230 Volts AC
Automatic line feed disabled
9x 7or5x/7 dot matrix
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