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"OEM" Daisy Printers:
Word Processing may be installed to drive the NEC
5500, Diablo Hy-Type II 1300
series,
and Qume Sprint 3 (with cable adapter)
OEM printers with a single menu selection (as will be described in Section
13.4). Users of OEM printers may disregard the rest of Section 13.2.
"Serial" Daisy Printers: The printers not noted as "OEM" in the list on the
previous page are usually supplied with a "Serial" interface.
When using a
serial daisy printer
with
Word Processing, you will generally wish to set the
printer and the computer interface to 1200 baud (120 characters per second).
This is
the highest transmission speed supported by these printers.
Such
printers operate far below
their
speed capability with Word Processing when
set to 300 baud (30 characters per second) or less. Use of 1200 baud generally
requires use of a "communications protocol" to prevent loss of characters; use
of a communications protocol usually precludes access to the printer as the
"CP/M List Device".
Read Sections 13.2.2 and 13.2.3 carefully, and check
Appendix A:
Specific
Printers with regard to your printer, before attempting
to install Word Processing to drive one of these printers at 1200 baud. The
CP/M list device driver design for the 820-11 supports the Xon/Xoff
communications protocol.
"Teletype-liken Printers:
This class includes almost all printers other than
daisy wheel and similar printers -- that
is,
any printer that prints ASCII
printing characters (hex codes 20 through 7F) and responds to carriage return
and line feed codes.
.
Using a Teletype-like printer, Word Processing can underscore, overstrike,
double strike, and overprint. Boldface
is
printed with three strikes. Subscripts
and superscripts are printed in the line below or above
if
~hat
line
is
blank,
otherwise they print in the line in which the codes appear.
Variable line height is not available. A
choice
of two character pitches and
two ribbon colors is available through special installation. Right-justification
of printout on a Teletype-like printer is accomplished by inserting whole
spaces between words.
A daisy wheel or similar printer will operate with Xerox Word Processing
installed for a Teletype-like printer, but only the Teletype-like printer
capabilities will be available, and bidirectional printing will not occur.
Two menu selections are provided for Teletype-like printers:
A.
Any Teletype-like Printer
B.
Teletype-like Printer That Can Backspace
Selecting
A
or
8
installs Word Processing to make use of the basic capabilities
common to all Teletype-like printers.
Use of additional capabilities for
specific
printers, such as pitch change or ribbon color change, can be enabled
via special installation.
Selection B produces faster printing of underscore,
boldface, double strike, and backspace. Choose
this
selection if you know your
printer can backspace;
if
you are in doubt as to whether your printer can
backspace, selection A will also work.
REFERENCE
13-2
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