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Line Spacing 6/8 Lines per inch
Character Pitch 10/12 Characters per inch
These switches have NO EFFECT on printing under Word
Processing.
Character and line spacing under Word Processing
always default to 6 lines per inch and 10 characters per inch
respectively, and may be modified via print directives imbedded in
each document. After printing with Word Processing, the printer is
left set to the switch settings for use with other software, except
as noted below.
FORMS LENGTH: Set to match length of paper in use -- commonly 11
inches or 66 lines; setting does not matter
if
USE FORM FEEDS print
option will not be used and you don't wish the FF switch to work.
SET TOP: Depress after positioning paper at top of form; necessary only
if USE FORM FEEDS print option is to be used or you wish the FF switch
to work.
-
FF or FORM FEED: Depress to feed paper to top of form, e.g. after
aborting print.
Installation: All daisy wheel and similar printers interfaced at 1200 baud (120
characters per second) must be installed with a "communications protocol" (as
discussed in Section 14.2) in order to avoid buffer overrun and consequent
character loss (a possible exception for the NEC is noted below). At speeds
slower than 1200 baud, these printers print slowly; you will find the effort
invested to install one of these printers with a communications protocol
rewarding because of the markedly increased printing speed.
CAUTION:
Do not attempt to use ETX/ ACK communications protocol
implemented in your operating system when driving a Diablo or Qume printer
from Word Processing.
It
won't work.
If
your operating system already can
drive a Diablo or Qume printer at 1200 baud through the use of ETX/ ACK
protocol, the portion of the operating system which implements the protocol
must be disabled or bypassed when printing from Word Processing.
This
limitation does not apply to XON/XOFF protocol, nor to NEC printers. (The
reason for this limitation is that if an "ETX" inserted in the character stream
happens to fall within an "escape sequence" being transmitted to the printer,
the printer will not recognize it as an ETX, and not respond with an ACK; nor
will the printer interpret the escape sequence correctly. Keeping the ETX's
out of the escape sequences is practical only in the program generating the
character stream; Xerox WP contains the necessary special code.
Diablo 1610/1620
Features: The spoke 20 and spoke 7F features of Word Processing are not
supported by these printers.
After printing, Word Processing leaves these printers set for 6 lines per inch
and 10 characters per inch. To set the character spacing according to the
printer's "spacing 10/12" switch before use of other software, depress the
"Clear" button.
If
other software has printed on the printer since it was
REFERENCE
13-30
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