Specifications

4.4 Using Printer Resident Device Fonts
Printer resident device fonts should be used whenever possible because they print
faster than TrueType fonts that Windows prints as raster graphics. Device fonts
include letter quality Courier 10 and 12cpi, lower quality but faster printing Courier
5, 6, 17, 20cpi, NLQII 10cpi and 12cpi, and lowest quality, fastest printing draft 10
and 12cpi. Draft should not be used on passbooks.
These fonts can be selected like any other font after loading the driver and
selecting the printer as the default printer. They will print and display correctly in
WYSIWIG programs like MS Word only if a font size is selected that displays
characters at their correct spacing. A font size selection that displays characters at
a smaller spacing will print slowly as the printhead repositions to print each
character closer than its nominal spacing. MS Word curiously decreases character
spacing as larger font sizes are selected. FONTTEST.DOC on the driver disk can
be opened in MS Word or Wordpad and printed to demonstrate the resident fonts.
Insure that the left margin is set to 0.2" for the fonts and display to read correctly.
4.5 Writing to the Printer LCD Display
The driver includes 4 pseudo-fonts that write to the printer LCD display rather than
print. The action that selects one of these fonts must be immediately followed by
EXACTLY 16 characters to be displayed, without any intervening page positioning
commands. All data following the 16 characters will be printed in the font that was
selected before the pseudo-font selection. FONTTEST.DOC on the driver disk
includes display writes using all 4 pseudo-fonts.
Pseudo-fonts LCD TOP DLY and LCD BOT DLY write to the top and bottom
display lines only after all previous data has been printed. Pseudo-fonts LCD TOP
IMM and LCD BOT IMM write to the top and bottom display lines as soon as they
are sent to the printer, even if all previous data has not yet been printed. The
standard Craden display commands, ESC BEL, ESC FS, ESC DC3 and ESC GS,
can still be used by applications able to write control characters to the printer.
5.0 Interfacing
The standard interface provides RS-232 communications at 1200, 2400, 4800,
9600, 19200 or 38400 baud and has an 11 Kbyte input buffer. Characters may
contain 7 or 8 data bits, even, odd or no parity and 1 stop bit. These parameters
are all keypad programmable by 9 3 FUNCT.
5.1 Input Buffer Operation
All data received except immediate status, display and reset commands are
placed in an 11 Kbyte first-in, first-out buffer. Characters with parity errors are
replaced by a "@" and framing errors are replaced by a “~”.
The buffer may be used to receive all commands for printing an entire document.
This reduces host attention to the printer but caution must be used to determine
correct recovery from document jams and operator intervention during printing.If a
document jams in the printer, printing stops and "DOCUMENT JAM" is displayed.
The next status word transmitted will have the document jam bit set. Once
notified, the host may write recovery instructions to the display. If the transaction is
to be restarted, previously transmitted data can be destroyed by transmitting a
DC4 in mode C or a CAN in mode I. The host should request status and check the
document jam bit in the status word before re-transmitting data. The operator may
also destroy the buffer contents by pressing CLEAR after removing the document
and moving the printhead to the left wall. The host must then be notified by the
operator that the transaction data may be re-transmitted.
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