Browse Prior Art Database

Hardcopy of Printer's Configuration in Human Readable Form

IP.com Disclosure Number: IPCOM000104092D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2005-Mar-18
Document File: 2 page(s) / 79K

Publishing Venue

IBM

Related People

Breitenbach, J: AUTHOR

Abstract

Disclosed is a technique for using operator panel phrases and messages to print out a printer's configuration in human readable form.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Hardcopy of Printer's Configuration in Human Readable Form

      Disclosed is a technique for using operator panel phrases and
messages to print out a printer's configuration in human readable
form.

      A printer with an operator panel capable of displaying human
readable messages stores these messages as vectors of bytes usually
in some set of tables.  These vector sets could be used to print
stored character strings stored in the printers non volatile media if
a means were available to map the numbers to images that the printer
can print.  Currently, on older printers whose displays only support
hexadecimal digits and LEDS, the configuration printout consists of a
list of numbers requiring an expert knowledge of the printer, or
manual, to decipher.  With the use of this technique meaningful
information is displayed along with the configuration data.

      The stored strings of configuration data can be printed by use
of a table mapping the numbers contained in the strings to printable
character images.  This table, referred to as a codepage, must be
consistent with the codepage of the display's.  The Liquid Crystal
Display (LCD) used in a certain printer has a manufacturer's defined
codepage but also supports downloadable images to specific positions
in the codepage table.  These downloadable character images are
defined by the developers.  This allows the support of National
Language characters such as a circumflex C.

      When a certain printer enters the off-line state (non-host
controlled), a special font is activated.  Then the current display
language is checked and any special characters are added to the font
using a specific exception table for the display's language.  This
font is then specified to the printer as the current font when
messages, which would normally be displayed on the LCD, are sent to
be printed.  Each time the display language is changed and the
printer enters the off-line state this font is updated with the new
display language downloadable characters, i.e. the characters
normally downloaded to the display to support national language
characters.

      Since the printer's code is already capable of traversing a
list of configuration items for selection of configuration parameters
from the display, this code is readily adapted for dispatching
descriptive strings to the printer to annotate the configuration
listing.  A small amount of "wrapping", defining font id, quality,
emphasis modes and page coordinates, is all that is necessary to
adapt the descriptive strings for hardcopy on the printer.  This
technique is readily adapted to printing not only the current
parameters for a configuration setting, but all possible parameters
the setting can encompass.

Printer Configuration

Print Format and Quality
   Characters Per Inch                 10
   Lines Per Inch                      8
   Maximum Print Position             ...