Browse Prior Art Database

Font Source Selection for an ASCII Printer

IP.com Disclosure Number: IPCOM000037586D
Original Publication Date: 1989-Apr-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Durrett, WV: AUTHOR [+3]

Abstract

Disclosed is a printer feature which extends the user's font support (i.e., typestyle selection) for an ASCII printer without requiring a change to the ASCII data stream or existing PC applications.

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Font Source Selection for an ASCII Printer

Disclosed is a printer feature which extends the user's font support (i.e., typestyle selection) for an ASCII printer without requiring a change to the ASCII data stream or existing PC applications.

New printers are required to emulate the ASCII data stream designed for previous printers that have very limited font support. Font support on the most popular ASCII printers is limited to controls which allow selection of four fonts (really pitch selections) 10 CPI, 12 CPI, compressed, and proportional spacing. No data stream controls are provided for typestyle support. One of the requirements for new printers (particularly page printers) is more extensive font support. Therefore, there is a mismatch between the printer requirements and the capabilities of the data stream which must be emulated.

The printer feature disclosed is an operator panel function which allows the operator to select the source for the printer's "resident" font set. The operator can select either the printer's internal fonts or the printer's font cartridge as the source for the "resident" fonts. Once the operator has selected the font source, the ASCII controls then apply to that set of fonts. The printer's internal font set provides one typestyle. Other typestyles are available to the user simply by selecting the printer's font cartridge as the font source and inserting a cartridge containing the desired typestyle. Thus, multiple typestyle support is...