Expander cartridge for printer font cartridge

Details Expander cartridge for printer font cartridge Expander cartridge for printer font cartridge

1990-08-06

1992-08-25

Evans, Arthur G.

395110, G06K 1500

Patent

active

051426145

ABSTRACT:
A high speed, low cost real time graphic image printing system includes a host data processing system, a laser printer having a font cartridge port, a font cartridge that is writable in real time by the host to facilitate high speed printing of graphic images and an expander cartridge. The expander cartridge plugs into the printer font cartridge port and in turn provides ports for pluggably receiving both a read only font cartridge and a real time font cartridge that is writable by the host. The expander cartridge serves as a multiplexer to couple a selected one of the two font cartridges to the printer.

REFERENCES:
patent: 4908637 (1990-03-01), Chung et al.
Laser Jet Series II Printer Technical Reference Manual, Hewlett-Packard, First Edition, May 1987, chapters 1-11.

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