Printer controller

Details Printer controller Printer controller

1989-10-19

1991-09-10

Evans, Arthur G.

Boots, shoes, and leggings

364700, 3647562, G06K 1500

Patent

active

050479571

ABSTRACT:
A printer controller for controlling a printer shared with plural external data processors is disclosed.
The printer controller includes a first memory for memorizing control data received from either one of the data processors when connected, a second memory for saving the received control data when another data processor is connected and a memory controller for saving the control data from the first memory to the second memory and for returning the control data from the second memory to the first memory when the printer is switched from one of the data processors to another one or vice versa.
The printer controller further includes a communication device for controlling communication between either one of the data processors and the printer which is capable of identifying individual data processors.

REFERENCES:
patent: 4523299 (1985-06-01), Donohue et al.
patent: 4837737 (1989-06-01), Watanabe
patent: 4866671 (1989-09-01), Yokoyama

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