Printer interface using printer response to determine printer ty

Details Printer interface using printer response to determine printer ty Printer interface using printer response to determine printer ty

1989-04-25

1991-07-09

Harkcom, Gary V.

Boots, shoes, and leggings

364900, 364930, 358296, G06F 300, H04N 132

Patent

active

050311158

ABSTRACT:
A Central Processing Unit (CPU) sends a parity command to each printer in a printing system including a plurality of printers and discriminates status data returned from the printers in response to the parity command to determine which printer is coupled to a printer interface and reads out a system program associated with the printer from a magnetic disk device. The CPU also causes a selector of the printer interface to select a dot clock signal for the printer presently coupled to the printer interface, reads out image data from a memory using this dot clock signal and sends the acquired data to the coupled printer.

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patent: 4924320 (1990-05-01), Tanaka et al.

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