Low-level direct connect for PCL printers

Details Low-level direct connect for PCL printers Low-level direct connect for PCL printers

1996-05-31

1997-05-27

Coles, Sr., Edward L.

395112, G06F 1500

Patent

active

056339925

ABSTRACT:
A method and apparatus for coordinating a mode of communication between a host module and a receiving module wherein a specific data string is selected which, when sent to a receiving module, specifically a printer, requests the printer to convert to a packetized data command format. If the printer is capable of communicating in a packetized format the printer converts accordingly and transmits the appropriate response to the computer. If, on the other hand, the printer is not capable of communicating in a packetized format and does not recognize the specific data string, the specific data string will be ignored by the printer as null characters.

REFERENCES:
patent: 5220674 (1993-06-01), Morgan et al.
patent: 5303336 (1994-04-01), Kageyama et al.
patent: 5323393 (1994-06-01), Barrett et al.
patent: 5371837 (1994-12-01), Kimber et al.
patent: 5388920 (1995-02-01), Ohara
patent: 5469532 (1995-11-01), Gerlach et al.
patent: 5537550 (1996-07-01), Russell et al.

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