Testing method for extended capabilities port of printers...

Details Testing method for extended capabilities port of printers... Testing method for extended capabilities port of printers...

2008-01-01

2008-01-01

Tran, Douglas Q. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Communication

C714S025000, C714S043000, C399S027000

Reexamination Certificate

active

07315392

ABSTRACT:
A method of testing the extended capabilities port of printers involves connecting D0˜D3with 4 status signal pins, D4˜D7to the control signal pins, and the rest of the status signal pins to one of the four connected status pins. The working conditions of data transmission of the data signal pins (D0˜D7), the status signal pins (ERROR, ACK, BUSY, PE, SLCT), and the control signal pins (STROBE, AUTOFD, INT, SCLTIN) are then tested.

REFERENCES:
patent: 5557741 (1996-09-01), Jones
patent: 5588114 (1996-12-01), Bhatia
patent: 5768495 (1998-06-01), Campbell et al.
patent: 6122755 (2000-09-01), Chang et al.
patent: 7099599 (2006-08-01), Karagiannis et al.

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