Printer interface detection device

Details Printer interface detection device Printer interface detection device

2009-12-04

2011-12-06

Tsai, Henry (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S015000, C710S017000, C710S018000

Reexamination Certificate

active

08073989

ABSTRACT:
A printer interface detection device includes a printer interface connected to a printer interface of a computer to be detected, a microcontroller, and an indicator. The printer interface includes a number of input/output (I/O) pins and a data signal pin connected to the corresponding pins of the microcontroller. The microcontroller outputs a plurality of printing status signals to the computer according to instructions from the computer. The computer compares whether the number of printing statuses are consistent with printing statuses stored in the computer, to determine whether a printing function of the printer interface of the computer is normal. When the printing function of the printer interface of the computer is normal, the indicator is lit.

REFERENCES:
patent: 4694408 (1987-09-01), Zaleski
patent: 5157782 (1992-10-01), Tuttle et al.
patent: 5649001 (1997-07-01), Thomas et al.
patent: 5781720 (1998-07-01), Parker et al.
patent: 5953372 (1999-09-01), Virzi
patent: 6263385 (2001-07-01), Gulick et al.
patent: 6570385 (2003-05-01), Roberts et al.
patent: 2005/0030039 (2005-02-01), Roberts et al.
patent: 2006/0075318 (2006-04-01), Romero et al.
patent: 2006/0107154 (2006-05-01), Bansal et al.
patent: 2009/0265580 (2009-10-01), Lee et al.
patent: 2010/0017658 (2010-01-01), Yang et al.
Peter H. Anderson “Use of a PC Printer Port for Control and Data Acquisition”, Jun. 3, 2008, Department of Electricical Engineering, Morgan State University.
Lammert Bies “Parallel cables pinout and port info”, Feb. 27, 2009.
“Debug Card USB + LPT + Mini PCI Ports”.
Justen Everage “How to Test a Printer Port With a Volt Meter”, Wake Forest University.

Affiliated with

Also associated with

Rating

Printer interface detection device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printer interface detection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer interface detection device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4316308