Facsimile scan position calibration apparatus and method

Details Facsimile scan position calibration apparatus and method Facsimile scan position calibration apparatus and method

1997-07-24

2000-01-18

Lee, Thomas D

Facsimile and static presentation processing

Facsimile

Facsimile measuring, testing, or calibrating

358403, 358488, H04N 100

Patent

active

060162074

ABSTRACT:
Two methods of calibrating Fax machines are disclosed. The first method utilizes a pre-printed calibration chart and a computer connected to the Fax machine to be calibrated. The calibration chart is fed into the Fax machine which sends the resultant data to the computer. This data is analyzed by the computer to determine when the Fax machine started to scan the calibration chart. If the scan process did not occur at an optimum point, the computer sends a correction value back to the Fax machine to cause the Fax machine to begin scanning subsequent documents at an optimum point. In the second method, a calibration chart is printed by the Fax machine and then fed back into the machine. A copy of the scanned calibration chart is made to determine at what point the Fax machine began scanning the chart. If the Fax machine did not begin scanning at an optimum point, a user reads the copy and manually enters a corrective offset in to the Fax machine such that subsequent documents are scanned properly.

REFERENCES:
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patent: 4933778 (1990-06-01), Tufano et al.
patent: 5198907 (1993-03-01), Walker et al.
patent: 5479269 (1995-12-01), Bronnenberg et al.
European Search Report dated Feb. 17, 1999, regarding European Patent Application EP96102927.

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