Scanner capable of calibrating black and white reference position and its calibration method

Application Number: 00103076
Application Date: 2000.02.24
Publication Number: 1310427
Publication Date: 2001.08.29
Priority Information:
International: G06K7/10;G06K9/03
Applicant(s) Name: Hongyou S&.T Co., Ltd.
Inventor(s) Name: Cai Zhencai;Zhang Dezhi
Patent Agency Code: 11127
Patent Agent: li qiang
Abstract A scanner with corrective standard stop for white and black and its correcting method includes a shell, a scanning module, a driving unit, a correcting zone including a black standard target and a white standard target and a control circuit. The scanning method is as to move the scanning module to the correcting zone by driving unit under the control of the control circuit, each sensing device of the scanning module scan the white and black targets to create a corresponding white and black image signal and then to correct the image signal produced at the time of sensing device scanning the decument according to the white image signal and black image signal created by each sensing device under the control of the control circuit.