Importance

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Abstract

An image reading apparatus is disclosed which improves reading accuracy by eliminating the effect of crosstalk between neighboring signal lines and removing residual charge, which cause residual images, without complicating the configuration of the image processing circuit. The elimination of the crosstalk effect is based on a relational expression among the electric potentials of three adjacent common signal lines, the load capacitances of the lines, and the coupling capacitances between the center line and each of the outer lines. The residual charge removal uses another relational expression among the scan data from a common signal line, the scan data previously supplied from the same common signal line, and the capacitances of the photodiode section and the wiring section.

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First Claim