Original reading apparatus and information processing apparatus with original reading apparatus
AssigneeCanon Kabushiki Kaisha
InventorsNaohiro Iwata, Minoru Yokoyama, Yuji Nakano, Hideyuki Terashima
Life of this patent
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Abstract
The present invention provides an original reading apparatus including a pre-scan mode for reading a color reference member before an original is read, a registration mode for aligning a tip end of the original before the original is read, and a reading mode for conveying and reading the original. The reading apparatus further comprises first and second rotary member to perform the above three modes, and these modes are effected by selectively rotating the first and second rotary members in a normal direction and/or reverse direction and selectively stopping the first or second rotary member.
Claims17
An original reading apparatus including a reading means comprising:
- a first rotary member for conveying an original;
- an image information reading portion disposed downstream of said first rotary member;
- and
- a second rotary member, disposed downstream of said first rotary member and opposed to said image information reading portion, for conveying the original,
- said apparatus being operative to perform:
- a pre-scan mode for reading a color reference member by said reading portion before the original is read by said reading portion, the pre-scan mode being effected such that said reading portion is caused to be opposed to the color reference member by relatively shifting said reading means and the color reference member,
- a registration operation for aligning a tip end of the original before the original is read, and
- a reading mode for reading the original by said reading means and conveying the original,
- wherein the pre-scan mode is effected by rotating said second rotary member is a reverse direction, the registration mode is effected by stopping said second rotary member and by rotating said first rotary member in a normal direction, and the reading mode is effected by rotating said second rotary member in a normal direction.
An original reading apparatus comprising:
- a first rotary member for conveying an original;
- a conveying member for feeding the original;
- an image reading portion disposed downstream from said first rotary member;
- a second rotary member, opposed to the image reading portion, for conveying the original;
- and
- a motor,
- said apparatus being operative to perform:
- a pre-scan mode for reading a color reference member by said reading portion before a reading of the original is effected by said reading portion or a conveying of the original has been performed, the pre-scan mode being effected such that said image reading portion is caused to oppose the color reference member by rotating the motor in a first direction, and reading of the original is effected by a feeding of the original by said conveying member and by rotating said motor in a second direction, and
- a registration mode for aligning a tip end of the original before reading is effected, the registration mode being effected by applying a conveying force to the original while restraining a feeding of the tip end of the original by rotating said motor in the second direction.
Dependencies are inferred from the claim text.