Image reading apparatus that emits different light amounts and image forming system
AssigneeCanon Kabushiki Kaisha
InventorKenji Ooki
Life of this patent
Estimating the term…
Abstract
An image reading apparatus includes a platen on which an original is to be placed, a scanner unit configured to emit light to the original placed on the platen and receive light reflected from the original, to thereby read an image of the original, and at least one processor configured to control the scanner unit to generate an image signal representing the image based on a result of reading the image of the original by the scanner unit, wherein, in a case in which a plurality of originals are placed on the platen, the at least one processor is configured to control the scanner unit to emit the light with a first light amount in a case where the plurality of originals are originals having a first type, and emit the light with a second light amount.
Claims12
An image reading apparatus comprising:
- a platen on which an original is to be placed;
- a scanner unit configured to emit light to the original placed on the platen and receive light reflected from the original, to thereby read an image of the original;
- at least one processor configured to control the scanner unit to generate an image signal representing the image based on a result of reading the image of the original by the scanner unit, and
- determine whether a multi-crop mode is enabled
- wherein, in a case in which the multi-crop mode is not enabled, the at least one processor is configured to control the scanner unit to emit the light with a predetermined light amount, and
- wherein, in a case in which the multi-crop mode is enabled, and a plurality of originals are placed on the platen, the at least one processor is configured to control the scanner unit to:
- emit the light with a first light amount in a case where the plurality of originals are originals having a first type, and
- emit the light with a second light amount in a case where the plurality of originals are originals having a second type which is different from the first type,
- wherein the original having the second type is smaller in thickness than the original having the first type, or the original having the second type is a text original and the original having the first type is a photographic original.
An image forming system comprising:
- an image forming apparatus configured to form an image on a sheet;
- and
- an image reading apparatus configured to read an image from an original, and generate an image signal representing the read image,
- wherein the image forming apparatus is configured to acquire the image signal from the image reading apparatus, and form, on the sheet, an image based on the acquired image signal,
- wherein the image reading apparatus includes:
- a platen on which an original is to be placed;
- a scanner unit configured to emit light to the original placed on the platen and receive light reflected from the original, to thereby read an image of the original;
- at least one processor configured to control the scanner unit to generate an image signal representing the image based on a result of reading the image of the original by the scanner unit, and
- determine whether a multi-crop mode is enabled
- wherein, in a case in which the multi-crop mode is not enabled, the at least one processor is configured to control the scanner unit to emit the light with a predetermined light amount, and
- wherein, in a case in which the multi-crop mode is enabled, and a plurality of originals are placed on the platen, the at least one processor is configured to control the scanner unit to:
- emit the light with a first light amount in a case where the plurality of originals are originals having a first type, and
- emit the light with a second light amount in a case where the plurality of originals are originals having a second type which is different from the first type,
- wherein the original having the second type is smaller in thickness than the original having the first type, or the original having the second type is a text original and the original having the first type is a photographic original.
Dependencies are inferred from the claim text.