Image formation apparatus
AssigneeCanon Kabushiki Kaisha
InventorsToshio Honma, Hiroaki Takeda, Tadashi Suzuki
Life of this patent
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Abstract
An image formation apparatus such as a copying machine has an image forming section including an optical system, an AE mode selection key for setting the automatic density adjustment mode, UP and DOWN keys for manually adjusting the density level, an interruption selection key, a control circuit including a microcomputer for setting a standard density level in the automatic density adjustment mode, and a display for displaying the selected density adjustment mode. Depression of the AE mode selection key for the first time sets the automatic density adjustment mode, and depression of this key for the second time releases the automatic density adjustment mode. The apparatus can reproduce copies of optimal quality for different types of original.
Claims18
An image formation apparatus comprising:
- (a) image forming means for forming on a recording medium an image corresponding to an original image;
- (b) manual setting means for manually setting a density of the image to be formed by said image forming means;
- (c) detecting means for detecting an image density of the original image;
- (d) density control means for controlling an operation condition of said image forming means, in a manual density adjustment mode, in accordance with the density set by said manual setting means, and in an automatic density adjustment mode, in accordance with the original image density detected by said detecting means;
- and
- (e) selecting means for selecting either one of the manual density adjustment mode or the automatic density adjustment mode,
- (f) wherein said density control means sets the operation condition of the image forming means to a specific condition in response to the selection of the automatic density adjustment mode by the selecting means.
An image formation apparatus comprising:
- (a) image forming means for forming on a recording medium an image corresponding to an original image;
- (b) manual setting means for manually setting a density of the image to be formed by said image forming means;
- (c) detecting means for detecting an image density of the original image;
- (d) density control means for controlling an operation condition of said image forming means, in a manual density adjustment mode, in accordance with the density set by said manual setting means, and in an automatic density adjustment mode, in accordance with the original image density detected by said detecting means;
- (e) selecting means for selecting either one of the manual density adjustment mode or the automatic density adjustment mode;
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- (f) mode control means for releasing the automatic density adjustment mode during image formation by said image forming means in accordance with the automatic mode and before the completion thereof.
An image formation apparatus comprising:
- (a) image forming means for forming on a recording medium an image corresponding to an original image;
- (b) manual setting means for manually setting a density of the image to be formed by said image forming means;
- (c) detecting means for detecting an image density of the original image;
- (d) density control means for controlling an operation condition of said image forming means, in a manual density adjustment mode, in accordance with the density set by said manual setting means, and in an automatic density adjustment mode, in accordance with the original image density detected by said detecting means;
- (e) interruption selecting means for allowing an interruption image forming operation during a predetermined image forming operation and before the completion thereof;
- and
- (f) mode control means for selecting the automatic density adjustment mode in response to the selection of the interruption image forming operation by the interruption selecting means.
An image formation apparatus comprising:
- (a) image forming means for forming on a recording medium an image corresponding to an original image;
- (b) manual setting means for manually setting a density of the image to be formed by said image forming means;
- (c) detecting means for detecting a density of the original image;
- (d) density control means for controlling an operation condition of said image forming means, in a manual density adjustment mode, in accordance with the density set by said manual setting means, and in an automatic density adjustment mode, in accordance with the density of the original image detected by said detecting means;
- and
- (e) mode control means for releasing the automatic density adjustment mode in response to the operation of said manual setting means during the automatic mode.
Dependencies are inferred from the claim text.