Image forming and color correcting system
AssigneeMinolta Co., Ltd.
InventorToshihisa Motosugi
Life of this patent
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Abstract
Disclosed is an image forming and color correcting system. The system includes an image forming apparatus and a method for correcting halftone color in an image forming apparatus. The apparatus includes an image reading unit, an image forming unit and a parameter sensing unit. The units of the apparatus are controlled such that halftone color of a scanned document image are corrected when a parameter of the document is inside a predetermined range and a warning is given when the parameter is outside the predetermined range.
Claims23
An image forming apparatus, comprising:
- (a) an image reading unit for scanning a document image on a document, for converting the document image into image data and for transmitting the image data to a signal processing unit within the image forming apparatus;
- (b) an image forming unit for receiving the image data from the signal processing unit and for forming the image data onto a recording medium;
- (c) a parameter detector for detecting a parameter of the document and;
- a controller for correcting halftones of the document image, for calculating whether the parameter detected by the parameter detector coincides with a parameter of a correction pattern document stored in a memory and for warning when the detected parameter of the document is not the parameter of the correction pattern document.
A method for correcting halftone color in an image forming system comprising:
- (a) providing an image forming system comprising an image reading unit, an image forming unit a parameter detector and a memory;
- (b) scanning a document image on a document in the image forming unit;
- (c) detecting a parameter of the scanned document in the parameter detector;
- (d) determining whether the detected parameter is not a parameter of a correction pattern document stored in the memory;
- and
- (e) correcting halftone color of the scanned document image when the detected parameter is the parameter of the correction pattern document.
An image forming system comprising:
- (a) an image reading unit for reading an image on a document and for generating image data of the read image, said image reading unit comprising a detector which detects a parameter of the document positioned on a document setting portion;
- (b) an image forming unit for forming an image onto a recording medium;
- (c) a memory storing a parameter of a correction pattern document;
- and
- (d) a controller which controls said image forming unit to form a test image on the recording sheet, controls said detector to detect a coordinate of said recording sheet which is positioned on said document setting portion by a user, and warns of an abnormal condition of said recording medium in a case where the detected parameter is not the stored parameter of the correction pattern document.
Dependencies are inferred from the claim text.