JP2015084054A5

JP2015084054A5 - Image processing device

Info

Publication number: JP2015084054A5
Application number: JP2013222684A
Authority: JP
Filing date: 2013-10-25
Publication date: 2016-12-08
Anticipated expiration: 2033-10-25

Description

本発明は、画像処理装置に関し、特に加熱装置における温調制御を行う技術に関する。
The present invention relates to an image processing equipment, to a technique especially controls the temperature in the heating apparatus.

上記課題を解決するために本願発明は以下の構成を有する。すなわち、入力画像に対する印刷時の定着温度を決定する画像処理装置であって、前記入力画像の画素ごとにトナー載り量を算出する算出手段と、前記入力画像において、Ｍ×Ｎ画素のサイズからなる局所領域を所定のシフト量だけシフトさせながら当該局所領域に含まれる画素のトナー載り量の代表値を記憶部に記憶していく記憶手段と、前記記憶部に記憶されている前記代表値から前記入力画像全体におけるトナー載り量を決定し、当該トナー載り量に基づいて前記入力画像に対する定着温度を決定する決定手段とを有する。 In order to solve the above problems, the present invention has the following configuration. That is, an image processing apparatus for determining a fixing temperature at the time of printing for an input image, the calculation unit calculating a toner application amount for each pixel of the input image, and the input image having a size of M × N pixels. storage means to continue to store the representative value of the amount of applied toner of the pixels included in the local area while shifting the local area by a predetermined shift amount in serial憶部, from the representative values stored in the storage unit Determining means for determining a toner application amount in the entire input image and determining a fixing temperature for the input image based on the toner application amount;

Claims

An image processing apparatus for determining a fixing temperature at the time of printing for an input image,
Calculating means for calculating a toner applied amount for each pixel of the input image;
In the input image, a storage unit to continue to store the representative value of the amount of applied toner of the pixels included in the local area while shifting the local region composed of the size of M × N pixels by a predetermined shift amount in serial憶部,
And determining means for determining a toner applied amount in the entire input image from the representative value stored in the storage unit and determining a fixing temperature for the input image based on the toner applied amount. Image processing device.

The image processing apparatus according to claim 1, wherein a minimum value of toner applied amount of pixels included in the local area is stored in the storage unit as the representative value.

The image processing apparatus according to claim 1, wherein a maximum value among the representative values stored in the storage unit is set as a toner applied amount in the entire input image.

The calculating means, the input image is the case of contone images, according to any one of claims 1 to 3 and calculates the amount of applied toner from the signal values of CMYK, respectively, in pixels of the input image Image processing device.

The calculating means, either the input image for a half-tone image, according to claim 1 to 4, characterized in that for calculating the amount of applied toner from the average concentration of the sum of the CMYK signal values in a pixel of the input image the image processing apparatus according to an item or.

Wherein the storage unit, if the amount of the representative value of one line of the input image is stored in the storage unit, in any one of claims 1 to 5, characterized in that determining a representative value for each line The image processing apparatus described.

The storage means determines a representative value for the predetermined number of lines and stores the representative value for the predetermined number of lines when the representative value for the predetermined number of lines of the input image is stored in the storage unit. the image processing apparatus according to any one of claims 1 to 5, characterized.

A management unit that manages a processing time of processing related to determination of the fixing temperature by the calculation unit, the storage unit, and the determination unit;
When the process related to the determination of the fixing temperature for the input image is not completed within a predetermined processing time, the management unit interrupts the process related to the determination of the fixing temperature for the input image, and the determination unit includes the image processing the image processing apparatus according to any one of claims 1 to 7, characterized in that the determining device is the maximum fixing temperature that can be output as the fixing temperature for the input image.

A determination unit that determines the progress of processing by the calculation unit, the storage unit, and the determination unit for each check point;
Said determination means, based on the processing time and the remaining amount of processing at the elapsed point of the check point, any said storage means according to claim 1 to 7, characterized in that for changing the shift amount for shifting the local area An image processing apparatus according to claim 1.

The image processing apparatus according to claim 9 , wherein the shift amount changed by the determination unit is a shift amount in the sub-scanning direction of the input image.

The image processing apparatus according to claim 10 , wherein the shift amount changed by the determination unit is smaller than N.

The image processing apparatus according to claim 9 , wherein the check point is determined according to a size of the input image.

Wherein N is the size of the local region, the image processing apparatus according to any one of claims 1 to 12, characterized in that it is based on the capacity to store a representative value of the storage unit.

An image input unit for inputting image data;
An image output unit that prints an image on paper based on the image data input by the image input unit;
A fixing unit for fixing unfixed toner on the paper to the paper;
A control unit for setting a fixing temperature when the fixing unit fixes an unfixed toner image on the paper based on the image data input by the image input unit;
A heating control unit that controls heating of the fixing unit based on the fixing temperature set by the control unit;
An image processing apparatus comprising:
The controller is
Calculating the applied toner amount for each pixel of the image data input by the image input unit;
In the image data, while shifting the local region having the size of M × N pixels by a predetermined shift amount, the representative value of the toner applied amount of the pixels included in the local region is stored in the storage unit,
Determining the amount of applied toner in the entire input image from the representative value stored in the storage unit;
Based on the applied toner amount, a fixing temperature for the image data is set,
The heating controller is
An image processing apparatus that performs the heating control based on a fixing temperature set by the control unit.