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Test print, color image printer and method for adjusting the color image printer

A color image and test page technology, applied in image communication, printing equipment, printing equipment, etc., can solve the problem of no pass

Inactive Publication Date: 2011-04-13
NORITSU PRECISION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, so far there has been no technical idea of ​​outputting a printed test page that controls the modulation of the laser light and adjusting the control of the exposure engine based on the information obtained by measuring such a printed test page. Consider the concentration difference between the horizontal line and the vertical line caused by the error

Method used

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  • Test print, color image printer and method for adjusting the color image printer
  • Test print, color image printer and method for adjusting the color image printer
  • Test print, color image printer and method for adjusting the color image printer

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Embodiment Construction

[0038] Embodiments of the present invention will be described below based on the drawings.

[0039] FIG. 1 shows the appearance of a color image printer, that is, a photo printing device, using the gradation correction method of the present invention, and FIG. 2 shows its schematic diagram. This photo printing apparatus is composed of a printing station (Print station) 1B and an operating station (Operating station) 1A, wherein the above-mentioned printing station 1B is for silver salt printing paper P (hereinafter referred to as printing paper) as an example of a recording medium. Paper P) A photo printer for exposure processing and development processing, and the above-mentioned operation station 1A is used to generate and transfer print data used by the printing station 1B. The photo printing device is also called a digital printing machine (Digital Minilab). As can be seen from FIG. 2 , the printing station 1B pulls out one of the roll-shaped printing papers P placed in t...

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Abstract

The invention provides a test print, a color image printer using the test print and a method for adjusting the color image printer using the test print. The color image printer comprises a print engine for executing laser scanning exposure and a test print managing section for managing control for outputting a test print through the print engine for use in image quality adjustment. The test printincludes a plurality of sets of horizontal stripe test patterns horizontal stripe test a plurality of horizontal lines extending in the main scanning direction and a plurality of sets of vertical stripe test patterns horizontal stripe test a plurality of vertical lines extending in the sub scanning direction. And, the horizontal lines are formed with a gradation value set in advance for each horizontal stripe test pattern. The vertical lines are formed with a gradation value set in advance for each vertical stripe test pattern.

Description

technical field [0001] The present invention relates to a gradation correction technique in a color image printer (color photo printer) for forming images on photosensitive materials by laser scanning exposure, especially relates to the adjustment of dots. Background technique [0002] Currently, in the field of photoprinting, mainstream color image printers perform image processing such as density correction and color correction on captured image data, convert it into print data, and drive an exposure engine based on the print data. A color image printer that prints a photographed image on a photosensitive material (photographic paper), wherein the above-mentioned photographed image data is: the photographed image data obtained by digitizing the photographed image formed on a photographic film by a film scanner; The captured image data obtained by directly digitally processing the captured images with digital photographic equipment such as digital cameras. In such a color ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B27/32G03B27/73
CPCH04N1/4078
Inventor 西原猛大木洋造乡间达司石井智之山本卓也
Owner NORITSU PRECISION CO LTD
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