Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reading apparatus, image forming system, and non-transitory computer-readable storage medium storing control program for performing accurate colorimetry

a colorimetric and reading machine technology, applied in the direction of optical radiation measurement, instruments, spectrophotometry/monochromators, etc., can solve the problem of inaccurate colorimetry and achieve the effect of high temperature and high accuracy

Inactive Publication Date: 2020-06-18
KONICA MINOLTA INC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a reading apparatus that has a cooling system to quickly cool a sheet of material and lower it to temperature of 30 degrees or less before performing colorimetry. This allows for accurate and stable colorinetry without being affected by thermochromism. Additionally, the apparatus includes a guide plate that ensures high positional accuracy in the vertical direction. These features improve the performance and accuracy of the reading apparatus.

Problems solved by technology

Accordingly, even if color on the sheet in such a state is measured, since the state is different from a state where a user visually observes (that is, a room temperature), color measurement may not be performed accurately.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reading apparatus, image forming system, and non-transitory computer-readable storage medium storing control program for performing accurate colorimetry
  • Reading apparatus, image forming system, and non-transitory computer-readable storage medium storing control program for performing accurate colorimetry
  • Reading apparatus, image forming system, and non-transitory computer-readable storage medium storing control program for performing accurate colorimetry

Examples

Experimental program
Comparison scheme
Effect test

second and third embodiments

[0120]In the reading apparatus 102 of the first embodiment shown in FIG. 1 to FIG. 12, the first guide plate 471 with which a sheet S is brought in contact by being urged by the first opposite member 81, is provided to over the entire conveyance region of a sheet in the width direction, and the first guide plate 471 is a part of the guide on the upstream side than the colorimetry region al of the reading apparatus 102 in the conveyance direction.

[0121]On the contrary, in the second embodiment described below, a first guide plate 475 is provided to only a part of the region in the width direction. In the third embodiment, a first guide plate 478 is provided over the entire region of the sheet conveyance region of a sheet in the width direction, and the first guide plate 478 is all of the guide on the upstream side than the colorimetry region al of the reading apparatus 102 in the conveyance direction.

[0122]Hereinafter, with reference to FIG. 16 through FIG. 18, the second embodiment ...

modified example

[0130]The above-described embodiments intend to exemplify the summary of the present invention, and, does not intend to limit the present invention. Many substitutes, revisions, and modifications are clear for a person skilled in the art. For example, the modified examples described below may be applied to the first to third embodiments.

first modified example

[0131]FIG. 20 is an illustration showing the constitution of the periphery of the first guide plate 471 according to the first modified example. In the example shown in FIG. 20, to the surface of the first guide plate 471 opposite to the reference surface r1, cooling fins 490 for cooling of the first guide plate 471 are attached with adhesives with high heat conductivity. When the first guide plate 471 cools a sheet S, even if its temperature rises with heat taken from the sheet S, it becomes possible to lower the temperature to near the room temperature immediately with the cooling fins 490. In this connection, the cooling fins 490 may be applied to the first guide plate in the second and third embodiments. Moreover, in place of the cooling fin 490, or together with the cooling fin 490, a cooling fan may be adopted.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
temperatureaaaaaaaaaa
heat conductivityaaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

A reading apparatus that performs colorimetry for an image on a sheet, includes a conveyor that conveys the sheet along a conveyance path; a first guide member that includes a reference surface arranged to face the conveyance path and to oppose the sheet and provided with an opening, and, guides the sheet; a first opposite member that urges the sheet toward the reference surface, and, brings the sheet in contact with the reference surface; a colorimetry unit that is disposed at a side opposite to the conveyance path so as to sandwich the first guide member, and, performs colorimetry for the image through the opening; and a processor that controls the conveyor and the first opposite member so as to convey the sheet in a state of being brought in contact with the reference surface, before the colorimetry unit performs colorimetry for the image.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application is a continuation of U.S. patent application Ser. No. 15 / 939,773, filed on Mar. 29, 2018, which claims priority to Japanese Patent Application No. 2017-067975 filed on Mar. 30, 2017, the entire contents of U.S. Ser. No. 15 / 939,773 and JP 2017-067975 are incorporated herein by reference.BACKGROUND1. Technical Field[0002]The present invention relates to a reading apparatus, an image forming system, and a non-transitory computer-readable storage medium storing a control program.2. Description of Related Arts[0003]In recent years, in the color printing industry, in place of conventional offset-printing apparatuses, image forming apparatuses, such as a printer of an electrophotographic system, have been utilized widely.[0004]In such an image forming apparatus, in order to attain stabilization of image density, there is an image forming apparatus that disposes an optical sensor on a conveyance path of a sheet, detects a s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): H04N1/00G01N21/27H04N1/60G01J3/50
CPCH04N1/00615G01J3/524G01J3/50H04N1/00602H04N1/6033H04N1/00034G01N21/274H04N1/00045H04N1/00989H04N1/00087G03G15/5062G03G15/6529H04N1/50
Inventor XU, TIANZI
Owner KONICA MINOLTA INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com