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Image forming apparatus responding to request during use of erasable ink

A technology for images and recording media, applied in the direction of printing devices, electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, etc.

Active Publication Date: 2012-09-26
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the area where the components of ink and toner remain, it is difficult for the ink to penetrate into the sheet at the next image formation, and there is a risk of lowering the image quality.
In addition, for example, when decolorizing an image on a sheet with heat, during the period of repeating image formation and image decolorization on the sheet, the characteristics of the sheet may be changed due to the influence of heat, thereby deteriorating the image quality.

Method used

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  • Image forming apparatus responding to request during use of erasable ink
  • Image forming apparatus responding to request during use of erasable ink
  • Image forming apparatus responding to request during use of erasable ink

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] (1) When forming an image with a printing ratio of 10% by decolorizing ink on an unused sheet p0, the inkjet head 31K will figure 2 A mark M1 shown as a digital code is recorded on the sheet p0. Mark M1 indicates that the printing rate is 10%.

[0032] (2) Afterwards, when the image on the sheet p0 is decolorized, only the mark M1 remains on the sheet p0.

[0033] (3) Next, when the sheet p0 is reused, if an image with a printing ratio of 20% is formed on the sheet p0 on which the mark M1 is recorded by the decolorizing ink, the inkjet head 31K will image 3 The indicated mark M2 is recorded on the sheet p0. Mark M2 indicates that the printing rate is 20%.

[0034] (4) After that, after the image on the sheet p0 is decolorized, the marks M1 and M2 are left on the sheet p0. The marks M1 and M2 indicate that the cumulative printing rate of the sheet p0 in the past was 30%.

[0035] (5) Similarly, every time the sheet p0 is reused, the inkjet head 31K applies the mar...

example 2

[0064] (1) if Figure 7 As shown, the sheet P1 is divided into four regions (A), (B), (C), and (D), for example.

[0065] (2) Every time the sheet P1 is reused, the printing ratios of the respective areas of (A), (B), (C), and (D) are recorded using the QR codes Q1 . . . Qn.

[0066] When printing, the hybrid printer 10 performs printing on each area of ​​the sheet P1 with a process value corresponding to the cumulative printing ratio. In addition, for example, if the cumulative printing ratio of the area (B) is 150% or more, even if the cumulative printing ratios of the other areas (A), (C) and (D) are less than 150%, the sheet P1 is regarded as Unsuitable for reuse and discarded.

[0067] According to the second embodiment, when the sheet P1 is reused, printing is performed by controlling the process value of the hybrid printer 10 for each area of ​​the sheet P1 based on the cumulative printing rate for each area of ​​the sheet P1. Even in the case where the sheet P1 has ...

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PUM

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Abstract

The invention discloses an image forming apparatus responding to request during use of erasable ink and a image forming method. The image forming apparatus includes: a first image forming unit configured to form an image with erasable first ink; a second image forming unit configured to share a conveying path with the first image forming unit and form an image with not erasable second ink; a recording unit configured to record a level of use of a recording medium on the recording medium; a detecting unit configured to detect the level of use; and a control unit configured to control the first image forming unit or the second image forming unit according to a detection result of the detecting unit.

Description

[0001] This application is based on and claims the benefit of and priority from US Provisional Application No. US 61 / 173,099, filed April 27, 2009, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to an image forming apparatus having an image forming unit that forms an image with decolorizing ink (ink), and an image forming unit that forms an image with non-decolorizing ink. Background technique [0003] In recent years, an image forming apparatus that forms an image on a recording medium is provided with an apparatus that decolorizes and reuses an image on a sheet. The reuse of the flakes not only saves paper resources but also benefits the environment. Furthermore, in order to achieve low cost and space saving in an image forming apparatus, an apparatus is provided that performs an image forming process using a decolorizable toner and an image forming process using a normal toner in one device. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/01B41J29/38G03G15/00
CPCG03G15/6588G03G15/104B41J29/393B41J29/38B41J2/355
Inventor 兼古佳明吉田稔渡边猛门孝
Owner KK TOSHIBA