Sheet processing device, sheet manufacturing apparatus, and sheet processing method

Patent metadata

Field	Value
Publication number	US-10406834-B2
Application number	US-201816145979-A
Country	US
Kind code	B2
Filing date	Sep 28, 2018
Priority date	Sep 29, 2017
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

A sheet processing device, a sheet manufacturing apparatus, and a sheet processing method enable effectively removing the color material of printed parts. A sheet processing device for processing a printed sheets has a detector configured to detect the printed parts of the sheet; and a refining prevention agent applicator configured to selectively apply a refining prevention agent that prevents refinement of the sheet to a printed area including the printed parts detected by the detector.

First claim

What is claimed is:

1. A sheet processing device that processes a printed sheet, comprising:
a detector configured to detect a printed part printed on the sheet; and
a refining prevention agent applicator configured to selectively apply a refining prevention agent that prevents refinement of the sheet to a printed area including the printed part detected by the detector.

2. The sheet processing device described in claim 1 , further comprising:
a conveyance unit configured to convey the sheet;
the sheet processing device executing at least one of detecting the printed part of the sheet conveyed by the conveyance device, and applying the refining prevention agent to the printed area of the sheet conveyed by the conveyance device.

3. The sheet processing device described in claim 1 , wherein:
the refining prevention agent applicator ejects a liquid containing the refining prevention agent to the printed area.

4. The sheet processing device described in claim 1 , wherein:
the refining prevention agent is hydrophilic.

5. The sheet processing device described in claim 1 , further comprising:
a refining device configured to refine the sheet with the refining prevention agent applied to the printed part,
refinement of the printed area by the refining device being suppressed compared with refinement of areas outside the printed area.

6. The sheet processing device described in claim 5 , further comprising:
a classifier configured to classify refined material acquired by the refining device.

7. The sheet processing device described in claim 1 , further comprising:
a controller configured to control operation of the refining prevention agent applicator based on information detected by the detector.

8. The sheet processing device described in claim 1 , wherein:
the detector has an imaging device configured to image the sheet; and
the controller has a data processor configured to process image data acquired by the imaging device.

9. A sheet manufacturing apparatus comprising a sheet processing device according to claim 1 .

10. A sheet processing method of processing a sheet supplied as feedstock of recycled sheets, comprising:
a detection process of detecting a printed part printed on the sheet; and
a refining prevention agent application process of selectively applying a refining prevention agent that prevents refinement of the sheet to a printed area including the printed part detected by the detection process.

11. The sheet processing method described in claim 10 , further comprising:
a refining process of refining the sheet after the refining prevention agent application process,
refinement of the printed area by the refining process being suppressed compared with refining areas outside the printed area.

12. The sheet processing method described in claim 11 , further comprising:
a classifying process that executes after the after the refining process and classifies refined material acquired by the refining process.

Assignees

• Seiko Epson Corp

Inventors

• Fujii Tatsuya
• Sago Takumi
• Ota Tsukasa
• Yoshioka Satomi

Classifications

• B41M7/0009 Primary

  Obliterating the printed matter; Non-destructive removal of the ink pattern, e.g. for repetitive use of the support · CPC title

• B41J29/26

  Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling · CPC title

• B43L19/0018

  with fluids · CPC title

• G03G15/6573

  Feeding path after the fixing point and up to the discharge tray or the finisher, e.g. special treatment of copy material to compensate for effects from the fixing · CPC title

• B41J11/60 Primary

  Erasing or correcting tables · CPC title