Sheet processing device, laminator, image forming apparatus, and image forming system

Patent metadata

Field	Value
Publication number	US-11269280-B2
Application number	US-202117316899-A
Country	US
Kind code	B2
Filing date	May 11, 2021
Priority date	May 13, 2020
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A sheet processing device inserts a sheet-shaped medium into a two-ply sheet in which two sheets are overlaid and partially bonded. The sheet processing device includes control circuitry to execute a single insertion mode in which one sheet-shaped medium is inserted into the two-ply sheet and a multiple insertion mode in which a plurality of sheet-shaped media are inserted into the two-ply sheet along a conveyance direction. The control circuitry inserts the one sheet-shaped medium into the two-ply sheet in the single insertion mode and the plurality of sheet-shaped media into the two-ply sheet in the multiple insertion mode, with the two-ply sheet being stopped.

First claim

The invention claimed is:

1. A sheet processing device configured to insert a sheet-shaped medium into a two-ply sheet in which two sheets are overlaid and partially bonded, the sheet processing device comprising:
control circuitry configured to execute:
a single insertion mode in which one sheet-shaped medium is inserted into the two-ply sheet; and
a multiple insertion mode in which a plurality of sheet-shaped media are inserted into the two-ply sheet along a conveyance direction;

wherein the control circuitry is configured to:
cause the one sheet-shaped medium to be inserted into the two-ply sheet with the two-ply sheet being stopped in the single insertion mode; and
cause the plurality of sheet-shaped media to be inserted into the two-ply sheet with the two-ply sheet being stopped in the multiple insertion mode.

2. The sheet processing device according to claim 1 ,
wherein the control circuitry is configured to correct a skew of the sheet-shaped medium by pushing the sheet-shaped medium against the two-ply sheet being stopped.

3. The sheet processing device according to claim 1 ,
wherein the control circuitry is configured to automatically switch to the multiple insertion mode when a length of the sheet-shaped medium in the conveyance direction is half or less of a length of the two-ply sheet in the conveyance direction.

4. The sheet processing device according to claim 1 , further comprising:
a first loader configured to load the two-ply sheet;
a sheet size detector configured to detect a length of the two-ply sheet in the conveyance direction;
a second loader configured to load the sheet-shaped medium; and
a medium size detector configured to detect a length of the sheet-shaped medium in the conveyance direction,
wherein the control circuitry is configured to automatically switch to the multiple insertion mode when the length of the sheet-shaped medium in the conveyance direction is half or less of the length of the two-ply sheet in the conveyance direction.

5. The sheet processing device according to claim 1 , further comprising a display-and-operation device,
wherein the display-and-operation device is configured to allow a user to select either the single insertion mode or the multiple insertion mode.

6. The sheet processing device according to claim 1 , further comprising:
a rotator; and
a conveyor configured to convey the two-ply sheet to the rotator,
wherein the control circuitry is configured to cause the conveyor to wind the two sheets of the two-ply sheet onto the rotator to generate a difference in length at which the two sheets are wound around a circumference of the rotator and separate the two sheets of the two-ply sheet.

7. A laminator comprising:
the sheet processing device according to claim 1 ; and
a heat pressing member configured to heat and press the two-ply sheet.

8. An image forming apparatus comprising:
an image forming device configured to form an image on the sheet-shaped medium; and
the sheet processing device according to claim 1 .

9. An image forming system comprising:
an image forming apparatus; and
the sheet processing device according to claim 1 .

10. The image forming system according to claim 9 ,
wherein the sheet processing device is removably attached to the image forming apparatus.

Assignees

• Ricoh Co Ltd

Inventors

• Takahashi Wataru
• Furuhashi Tomohiro
• Asano Sho
• Suzuki Yoshito
• Monma Shinya
• Akiyama Joji
• HARAGUCHI Yohsuke
• Nozaki Wataru

Classifications

• B29C63/0065

  Heat treatment · CPC title

• B29C63/0004 Primary

  Component parts, details or accessories; Auxiliary operations · CPC title

• B65H41/00

  Machines for separating superposed webs · CPC title

• G03G15/5054

  by measuring the characteristics of an intermediate image carrying member or the characteristics of an image on an intermediate image carrying member, e.g. intermediate transfer belt or drum, conveyor belt · CPC title

• B65H43/00

  Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable · CPC title