IP Library Granted Patent US 7,269,385
Granted Patent B2
US 7,269,385 · App. 11/192,266 · Granted Sep 11, 2007

Sheet guide, fixing device and image forming apparatus

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Quick Facts
Patent No.
US 7,269,385
App. No.
11/192,266
Granted
Sep 11, 2007
Kind
B2
Abstract

A sheet guide sheet guide for guiding a recording sheet includes an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 50° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

Claims (28)

1. A sheet guide for guiding a recording sheet, comprising:

an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 50° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

2. The sheet guide according to claim 1 , wherein the outermost surface layer is a coating of a ceramic material.

3. The sheet guide according to claim 2 , wherein the ceramic material includes a metal oxide as a main component.

4. The sheet guide according to claim 2 , wherein the ceramic material includes an aqueous metal salt as a main component.

5. The sheet guide according to claim 1 , wherein the sheet guide is provided beneath the recording sheet.

6. The sheet guide according to claim 1 , wherein the sheet guide is inclined with respect to a horizontal plane at an angle of approximately 20° or more.

7. A sheet guide for guiding a recording sheet, comprising:

an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 20° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

8. The sheet guide according to claim 7 , wherein the outermost surface layer is a coating of a ceramic material.

9. The sheet guide according to claim 8 , wherein the ceramic material includes a metal oxide as a main component.

10. The sheet guide according to claim 8 , wherein the ceramic material includes an aqueous metal salt as a main component.

11. The sheet guide according to claim 7 , wherein the sheet guide is provided beneath the recording sheet.

12. The sheet guide according to claim 7 , wherein the sheet guide is inclined with respect to a horizontal plane at an angle of approximately 20° or more.

13. A fixing device comprising:

an image fixing unit that performs a fixing process on a toner image formed on a recording sheet; and

a sheet guide that guides the recording sheet subjected to the fixing process and exited from the image fixing unit, the sheet guide comprising an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 50° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

14. An image forming apparatus comprising:

an image forming unit that forms a toner image on a recording sheet;

an image fixing unit that performs a fixing process on the toner image formed on the recording sheet; and

a sheet guide that guides the recording sheet subjected to the fixing process and exited from the image fixing unit, the sheet guide comprising an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 50° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

15. A fixing device comprising:

an image fixing unit that performs a fixing process on a toner image formed on a recording sheet; and

a sheet guide that guides the recording sheet subjected to the fixing process and exited from the image fixing unit, the sheet guide comprising an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 20° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

16. An image forming apparatus comprising:

an image forming unit that forms a toner image on a recording sheet;

an image fixing unit that performs a fixing process on the toner image formed on the recording sheet; and

a sheet guide that guides the recording sheet subjected to the fixing process and exited from the image fixing unit, the sheet guide comprising an outermost surface layer brought into contact with a recording sheet, which is formed of a material having a water contact angle of approximately 20° or less and one of a pencil hardness of 9H or more and a Mohs hardness of 4 or more.

Assignments (2)
CHANGE OF NAME Recorded Aug 12, 2021
From: FUJI XEROX CO., LTD.
To: FUJIFILM BUSINESS INNOVATION CORP.
Reel/Frame 058287/0056 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2005
From: KIMURA, KOUICHI; KATSUNO, RYUJI
To: FUJI XEROX CO., LTD.
Reel/Frame 016829/0236 →