PEELING GUIDE AND IMAGE FORMING APPARATUS

• US 20180210378A1
• Filed: 01/26/2017
• Published: 07/26/2018
• Est. Priority Date: 01/26/2017
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Tec Corporation (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Tec Corporation (Toshiba Corporation)
• Inventors: KUNUGI, Hiroyuki, YAMAZOE, Atsushi, NAKAMURA, Junichi
• Application Number:
  US15/416,122
• Publication Number:
  US 20180210378A1
• Time in Patent Office: Days
• CPC Class Codes: G03G 15/2025 with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
• CPC Class Codes: G03G 15/2028 with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means

Abstract

A peeling guide of an embodiment includes a peeling claw that comes into contact with a rotating body conveying a recording medium and separates the recording medium from the rotating body. The peeling claw including a lubricant application portion that is in contact with the rotating body and to which a lubricant is applied.

Claims

1. A peeling guide comprising:

a peeling claw that comes into contact with a rotating body for heating and conveying a recording medium, the peeling claw shaped and positioned to separate the recording medium from the rotating body, the peeling claw including a lubricant application portion to which a lubricant is applied and a tip that is in contact with the rotating body, wherein the lubricant application portion has a surface with a surface roughness value that maximizes adhesion of the lubricant to the lubricant application portion.

2. The guide according to claim 1,

wherein the lubricant is a dry film lubricant.

3. The guide according to claim 2,

wherein the dry film lubricant is a volatile type lubricant.

4. The guide according to claim 2,

wherein the dry film lubricant is a fluorine-based lubricant.

5. The guide according to claim 1,

wherein the surface roughness is formed in the portion of the peeling claw that is in contact with the rotating body.

6. The guide according to claim 5,

wherein the surface roughness is not less than Ra 1.0 μ

m and not greater than Ra 2.0 μ

m.

7. The guide according to claim 1,

wherein a material of the peeling claw is PFA.

8. The guide according to claim 1,

wherein the lubricant application portion is located outside of the conveying path of a recording media.

9. The guide according to claim 1,

wherein ribs are formed in the lubricant application portion.

10. The guide according to claim 1,

wherein the interval between any two adjacent ribs have the same size.

11. An image forming apparatus comprising:

an image forming device that forms an image on a recording medium;

a fixing device that has a heated rotating body and a pressing rotating body and fixes the image that is formed on the recording medium by the image forming unit, to the recording medium; and

a peeling claw that has a tip portion that comes into contact with the heated rotating body and a lubricant application portion to which a lubricant is applied, wherein the lubricant application portion has a surface with a surface roughness value that maximizes adhesion of the lubricant to the lubricant application portion.

12. The apparatus according to claim 11,

wherein the lubricant is a dry film lubricant.

13. The guide according to claim 12,

wherein the dry film lubricant is a volatile type lubricant.

14. The apparatus according to claim 12,

wherein the dry film lubricant is a fluorine-based lubricant.

15. The apparatus according to claim 11,

wherein the surface roughness is formed in the contact portion where the lubricant is applied.

16. The apparatus according to claim 15,

wherein the surface roughness is not less than Ra 1.0 μ

m and not greater than Ra 2.0 μ

m.

17. The apparatus according to claim 11,

wherein a material of the peeling claw is PFA.

18. The apparatus according to claim 11,

wherein the contact portion where the lubricant is applied is located outside of the conveying path of a recording media.

19. The apparatus according to claim 11,

wherein ribs are formed in the contact portion.

20. The apparatus according to claim 11,

wherein the interval between any two adjacent ribs have the same size.