Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus

• US 20060067747A1
• Filed: 09/15/2005
• Published: 03/30/2006
• Est. Priority Date: 09/24/2004
• Status: Abandoned Application

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Tanaka, Atsushi, Sakurai, Yuji, Kusaba, Takashi, Nakazawa, Akihiko, Matsuda, Hidekazu
• Application Number:
  US11/226,241
• Publication Number:
  US 20060067747A1
• Time in Patent Office: Days
• US Class Current: 399/308
• CPC Class Codes: G03G 15/0131 for transferring a pattern to a second base
• CPC Class Codes: G03G 15/1685 Structure, details of the transfer member, e.g. chemical composition
• CPC Class Codes: G03G 2215/0119 Linear arrangement adjacent plural transfer points
• CPC Class Codes: G03G 2215/0177 Rotating set of developing units
• CPC Class Codes: G03G 2215/1623 Transfer belt
• CPC Class Codes: Y10T 428/1352 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/31725 Of polyamide

Abstract

An electrophotographic endless belt which contains a polyamide resin and an additive A comprising at least one selected from the group consisting of copper(I) iodide, potassium iodide, copper(I) chloride and potassium chloride, and has a volume resistivity of from 1×10⁶ to 1×10¹⁴ Ωcm. Also disclosed are a process for producing the electrophotographic endless belt and an electrophotographic apparatus having the electrophotographic endless belt.

Claims

1. An electrophotographic endless belt comprising a polyamide resin and an additive A,

wherein said additive A is at least one selected from the group consisting of copper(I) iodide, potassium iodide, copper(I) chloride and potassium chloride, and

said electrophotographic endless belt has a volume resistivity of from 1×

10⁶ to 1×

10¹⁴ Ω

cm.

2. The electrophotographic endless belt according to claim 1, wherein said additive A in said electrophotographic endless belt is in a content of from 0.01% by weight to 1% by weight based on the total weight of said polyamide resin and said additive A.

3. The electrophotographic endless belt according to claim 1, which further comprises a particulate conducting agent.

4. The electrophotographic endless belt according to claim 1, which further comprises polyglycerol poly-ricinolate or polyglycerol stearate.

5. The electrophotographic endless belt according to claim 3, wherein at least one of said particulate conducting agent is carbon black.

6. A process for producing an electrophotographic endless belt which comprises a polyamide resin, carbon black and an additive A comprising at least one selected from the group consisting of copper(I) iodide, potassium iodide, copper(I) chloride and potassium chloride, and has a volume resistivity of from 1×

10⁶ to 1×

10¹⁴ Ω

cm;

said process comprising the step of mixing said polyamide resin, said carbon black and said additive A before said polyamide resin and said carbon black are compounded.

7. An electrophotographic apparatus having an electrophotographic endless belt, said electrophotographic endless belt comprising a polyamide resin and an additive A;

wherein said additive A is at least one selected from the group consisting of copper(I) iodide, potassium iodide, copper(I) chloride and potassium chloride, and

said electrophotographic endless belt has a volume resistivity of from 1×

10⁶ to 1×

10¹⁴ Ω

cm.

8. The electrophotographic apparatus according to claim 7, wherein said electrophotographic endless belt is a transfer material transporting belt.

9. The electrophotographic apparatus according to claim 7, wherein said electrophotographic endless belt is an intermediate transfer belt.