Claims
- 1. A cleaning blade for press contacting a surface of an electrostatically charged latent image support to remove toner remaining on the surface, said cleaning blade comprising an elongated blade body having a rubber elasticity and a coating layer, said coating layer covering at least a contacting portion of the blade body for press contacting the surface of the latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, wherein said coating layer comprises lubricating particles and a binder resin, said binder resin having a tensile modulus of elasticity of 10.sup.4 kg/cm.sup.2 or less and an attrition loss of 0.1 to 10 mg.
- 2. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a modulus of elasticity of 10 to 10 kg/cm.sup.2.
- 3. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a modulus of elasticity of 20 to 100 kg/cm.sup.2.
- 4. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a compression set of not more than 20%.
- 5. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a compression set of 1 to 10%.
- 6. The cleaning blade for electrophotography according to claim 1, wherein said blade body comprises a material selected from the group consisting of urethane rubber, silicone rubber, nitrile rubber and chloroprene rubber.
- 7. The cleaning blade for electrophotography according to claim 1, wherein said blade body comprises urethane rubber.
- 8. The cleaning blade for electrophotography according to claim 7, wherein said urethane rubber comprises a two-pot type, thermo-settable polyurethane rubber.
- 9. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a hardness of 40.degree. to 90.degree..
- 10. The cleaning blade for electrophotography according to claim 1, wherein said blade body has a hardness of 50.degree. to 80.degree..
- 11. The cleaning blade for electrophotography according to claim 1, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.5 kg/cm.sup.2.
- 12. The cleaning blade for electrophotography according to claim 1, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 13. The cleaning blade for electrophotography according to claim 1, wherein said binder resin comprises polyamide resin.
- 14. The cleaning blade for electrophotography according to claim 1, wherein said binder resin comprises a cross-linked polyamide resin.
- 15. The cleaning blade for electrophotography according to claim 14, wherein said cross-linked polyamide resin is self-cross-linkable.
- 16. The cleaning blade for electrophotography according to claim 14, wherein said cross-linked polyamide resin contains a cross-linking agent.
- 17. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles comprise a solid lubricating agent.
- 18. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles comprise a material selected from the group consisting of graphite fluoride, fluorocarbon resin, silicone resin and polyamide resin.
- 19. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles are in an irregular shape.
- 20. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles comprise graphite fluoride.
- 21. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles have an average particle size of 0.1 to 5 .mu.m.
- 22. The cleaning blade for electrophotography according to claim 1, wherein said lubricating particles are in an amount of 5 to 50 parts by weight on the basis of 100 parts by weight of the binder resin.
- 23. The cleaning blade for electrophotography according to claim 1, wherein said coating layer contains the lubricating particles dispersed in the binder resin.
- 24. The cleaning blade for electrophotography according to claim 1, wherein said coating layer has a surface roughness of 0.05 to 5 .mu.m.
- 25. The cleaning blade for electrophotography according to claim 1, wherein said coating layer has a thickness of 1 to 100 .mu.m.
- 26. The cleaning blade for electrophotography according to claim 1, wherein said coating layer has a thickness of 5 to 30 .mu.m.
- 27. The cleaning blade for electrophotography according to claim 1, wherein said coating layer is formed on the surface of the blade body by application of a solution mixture comprising the binder resin, the lubricating particles and a solvent selected from the group consisting of an alcoholic solvent, a chlorinic solvent, a ketonic solvent, an esteral solvent, and their mixtures, and water.
- 28. The cleaning blade for electrophotography according to claim 1, wherein said coating layer has a frictional coefficient of 0.01 to 1.5.
- 29. The cleaning blade for electrophotography according to claim 1, wherein said coating layer has a frictional coefficient of 0.1 to 0.6.
- 30. A cleaning device for electrophotography, comprising a cleaning blade for press contacting a surface of an electrostatically charged latent image support to remove toner remaining on the surface, said cleaning blade comprising an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contacting portion of said elongated blade body for press contacting the surface of the latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, wherein said coating layer comprises lubricating particles and a binder resin, said binder resin having a tensile modulus of elasticity of 10.sup.4 kg/cm.sup.2 or less and an attrition loss of 0.1 to 10 .mu.g.
- 31. The cleaning device for electrophotography according to claim 30, wherein said coating layer has a frictional coefficient of 0.1 to 0.6.
- 32. The cleaning device for electrophotography according to claim 30, wherein said cleaning blade has a coating layer comprising graphite fluoride and polyamide resin on the surface of the blade body of polyurethane resin.
- 33. An apparatus unit which is detachable from an apparatus body, comprising:
- an electrostatically charged latent image support for supporting electrostatically charged latent images; and
- cleaning means comprising a cleaning blade for press contacting a surface of said electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contacting portion of the blade body for press contacting the surface of the latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, and wherein said coating layer comprises lubricating particles and a binder resin, said binder resin having a tensile modulus of elasticity of 10.sup.4 kg/cm.sup.2 or less and an attrition loss of 0.1 to 10 mg.
- 34. The apparatus unit according to claim 33, wherein said coating layer has a frictional coefficient of 0.1 to 0.6.
- 35. The apparatus unit according to claim 33, wherein said cleaning blade has the coating layer comprising graphite fluoride and polyamide resin on the surface of the blade body of polyurethane resin.
- 36. An electrophotographic apparatus comprising:
- an electrostatically charged latent image support for supporting electrostatically charged latent images;
- charging means for charging said electrostatically charged latent image support;
- latent image-forming means for forming electrostatically charged latent images on the electrostatically charged latent image support;
- developing means for developing electrostatically charged latent images supported on said electrostatically charged latent image support; and
- cleaning means comprising a cleaning blade for press contacting a surface of said electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contact surface of the blade body for press contacting the surface of the latent image support, said contact surface extending substantially parallel to an axis of the latent image support, said coating layer comprising lubricating particles and a binder resin, said binder resin having a tensile modulus of elasticity of 10.sup.4 kg /cm.sup.2 or less and an attrition loss of 0.1 to 10 mg.
- 37. The electrophotographic apparatus according to claim 36, wherein said coating layer has a frictional coefficient of 0.1 to 0.6.
- 38. The electrophotographic apparatus according to claim 36, wherein said cleaning blade has the coating layer comprising graphite fluoride and polyamide resin on the surface of the blade body of polyurethane resin.
- 39. A facsimile apparatus comprising:
- an electrophotographic apparatus; and
- receiving means for receiving image information from a remote terminal,
- wherein said electrophotographic apparatus comprises:
- an electrostatically charged latent image support for supporting electrostatically charged latent images;
- charging means for charging said electrostatically charged latent image support;
- latent image-forming means for forming electrostatically charged latent images on said electrostatically charged latent image support;
- developing means for developing the electrostatically charged latent images supported on said electrostatically charged latent image support; and
- cleaning means comprising a cleaning blade for press contacting a surface of said electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contact surface of the blade body for press contacting the surface of the latent image support, said contact surface extending substantially parallel to an axis of the latent image support, said coating layer comprising lubricating particles and a binder resin, said binder resin having a tensile modulus of elasticity of 10.sup.4 kg/cm.sup.2 or less and an attrition loss of 0.1 to 10 mg.
- 40. The facsimile apparatus according to claim 39, wherein said coating layer has a frictional coefficient of 0.1 to 0.6.
- 41. The facsimile apparatus according to claim 39, wherein said cleaning blade has the coating layer comprising graphite fluoride and polyamide resin on the surface of the blade body of polyurethane resin.
- 42. The cleaning blade for electrophotography according to claim 1, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 43. The cleaning device for electrophotography according to claim 30, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 44. The apparatus unit according to claim 33, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 45. The electrophotographic apparatus according to claim 36, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 46. The facsimile apparatus according to claim 39, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 47. The cleaning blade comprising claim 1, wherein the lubricating particles protrude from the binder resin on the contacting portion of the coating layer.
- 48. The cleaning blade for electrophotography according to claim 47, wherein said coating layer has a net frictional coefficient of 0.1 to 0.6.
- 49. The cleaning blade for electrophotography according to claim 47, wherein said coating layer comprises graphite fluoride and polyamide resin and the surface of the blade body comprises polyurethane resin.
- 50. The cleaning blade for electrophotography according to claim 47, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 51. The cleaning device comprising claim 30, wherein the lubricating particles protrude from the binder resin on the contacting portion of the coating layer.
- 52. The cleaning device for electrophotography according to claim 51, wherein said coating layer has a net frictional coefficient of 0.1 to 0.6.
- 53. The cleaning device for electrophotography according to claim 51, wherein said coating layer comprises graphite fluoride and polyamide resin and the surface of the blade body comprises polyurethane resin.
- 54. The cleaning device for electrophotography according to claim 51, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 55. The apparatus unit according to claim 33, wherein the lubricating particles protrude from the binder resin on the contacting portion of the coating layer.
- 56. The apparatus unit according to claim 55, wherein said coating layer has a net frictional coefficient of 0.1 to 0.6.
- 57. The apparatus unit according to claim 55, wherein said coating layer comprises graphite fluoride and polyamide resin and the surface of the blade body comprises polyurethane resin.
- 58. The apparatus unit according to claim 55, wherein said body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 59. The electrophotographic apparatus according to claim 36, wherein the lubricating particles protrude from the binder resin on the contact surface of the coating layer.
- 60. The electrophotographic apparatus according to claim 59, wherein said coating layer has a net frictional coefficient of 0.1 to 0.6.
- 61. The electrophotographic apparatus according to claim 59, wherein said coating layer comprises graphite fluoride and polyamide resin and the surface of the blade body comprises polyurethane resin.
- 62. The electrophotographic apparatus according to claim 59, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 63. The facsimile apparatus according to claim 39, wherein the lubricating particles protrude from the binder resin on the contacting portion of the coating layer.
- 64. The facsimile apparatus according to claim 63, wherein said coating layer has a net frictional coefficient of 0.1 to 0.6.
- 65. The facsimile apparatus according to claim 63, wherein said coating layer comprises graphite fluoride and polyamide resin and the surface of the blade body comprises polyurethane resin.
- 66. The facsimile apparatus according to claim 63, wherein said blade body comprises urethane rubber and said coating layer comprises lubricating particles comprising graphite fluoride and a binder resin comprising a polyamide resin.
- 67. A cleaning blade for press contacting a surface of an electrostatically charged latent image support to remove toner remaining on the surface, said cleaning blade comprising an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contacting portion of the blade body for press contacting the surface of the electrostatically charged latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, wherein said coating layer comprises lubricating particles and a binder resin comprising a polyamide resin.
- 68. A cleaning device for electrophotography, comprising a cleaning blade for press contacting a surface of an electrostatically charged latent image support to remove toner remaining on the surface, said cleaning blade comprising an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contacting portion of the blade body for press contacting the surface of the latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, wherein said coating layer comprises lubricating particles and a binder resin, said binder resin comprising a polyamide resin.
- 69. An apparatus unit which is detachable from an apparatus body, comprising:
- an electrostatically charged latent image support for supporting electrostatically charged latent images; and
- cleaning means comprising a cleaning blade for press contacting a surface of said electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contacting portion of the blade body for press contacting the surface of the latent image support, said contacting portion extending substantially parallel to an axis of the latent image support, and wherein said coating layer comprises lubricating particles and a binder resin, said binder resin comprising a polyamide resin.
- 70. An electrophotographic apparatus comprising:
- an electrostatically charged latent image support for supporting electrostatically charged latent images;
- charging means for charging said electrostatically charged latent image support;
- latent image-forming means for forming electrostatically charged latent images on the electrostatically charged latent image support;
- developing means for developing electrostatically charged latent images supported on said electrostatically charged latent image support; and
- cleaning means comprising a cleaning blade for press contacting a surface of said electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contact surface of the blade body for press contacting the surface of the latent image support, said contact surface extending substantially parallel to an axis of the latent image support, said coating layer comprising lubricating particles and a binder resin, said binder resin comprising a polyamide resin, and
- wherein the lubricating particles are directly exposed from the binder resin on the contact surface of the coating layer with said electrostatically charged latent image support.
- 71. A facsimile apparatus comprising:
- an electrophotographic apparatus; and
- receiving means for receiving image information from a remote terminal;
- wherein said electrophotographic apparatus comprises:
- an electrostatically charged latent image support for supporting electrostatically charged latent images;
- charging means for charging said electrostatically charged latent image support;
- latent image-forming means for forming electrostatically charged latent images on said electrostatically charged latent image support;
- developing means for developing the electrostatically charged latent images supported on said electrostatically charged latent image support; and
- cleaning means comprising a cleaning blade for press contacting a surface of the electrostatically charged latent image support to remove toner remaining on the surface,
- wherein said cleaning blade comprises an elongated blade body having a rubbery elasticity and a coating layer, said coating layer covering at least a contact surface of the blade body for press contacting the surface of the latent image support, said contact surface extending substantially parallel to an axis of the latent image support, said coating layer comprising lubricating particles and a binder resin, said binder resin comprising a polyamide resin.
- 72. The cleaning blade for electrophotography according to claim 1, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 73. The cleaning blade for electrophotography according to claim 1, wherein said binder resin has a frictional coefficient of 0.5 to 2.5.
- 74. The cleaning blade for electrophotography according to claim 47, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 75. The cleaning blade for electrophotography according to claim 47, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 76. The cleaning device for electrophotography according to claim 30, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 77. The cleaning device for electrophotography according to claim 30, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 78. The cleaning device for electrophotography according to claim 30, wherein said binder resin has a frictional coefficient of 0.5 to 2.5.
- 79. The cleaning device for electrophotography according to claim 51, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 80. The cleaning device for electrophotography according to claim 51, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 81. The apparatus unit according to claim 33, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 82. The apparatus unit according to claim 33, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 83. The apparatus unit according to claim 33, wherein said binder resin has a frictional coefficient of 0.5 to 2.5.
- 84. The apparatus unit according to claim 55, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 85. The apparatus unit according to claim 55, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 86. The electrophotographic apparatus according to claim 33, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 87. The electrophotographic apparatus according to claim 33, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 88. The electrophotographic apparatus according to claim 33, wherein said binder resin has a frictional coefficient of 0.5 to 2.5.
- 89. The electrophotographic apparatus according to claim 55, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 90. The electrophotographic apparatus according to claim 55, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 91. The facsimile apparatus according to claim 34, wherein said binder resin has a tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 92. The facsimile apparatus according to claim 39, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
- 93. The facsimile apparatus according to claim 39, wherein said binder resin has a frictional coefficient of 0.5 to 2.5.
- 94. The facsimile apparatus according to claim 63, wherein said binder resin has tensile modulus of elasticity of 10 to 10.sup.4 kg/cm.sup.2.
- 95. The facsimile apparatus according to claim 63, wherein said binder resin has a tensile modulus of elasticity of 10.sup.2 to 10.sup.4 kg/cm.sup.2.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2-150214 |
Jun 1990 |
JPX |
|
3-017642 |
Feb 1991 |
JPX |
|
Parent Case Info
This application is a continuation of prior application Ser. No. 07/710,772 filed Jun. 5, 1991, now abandoned.
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Date |
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0384354 |
Aug 1990 |
EPX |
49-011704 |
Feb 1974 |
JPX |
57-064277 |
Apr 1982 |
JPX |
59-052273 |
Feb 1984 |
JPX |
59-052273 |
Mar 1984 |
JPX |
61-255375 |
Nov 1986 |
JPX |
62-102271 |
May 1987 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
710772 |
Jun 1991 |
|