公开(公告)号：JP2002082463A

公开(公告)日：2002-03-22

申请号：JP2000273950

申请日：2000-09-08

Applicant: CANON KK

Inventor： KARAKI TETSUYA ,  KAWADA MASAYA ,  OWAKI HIRONORI ,  KAWAMURA KUNIMASA ,  EBARA TOSHIYUKI ,  YAMAZAKI KOJI

IPC: G03G5/08 ,  G03G5/10

Abstract: PROBLEM TO BE SOLVED: To provide a photoreceptor and an image forming device in which melt sticking of toner during cleaning is prevented and formation of good images is maintained. SOLUTION: In the electrophotographic photoreceptor produced by successively laminating a photoconductive layer 102 containing amorphous Si and a surface protective layer 103 consisting of an amorphous material on a conductive substrate 101, the refractive index is stepwise or continuously varied between the photoconductive layer 102 and the surface layer 103. The center line average roughness Ra1 on the interface of the photoconductive layer in the surface side in 10 μm×10 μm area and the center line average roughness Ra2 of the outermost surface of the surface layer are controlled to satisfy Ra1/Ra2>=1.1 and 22

公开(公告)号：JP2002006703A

公开(公告)日：2002-01-11

申请号：JP2000186858

申请日：2000-06-21

Applicant: CANON KK

Inventor： OWAKI HIRONORI ,  EBARA TOSHIYUKI ,  KAWAMURA KUNIMASA ,  KARAKI TETSUYA ,  KAWADA MASAYA

IPC: G03G15/02 ,  G03G5/08 ,  G03G15/04 ,  G03G21/08

Abstract: PROBLEM TO BE SOLVED: To reduce the density variance of an output image to provide the output image of higher quality by reducing the potential variance of photoreceptor while keeping the level of a ghost. SOLUTION: When a corona electrifier is used as an electrifying means, the polarities of electrification of the photoreceptor and the electrifying means are negative, and the light quantity of discharge light is >=0.8 and =0.5 and

公开(公告)号：JP2001330978A

公开(公告)日：2001-11-30

申请号：JP2000150140

申请日：2000-05-22

Applicant: CANON KK

Inventor： KAWAMURA KUNIMASA ,  EBARA TOSHIYUKI ,  KARAKI TETSUYA ,  OWAKI HIRONORI ,  KAWADA MASAYA

IPC: G03G5/08

Abstract: PROBLEM TO BE SOLVED: To provide a Si photoreceptor and a device for image formation in which sticking of toner during cleaning is prevented and good image formation is realized. SOLUTION: A photoconductive layer 302 containing a-Si is formed on a conductive substrate 301 having

公开(公告)号：JP2001318480A

公开(公告)日：2001-11-16

申请号：JP2000136010

申请日：2000-05-09

Applicant: CANON KK

Inventor： YAMAZAKI KOJI ,  KAWADA MASAYA ,  EBARA TOSHIYUKI ,  KARAKI TETSUYA ,  OWAKI HIRONORI ,  KAWAMURA KUNIMASA

IPC: G03G5/08 ,  B24B21/02 ,  G03G5/10

Abstract: PROBLEM TO BE SOLVED: To provide a post-processing method for an electrophotographic photoreceptor which is capable of polishing the abnormally grown projections generated on the surface of the a-Si base photoreceptor to a flat or reference line or below without flawing other good segments. SOLUTION: A polishing device having a supporting mechanism 120 for holding and rotating the a-Si photoreceptor 100, an elastic pressurizing roller 130 which is wound with a polishing tape 131 and presses this tape to the surface of the photoreceptor 100 and delivery rolls 132 and 134 for sending the polishing tape 131, etc., is used and when the surface projections of the photoreceptor 100 are flattened and polished by sending the polishing tape 131 while bringing the surfaces of the polishing tape 131 and the photoreceptor 100 into abutment on each other under pressurization, the advance and retreat positions of the photoreceptor 100 with respect to the elastic roller 130 are controlled according to the feed speed of the polishing tape 131 by a photoreceptor position control means 137.

公开(公告)号：JP2001318479A

公开(公告)日：2001-11-16

申请号：JP2000134708

申请日：2000-05-08

Applicant: CANON KK

Inventor： YAMAZAKI KOJI ,  EBARA TOSHIYUKI ,  KARAKI TETSUYA ,  OWAKI HIRONORI ,  KAWAMURA KUNIMASA

IPC: G03G5/08 ,  G03G5/10

Abstract: PROBLEM TO BE SOLVED: To provide a post-processing method for an electrophotographic photoreceptor which is capable of polishing the abnormally grown projections generated on the surface of the a-Si base photoreceptor to a flat or reference line or below without flawing other good segments. SOLUTION: A polishing device having a supporting mechanism 120 for holding and rotating the a-Si photoreceptor 100, an elastic pressurizing roller 130 which is wound with a polishing tape 131 and presses this tape to the surface of the photoreceptor 100 and delivery rolls 132 and 134 for sending the polishing tape 131, etc., is used and when the surface projections of the photoreceptor 100 are flattened and polished by sending the polishing tape 131 while bringing the surfaces of the polishing tape 131 and the photoreceptor 100 into abutment on each other under pressurization, the photoreceptor 100 is elastically supported by the supporting mechanism 120.

公开(公告)号：JP2003226979A

公开(公告)日：2003-08-15

申请号：JP2002026587

申请日：2002-02-04

Applicant: CANON KK

Inventor： KAWAMURA KUNIMASA ,  NIINO HIROAKI ,  ABE YUKIHIRO

IPC: C23C16/505

Abstract: PROBLEM TO BE SOLVED: To improve a vacuum treatment characteristic and uniformity in the simultaneous vacuum treatment of a plurality of base materials to be treated. SOLUTION: A plurality of high frequency electrodes 8 each composed of a dielectric material and arranged outside a reaction vessel 5 are arranged to be positioned within a range of ±30° centering an intersection P of the reference line L and the outer circumferential part of the cylindrical base body 2 opposed to the part of the reaction vessel 5 composed of the dielectric material from a reference line L drawn by extending a straight line connecting the cylindrical base body 2 arranged in the reaction vessel 5 to a part of the reaction vessel 5 composed of the dielectric material in the shortest distance. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003129244A

公开(公告)日：2003-05-08

申请号：JP2001322224

申请日：2001-10-19

Applicant: CANON KK

Inventor： ABE YUKIHIRO ,  NIINO HIROAKI ,  KAWAMURA KUNIMASA

IPC: H05H1/00 ,  B01J19/08 ,  C23C16/507 ,  C23C16/52 ,  G03G5/08 ,  H01L21/205 ,  H05H1/46

Abstract: PROBLEM TO BE SOLVED: To provide an effective vacuum treatment method wherein the ratio among the electric powers of a plurality of high-frequency electric powers used in vacuum treatment can be effectively determined, and the ratio among electric powers in the case in which the same treatment is performed by using another apparatus structure can be suitably and effectively determined. SOLUTION: First, the luminous intensity of the plasma generated in a reactor 101 when a first high-frequency electric power from a high-frequency wave electric source 105a is applied alone and the luminous intensity of the plasma generated in the reactor 101 when a second high-frequency electric power from a high-frequency electric power source 105b is applied alone are previously determined. Then, the ratio of the output electric powers of the first and second high-frequency electric powers is determined so that the ratio between the luminous intensities of the plasmas may fall within a specified range, and a substrate 102 is subjected to vacuum treatment in the determined output power ratio.

公开(公告)号：JP2002196521A

公开(公告)日：2002-07-12

申请号：JP2000395407

申请日：2000-12-26

Applicant: CANON KK

Inventor： KARAKI TETSUYA ,  YAMAZAKI KOJI ,  KAWAMURA KUNIMASA

IPC: G03G15/01 ,  G03G5/08

Abstract: PROBLEM TO BE SOLVED: To impart superior total performance with high durability and high image quality to a full color electrophotographic device with plural image carriers. SOLUTION: The electrophotographic device uses a-Si(amorphous silicon) photoreceptors as photosensitive drums (image carriers). An image of an excellent black grade can be obtained by using a high performance specified a-Si photoreceptor in a black image forming part. The formation of a full color image with very small environmental dependence and exposure memory is enabled by using photoreceptors in which each photoconductive layer contains 10-30 at.% hydrogen atoms, the characteristic energy of the trailing of an exponential function obtained from a light absorption spectrum in at least a part of the photoconductive layer on which light is incident is 50-60 meV and localized state density in the photoconductive layer is 1×1014 to

公开(公告)号：JP2002123065A

公开(公告)日：2002-04-26

申请号：JP2001157383

申请日：2001-05-25

Applicant: CANON KK

Inventor： KAWAMURA KUNIMASA ,  EBARA TOSHIYUKI ,  OWAKI HIRONORI ,  KARAKI TETSUYA ,  KAWADA MASAYA

IPC: G03G15/02 ,  G03G5/08 ,  G03G15/04 ,  G03G15/043 ,  G03G21/00

Abstract: PROBLEM TO BE SOLVED: To provide an image forming device and an image forming method by which the influence of an optical memory effect is eliminated without installing the light source of destaticizing light and an excellent image quality is obtained by suppressing the occurrence of a ghost in an image forming device using an a-Si photoreceptor as a light receptive member. SOLUTION: The image forming device which is constituted so as to apply voltage to a conductive elastic member 102 rotating by having relative velocity to the light receptive member 101 and to electrify the surface to be electrified of the light receptive member 101 so as to be negative through incidental conductive particles M to the surface of the elastic member as a main electrifier 102 and in which the light source having the peak of wavelength in the range of 400-690 nm is used as an exposure light source L and the image forming method using the image forming device thereof are provided.

公开(公告)号：JP2002082572A

公开(公告)日：2002-03-22

申请号：JP2000273951

申请日：2000-09-08

Applicant: CANON KK

Inventor： OWAKI HIRONORI ,  EBARA TOSHIYUKI ,  KAWADA MASAYA ,  KAWAMURA KUNIMASA ,  KARAKI TETSUYA

IPC: G01N27/60 ,  G03G5/08 ,  G03G21/00

Abstract: PROBLEM TO BE SOLVED: To provide an evaluating method by which various characteristics concerning an electrophotographic process such as photoreceptive characteristic, dark decay characteristic and optical memory characteristic as well as the electrostatic chargeability of a photoreceptor are synthetically and accurately detected and each performance difference is strictly detected. SOLUTION: A unit 104 having an electrifying means 102 and a surface potential measuring probe 103 is provided on the outer periphery of the cylindrical photoreceptor 101 having a photoconductive layer principally composed of amorphous silicon. The unit 104 is positioned at an optional place in the bus direction of the photoreceptor and the photoreceptor 101 is rotated, then electrification and the measurement of surface potential is performed to evaluate the characteristic of the photoreceptor 101. The effective electrification range of the means 102 in the bus direction of the photoreceptor 101 is >=2 cm and