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Image forming apparatus having high image quality control mechanism

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G03G-015/01
  • G03G-015/14
출원번호 US-0908804 (1997-08-08)
우선권정보 JP-0231386 (1996-08-13)
발명자 / 주소
  • Sakai Yoshihiko,JPX
  • Yamada Kunio,JPX
  • Ogihara Atsushi,JPX
출원인 / 주소
  • Fuji Xerox Co., Ltd., JPX
대리인 / 주소
    Oliff & Berridge, PLC
인용정보 피인용 횟수 : 40  인용 특허 : 8

초록

An unfixed toner image of a reference pattern is formed on a photosensitive member, the unfixed toner image is measured by a development density sensor 13, and the amount of toner to be supplied to a developing device 4 is controlled by a toner supply control unit 60 on the basis of a measurement ou

대표청구항

[ What is claimed is:] [1.] An image forming apparatus, comprising:image forming means of an electrophotographic type;toner image measuring means for measuring an unfixed toner image of a reference pattern, the unfixed toner image being formed by said image forming means;toner supply controlling mea

이 특허에 인용된 특허 (8)

  1. Tokuyama Mitsuru (Nara JPX) Ino Toshiaki (Yamatokoriyama JPX) Itoyama Motoyuki (Yamatokoriyama JPX) Ohashi Kunio (Nara JPX) Nishiyama Haruo (Nara JPX), Electrophotographic image stabilization control apparatus.
  2. Morita Tetsuya (Yokohama JPX), Electrophotographic process control device which uses fuzzy logic to control the image density.
  3. Suzuki, Koji, Humidity measurement device and image forming apparatus having the same.
  4. Ishikawa Kiyotaka (Ashigarakami-gun JPX) Yamada Kunio (Ashigarakami-gun JPX), Image quality control in image forming apparatus.
  5. Kobayashi Shinya (Mito JPX) Sato Kunio (Hitachi JPX) Ono Katsuhiro (Hitachinaka JPX), Image recording apparatus for controlling image in high quality and image quality control method thereof.
  6. Noguchi Teruhiko,JPX ; Masuda Jitsuo,JPX ; Inoue Katsushi,JPX, Image-quality stabilizer for use in an electrophotographic apparatus.
  7. Hattori Yoshihiro (Osaka JPX) Fukui Kazuyuki (Osaka JPX) Hada Yoshinobu (Osaka JPX), Toner density measurement apparatus having output characteristics variable with humidity.
  8. Kawasaki Noriko (Kawasaki JPX) Uematsu Akihiko (Kawasaki JPX) Sugimoto Katsumi (Kawasaki JPX), Toner supply control system and method.

이 특허를 인용한 특허 (40)

  1. Ng,Yee S., Automated image appearance control method.
  2. Nakajima, Nobuyuki, Calibration method, information processing apparatus and information processing system.
  3. Lee, Joanne Lai Zen; Buzzelli, John T., Closed loop controls for transfer control in first transfer for optimized image content.
  4. Kita, Hiroshi; Tezuka, Hiroki; Maebashi, Yoichicro, Color image forming apparatus and control method therefor.
  5. Maebashi, Yoichiro; Katagiri, Shinji, Color image forming apparatus and control method therefor.
  6. Yamazaki,Hiroyuki, Color image forming apparatus and method for controlling color image forming apparatus.
  7. Nakayama, Toshiki, Color image forming apparatus and method of controlling same.
  8. Nakayama,Toshiki, Color image forming apparatus and method of controlling same.
  9. Tokairin Motohiro,JPX ; Sugisaki Eiichi,JPX ; Nishiura Tamotsu,JPX ; Shimizubata Amiko,JPX, Continuous medium printing apparatus.
  10. Suzuki, Tomohisa; Iwanami, Toru; Hamatsu, Makoto; Ge, Wenxiang; Nagata, Kenjo; Tanaka, Hidefumi, Density detection apparatus and method and image forming apparatus.
  11. Silverstein,D. Amnon, Digital camera for image device calibration.
  12. Mealy, James; Simmons, Asher, Dynamic image dithering.
  13. Mealy, James; Simmons, Asher, Dynamic image dithering.
  14. Honda Takao,JPX, Electrophotographic image forming apparatus.
  15. Burry,Aaron M.; Bray,Daniel M.; Julien,Paul C., Feed forward mitigation of development transients.
  16. Komiya, Yoshiyuki, Image forming apparatus and image forming apparatus control method.
  17. Komiya, Yoshiyuki, Image forming apparatus and image forming apparatus control method.
  18. Yamamoto, Keiji; Ando, Ryo; Kazama, Toshiyuki; Torimaru, Satoru; Kawabata, Takashi; Kikuchihara, Katsunori; Takahashi, Masaaki; Miyamoto, Yoko; Matsuzaka, Satoshi; Kaneyama, Kiyotoshi, Image forming apparatus and method.
  19. Nomura, Yoshihisa, Image forming apparatus and method for calibrating density and color.
  20. Ishibashi, Hitoshi; Hasegawa, Shin; Fujimori, Kohta; Takeuchi, Nobutaka; Tanaka, Kayoko; Hirayama, Yushi; Tomita, Kentaroh; Hirai, Shuji, Image forming apparatus capable of efficient toner concentration control.
  21. Nakase, Takahiro; Yamamoto, Naoyuki; Suzuki, Hitoshi; Kondo, Toshiharu; Yoshimura, Yasuhiro, Image forming apparatus capable of switching image adjustment process according to an environment condition.
  22. Funabiki,Hiroshi, Image forming apparatus for determining and correcting magnification and location of image formation.
  23. Tezuka, Hiroki; Nakayama, Toshiki; Uchiyama, Seiji; Maebashi, Yoichiro, Image forming apparatus which performs image formation control based on the image after fixing.
  24. Katoh Masahiko,JPX ; Yanagawa Nobuyuki,JPX ; Saito Masanori,JPX ; Kibune Hideaki,JPX ; Imai Akira,JPX, Image forming apparatus with a toner mounter having a vibration apparatus.
  25. Maeyama, Ryuichiro, Image forming device and method for controlling toner temperature on photoreceptor when a toner image is exposed to light.
  26. Suzuki,Katsuhiko, Image forming device with image density control.
  27. Oyoshi, Kazuhiro, Image processing apparatus having object detection capability and power control and method of controlling the same.
  28. Sakamoto,Masaomi; Seki,Masao; Ishizuka,Ryuichi; Inoue,Yukiharu; Takahira,Toshifumi; Agehama,Ryo, Image-formation control apparatus, method for calibrating image forming apparatus, and program.
  29. Yamada, Akihiro, Image-forming device wherein the density of the images are corrected.
  30. Hirata,Katsuyuki; Katori,Kentaro; Sakai,Tetsuya; Wada,Tomoki, Light quantity correction method for exposing device, and image forming device.
  31. Dorfner, Ralph, Method and apparatus for regulating a property of an image printed on a support material.
  32. Tezuka,Hiroki; Maebashi,Yoichiro, Method of making correction for color sensor output values in color image forming apparatus, and color image forming apparatus.
  33. Stephen John Nichols, Method to evaluate the cleaning performance of brush cleaners in an electrophotographic printer.
  34. Kenichi Wada JP; Tomohiko Masuda JP; Yuji Kamoda JP, Optical quantity measuring method and optical quantity measuring apparatus using same.
  35. Ramesh, Palghat S.; Sheflin, Joseph; LeStrange, Jack; Paul, Peter; Burry, Aaron M., Optimization of reload performance for printer development systems with donor rolls.
  36. Sugiyama, Kouichi, Printing control method.
  37. Sugiyama, Kouichi, Printing control method.
  38. Maess Volkhard,DEX ; Schleusener Martin,DEX, Process for optimizing a half-tone reproduction on a photoconductor of electrophotographic printers and copiers.
  39. Hamby,Eric S.; Gross,Eric M.; Viassolo,Daniel E.; Thompson,Michael D.; Viturro,R. Enrique; Xiao,Fei; Lange,Clark V., Systems and methods for correcting banding defects using feedback and/or feedforward control.
  40. Denton, Gary Allen; Routt, Jr., Wilson Morgan, Toner patch sensor with integrating optical collection geometry.
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