Using Identified Cleaning Element Or Material (e.g., Brush, Etc.) Patents (Class 430/119.8)
  • Patent number: 8758970
    Abstract: A method of deinking an image-bearing member using an organic solvent includes receiving the image-bearing member. The member has thereon a continuous or discontinuous image layer formed of toner particles that do not include colorant, and colorant particles or molecules. The colorant particles or molecules are arranged in a pattern corresponding to the arrangement of the toner particles. The organic solvent is hydrophobic or oliophilic and the colorant is insoluble in the organic solvent. The hydrophobic or oliophilic organic solvent is applied to the image-bearing member, so that a majority of the toner image layer is dissolved off the image-bearing member and the colorant is removed from the image-bearing member. A deinked reflection density of the image-bearing member in a selected test area from which the toner image layer was dissolved is within 0.15 of an unprinted reflection density of the image-bearing member before deinking.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Thomas Nathaniel Tombs, Donald Saul Rimai
  • Patent number: 8110330
    Abstract: To provide a toner that contains at least a binder resin, a colorant, a releasing agent and zeolite, the toner being manufactured through O/W type wet granulation and having an average circularity of 0.970 or greater, and a developer and image forming method using the toner.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: February 7, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshimichi Ishikawa, Chiyoshi Nozaki, Tsuyoshi Nozaki, Takuya Kadota, Katsunori Kurose, Mitsuyo Matsumoto, Atsushi Yamamoto, Masahide Inoue
  • Publication number: 20100323288
    Abstract: The disclosed embodiments are directed to an electrophotographic photoreceptor having a release layer. More particularly, the disclosure relates to an electrophotographic photoreceptor having a release layer which comprises an organosilane compound coated over the substrate surface. Other embodiments include methods for coating layer removal using a specifically configured electrophotographic photoreceptor having a release layer and methods for recovering a charge transport molecule.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 23, 2010
    Inventors: Robert P. Altavela, Yuhua Tong, Edward F. Grabowski, Kent J. Evans, Adilson Ramos, Nancy Belknap, Helen R. Cherniack
  • Patent number: 7514190
    Abstract: An electrophotographic image forming method is disclosed, which includes the steps of developing an electrostatic image on a electrophotographic photoreceptor by a developer, transferring a toner image formed by the development, and fixing the toner image on a recording medium. It is disclosed that a toner has a volume particle diameter (Dv50) of about 4.4 to about 5.8 ?m and displays two or more endothermic peaks measured by DSC being within the rang of from about 50 to about 73° C. and the endothermic heat amount thereof is from 12.6 to 24.5 J/mg and a transferring member and/or a fixing member constituted by a belt containing a polyimide resin are employed in the method.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 7, 2009
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Ken Ohmura, Asao Matsushima
  • Patent number: 7459257
    Abstract: An image forming apparatus of the present invention comprises an image carrier, a lubricant application device that applies a first lubricant to the image carrier surface, and a developing device that houses a developer to which a second lubricant is added and develops the electrostatic latent image formed on the image carrier. Here, the pure water contact angle ?1 of the first lubricant and the pure water contact angle ?2 of the second lubricant have the following relationship, ?1??2. Furthermore, a frictional coefficient of the second lubricant may be larger than a frictional coefficient of the first lubricant.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: December 2, 2008
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Yasuo Shirodai, Kuniaki Kashiwakura
  • Patent number: 7449271
    Abstract: An electrophotographic photoconductor and method that seldom generate cracks even while recycling a photoconductor drum and peripheral members or in a liquid developing process, and thereby produce excellent images. The electrophotographic photoconductor includes a conductive substrate and a photosensitive layer comprising a charge generation material and a charge transport material. The photosensitive layer comprises a resin binder of polyarylate resin having structural units represented by the following formula (I): In the formula, R1 and R2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group. R1, R2, and a carbon atom bonding to the R1 and R2 together form a cyclic structure. The cyclic structure is bonded to no more than two arylene groups. Each of R3 through R10 being a hydrogen atom, an alkyl group, a fluorine atom, a chlorine atom, and a bromine atom. The values of m and n satisfy the equation 0.5<m/(m+n)<0.7.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: November 11, 2008
    Assignee: Fuji Electric Device Technology Co., Ltd.
    Inventors: Masaru Kobashi, Yoichi Nakamura, Ikuo Takaki
  • Publication number: 20070254233
    Abstract: In an image forming method in which a toner image, which is visualized via an electrostatic latent image formed on an electrophotographic photoreceptor, employing a developer incorporating toner, is transferred onto a recording material followed by fixing, and any residual toner remaining on the electrophotographic photoreceptor is removed, an image forming method in which an electrophotographic photoreceptor and a toner which satisfy specified requirements are employed and image formation is carried out while feeding a surface energy lowering agent from the developer onto the aforesaid electrophotographic photoreceptor, and an image forming apparatus employing the same.
    Type: Application
    Filed: April 18, 2007
    Publication date: November 1, 2007
    Inventors: Shingo FUJIMOTO, Takao YAMANOUCHI, Hirofumi KOGA, Masaaki KONDO, Shiro HIRANO, Junya ONISHI