JPS56138757A - Dry type developing method of electrostatic latent image - Google Patents

Dry type developing method of electrostatic latent image

Info

Publication number
JPS56138757A
JPS56138757A JP4183780A JP4183780A JPS56138757A JP S56138757 A JPS56138757 A JP S56138757A JP 4183780 A JP4183780 A JP 4183780A JP 4183780 A JP4183780 A JP 4183780A JP S56138757 A JPS56138757 A JP S56138757A
Authority
JP
Japan
Prior art keywords
gap
latent image
roll
electrostatic latent
images
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4183780A
Other languages
Japanese (ja)
Inventor
Masao Masumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP4183780A priority Critical patent/JPS56138757A/en
Publication of JPS56138757A publication Critical patent/JPS56138757A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To prevent the occurrence of streaklike white drop-out etc. in copied images by specifying the ratio of the gap between a doctor plate and a magnet roll, and the gap between the roll and a latent image carrying body in developing said images by using a magnet roll in an developer using a low-surface-energy-type carrier. CONSTITUTION:In using the developer D of a mixed system of the magnetic carriers coated with a low-surface-energy-type material such as ''Teflon '' or silicon resin and the toner in developing electrostatic latent images, the ratio t1/t2 of the gap t1 between the peripheral surface 22 of a magnet roll 20 and a doctor plate 28 and the gap t2 between the roll 20 and the latent image carrying body 1 such as photosensitive drum is set as shown by the formula. In this way, the occurrence of the ear trace phenomenon in which streaklike white drop-out, etc. are caused when the toner T of the developed image is rubbed by a magnetic brush is obtained.
JP4183780A 1980-03-31 1980-03-31 Dry type developing method of electrostatic latent image Pending JPS56138757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4183780A JPS56138757A (en) 1980-03-31 1980-03-31 Dry type developing method of electrostatic latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4183780A JPS56138757A (en) 1980-03-31 1980-03-31 Dry type developing method of electrostatic latent image

Publications (1)

Publication Number Publication Date
JPS56138757A true JPS56138757A (en) 1981-10-29

Family

ID=12619367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4183780A Pending JPS56138757A (en) 1980-03-31 1980-03-31 Dry type developing method of electrostatic latent image

Country Status (1)

Country Link
JP (1) JPS56138757A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119585A (en) * 1983-11-17 1985-06-27 ゼロツクス　コーポレーシヨン Electrostatic latent image developing method
JPS60258559A (en) * 1984-06-06 1985-12-20 Ricoh Co Ltd Electrostatic latent image developer
JPS6147974A (en) * 1984-08-16 1986-03-08 Fuji Xerox Co Ltd Magnetic brush developing device
JPH0289066A (en) * 1988-09-27 1990-03-29 Mita Ind Co Ltd Developing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49117050A (en) * 1973-12-24 1974-11-08
JPS53129639A (en) * 1977-04-19 1978-11-11 Mita Industrial Co Ltd Method of and device for electrostatic copying

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49117050A (en) * 1973-12-24 1974-11-08
JPS53129639A (en) * 1977-04-19 1978-11-11 Mita Industrial Co Ltd Method of and device for electrostatic copying

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119585A (en) * 1983-11-17 1985-06-27 ゼロツクス　コーポレーシヨン Electrostatic latent image developing method
JPH0560104B2 (en) * 1983-11-17 1993-09-01 Xerox Corp
JPS60258559A (en) * 1984-06-06 1985-12-20 Ricoh Co Ltd Electrostatic latent image developer
JPS6147974A (en) * 1984-08-16 1986-03-08 Fuji Xerox Co Ltd Magnetic brush developing device
JPH0289066A (en) * 1988-09-27 1990-03-29 Mita Ind Co Ltd Developing method

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