JPS57116364A - Development bias device of electrostatic rcorder - Google Patents

Development bias device of electrostatic rcorder

Info

Publication number
JPS57116364A
JPS57116364A JP263781A JP263781A JPS57116364A JP S57116364 A JPS57116364 A JP S57116364A JP 263781 A JP263781 A JP 263781A JP 263781 A JP263781 A JP 263781A JP S57116364 A JPS57116364 A JP S57116364A
Authority
JP
Japan
Prior art keywords
sine wave
development bias
resonance
electrostatic
bias voltage
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
JP263781A
Other languages
Japanese (ja)
Inventor
Koji Suzuki
Koki Kuroda
Joji Nagahira
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP263781A priority Critical patent/JPS57116364A/en
Priority to US06/338,045 priority patent/US4511240A/en
Publication of JPS57116364A publication Critical patent/JPS57116364A/en
Priority to US06/921,103 priority patent/US4755850A/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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5037—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor the characteristics being an electrical parameter, e.g. voltage
    • 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
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a high quality and highly efficient bias device for a recorder of reduced adjustment for resonance while its frequency is varied easily, by generating a development bias AC voltage for electrostatic recording through a sine wave oscillator, an amplifying circuit, a boosting transformer, etc. CONSTITUTION:One of sine wave oscillating circuits 9a and 9b having different frequencies is selected with a switch 16a, and a sine wave with a desired frequency is processed through the A-class amplification of an amplifying circuit 10 which is brought under AGC, and then boosted by a transformer 11 performs unsaturated, distortionless operation to generate a sine wave AC development bias voltage. Further, a DC bias voltage based upon a feedback output which corresponds to the potential of a latent image is superposed upon said bias voltage, and the sine wave is not generated by generating a rectangular oscillating wave by resonance, so adjustments for resonance are reduced to facilitate frequency variation, so that a development bias device for an electrostatic recorder has excellent gradation reproducibility, high efficiency, low noise, and good quality.
JP263781A 1981-01-13 1981-01-13 Development bias device of electrostatic rcorder Pending JPS57116364A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP263781A JPS57116364A (en) 1981-01-13 1981-01-13 Development bias device of electrostatic rcorder
US06/338,045 US4511240A (en) 1981-01-13 1982-01-08 Electrostatic recording apparatus
US06/921,103 US4755850A (en) 1981-01-13 1986-10-21 Electrostatic recording apparatus including a controlled developer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP263781A JPS57116364A (en) 1981-01-13 1981-01-13 Development bias device of electrostatic rcorder

Publications (1)

Publication Number Publication Date
JPS57116364A true JPS57116364A (en) 1982-07-20

Family

ID=11534891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP263781A Pending JPS57116364A (en) 1981-01-13 1981-01-13 Development bias device of electrostatic rcorder

Country Status (1)

Country Link
JP (1) JPS57116364A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007160341A (en) * 2005-12-13 2007-06-28 Jfe Steel Kk Machine and method for continuously casting steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007160341A (en) * 2005-12-13 2007-06-28 Jfe Steel Kk Machine and method for continuously casting steel

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