JPS5260144A - Automatic control system for toner density of developer - Google Patents

Automatic control system for toner density of developer

Info

Publication number
JPS5260144A
JPS5260144A JP50135888A JP13588875A JPS5260144A JP S5260144 A JPS5260144 A JP S5260144A JP 50135888 A JP50135888 A JP 50135888A JP 13588875 A JP13588875 A JP 13588875A JP S5260144 A JPS5260144 A JP S5260144A
Authority
JP
Japan
Prior art keywords
developer
control system
toner density
automatic control
density
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.)
Granted
Application number
JP50135888A
Other languages
Japanese (ja)
Other versions
JPS5945989B2 (en
Inventor
Koichi Suzuki
Tomoaki Suzuki
Mitsuhiro Nonaka
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 JP50135888A priority Critical patent/JPS5945989B2/en
Publication of JPS5260144A publication Critical patent/JPS5260144A/en
Publication of JPS5945989B2 publication Critical patent/JPS5945989B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To enable a proper control for the density of developer in the electrophotographic copying machine by detecting a magnetic field which corresponds to the toner density by the Hall element, and controlling the supply of toner due to the voltage output.
JP50135888A 1975-11-12 1975-11-12 Genzo Zaino Toner Expired JPS5945989B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50135888A JPS5945989B2 (en) 1975-11-12 1975-11-12 Genzo Zaino Toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50135888A JPS5945989B2 (en) 1975-11-12 1975-11-12 Genzo Zaino Toner

Publications (2)

Publication Number Publication Date
JPS5260144A true JPS5260144A (en) 1977-05-18
JPS5945989B2 JPS5945989B2 (en) 1984-11-09

Family

ID=15162128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50135888A Expired JPS5945989B2 (en) 1975-11-12 1975-11-12 Genzo Zaino Toner

Country Status (1)

Country Link
JP (1) JPS5945989B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158566A (en) * 1981-03-26 1982-09-30 Toyo Commun Equip Co Ltd Live wire current measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158566A (en) * 1981-03-26 1982-09-30 Toyo Commun Equip Co Ltd Live wire current measuring device

Also Published As

Publication number Publication date
JPS5945989B2 (en) 1984-11-09

Similar Documents

Publication Publication Date Title
JPS5497038A (en) Image density controller for zerographic copier
JPS5265443A (en) Magnetic brush development of electrostatic latent image
ES410096A1 (en) Automatic development control
JPS5266438A (en) Development device for electrophotographic copying machine
JPS5238938A (en) Temperature control device for fixing means of electrophotographic cop ying machine
GB1546988A (en) Developer supply control in an electrostatic copying machine
JPS53110840A (en) Electrophotographic copier
JPS53119049A (en) Detecting and controlling method of toner contents in developer and device for the same
JPS5260144A (en) Automatic control system for toner density of developer
JPS5277732A (en) Toner for electrophotographic development
JPS55106478A (en) Electrostatic latent image developing unit
JPS51133028A (en) Electrophotographic development method
JPS5337420A (en) Control method for electrostatic copier
JPS52119328A (en) Automatic control for amt. of exposure light in electrophotographic co pier
JPS5359433A (en) Developing device for electrostatic latent image
JPS5332745A (en) Developing device for electrostatic latent image
JPS5356038A (en) Control device for toner density
JPS5371838A (en) Detector for toner density
JPS5225642A (en) Development means
JPS52110048A (en) Toner controller
JPS5633661A (en) Copying machine
JPS5218326A (en) Automatic toner adjustable supply device for development for the elect rophotographic copying machine
JPS5215334A (en) Density maintaining process for the developer for the electrophotographic copying
JPS5435730A (en) Control method for copier
JPS52119233A (en) Toner supply means

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees