JPS6429881A - Developing device - Google Patents

Developing device

Info

Publication number
JPS6429881A
JPS6429881A JP18643087A JP18643087A JPS6429881A JP S6429881 A JPS6429881 A JP S6429881A JP 18643087 A JP18643087 A JP 18643087A JP 18643087 A JP18643087 A JP 18643087A JP S6429881 A JPS6429881 A JP S6429881A
Authority
JP
Japan
Prior art keywords
toner
development
development part
replenished
replenishing
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
JP18643087A
Other languages
Japanese (ja)
Inventor
Yoshihiro Yamada
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP18643087A priority Critical patent/JPS6429881A/en
Publication of JPS6429881A publication Critical patent/JPS6429881A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To start development immediately even when a development part is switched by operating the toner density detecting means of a development part which is not used and replenishing toner by a corresponding toner replenishing means when detecting the toner concentration of the development part being low. CONSTITUTION:Even when toner is supplied from a either of development parts 6 and 7 at the time of development, toner sensors 13 and 14 detect the toner concentration in both development parts 6 and 7 and input the results to a microcomputer 17. The microcomputer 17 operates a corresponding toner replenishing motor 15 or 16 when the toner density in the development part 6 or 7 is lower than a specific value, thereby toner is replenished. Thus, even when the development part is not used for the development, the toner is replenished, so when the specification of a color is changed, the development part 6 or 7 which is used newly is already replenished with a necessary amount of toner at all times.
JP18643087A 1987-07-24 1987-07-24 Developing device Pending JPS6429881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18643087A JPS6429881A (en) 1987-07-24 1987-07-24 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18643087A JPS6429881A (en) 1987-07-24 1987-07-24 Developing device

Publications (1)

Publication Number Publication Date
JPS6429881A true JPS6429881A (en) 1989-01-31

Family

ID=16188294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18643087A Pending JPS6429881A (en) 1987-07-24 1987-07-24 Developing device

Country Status (1)

Country Link
JP (1) JPS6429881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518761A (en) * 1992-08-28 1996-05-21 Nippon Shokubai Co., Ltd. Absorbent material absorbent article, and method for production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518761A (en) * 1992-08-28 1996-05-21 Nippon Shokubai Co., Ltd. Absorbent material absorbent article, and method for production thereof
US5720736A (en) * 1992-08-28 1998-02-24 Nippon Shokubai Co., Ltd. Absorbent material, absorbent article, and method for production thereof

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