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JPS5473050A - Dry type developing device - Google Patents

Dry type developing device

Info

Publication number
JPS5473050A
JPS5473050A JP13975677A JP13975677A JPS5473050A JP S5473050 A JPS5473050 A JP S5473050A JP 13975677 A JP13975677 A JP 13975677A JP 13975677 A JP13975677 A JP 13975677A JP S5473050 A JPS5473050 A JP S5473050A
Authority
JP
Japan
Prior art keywords
developing
developer
doctor
roller
plate
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
JP13975677A
Other languages
Japanese (ja)
Inventor
Makoto Hashimoto
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 JP13975677A priority Critical patent/JPS5473050A/en
Priority to US05/958,725 priority patent/US4226524A/en
Priority to GB7843799A priority patent/GB2008003B/en
Priority to DE2850003A priority patent/DE2850003C2/en
Publication of JPS5473050A publication Critical patent/JPS5473050A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To obtain good images free from uneven developing by increasing the bulk density of the developer on a sleeve at the time of developing.
CONSTITUTION: A first doctor plate 21 is disposed in proximity to the scooping-up roller 14 in a developer vessel 13 and a second doctor palte 22 and a preliminary compression plate 24 in proximity to a developing roller 15. Then, the developer in the developer vessel 13 is scooped up by the scooping up roller 14 and is defined to a specified volume by the first doctor plate 21, after which it is magnetically transferred to the developing roller 15 and is thereafter pressed and compressed by the preliminary compression plate 24 to be increased of its bulk density, thence the ear height of the magnetic brush is defined to a thickness suitable for developing by the second doctor plate 22. Hence, even sliding rubbing of the magnetic blade is performed on the electrostatic latent image carrier surface of the photosensitive drum 11 and the intended purpose is achieved.
COPYRIGHT: (C)1979,JPO&Japio
JP13975677A 1977-11-19 1977-11-21 Dry type developing device Pending JPS5473050A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP13975677A JPS5473050A (en) 1977-11-21 1977-11-21 Dry type developing device
US05/958,725 US4226524A (en) 1977-11-19 1978-11-08 Magnetic brush development apparatus for an electrostatic copier
GB7843799A GB2008003B (en) 1977-11-19 1978-11-09 Magnetic brush development apparatus
DE2850003A DE2850003C2 (en) 1977-11-19 1978-11-17 Developing device for an electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13975677A JPS5473050A (en) 1977-11-21 1977-11-21 Dry type developing device

Publications (1)

Publication Number Publication Date
JPS5473050A true JPS5473050A (en) 1979-06-12

Family

ID=15252646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13975677A Pending JPS5473050A (en) 1977-11-19 1977-11-21 Dry type developing device

Country Status (1)

Country Link
JP (1) JPS5473050A (en)

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