JPS5466845A - Device for preventing reverse side of sheet from staining in developing - Google Patents

Device for preventing reverse side of sheet from staining in developing

Info

Publication number
JPS5466845A
JPS5466845A JP13381177A JP13381177A JPS5466845A JP S5466845 A JPS5466845 A JP S5466845A JP 13381177 A JP13381177 A JP 13381177A JP 13381177 A JP13381177 A JP 13381177A JP S5466845 A JPS5466845 A JP S5466845A
Authority
JP
Japan
Prior art keywords
reverse side
staining
toner
paper
developing
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
JP13381177A
Other languages
Japanese (ja)
Other versions
JPS579064B2 (en
Inventor
Masanori Yoshimura
Kazuyuki Hara
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 JP13381177A priority Critical patent/JPS5466845A/en
Publication of JPS5466845A publication Critical patent/JPS5466845A/en
Publication of JPS579064B2 publication Critical patent/JPS579064B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To prevent the reverse side of a sheet from staining, by providing a concentric annular prominence in the effective region of magnetic brush of toner except both the ends of a tubular developing sleeve.
CONSTITUTION: Concentric annular prominence 11a is formed in one body with the main body of tubular developing sleeve 11 in the effective region of a magnetic toner brush except both the ends of circumference of sleeve 11. Width L2 os this prominence 11a is smaller than width L1 of recording paper S and equal to or somewhat larger than that of the effective image of characters on paper S. The magnetic brush of developing toner is formed on the circumference of prominenc 11a, and paper S moves in contact with the brush to develop a static latent image. This can prevent the toner from turning round to the reverse side of paper S and from staining the reverse side.
COPYRIGHT: (C)1979,JPO&Japio
JP13381177A 1977-11-08 1977-11-08 Device for preventing reverse side of sheet from staining in developing Granted JPS5466845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13381177A JPS5466845A (en) 1977-11-08 1977-11-08 Device for preventing reverse side of sheet from staining in developing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13381177A JPS5466845A (en) 1977-11-08 1977-11-08 Device for preventing reverse side of sheet from staining in developing

Publications (2)

Publication Number Publication Date
JPS5466845A true JPS5466845A (en) 1979-05-29
JPS579064B2 JPS579064B2 (en) 1982-02-19

Family

ID=15113583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13381177A Granted JPS5466845A (en) 1977-11-08 1977-11-08 Device for preventing reverse side of sheet from staining in developing

Country Status (1)

Country Link
JP (1) JPS5466845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5699557U (en) * 1979-12-26 1981-08-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840440A (en) * 1971-09-06 1973-06-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840440A (en) * 1971-09-06 1973-06-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5699557U (en) * 1979-12-26 1981-08-06
JPS5921405Y2 (en) * 1979-12-26 1984-06-23 松下電器産業株式会社 Electrophotographic developing device

Also Published As

Publication number Publication date
JPS579064B2 (en) 1982-02-19

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