JPS54126550A - Static latent image developing apparatus - Google Patents

Static latent image developing apparatus

Info

Publication number
JPS54126550A
JPS54126550A JP3452278A JP3452278A JPS54126550A JP S54126550 A JPS54126550 A JP S54126550A JP 3452278 A JP3452278 A JP 3452278A JP 3452278 A JP3452278 A JP 3452278A JP S54126550 A JPS54126550 A JP S54126550A
Authority
JP
Japan
Prior art keywords
density
corona
grid
controlling
latent image
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
JP3452278A
Other languages
Japanese (ja)
Other versions
JPS5642874B2 (en
Inventor
Hiroyuki Hoshino
Yukio Tokunaga
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3452278A priority Critical patent/JPS54126550A/en
Publication of JPS54126550A publication Critical patent/JPS54126550A/en
Publication of JPS5642874B2 publication Critical patent/JPS5642874B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To stabilize toner charge quantity and to prevent carrier deterioration, by charging toner by corona discharge, and by controlling a grid for controlling corona current to ensure an optimum recording density.
CONSTITUTION: Developer 13 attached to magnetic roller 2' for feeding charged toner is corona-charged with grid 11 for controlling corona current to develop static latent image 1. The developed image 4 is transferred onto recording paper 6 with corona charger 5 for transfer. The transferred image M illuminated with record density illuminating lamp, record density is detected by photodetector 8, the output detected is applied to voltage control circuit 9 for grid 11, compared to the desired density, circuit 9 is adjusted so as to form the desired density, and this output is applied to corona charger 10, thus permitting the charge quantity necessary for giving the optimum density to be provided to developer 3 by grid 11.
COPYRIGHT: (C)1979,JPO&Japio
JP3452278A 1978-03-25 1978-03-25 Static latent image developing apparatus Granted JPS54126550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3452278A JPS54126550A (en) 1978-03-25 1978-03-25 Static latent image developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3452278A JPS54126550A (en) 1978-03-25 1978-03-25 Static latent image developing apparatus

Publications (2)

Publication Number Publication Date
JPS54126550A true JPS54126550A (en) 1979-10-01
JPS5642874B2 JPS5642874B2 (en) 1981-10-07

Family

ID=12416594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3452278A Granted JPS54126550A (en) 1978-03-25 1978-03-25 Static latent image developing apparatus

Country Status (1)

Country Link
JP (1) JPS54126550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764266A (en) * 1980-10-06 1982-04-19 Toshiba Corp Developing device for picture forming device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2114481B (en) * 1982-02-16 1985-08-29 Standard Telephones Cables Ltd Improvements in hand tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764266A (en) * 1980-10-06 1982-04-19 Toshiba Corp Developing device for picture forming device

Also Published As

Publication number Publication date
JPS5642874B2 (en) 1981-10-07

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