JPS5616134A - Developing device of wet type diazo copying machine - Google Patents

Developing device of wet type diazo copying machine

Info

Publication number
JPS5616134A
JPS5616134A JP9094179A JP9094179A JPS5616134A JP S5616134 A JPS5616134 A JP S5616134A JP 9094179 A JP9094179 A JP 9094179A JP 9094179 A JP9094179 A JP 9094179A JP S5616134 A JPS5616134 A JP S5616134A
Authority
JP
Japan
Prior art keywords
developer
tank
hydrometer
developing device
water
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
JP9094179A
Other languages
Japanese (ja)
Inventor
Shigeru Higeta
Tsutomu Matsuda
Takeo Hirabayashi
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 JP9094179A priority Critical patent/JPS5616134A/en
Publication of JPS5616134A publication Critical patent/JPS5616134A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photographic Processing Devices Using Wet Methods (AREA)

Abstract

PURPOSE: To maintain the composition of a developer stably and obtain a high quality copy by providing a developing device with a developer tray, a developer tank, a pipe, a hydrometer and a diluting water replenishing member and preventing the formation of bubbles in the tank to actuate the hydrometer normally.
CONSTITUTION: Developer 6 overflowing from developer tray 5 and returning to developer tank 7 is not simply dropped onto the surface of devloper 6 in tank 7, but introduced into developer 6 in tank 7 through developer introducing pipe 16,so bubbles are not formed in tank 7. When the specific gravity of developer 6 increases as water or a highly volatile component in developer 6 evaporates, hydrometer 10 and photosensor 11 detect the increase correctly and replenish diluting water 10 into developer 6. When the specific gravity of developer 6 returns to the original value, control circuit 12 closes control valve 13 to stop the replenishment of water 15.
COPYRIGHT: (C)1981,JPO&Japio
JP9094179A 1979-07-19 1979-07-19 Developing device of wet type diazo copying machine Pending JPS5616134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9094179A JPS5616134A (en) 1979-07-19 1979-07-19 Developing device of wet type diazo copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9094179A JPS5616134A (en) 1979-07-19 1979-07-19 Developing device of wet type diazo copying machine

Publications (1)

Publication Number Publication Date
JPS5616134A true JPS5616134A (en) 1981-02-16

Family

ID=14012471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9094179A Pending JPS5616134A (en) 1979-07-19 1979-07-19 Developing device of wet type diazo copying machine

Country Status (1)

Country Link
JP (1) JPS5616134A (en)

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