JPS6452153A - Circulating liquid flow detector for automatic photosensitive material developing machine - Google Patents
Circulating liquid flow detector for automatic photosensitive material developing machineInfo
- Publication number
- JPS6452153A JPS6452153A JP23111287A JP23111287A JPS6452153A JP S6452153 A JPS6452153 A JP S6452153A JP 23111287 A JP23111287 A JP 23111287A JP 23111287 A JP23111287 A JP 23111287A JP S6452153 A JPS6452153 A JP S6452153A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- circulation system
- liquid surface
- electrode
- detecting
- 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
Links
- 239000007788 liquid Substances 0.000 title abstract 7
- 239000000463 material Substances 0.000 title 1
- 230000005856 abnormality Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
Landscapes
- Photographic Processing Devices Using Wet Methods (AREA)
Abstract
PURPOSE:To automatically detect the fault of a processing liquid circulation system by providing a branch pipe to said circulation system, providing 2 pieces of electrodes to the aperture of the branch pipe in the high and low positions thereof and detecting the currents between the respective electrodes and an electrode disposed in a developing tank. CONSTITUTION:A developing soln. is sucked by a pump 3 from the bottom of the developing tank 1 and is passed to the circulation system 2 from which the soln. is returned to the developing tank 1. The branch pipe 7 is provided to the circulation system 2 and the 1st detecting electrode 9 is provided in the aperture 8 thereof, then the 2nd detecting electrode 10 is provided to the liquid surface position during the driving of the pump 3. The contact electrode 11 is immersed into the soln. in the developing tank 1. Both the 1st detecting electrode 9 and the 2nd detecting electrode 10 are turned on in the circuit with the contact electrode 11 and current flows therein while the pump 3 is static. The soln. in the branch pipe 7 is sucked and the liquid surface lowers when the pump 3 is driven. The 1st detecting electrode 9 is then detached from the liquid surface and the circuit is turned off. The 2nd detecting electrode 10 is in contact with the liquid surface and the circuit is turned on. Both the 1st and 2nd detecting electrodes 9, 10 are turned on in the circuit when the developing soln. decreases abnormally. The abnormality of the circulation system or the liquid surface in the processing tank is thus automatically detected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23111287A JPS6452153A (en) | 1987-05-07 | 1987-09-17 | Circulating liquid flow detector for automatic photosensitive material developing machine |
| US07/190,430 US4841321A (en) | 1987-05-07 | 1988-05-05 | Circulating liquid flow detecting apparatus in a machine for automatically processing light-sensitive material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10968587 | 1987-05-07 | ||
| JP23111287A JPS6452153A (en) | 1987-05-07 | 1987-09-17 | Circulating liquid flow detector for automatic photosensitive material developing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6452153A true JPS6452153A (en) | 1989-02-28 |
Family
ID=26449417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23111287A Pending JPS6452153A (en) | 1987-05-07 | 1987-09-17 | Circulating liquid flow detector for automatic photosensitive material developing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6452153A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119942B2 (en) * | 1980-09-22 | 1986-05-20 | Meidensha Electric Mfg Co Ltd |
-
1987
- 1987-09-17 JP JP23111287A patent/JPS6452153A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119942B2 (en) * | 1980-09-22 | 1986-05-20 | Meidensha Electric Mfg Co Ltd |
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