JPS5473036A - Developing device of diazo copying machine - Google Patents
Developing device of diazo copying machineInfo
- Publication number
- JPS5473036A JPS5473036A JP13976777A JP13976777A JPS5473036A JP S5473036 A JPS5473036 A JP S5473036A JP 13976777 A JP13976777 A JP 13976777A JP 13976777 A JP13976777 A JP 13976777A JP S5473036 A JPS5473036 A JP S5473036A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- pressure
- coating
- developer
- rollers
- 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
Links
Landscapes
- Wet Developing In Electrophotography (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
PURPOSE: To suitably coat developer without using any blade by specifying the surface roughness and contact pressure of both feed and coating rollers.
CONSTITUTION: The mean surface roughness of a feed roller 1 which is covered with a non-porous elastic material of good surface finishes is made 3μRa or under and the mean surface roughness of a coating roller 2 at 0.5 to 1.6μRa respectively, and both rollers 1, 2 are made pressure-contactable through pressure roller 13 under a suitable pressure. Then, at the driving of the developing device, an arm 16 is turned with force P and the pressure, coating and feed rollers 3, 2, 1 are mutually pressure contacted by way of the pressure roller 13, after which the coating roller 2 revolves and excess volume of the developer 12 having been scooped up by the feed roller 1 is adjusted to a slight volume in the contact parts of both rollers 1, 2, then part of the developer evenly remains on the surface of the coating roller 2 and is evenly transferred onto photosensitive paper. If a liquid removing member 19 is provided at the protruding end part of the feed roller 1, the developer 12 having gone to the back side of the coating roller 2 is removed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13976777A JPS5473036A (en) | 1977-11-21 | 1977-11-21 | Developing device of diazo copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13976777A JPS5473036A (en) | 1977-11-21 | 1977-11-21 | Developing device of diazo copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5473036A true JPS5473036A (en) | 1979-06-12 |
JPS6255133B2 JPS6255133B2 (en) | 1987-11-18 |
Family
ID=15252913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13976777A Granted JPS5473036A (en) | 1977-11-21 | 1977-11-21 | Developing device of diazo copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5473036A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54140536A (en) * | 1978-04-24 | 1979-10-31 | Ricoh Co Ltd | Developer for diazo copier |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929838A (en) * | 1972-07-15 | 1974-03-16 | ||
JPS5275438A (en) * | 1975-12-20 | 1977-06-24 | Ricoh Co Ltd | Liquid development means for diazo type copying machine |
-
1977
- 1977-11-21 JP JP13976777A patent/JPS5473036A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929838A (en) * | 1972-07-15 | 1974-03-16 | ||
JPS5275438A (en) * | 1975-12-20 | 1977-06-24 | Ricoh Co Ltd | Liquid development means for diazo type copying machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54140536A (en) * | 1978-04-24 | 1979-10-31 | Ricoh Co Ltd | Developer for diazo copier |
JPS6255134B2 (en) * | 1978-04-24 | 1987-11-18 | Ricoh Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6255133B2 (en) | 1987-11-18 |
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