Title:
DEVELOPING DEVICE FOR PHOTOSENSITIVE LITHOGRAPHIC PRINTING PLATE
Document Type and Number:
Japanese Patent JP3613478
Kind Code:
B2
Abstract:
PURPOSE: To provide a developing device for a photosensitive lithographic printing plate capable of applying stable development over a long period even when the installation environment is changed.
CONSTITUTION: A PS plate developing device 1 is provided with a replenishing device 17 replenishing a development replenisher when the electric conductivity of a developer is lower than a set value. The replenishing device 17 is provided with a process quantity measuring means 21 measuring the process quantity of a photosensitive lithographic printing plate 3 for a unit time, a control means changing the set value of the electric conductivity based on the measured value, and a memory means storing the adequate relation between the process quantity and electric conductivity. The set value of the electric conductivity is changed in response to the increase or decrease of the process quantity.
Inventors:
Koji Oishi
Yoko Sasayama
Yoko Sasayama
Application Number:
JP30778194A
Publication Date:
January 26, 2005
Filing Date:
December 12, 1994
Export Citation:
Assignee:
Fuji Photo Film Co., Ltd.
International Classes:
G03F7/00; G03F7/30; (IPC1-7): G03F7/30; G03F7/00
Domestic Patent References:
| JP643661A | ||||
| JP1180548A | ||||
| JP6161164A |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu
Yuriko Hamada
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