JPS63125928A - Thermal copying device - Google Patents

Thermal copying device

Info

Publication number
JPS63125928A
JPS63125928A JP61272500A JP27250086A JPS63125928A JP S63125928 A JPS63125928 A JP S63125928A JP 61272500 A JP61272500 A JP 61272500A JP 27250086 A JP27250086 A JP 27250086A JP S63125928 A JPS63125928 A JP S63125928A
Authority
JP
Japan
Prior art keywords
light emission
energy
lamp
control
stop signal
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
JP61272500A
Other languages
Japanese (ja)
Inventor
Shuichi Watanabe
Masanori Yoshikawa
Original Assignee
Matsushita Electric Ind 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP61272500A priority Critical patent/JPS63125928A/en
Publication of JPS63125928A publication Critical patent/JPS63125928A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a print having no irregularity by detecting the quantity of light from a xenon lamp and controlling it to a constant quantity at all times.
CONSTITUTION: An energy control circuit 23 compares information from a storage part 22 with the output of an integrator 21 and sends a light emission stop signal to a light emission stopping circuit 24 when they become equal in value to each other. The light emission stopping circuit 24 when receiving the light emission stop signal cuts off a current flowing to the xenon flash lamp 15 to stop light emission. Here, an applied voltage is held constant to perform light emission on the best conditions at all times, and the light emission time is controlled to control light emission energy. Consequently, the light emission is performed with good efficiency at all times and the power consumption is reducible. Further, the xenon flash lamp varies in the quantity of light emission with the lamp temperature and with, so the quantity of light emission is detected directly to control the energy, thereby taking an invariable stable copy.
COPYRIGHT: (C)1988,JPO&Japio
JP61272500A 1986-11-14 1986-11-14 Thermal copying device Pending JPS63125928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61272500A JPS63125928A (en) 1986-11-14 1986-11-14 Thermal copying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61272500A JPS63125928A (en) 1986-11-14 1986-11-14 Thermal copying device

Publications (1)

Publication Number Publication Date
JPS63125928A true JPS63125928A (en) 1988-05-30

Family

ID=17514773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61272500A Pending JPS63125928A (en) 1986-11-14 1986-11-14 Thermal copying device

Country Status (1)

Country Link
JP (1) JPS63125928A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273624U (en) * 1988-11-25 1990-06-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0273624U (en) * 1988-11-25 1990-06-05

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