JPS62238549A - Exposing lamp control device for copying machine - Google Patents

Exposing lamp control device for copying machine

Info

Publication number
JPS62238549A
JPS62238549A JP61081089A JP8108986A JPS62238549A JP S62238549 A JPS62238549 A JP S62238549A JP 61081089 A JP61081089 A JP 61081089A JP 8108986 A JP8108986 A JP 8108986A JP S62238549 A JPS62238549 A JP S62238549A
Authority
JP
Japan
Prior art keywords
light
time
data
exposing
copy
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
Application number
JP61081089A
Other languages
Japanese (ja)
Other versions
JPH077183B2 (en
Inventor
Kaoru Hashimoto
Koji Ito
Original Assignee
Minolta Camera 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 Minolta Camera Co Ltd filed Critical Minolta Camera Co Ltd
Priority to JP61081089A priority Critical patent/JPH077183B2/en
Publication of JPS62238549A publication Critical patent/JPS62238549A/en
Publication of JPH077183B2 publication Critical patent/JPH077183B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To suppress a temperature rise of an original platen surface by dimming an exposing lamp instead of turning it off at the time of reset of a scanning optical system, so that it becomes a set value, based on a preliminary turn-on data and an exposure data at the time of the next scan. CONSTITUTION:At the time of an operation of a copying machine, a correct exposure quantity is selected by a key input in accordance with variable density of an original, but an exposure data and a preliminary turn-on data in a storage means 6 are selected, and based on these data, the light quantity of an exposing lamp 4 is controlled so that a set light quantity at the time of exposure, and a preliminary turn-on light quantity at the time of preliminary turn-on can be obtained. When the copying machine enters into a copying operation, a light quantity control operation time control means 8 decides a multi-copy or not from the number of copy sheets, which has been inputted, and commands to dim a light beam to a set light quantity, to a light quantity control means. In this way, at the time of a multi-copy work, during a reset time of a scan optical system, extending from the end of an exposing operation to entering into an exposing operation for the next copy, the light quantity of the exposing lamp 4 is dimmed, therefore, even in case of a continuous copying work, a temperature rise of the original platen surface can be suppressed low.
JP61081089A 1986-04-10 1986-04-10 Exposure lamp control device for copiers Expired - Lifetime JPH077183B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61081089A JPH077183B2 (en) 1986-04-10 1986-04-10 Exposure lamp control device for copiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61081089A JPH077183B2 (en) 1986-04-10 1986-04-10 Exposure lamp control device for copiers

Publications (2)

Publication Number Publication Date
JPS62238549A true JPS62238549A (en) 1987-10-19
JPH077183B2 JPH077183B2 (en) 1995-01-30

Family

ID=13736663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61081089A Expired - Lifetime JPH077183B2 (en) 1986-04-10 1986-04-10 Exposure lamp control device for copiers

Country Status (1)

Country Link
JP (1) JPH077183B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103527A (en) * 1988-10-13 1990-04-16 Ricoh Co Ltd Exposure lamp controlling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02103527A (en) * 1988-10-13 1990-04-16 Ricoh Co Ltd Exposure lamp controlling method

Also Published As

Publication number Publication date
JPH077183B2 (en) 1995-01-30

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term