JPH02103527A - Exposure lamp controlling method - Google Patents

Exposure lamp controlling method

Info

Publication number
JPH02103527A
JPH02103527A JP63258222A JP25822288A JPH02103527A JP H02103527 A JPH02103527 A JP H02103527A JP 63258222 A JP63258222 A JP 63258222A JP 25822288 A JP25822288 A JP 25822288A JP H02103527 A JPH02103527 A JP H02103527A
Authority
JP
Japan
Prior art keywords
original
exposure lamp
scanner
scanning
exposing
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
JP63258222A
Other languages
Japanese (ja)
Other versions
JP2746391B2 (en
Inventor
Shuichi Yamazaki
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP63258222A priority Critical patent/JP2746391B2/en
Publication of JPH02103527A publication Critical patent/JPH02103527A/en
Application granted granted Critical
Publication of JP2746391B2 publication Critical patent/JP2746391B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To shorten the time required for stabilizing light intensity while the temperature of the exposure lamp is prevented from excessively rising by controlling the exposure lamp in continuous lighting condition with lower electric power when a scanner moves in other direction than when the scanner moves in one direction, at the time of exposing and scanning an original continuously. CONSTITUTION:The original 2 is placed on an original platen 1. At the time of exposing and scanning the original the scanner constituted of the exposure lamp 3 and mirrors 4-6, first, activates in a home position HP. After the scanner rises at a fixed speed during moving in the lift direction of a prescribed approaching distance, it starts exposing and scanning the original 2 from a leading edge part LE corresponding to the leading edge of the original 2. Then, after exposing and scanning the original, the scanner returns from a returning position RT to the home position HP, repeats the reciprocating motion, and continuously exposes and scans the original. When the scanner moves in other direction to continuously expose and scan the original, the exposure lamp is controlled in the continuous lighting condition with lower electric power than when the scanner moves in the one direction. Thus, the time required to stabilize the light intensity of the exposure lamp can be shortened by preventing the temperature of the exposure lamp from excessively rising.
JP63258222A 1988-10-13 1988-10-13 Exposure scanning device Expired - Fee Related JP2746391B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63258222A JP2746391B2 (en) 1988-10-13 1988-10-13 Exposure scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63258222A JP2746391B2 (en) 1988-10-13 1988-10-13 Exposure scanning device

Publications (2)

Publication Number Publication Date
JPH02103527A true JPH02103527A (en) 1990-04-16
JP2746391B2 JP2746391B2 (en) 1998-05-06

Family

ID=17317216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63258222A Expired - Fee Related JP2746391B2 (en) 1988-10-13 1988-10-13 Exposure scanning device

Country Status (1)

Country Link
JP (1) JP2746391B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002281247A (en) * 2001-03-15 2002-09-27 Canon Inc Image signal processing apparatus and method, image reading system, and program and medium
JP2009036319A (en) * 2007-08-02 2009-02-19 Nsk Ltd Bearing device and assembly method for bearing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58184942A (en) * 1982-04-22 1983-10-28 Canon Inc Illuminating device
JPS62238549A (en) * 1986-04-10 1987-10-19 Minolta Camera Co Ltd Exposing lamp control device for copying machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58184942A (en) * 1982-04-22 1983-10-28 Canon Inc Illuminating device
JPS62238549A (en) * 1986-04-10 1987-10-19 Minolta Camera Co Ltd Exposing lamp control device for copying machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002281247A (en) * 2001-03-15 2002-09-27 Canon Inc Image signal processing apparatus and method, image reading system, and program and medium
JP4630476B2 (en) * 2001-03-15 2011-02-09 キヤノン株式会社 Image signal processing apparatus, image signal processing method, image reading system, program, and medium
JP2009036319A (en) * 2007-08-02 2009-02-19 Nsk Ltd Bearing device and assembly method for bearing device

Also Published As

Publication number Publication date
JP2746391B2 (en) 1998-05-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees