JPS5767947A - Regist controller - Google Patents

Regist controller

Info

Publication number
JPS5767947A
JPS5767947A JP55144144A JP14414480A JPS5767947A JP S5767947 A JPS5767947 A JP S5767947A JP 55144144 A JP55144144 A JP 55144144A JP 14414480 A JP14414480 A JP 14414480A JP S5767947 A JPS5767947 A JP S5767947A
Authority
JP
Japan
Prior art keywords
turned
constant circuit
timing
time constant
time
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
JP55144144A
Other languages
Japanese (ja)
Inventor
Akio Katsumata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
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 JP55144144A priority Critical patent/JPS5767947A/en
Publication of JPS5767947A publication Critical patent/JPS5767947A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/14—Electronic sequencing control

Abstract

PURPOSE:To facilitate the easy control of regist and at the same time to simplify a structure, by using one timing generating means and carrying out the control of regist with plural copying magnification ratios while the timing generating means is kept fixed. CONSTITUTION:During the real size copying, a transistor (TR) 1 is turned on by the real size signal. And a TR4 is also turned on via a resistance R1. Thus a time constant circuit is formed with a variable resistance VR1 and a capacitor C1. A time constant circuit is formed in the same way also when the copying magnification ratio is selected at a variable magnification rate of 1 or alpha. In other words, the time constant circuit is switched according to the copying magnification. A timer IC-IC1 is triggered by a timing switch SW while an optical system is scanned to start counting and to deliver an output of high potential for time T which is decided by the time constant circuit. A DEF-IC2 is set at the trailing edge of the output of the IC1 and accordingly delivers the high potential in the lapse of time T after the SW is turned on. Then a TR7 is led out, and a timing driving clutch CL is turned on to start the revolution of a timing roller.
JP55144144A 1980-10-14 1980-10-14 Regist controller Pending JPS5767947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144144A JPS5767947A (en) 1980-10-14 1980-10-14 Regist controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144144A JPS5767947A (en) 1980-10-14 1980-10-14 Regist controller

Publications (1)

Publication Number Publication Date
JPS5767947A true JPS5767947A (en) 1982-04-24

Family

ID=15355239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144144A Pending JPS5767947A (en) 1980-10-14 1980-10-14 Regist controller

Country Status (1)

Country Link
JP (1) JPS5767947A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943959U (en) * 1982-09-14 1984-03-23 松下電器産業株式会社 Copy paper conveyance device
JPS61173261A (en) * 1985-01-29 1986-08-04 Fuji Xerox Co Ltd Transfer position controlling device of copying paper
JPS61281253A (en) * 1985-05-22 1986-12-11 ゼロツクス　コ−ポレ−シヨン Control of sheet feeder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943959U (en) * 1982-09-14 1984-03-23 松下電器産業株式会社 Copy paper conveyance device
JPS61173261A (en) * 1985-01-29 1986-08-04 Fuji Xerox Co Ltd Transfer position controlling device of copying paper
JPS61281253A (en) * 1985-05-22 1986-12-11 ゼロツクス　コ−ポレ−シヨン Control of sheet feeder

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