GB1391194A - Method of and apparatus for automatically controlling the speed at which an original and copying material pass through a copying machine - Google Patents

Method of and apparatus for automatically controlling the speed at which an original and copying material pass through a copying machine

Info

Publication number
GB1391194A
GB1391194A GB1830572A GB1830572A GB1391194A GB 1391194 A GB1391194 A GB 1391194A GB 1830572 A GB1830572 A GB 1830572A GB 1830572 A GB1830572 A GB 1830572A GB 1391194 A GB1391194 A GB 1391194A
Authority
GB
United Kingdom
Prior art keywords
original
signal
speed
translucency
copying
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.)
Expired
Application number
GB1830572A
Other languages
English (en)
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
Priority claimed from DE2119373A external-priority patent/DE2119373C3/de
Priority claimed from DE19722204339 external-priority patent/DE2204339C3/de
Priority claimed from DE19722204338 external-priority patent/DE2204338C3/de
Priority claimed from DE19722204336 external-priority patent/DE2204336C3/de
Priority claimed from DE19722204337 external-priority patent/DE2204337C3/de
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of GB1391194A publication Critical patent/GB1391194A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
GB1830572A 1971-04-22 1972-04-20 Method of and apparatus for automatically controlling the speed at which an original and copying material pass through a copying machine Expired GB1391194A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2119373A DE2119373C3 (de) 1971-04-22 1971-04-22 Lichtpausmaschine für raumlich getrennte Vorlagen
DE19722204339 DE2204339C3 (de) 1972-01-31 1972-01-31 Lichtpausmaschine mit räumlich getrennten Vorlagen
DE19722204338 DE2204338C3 (de) 1972-01-31 1972-01-31 Lichtpausmaschine mit räumlich getrennten Vorlagen
DE19722204336 DE2204336C3 (de) 1972-01-31 1972-01-31 Lichtpausmaschine mit räumlich getrennten Vorlagen
DE19722204337 DE2204337C3 (de) 1972-01-31 1972-01-31 Lichtpausmaschine für räumlich getrennte Vorlagen

Publications (1)

Publication Number Publication Date
GB1391194A true GB1391194A (en) 1975-04-16

Family

ID=27510160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1830572A Expired GB1391194A (en) 1971-04-22 1972-04-20 Method of and apparatus for automatically controlling the speed at which an original and copying material pass through a copying machine

Country Status (8)

Country Link
AT (2) AT346694B (enrdf_load_stackoverflow)
BE (1) BE782428A (enrdf_load_stackoverflow)
CA (1) CA971411A (enrdf_load_stackoverflow)
CH (1) CH536500A (enrdf_load_stackoverflow)
FR (1) FR2136598A5 (enrdf_load_stackoverflow)
GB (1) GB1391194A (enrdf_load_stackoverflow)
IT (1) IT986879B (enrdf_load_stackoverflow)
NL (1) NL7204884A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138582A (en) * 1983-02-28 1984-10-24 Canon Kk Image Reproducing Apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138582A (en) * 1983-02-28 1984-10-24 Canon Kk Image Reproducing Apparatus

Also Published As

Publication number Publication date
AT346694B (de) 1978-11-27
AT343172B (de) 1978-03-15
ATA19776A (de) 1977-09-15
IT986879B (it) 1975-01-30
ATA343172A (de) 1978-03-15
FR2136598A5 (enrdf_load_stackoverflow) 1972-12-22
CA971411A (en) 1975-07-22
CH536500A (de) 1973-04-30
BE782428A (fr) 1972-10-20
NL7204884A (enrdf_load_stackoverflow) 1972-10-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee