GB1313016A - Copying apparatus - Google Patents

Copying apparatus

Info

Publication number
GB1313016A
GB1313016A GB4231870A GB4231870A GB1313016A GB 1313016 A GB1313016 A GB 1313016A GB 4231870 A GB4231870 A GB 4231870A GB 4231870 A GB4231870 A GB 4231870A GB 1313016 A GB1313016 A GB 1313016A
Authority
GB
United Kingdom
Prior art keywords
shield
sept
copying apparatus
light
coverable
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
GB4231870A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1313016A publication Critical patent/GB1313016A/en
Expired 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
    • G03G15/0435—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)
  • Projection Apparatus (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1313016 Photographic projection apparatus XEROX CORP 21 Sept 1970 [22 Sept 1969] 42318/72 Divided out of 1313015 Heading G2A The description is the same as in Specification 1313015, but the claims relate to copying apparatus having a light shield adjacent the light receiving surface, said shield having a field stop opening which is coverable by an opaque member to render the shield light tight.
GB4231870A 1969-09-22 1970-09-21 Copying apparatus Expired GB1313016A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85992969A 1969-09-22 1969-09-22

Publications (1)

Publication Number Publication Date
GB1313016A true GB1313016A (en) 1973-04-11

Family

ID=25332080

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4485270A Expired GB1313015A (en) 1969-09-22 1970-09-21 Copying apparatus
GB4231870A Expired GB1313016A (en) 1969-09-22 1970-09-21 Copying apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4485270A Expired GB1313015A (en) 1969-09-22 1970-09-21 Copying apparatus

Country Status (15)

Country Link
JP (1) JPS4944907B1 (en)
BE (1) BE756479A (en)
CA (1) CA918476A (en)
CH (1) CH514864A (en)
CS (1) CS168540B2 (en)
DE (1) DE2045593C3 (en)
ES (1) ES383847A1 (en)
FR (1) FR2063170B1 (en)
GB (2) GB1313015A (en)
GT (1) GT197017787A (en)
HU (1) HU169195B (en)
NL (1) NL164682C (en)
PL (1) PL81004B1 (en)
SE (1) SE367490B (en)
SU (1) SU371737A3 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062094A (en) * 1958-12-29 1962-11-06 Xerox Corp Electrophotographic copying apparatus

Also Published As

Publication number Publication date
PL81004B1 (en) 1975-08-30
SE367490B (en) 1974-05-27
NL164682C (en) 1981-01-15
BE756479A (en) 1971-03-22
DE2045593B2 (en) 1981-08-27
JPS4944907B1 (en) 1974-11-30
ES383847A1 (en) 1973-03-01
GT197017787A (en) 1972-02-12
NL7013805A (en) 1971-03-24
DE2045593C3 (en) 1982-04-22
SU371737A3 (en) 1973-02-22
CH514864A (en) 1971-10-31
FR2063170B1 (en) 1973-01-12
CA918476A (en) 1973-01-09
HU169195B (en) 1976-10-28
CS168540B2 (en) 1976-06-29
DE2045593A1 (en) 1971-04-01
GB1313015A (en) 1973-04-11
FR2063170A1 (en) 1971-07-09
NL164682B (en) 1980-08-15

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee