GB1110077A - Lamp control means - Google Patents

Lamp control means

Info

Publication number
GB1110077A
GB1110077A GB5298765A GB5298765A GB1110077A GB 1110077 A GB1110077 A GB 1110077A GB 5298765 A GB5298765 A GB 5298765A GB 5298765 A GB5298765 A GB 5298765A GB 1110077 A GB1110077 A GB 1110077A
Authority
GB
United Kingdom
Prior art keywords
lamp
contact
rollers
capacitor
energized
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
GB5298765A
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.)
Viewlex Inc
Original Assignee
Viewlex Inc
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 Viewlex Inc filed Critical Viewlex Inc
Publication of GB1110077A publication Critical patent/GB1110077A/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
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/30—Details adapted to be combined with processing apparatus
    • G03B27/306—Heat development
    • 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
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
    • 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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

1,110,077. Thermographic contact printing. VIEWLEX Inc. Dec.14, 1965 [May 4, 1965 to No.52987/65. Heading G2A. Original and copy sheets are passed together between rollers 1 and 2, roller 2 being a glass cylinder within which is a heat lamp 3 focused by a reflector on to the line of contact between the rollers. On the shaft 4 of roller 1 is a cam 5, which, as it rotates, engages against the central blade 6 of a switch 7, causing it to touch alternately one contact (8) and then the other (9) of the switch Fig. 2 (not shown). When contact (6, 8) is closed, a capacitor (10) is charged up from a power source. On breaking this contact and closing the other contact (6, 9), a solenoid (14) is energized, closing a relay contact (15) and so connecting the lamp to the mains supply. The lamp is now energized, and remains on for a period slightly greater than one complete rotation of the rollers, this period being determined by the values of the capacitor (13) and the solenoid. Thus before the lamp is de-energized again, switch 7 has operated to charge up the capacitor (13) once more, and so the lamp remains on. If for any reason the rollers stop rotating, capacitor (13) is not re-charged once it has lost its charge, so that relay (15) is also de-energized and the lamp circuit is broken. Thus if the rollers stop, the lamp is automatically switched off, so preventing damage to the stationary rollers and sheets by overheating.
GB5298765A 1965-05-04 1965-12-14 Lamp control means Expired GB1110077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45304565 US3272967A (en) 1965-05-04 1965-05-04 Lamp control means

Publications (1)

Publication Number Publication Date
GB1110077A true GB1110077A (en) 1968-04-18

Family

ID=23798991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5298765A Expired GB1110077A (en) 1965-05-04 1965-12-14 Lamp control means

Country Status (5)

Country Link
US (1) US3272967A (en)
CH (1) CH468258A (en)
DK (1) DK113444B (en)
GB (1) GB1110077A (en)
NL (1) NL6603026A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897692A (en) * 1988-04-08 1990-01-30 Xerox Corporation Fail safe fuser lamp control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2859960A (en) * 1956-06-07 1958-11-11 Purdy Frederick A Electrical control responsive to successive circuit interruptions
US3053962A (en) * 1960-08-01 1962-09-11 Xerox Corp Xerographic fusing apparatus
US3100252A (en) * 1960-12-16 1963-08-06 Hogan Faximile Corp Recorder drying mechanism
US3164717A (en) * 1962-10-23 1965-01-05 Bohn Business Machines Inc Heating control device

Also Published As

Publication number Publication date
US3272967A (en) 1966-09-13
DK113444B (en) 1969-03-24
CH468258A (en) 1969-02-15
NL6603026A (en) 1966-11-07

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