GB2005197A - Electrographic printing apparatus - Google Patents

Electrographic printing apparatus

Info

Publication number
GB2005197A
GB2005197A GB7839221A GB7839221A GB2005197A GB 2005197 A GB2005197 A GB 2005197A GB 7839221 A GB7839221 A GB 7839221A GB 7839221 A GB7839221 A GB 7839221A GB 2005197 A GB2005197 A GB 2005197A
Authority
GB
United Kingdom
Prior art keywords
paper
sides
electrodes
latent images
bath
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
GB7839221A
Other versions
GB2005197B (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.)
Bull HN Information Systems Italia SpA
Bull HN Information Systems Inc
Original Assignee
Honeywell Information Systems Italia SpA
Honeywell Information Systems 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
Priority claimed from US05/839,692 external-priority patent/US4161141A/en
Priority claimed from US05/839,714 external-priority patent/US4165686A/en
Application filed by Honeywell Information Systems Italia SpA, Honeywell Information Systems Inc filed Critical Honeywell Information Systems Italia SpA
Publication of GB2005197A publication Critical patent/GB2005197A/en
Application granted granted Critical
Publication of GB2005197B publication Critical patent/GB2005197B/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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/39—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material

Abstract

A conductive paper with a dielectric plastic coating on both sides is printed on both sides. Latent images containing variable information are formed on each side by electrode structures 305, 305A each comprising a plurality of rows of spaced-apart electrodes, with electrodes in successive rows being staggered. The electrodes may be elongated in a direction transverse to the paper feed direction and energized to form elongated images. Format rollers 307 and 307A apply predetermined formats to the two sides of the paper, forming latent images, by charging it, in co-operation with a common bias roller 309, offset from both format rollers. The latent images are developed in a toner station 350 where the paper passes through a bath of toner liquid, which contains suspended particles. The bath level can be lowered for one- sided printing. <IMAGE>
GB7839221A 1977-10-05 1978-10-04 Electrographic printing apparaus Expired GB2005197B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/839,692 US4161141A (en) 1977-10-05 1977-10-05 Two side multi roller toner station for electrographic non-impact printer
US05/839,714 US4165686A (en) 1977-10-05 1977-10-05 Two-sided non-impact printing system

Publications (2)

Publication Number Publication Date
GB2005197A true GB2005197A (en) 1979-04-19
GB2005197B GB2005197B (en) 1982-03-03

Family

ID=27126133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839221A Expired GB2005197B (en) 1977-10-05 1978-10-04 Electrographic printing apparaus

Country Status (1)

Country Link
GB (1) GB2005197B (en)

Also Published As

Publication number Publication date
GB2005197B (en) 1982-03-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921004