GB1543412A - Liquid droplet recording apparatus - Google Patents

Liquid droplet recording apparatus

Info

Publication number
GB1543412A
GB1543412A GB2375976A GB2375976A GB1543412A GB 1543412 A GB1543412 A GB 1543412A GB 2375976 A GB2375976 A GB 2375976A GB 2375976 A GB2375976 A GB 2375976A GB 1543412 A GB1543412 A GB 1543412A
Authority
GB
United Kingdom
Prior art keywords
droplets
printing
protective
sequences
ink jet
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
GB2375976A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Priority claimed from US05/686,421 external-priority patent/US4086601A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1543412A publication Critical patent/GB1543412A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/075—Ink jet characterised by jet control for many-valued deflection

Abstract

In order to improve the aerodynamic conditions when printing with ink jet printers, protective droplets are inserted, according to a predetermined pattern, into the sequences of droplets intended for printing. In this process, the number of protective droplets to be inserted between every two printing droplets is dependent on the position of the droplets in the sequence. The ink jet printer has control circuits which comprise a shift register (83) whose memory locations contain in each case the character information assigned to the droplet positions of a coordinate of the character matrix, and circuits (100, 101, 106) for controlling the sequences of droplets for the white and black segments of the characters. The output of one of the control circuits (101) is connected to the shift input of the shift register (83) in order to interrupt the continuation of the same during the production of the protective droplets. <IMAGE>
GB2375976A 1975-06-16 1976-06-09 Liquid droplet recording apparatus Expired GB1543412A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58746475A 1975-06-16 1975-06-16
US67178076A 1976-03-30 1976-03-30
US05/686,421 US4086601A (en) 1976-03-30 1976-05-24 Sequential ink jet printing system with variable number of guard drops

Publications (1)

Publication Number Publication Date
GB1543412A true GB1543412A (en) 1979-04-04

Family

ID=27416500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2375976A Expired GB1543412A (en) 1975-06-16 1976-06-09 Liquid droplet recording apparatus

Country Status (6)

Country Link
JP (1) JPS5231744A (en)
AU (1) AU501579B2 (en)
CH (1) CH628287A5 (en)
DE (1) DE2626529C3 (en)
GB (1) GB1543412A (en)
IT (1) IT1070425B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142070A (en) * 1980-04-04 1981-11-06 Matsushita Giken Kk Driving method of ink gun
JPS5763272A (en) * 1980-10-04 1982-04-16 Ricoh Co Ltd Character height adjusting method in charge deflection type ink jet recording apparatus
DE3416449A1 (en) * 1983-08-01 1985-02-14 Veb Kombinat Robotron, Ddr 8012 Dresden Method for recording information or images by means of ink jet printers
DE102006045060A1 (en) 2006-09-21 2008-04-10 Kba-Metronic Ag Method and apparatus for producing variable drop volume ink drops

Also Published As

Publication number Publication date
IT1070425B (en) 1985-03-29
DE2626529B2 (en) 1979-12-06
CH628287A5 (en) 1982-02-26
AU501579B2 (en) 1979-06-21
JPS5523547B2 (en) 1980-06-24
AU1508576A (en) 1978-01-05
JPS5231744A (en) 1977-03-10
DE2626529C3 (en) 1980-08-07
DE2626529A1 (en) 1976-12-30

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920609