ES8601018A1 - A method and device for printing quality control. - Google Patents
A method and device for printing quality control.Info
- Publication number
- ES8601018A1 ES8601018A1 ES536508A ES536508A ES8601018A1 ES 8601018 A1 ES8601018 A1 ES 8601018A1 ES 536508 A ES536508 A ES 536508A ES 536508 A ES536508 A ES 536508A ES 8601018 A1 ES8601018 A1 ES 8601018A1
- Authority
- ES
- Spain
- Prior art keywords
- test character
- dot matrix
- head
- quality control
- printing quality
- 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
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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
Abstract
Characters are printed on the paper (1) by the printing head (2) of a dot matrix or ink jet printer. The head also prints a predefined dot matrix test character (3) in a predetermined area of the left hand margin for each line of print. On each line shift the test character (3) is illuminated by a light emitting diode as it passes under a row of photo diodes that are arranged to read in turn each dot comprising the test character. - The number of dots registered by the diode sensing device is compared with the number of printing elements in the printing head and if there is a difference a signal circuit initiates an alarm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8305478A SE439132B (en) | 1983-10-05 | 1983-10-05 | PRINT QUALITY CONTROL SET AND DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8601018A1 true ES8601018A1 (en) | 1985-10-16 |
ES536508A0 ES536508A0 (en) | 1985-10-16 |
Family
ID=20352776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES536508A Granted ES536508A0 (en) | 1983-10-05 | 1984-10-04 | A METHOD OF CHECKING THE QUALITY OF TYPEWRITING MACHINES, PREFERABLY MATRIX OR INK JET PRINTERS |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0157851B1 (en) |
JP (1) | JPH0653426B2 (en) |
CA (1) | CA1266710A (en) |
DE (1) | DE3468371D1 (en) |
DK (1) | DK163648C (en) |
ES (1) | ES536508A0 (en) |
FI (1) | FI81303C (en) |
IT (1) | IT1176886B (en) |
SE (1) | SE439132B (en) |
WO (1) | WO1985001476A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8621335D0 (en) * | 1986-09-04 | 1986-10-15 | Roneo Alcatel Ltd | Printing devices |
US5173850A (en) * | 1988-02-12 | 1992-12-22 | Hitachi, Ltd. | Apparatus and method for checking print quality of turnaround medium |
JP3049663B2 (en) * | 1991-02-20 | 2000-06-05 | キヤノン株式会社 | Recording device and recording method |
ATE144201T1 (en) * | 1991-05-14 | 1996-11-15 | Canon Kk | METHOD AND DEVICE FOR PRESSURE ESTIMATION |
JP3229431B2 (en) * | 1992-05-28 | 2001-11-19 | キヤノン株式会社 | Patent application title: RECORDING DEVICE AND METHOD OF JUDGING RECORDING STATE OF RECORDING DEVICE |
US5397192A (en) * | 1993-11-01 | 1995-03-14 | Hewlett-Packard Company | Shuttle-type printers and methods for operating same |
JPH08127139A (en) * | 1994-10-31 | 1996-05-21 | Nec Field Service Ltd | Dot impact serial printer |
AUPN232795A0 (en) * | 1995-04-12 | 1995-05-04 | Eastman Kodak Company | Detection of faulty nozzles in printing heads |
US6542622B1 (en) | 1999-08-30 | 2003-04-01 | Eastman Kodak Company | Methods and articles for determining invisible ink print quality |
US9333783B1 (en) * | 2015-07-13 | 2016-05-10 | Toshiba Tec Kabushiki Kaisha | Printer apparatus |
CN116096582A (en) * | 2020-07-21 | 2023-05-09 | 惠普发展公司,有限责任合伙企业 | Printing control |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5910311B2 (en) * | 1977-04-19 | 1984-03-08 | 沖電気工業株式会社 | dot printer |
US4339208A (en) * | 1980-09-25 | 1982-07-13 | Ncr Corporation | Optical sensing of wire matrix printers |
-
1983
- 1983-10-05 SE SE8305478A patent/SE439132B/en not_active IP Right Cessation
-
1984
- 1984-09-28 EP EP84903675A patent/EP0157851B1/en not_active Expired
- 1984-09-28 DE DE8484903675T patent/DE3468371D1/en not_active Expired
- 1984-09-28 JP JP59503648A patent/JPH0653426B2/en not_active Expired - Lifetime
- 1984-09-28 WO PCT/SE1984/000321 patent/WO1985001476A1/en active IP Right Grant
- 1984-10-03 CA CA000464672A patent/CA1266710A/en not_active Expired
- 1984-10-04 ES ES536508A patent/ES536508A0/en active Granted
- 1984-10-05 IT IT23040/84A patent/IT1176886B/en active
-
1985
- 1985-05-13 FI FI851883A patent/FI81303C/en not_active IP Right Cessation
- 1985-06-03 DK DK249985A patent/DK163648C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI851883A0 (en) | 1985-05-13 |
DE3468371D1 (en) | 1988-02-11 |
FI851883L (en) | 1985-05-13 |
JPH0653426B2 (en) | 1994-07-20 |
WO1985001476A1 (en) | 1985-04-11 |
IT1176886B (en) | 1987-08-18 |
IT8423040A0 (en) | 1984-10-05 |
DK163648C (en) | 1992-08-17 |
IT8423040A1 (en) | 1986-04-05 |
SE8305478D0 (en) | 1983-10-05 |
SE8305478L (en) | 1985-04-06 |
JPS61500110A (en) | 1986-01-23 |
CA1266710A (en) | 1990-03-13 |
EP0157851A1 (en) | 1985-10-16 |
FI81303B (en) | 1990-06-29 |
DK163648B (en) | 1992-03-23 |
DK249985A (en) | 1985-06-03 |
FI81303C (en) | 1990-10-10 |
DK249985D0 (en) | 1985-06-03 |
SE439132B (en) | 1985-06-03 |
EP0157851B1 (en) | 1988-01-07 |
ES536508A0 (en) | 1985-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19990301 |