WO2002014077B1 - Method and apparatus for ensuring output print quality - Google Patents

Method and apparatus for ensuring output print quality

Info

Publication number
WO2002014077B1
WO2002014077B1 PCT/US2001/025541 US0125541W WO0214077B1 WO 2002014077 B1 WO2002014077 B1 WO 2002014077B1 US 0125541 W US0125541 W US 0125541W WO 0214077 B1 WO0214077 B1 WO 0214077B1
Authority
WO
WIPO (PCT)
Prior art keywords
image
printed
print
signals
scanning
Prior art date
Application number
PCT/US2001/025541
Other languages
French (fr)
Other versions
WO2002014077A1 (en
Inventor
Kevin G Currans
John A Bertani
John M Kerr
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Priority to AU2001286490A priority Critical patent/AU2001286490A1/en
Publication of WO2002014077A1 publication Critical patent/WO2002014077A1/en
Publication of WO2002014077B1 publication Critical patent/WO2002014077B1/en

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
    • 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

Abstract

Printed image output quality can be guaranteed by using an optical scanner (300) to read image output quality from a printer (200) in real time. In one embodiment, a registration mark (410, 412, 414, 416), preferably comprised of at least one pixel of each color of a multi color print head, printed in the margin (406, 408) can be optically scanned by a scanning device (216, 300) mounted along side the print element (214). In another embodiment, a complete image (504) can be scanned one line at a time pixel by pixel by the optical scanner as an image is painted by a print mechanism.

Claims

AMENDED CLAIMS[received by the International Bureau on 25 February 2002 (25.02.02); original claims 1-8 amended (2 pages)]
1. A method of ensuring print quality of a printed image comprising the steps of : printing at least a portion of an image on a medium in response to a first set of image print signals (704), said portion of said image being printed in the margin of the printed image either before or after each line of said image is printed; scanning the printed portion of said image (706) on said medium by a scanner, thereby producing a second set of signals (708) representing the image that was printed on said medium; comparing said first set of signals to said second set of signals (710); enabling said printer to print said image upon the determination that said portion of the image was properly printed (712).
2. The method of claim 1 wherein said step of enabling said printer to print said image is comprises the step of adjusting printer output (712) such that the image substantially matches the image represented by said image print signals.
3. The method of claim 1 wherein said step of scanning the portion of an image on said medium is further comprises the steps of: optically scanning the portion and reading output signals (708) from an electronic image scanner (218, 300) coupled to said print mechanism (208) electronically scanning images printed onto said medium (202) by said print mechanism (208).
4. The method of claim 1 wherein said step of scanning the portion of an image (706) comprises the step of optically scanning at least portions of a printed page
(202) using a fixed optical scanner.
5. The method of claim 1 wherein said step of optically scanning a portion of the image comprises the step of scanning using a page wide array scanning mechanism 300.
6. The method of claim 1 wherein said step of enabling said printer to print said image comprises the step of adjusting the printer output.
12
7. An apparatus for monitoring output print quality of a printed image, said apparatus comprising a print mechanism (208) coupled to a print mechanism position controller (218); a scanner (216) operatively coupled to said print mechanism (208); a controller (220) having an input for receiving printing control signals from a computer (100), an input for receiving signals from said scanner (216) and an output coupled to said print mechanism position controller (218), said controller comparing signals received from a computer defining an image (504) to be printed to signals from said scanner representing an image that was actually printed, said image that was actually printed being printed in the margin of the printed image either before or after each line of said printed image is printed.
8. An apparatus in accordance with claim 7 further comprising: said print mechanism including a moveable ink jet print head having a plurality of printing elements (602), each printing element being capable of depositing ink drops on a print medium (20) so as to produce an image (504) on said print medium; and an ink reservoir (600), operatively coupled to said plurality of printing elements (602) and providing ink thereto, whereby said scanner substantially continuously scans ink drops deposited onto a predetermined portion of said print media under the control of said controller.
13
PCT/US2001/025541 2000-08-17 2001-08-14 Method and apparatus for ensuring output print quality WO2002014077A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001286490A AU2001286490A1 (en) 2000-08-17 2001-08-14 Method and apparatus for ensuring output print quality

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64161500A 2000-08-17 2000-08-17
US09/641,615 2000-08-17

Publications (2)

Publication Number Publication Date
WO2002014077A1 WO2002014077A1 (en) 2002-02-21
WO2002014077B1 true WO2002014077B1 (en) 2002-07-18

Family

ID=24573118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/025541 WO2002014077A1 (en) 2000-08-17 2001-08-14 Method and apparatus for ensuring output print quality

Country Status (2)

Country Link
AU (1) AU2001286490A1 (en)
WO (1) WO2002014077A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8804157B2 (en) * 2011-04-06 2014-08-12 International Business Machines Corporation Print quality verification system for detecting a mismatch in a printed document
WO2014029418A1 (en) * 2012-08-20 2014-02-27 Hewlett-Packard Indigo Bv Color registration calibration method for a printer apparatus
BR112019003020B1 (en) 2016-08-19 2023-01-24 Levi Strauss & Co METHOD FOR LASER FINISHING OF CLOTHING
US10921968B2 (en) 2017-10-31 2021-02-16 Levi Strauss & Co. Laser finishing design tool with image preview
US11952693B2 (en) 2017-10-31 2024-04-09 Levi Strauss & Co. Using neural networks in laser finishing of apparel
GB2568494B (en) * 2017-11-17 2021-07-28 Pyramid Innovation Ltd A method of marking a laboratory sample carrier and checking the quality of the printing
WO2019168879A1 (en) 2018-02-27 2019-09-06 Levi Strauss & Co. On-demand manufacturing of laser-finished apparel
EP3759580A4 (en) 2018-02-27 2021-11-24 Levi Strauss & Co. Laser finishing design tool
WO2020033605A1 (en) 2018-08-07 2020-02-13 Levi Strauss & Co. Outdoor retail space structure
EP3887593A4 (en) 2018-11-30 2022-10-05 Levi Strauss & Co. Shadow neutral 3-d garment rendering
WO2021016497A1 (en) 2019-07-23 2021-01-28 Levi Strauss & Co. Three-dimensional rendering preview of laser-finished garments

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262797A (en) * 1990-04-04 1993-11-16 Hewlett-Packard Company Monitoring and controlling quality of pen markings on plotting media
US5289208A (en) 1991-10-31 1994-02-22 Hewlett-Packard Company Automatic print cartridge alignment sensor system
US5532825A (en) 1993-08-30 1996-07-02 Hewlett-Packard Company Add-on scanner for existing ink jet printer
EP0858897B1 (en) * 1995-10-18 2003-04-09 Copyer Co., Ltd. Ink type image forming device
JP3376223B2 (en) * 1996-11-08 2003-02-10 キヤノン株式会社 Recording head correction method and apparatus
US6036298A (en) * 1997-06-30 2000-03-14 Hewlett-Packard Company Monochromatic optical sensing system for inkjet printing
US6213580B1 (en) * 1998-02-25 2001-04-10 Xerox Corporation Apparatus and method for automatically aligning print heads
US6612676B1 (en) * 1998-11-17 2003-09-02 Pitney Bowes Inc. Apparatus and method for real-time measurement of digital print quality

Also Published As

Publication number Publication date
AU2001286490A1 (en) 2002-02-25
WO2002014077A1 (en) 2002-02-21

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