WO2000032399A1 - Printing mechanism for digital discs - Google Patents
Printing mechanism for digital discs Download PDFInfo
- Publication number
- WO2000032399A1 WO2000032399A1 PCT/IL1999/000630 IL9900630W WO0032399A1 WO 2000032399 A1 WO2000032399 A1 WO 2000032399A1 IL 9900630 W IL9900630 W IL 9900630W WO 0032399 A1 WO0032399 A1 WO 0032399A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disc
- head
- ink jet
- read
- printing
- Prior art date
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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4071—Printing on disk-shaped media, e.g. CDs
Definitions
- This invention relates to a printing mechanism and method for printing desired information on digital discs
- High density, high capacity, disc type of recording media for either data, voice and images is a common thing, appearing in forms known as CDRom, Optical Discs, Magneto Optical discs, Digital Video Discs (DVD),Laser Discs, etc.
- CD-R or CD-WR have a 650 MB capacity, DVD-Ram a 5.2 GB storage, and new magneto-optical discs with 17GB memory have been announced]
- FD Floppy Discs
- High capacity storing discs will thus assume the same role that FD had. They will be used among other things to archives computer files, as storing of certain items of data is more convenient when handled separately from the hard disc in the computer, as well as providing a low cost back up storage. In addition privacy and security considerations will make such storage devices useful in many cases. Therefore, such new flexible storage devices, in particular the low cost CD-R and the slightly more expensive CD-RW are already getting strong presence in the PC market. Furthermore, as manufacturers are planning universal drives that can accommodate all types of discs, they will become useful and common.
- Pre recorded discs such as CD-Rom are sold with a marking of their content printed on the plastic disc. All such discs have one side which is used to read and write data with a laser beam, therefore not accessible to external markings that may block the beam, and another side which is not used to access data and is printable therefore.
- the present invention propose a much cheaper, simpler and smaller ink jet printing mechanism designed specifically to print markings (letters, characters or graphics) directly on discs.
- the mechanism of the invention is designed in such a way that it can be also incorporated into the space occupied by standard CD drives of a PC rather than being offered only as a stand alone printer as the other products mentioned above.
- the present invention utilizes some of the inherent existing components of the disk drive mechanism as part of the print mechanism drive, contrast to stand alone printers which require their own motors and drives for an X-Y movement of the printing head over the disc.
- the apparatus for printing desired information on digital discs comprises an ink jet printing head, comprising a linear movement mechanism for driving the head along a radial axis and a mechanism for rotating the disc, positioned on the side of the disc opposite to that on which read/write operations are carried on or intended to be carried on by laser means.
- the apparatus may be incorporated in the space occupied by a standard CD-RW or CD-R drive.
- at least part of the linear movement mechanism is part of the mechanism for driving the laser head in the read/write operations and/or the mechanism for rotating the.
- disc- is part of the echanism_for driving the disc in the read/write operations.
- the ink jet printing head comprises the nozzles and ink containers, and is in the form of a replaceable cartridge, slidingly and removably mounted on a sliding rod.
- the invention further comprises a method of printing desired information on digital discs by means of an ink jet printing head, which comprising placing the printing head on the side of the disc opposite to that on which read/write operations are carried on or intended to be carried on by laser means and activating the head to eject ink drops onto the disc while linearly displacing said head along a radial axis and for rotating the disc.
- At least one coordinate point is printed on the disc, for determining the sectorial coordinates of the ink jet printing head during the printing of the desired information.
- the coordinate point or points are preferably printed on the inner or outer boundary of the annular configuration of the disc.
- - Fig. 1 is a schematic drawing of such mechanism which contain two motors, and a laser read write head, according to a preferred embodiment of the invention
- - Fig. 2 shows the other side of disc surface which is used for printing, according to a preferred embodiment of the invention
- FIG. 3 shows the ink jet head with row of nozzles and ink containers on its sides, according to a preferred embodiment of the invention
- FIG. 4 shows several of the possibilities to place such markings- a single marker, a 4 mark compass and a ring of markers, according to a preferred embodiment of the invention
- FIG. 5 schematically illustrates an arrangement for pulling out an emptied cartridge and inserting a new one into its place.
- the drive mechanism of discs is structured so that it permit movements of the read write laser element in relation to the disc in a spiral mode in CD-ROM, or in concentric circles in writable devices. That is achieved by two relational movements- a rotatory (circular) one and a linear one, which allow to laser read and write element to reach any point on the disc surface under software control.
- the arrangement allows also that this access ability can be instantaneous.
- Figure 1 is a schematic drawing of such mechanism which contain two motors, and a laser read/write head.
- the disc data surface 1 is scanned by laser head 5.
- This laser head is moving linearly along the radial axis on a sliding rod 4 by linear stepping motor 3, while the disc is rotated by rotatory motor 2.
- Figure 2 shows the other side of disc surface 1 which is used for printing.
- the ink jet print head 6 has a line of nozzles 7 arranged on the radial axis.
- the ink jet head is moved along this axis by sliding rod 8 which is actuated by linear stepping motor 9.
- the two types of operations, of read/write and of printing are carried in different times, and not concurrently.
- one specific read operation is performed by the laser head during printing.
- the laser head is kept stationary at a predetermined known point along the rad us of the disc and read the track data which give sectorial information.
- the circular fixed rate movement of the disc is executed by a continuous dc motor rotating at a constant speed, or in a speed which is related to its angular position, and which is an inherent part of any CD drive.
- this rotation allows access of the laser head into all sectors of the disc.
- the same movement and the same motor are used to allow access of the print head into any sector of the printable surface of the disc.
- the linear movement is achieved by a high precision stepping motor that execute a movement along the radius of the disc that allows positioning of the laser head at any point along the radius of the disc. The combination of the two movements allows thus access of the laser head to any point on the surface of the disc.
- the precise control of the spatial positioning of the head is achieved by the use of an encoding mechanism that feeds back the linear position, and by the feedback from track data embedded on the disc that supply the sectorial information.
- the degree of mechanical precision required for such laser beam is very high, measured in sub micron units both in the rotatory and in the linear directions.
- an additional and nearly identical linear movement mechanism is used.
- This additional mechanism is placed however in the opposite side of the disc to the laser head.
- the data side of the disc which is used by the laser source is conventionally the bottom side.
- the opposite, printable side is the top of the disc.
- Such arrangement is very advantageous for drop of demand ink jet mechanism.
- the preferred way to eject and place ink droplets on a substrate is from top to down, the ink jet nozzle is place above the substrate and droplets are being injected perpendicularly down toward the substrate. This increases the ejection velocity, a parameter necessary for accurate placement of the droplet.
- Figure 3 shows the ink jet head 6 with row of nozzles 10, and ink containers 11 on its sides. Rows of nozzles could consist each in a single nozzle.
- the head is flash mounted with optical sensor 12. In order to achieve high degree of droplet placement accuracy, all nozzles in a first preferred embodiment of the invention are placed on a single line along the radius of the disc.
- Such arrangement allows an easy calculation of droplet ejection time so that precise positioning is achieved, as the distance between adjacent nozzles is known, the exact positioning of any and all along the radius is also known from the encoding mechanism incorporated in the linear movement mechanism, the sector information is available from the track data read by stationary laser beam during printing, and the time needed for the droplet to reach the surface is known from drop velocity and distance of the nozzle from the substrate. Since the tracks are arranged as a continuous spiral, or concentric rings, additional information is needed for determining the exact sectorial coordinates on the disc.
- Such information can be provided by first printing an encoding at least one coordinate point on either the outside or the inside circumference of the annular disc, reading such coordinate point by an optical sensor mounted on the inner or outer edge of the print head at a point radially centered as the nozzles are. Once the coordinate point or points are detected, track data is counted and calculated.
- Figure 4 shows several of the possibilities to place such markings- a single marker, a 4 mark compass and a ring of markers.
- the coordinate point(s) have to be printed on a new disc prior to any other print operation.
- the optical sensor that detect the coordinate point(s) must be placed stationary on radial axis along the circumference line where such points are printed. All such data are used to calculate precisely when to eject a drop so that it reaches the rotating substrate at a predetermined point.
- the sectorial information is derived from data bits that are arranged along the spiral tracks of the discs (such bits are either physical pits and through or optically modified points) and are 1 micron of width, and 3 microns of length along the track. Based on the 10 microns the margin error of droplet placement timing with respect to the rotatory movement is three times the accuracy of the sectorial track data. Thus it is possible to read the track data with an accuracy in excess of that needed to minimize placement errors.
- the preferred embodiment is a case in which the rotation of the disc during droplet ejection is zero or above it.
- the zero case is a situation defined as stop and go mode, where the disc is rotated until precise alignment of the sector is achieved, then stops, and ejection occurs.
- this extreme case is not anticipated, and speed which allow efficient rotation for fast printing speeds can be reached.
- the present invention aims primarily, but not exclusively to incorporate the ink jet print head into a standard CD drive mechanism. Such drive offer a very narrow space above the disc. It is necessary therefore to keep the ink jet mechanism in a very low profile.
- the ink jet mechanism is such as produced by Scitex Corporation of Israel.
- the mechanism of this ink jet is shaped as thin wafer, 1.8 mm thick, with nozzles occupying the bottom surface of the wafer, and piezo elements the top surface.
- the width and length of the wafer are determined by the number of nozzles employed. Since the nozzle-to-nozzle distance in this mechanism is 2.3 mm, a single row of nozzles (wherein each row may consist of a single nozzle) require a wafer width of 3 mm. An 8 nozzle row will require a wafer length of 20 mm.
- Such dimensions are small enough to allow placing such ink jet in a space very close to the one available in standard CD drive and also allow travel of the mechanism in and out along the radius of the disc.
- the present invention is not limited to Scitex' ink jet heads, as other ink jet mechanisms can be adopted to be structured in a similar manner.
- a small ink container having the same thickness and length of the bar is attached.
- the ink jet mechanism and the ink container are sealed together to form a complete ink jet cartridge in the shape of a 3 mm thick wafer, which can have length and width useful and practical to meet space constraints as well as ink capacity requirements.
- the advantage of such arrangement is not only the very small space, but also that the ink jet head and its ink supply are constituting a complete, wafer thin, cartridge.
- the print capacity in the case of eight nozzles Scitex' device, and with 0.15 ml ink capacity (enough to print an area of 6x6 cm in 50 discs at 10% black density such as conventional text) the total surface of the wafer will measure 20 x 40 mm, with ink containers depth of 2mm.
- the cartridge described above is being held in holder designed so that it holds the cartridge along a sliding rod, in a way similar to the way the laser element is held along a sliding rod in CD drives.
- an opening engineered in the top front of the CD drive case it is possible to insert in or pull out a cartridge.
- the cartridge in use is emptied of ink, it can be pulled out, and a new one is inserted in its place.
- Figure 5 depict this arrangement.
- the invention is not limited to the wafer thin cartridges. In case that more space is made available in the CD drive, other configurations, including a configuration with a separate ink supply connected to the head by flexible tube can be considered.
- Printing on a circularly shaped substrate poses problems not encountered in a rectangular shaped substrate used in almost all office and PC printers. Simply there are no orienting coordinates. In case of one time printing this is not a problem as the reader will orient the disc so he can read the printed text.
- aiTM is to allow for more than one time printing, a solution and means for that are also offered in the present invention. It should be apparent to those familiar with data storing operations that printing of the content can be repetitive and occurring in the different times. For example, whenever a file is written into the disc, the user will like to print on he disc the name of the file.
- the present invention includes therefore a software mean, by which whenever a new disc is used it will be first be printed with orientation coordinates.
- these coordinates will be printed along the outer or the inner circumference of the .annular boundaries of the disc surface (the disc have a central hole). Such coordinates will then be scanned by the photo-sensitive element of the optical sensor mount at the edge of the holder of the ink jet cartridge.
- Miniature photo-sensitive elements which contain an emitter and a sensor are commercially available from many manufacturers such as HP, Motorola and others, and some are sufficiently small to be used.
- the disc Prior to any subsequent printing, the disc will be rotated, the cartridge holder will be gradually moved along the radius, and the orientation markings, as well as all other already printed information will be scanned. The scanned information will then be displayed on the computer screen. The user will then type in the new information, select a font and size and the print location he deems suitable. A software program will display the desired appearance. Once confirmed, it will be then processed by software and sent to the print mechanism under location control derived from the linear movement encoder and the track decoder information.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99956304A EP1133397A4 (en) | 1998-11-29 | 1999-11-22 | Printing mechanism for digital discs |
AU12935/00A AU1293500A (en) | 1998-11-29 | 1999-11-22 | Printing mechanism for digital discs |
JP2000585067A JP2002531290A (en) | 1998-11-29 | 1999-11-22 | Digital disk print processing mechanism |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL12731798A IL127317A0 (en) | 1998-11-29 | 1998-11-29 | Printing mechanism for digital discs |
IL127317 | 1998-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000032399A1 true WO2000032399A1 (en) | 2000-06-08 |
Family
ID=11072196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL1999/000630 WO2000032399A1 (en) | 1998-11-29 | 1999-11-22 | Printing mechanism for digital discs |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1133397A4 (en) |
JP (1) | JP2002531290A (en) |
AU (1) | AU1293500A (en) |
IL (1) | IL127317A0 (en) |
WO (1) | WO2000032399A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10016412A1 (en) * | 2000-04-01 | 2001-10-04 | Edison Fatehpour | Matrix printer printing or scanning method with movable printing medium, involves turning the printing medium around at least one axis of rotation |
JP2002251862A (en) * | 2001-02-26 | 2002-09-06 | Ricoh Co Ltd | Storage medium and information recording and reproducing device using the same |
WO2002098669A1 (en) * | 2001-06-01 | 2002-12-12 | Elesys, Inc. | Low-profile ink head cartridge with integrated movement mechanism and service station |
US6786563B1 (en) | 2001-04-18 | 2004-09-07 | Elesys, Inc. | Interleaving apparatus and methods for radial printing |
EP1477317A1 (en) * | 2003-05-09 | 2004-11-17 | Samsung Electronics Co., Ltd. | Printing Apparatus |
EP1491345A2 (en) * | 2003-06-27 | 2004-12-29 | Hewlett-Packard Development Company, L.P. | System and method of printing within circular area |
US6910750B2 (en) | 2000-06-02 | 2005-06-28 | Elesys, Inc. | Low-profile ink head cartridge with integrated movement mechanism and service station |
WO2005104807A2 (en) * | 2004-04-28 | 2005-11-10 | Elesys, Inc. | Radial sled printing apparatus and methods |
US6986559B1 (en) | 2001-04-20 | 2006-01-17 | Elesys, Inc. | Position information apparatus and methods for radial printing |
US7284804B2 (en) | 2001-04-18 | 2007-10-23 | Elesys, Inc. | Interleaving apparatus and methods for radial printing |
EP1848594A2 (en) * | 2005-02-18 | 2007-10-31 | Elesys, Inc. | Off-radial-axis circular printing device and methods |
US7484820B2 (en) | 2005-03-30 | 2009-02-03 | Brother Kogyo Kabushiki Kaisha | Recording apparatus for rotating recording medium |
US7561309B2 (en) | 2005-03-30 | 2009-07-14 | Brother Kogyo Kabushiki Kaisha | Recording apparatus and recording method |
US7815271B2 (en) | 2006-03-24 | 2010-10-19 | Sony Corporation | Recording medium driving device and recording medium driving method |
US7850276B2 (en) | 1998-04-17 | 2010-12-14 | Elesys, Inc. | Radial sled printing apparatus and methods |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4367500B2 (en) | 2006-09-15 | 2009-11-18 | ソニー株式会社 | Information recording device |
JP2011018717A (en) * | 2009-07-08 | 2011-01-27 | Hitachi High-Technologies Corp | Apparatus and method for resist application |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4312010A (en) * | 1979-07-07 | 1982-01-19 | U.S. Philips Corporation | Ink jet printer |
US5317337A (en) * | 1987-07-01 | 1994-05-31 | U.S. Philips Corporation | Printing method for disc-shaped information carriers |
US5448269A (en) * | 1993-04-30 | 1995-09-05 | Hewlett-Packard Company | Multiple inkjet cartridge alignment for bidirectional printing by scanning a reference pattern |
US5598391A (en) * | 1993-10-27 | 1997-01-28 | Sony Corporation | Apparatus for recording data and statically storing and recording supervisory information representing contents of the data on a recording medium |
US5737441A (en) * | 1991-12-12 | 1998-04-07 | Nikon Corporation | Aligning method and apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0631906A (en) * | 1992-07-13 | 1994-02-08 | Taiyo Yuden Co Ltd | Printing apparatus of label of disk and data recording apparatus of optical disk |
JPH10505455A (en) * | 1995-06-29 | 1998-05-26 | イーストマン コダック カンパニー | Method and apparatus for preparing a labeled digital disc |
JP3341572B2 (en) * | 1996-03-27 | 2002-11-05 | セイコーエプソン株式会社 | Optical disk drive |
-
1998
- 1998-11-29 IL IL12731798A patent/IL127317A0/en unknown
-
1999
- 1999-11-22 AU AU12935/00A patent/AU1293500A/en not_active Abandoned
- 1999-11-22 JP JP2000585067A patent/JP2002531290A/en not_active Withdrawn
- 1999-11-22 WO PCT/IL1999/000630 patent/WO2000032399A1/en not_active Application Discontinuation
- 1999-11-22 EP EP99956304A patent/EP1133397A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4312010A (en) * | 1979-07-07 | 1982-01-19 | U.S. Philips Corporation | Ink jet printer |
US5317337A (en) * | 1987-07-01 | 1994-05-31 | U.S. Philips Corporation | Printing method for disc-shaped information carriers |
US5737441A (en) * | 1991-12-12 | 1998-04-07 | Nikon Corporation | Aligning method and apparatus |
US5448269A (en) * | 1993-04-30 | 1995-09-05 | Hewlett-Packard Company | Multiple inkjet cartridge alignment for bidirectional printing by scanning a reference pattern |
US5598391A (en) * | 1993-10-27 | 1997-01-28 | Sony Corporation | Apparatus for recording data and statically storing and recording supervisory information representing contents of the data on a recording medium |
Non-Patent Citations (1)
Title |
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See also references of EP1133397A4 * |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7850276B2 (en) | 1998-04-17 | 2010-12-14 | Elesys, Inc. | Radial sled printing apparatus and methods |
DE10016412C2 (en) * | 2000-04-01 | 2003-08-07 | Edison Fatehpour | Matrix printer or scanner for printing or scanning a print medium |
DE10016412A1 (en) * | 2000-04-01 | 2001-10-04 | Edison Fatehpour | Matrix printer printing or scanning method with movable printing medium, involves turning the printing medium around at least one axis of rotation |
US6910750B2 (en) | 2000-06-02 | 2005-06-28 | Elesys, Inc. | Low-profile ink head cartridge with integrated movement mechanism and service station |
JP2002251862A (en) * | 2001-02-26 | 2002-09-06 | Ricoh Co Ltd | Storage medium and information recording and reproducing device using the same |
US6786563B1 (en) | 2001-04-18 | 2004-09-07 | Elesys, Inc. | Interleaving apparatus and methods for radial printing |
US7284804B2 (en) | 2001-04-18 | 2007-10-23 | Elesys, Inc. | Interleaving apparatus and methods for radial printing |
US6986559B1 (en) | 2001-04-20 | 2006-01-17 | Elesys, Inc. | Position information apparatus and methods for radial printing |
WO2002098669A1 (en) * | 2001-06-01 | 2002-12-12 | Elesys, Inc. | Low-profile ink head cartridge with integrated movement mechanism and service station |
CN1292912C (en) * | 2003-05-09 | 2007-01-03 | 三星电子株式会社 | Image forming apparatus capable of printing disc and disk-printing unit for the image forming apparatus |
EP1477317A1 (en) * | 2003-05-09 | 2004-11-17 | Samsung Electronics Co., Ltd. | Printing Apparatus |
US7237857B2 (en) | 2003-05-09 | 2007-07-03 | Samsung Electronics Co., Ltd. | Image forming apparatus capable of printing disc and disc-printing unit for the image forming apparatus |
EP1491345A3 (en) * | 2003-06-27 | 2006-05-31 | Hewlett-Packard Development Company, L.P. | System and method of printing within circular area |
EP1491345A2 (en) * | 2003-06-27 | 2004-12-29 | Hewlett-Packard Development Company, L.P. | System and method of printing within circular area |
WO2005104807A3 (en) * | 2004-04-28 | 2006-12-21 | Elesys Inc | Radial sled printing apparatus and methods |
WO2005104807A2 (en) * | 2004-04-28 | 2005-11-10 | Elesys, Inc. | Radial sled printing apparatus and methods |
EP1848594A2 (en) * | 2005-02-18 | 2007-10-31 | Elesys, Inc. | Off-radial-axis circular printing device and methods |
EP1848594A4 (en) * | 2005-02-18 | 2009-05-06 | Elesys Inc | Off-radial-axis circular printing device and methods |
US7484820B2 (en) | 2005-03-30 | 2009-02-03 | Brother Kogyo Kabushiki Kaisha | Recording apparatus for rotating recording medium |
US7561309B2 (en) | 2005-03-30 | 2009-07-14 | Brother Kogyo Kabushiki Kaisha | Recording apparatus and recording method |
US7815271B2 (en) | 2006-03-24 | 2010-10-19 | Sony Corporation | Recording medium driving device and recording medium driving method |
Also Published As
Publication number | Publication date |
---|---|
AU1293500A (en) | 2000-06-19 |
IL127317A0 (en) | 1999-09-22 |
JP2002531290A (en) | 2002-09-24 |
EP1133397A4 (en) | 2002-03-20 |
EP1133397A1 (en) | 2001-09-19 |
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