WO2003016063A1 - Printhead cartridge with asymmetrical contacts - Google Patents
Printhead cartridge with asymmetrical contacts Download PDFInfo
- Publication number
- WO2003016063A1 WO2003016063A1 PCT/CN2001/001231 CN0101231W WO03016063A1 WO 2003016063 A1 WO2003016063 A1 WO 2003016063A1 CN 0101231 W CN0101231 W CN 0101231W WO 03016063 A1 WO03016063 A1 WO 03016063A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- centerline
- contacts
- printhead
- printhead cartridge
- front surface
- 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
- 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17526—Electrical contacts to the cartridge
- B41J2/1753—Details of contacts on the cartridge, e.g. protection of contacts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
Definitions
- the present invention relates to a printhead cartridge for a printer.
- the present invention discloses a printhead cartridge with asymmetrical contacts that enables a size reduction in a corresponding flexible circuit board
- FCB flame
- Fig.l is a perspective view of a prior art printhead cartridge 10.
- the prior art printhead cartridge 10 comprises an inkwell 12 and a tape automated bonding (TAB) structure 14.
- the TAB 14 is mounted on the inkwell 12, wrapping around from a front surface 15 to a bottom surface 19.
- the TAB 14 comprises a plurality of contacts 16, each with a corresponding trace 17 that electrically connects to a printhead 18.
- the printhead 18 is mounted on the TAB 14, and is disposed on the bottom surface 19 of the inkwell 12.
- the printhead cartridge 10 exhibits great symmetry along a cross-section A-A.
- each half of the printhead cartridge 10 would have approximately the same number of contacts 16 (depending upon the parity of the number of contacts 16), and half of the printhead 18.
- the inkwell 12 is used to hold ink (not shown) , and to provide this ink to the printhead 18.
- the printhead 18 performs a printing operation by jetting ink according to signals received from the contacts 16.
- Fig.2 is a perspective view of a prior art printer 20.
- the printhead cartridge 10 is adapted for use in the printer 20.
- the printer 20 has a carriage 22 that holds two of the printhead cartridges 10, carrying the printhead cartridges 10 back and forth along a print track 24.
- the two printhead cartridges 10 are held as closely together as possible within the carriage 22. With each pass along the track 24, the printhead cartridges 10 form a print swath on a sheet of paper 21. Generally speaking, one of the printhead cartridges 10 performs a black-and-white printing operation, whereas the other printhead cartridge 10 performs a color printing operation using cyan, magenta and yellow inks. Together, the two printhead cartridges 10 are able to perform a full-color printing process upon the sheet of paper 21.
- Fig.3 is a schematic diagram of a flexible circuit board (FCB) 30 within the printer 20.
- the FCB 30 is disposed within the carriage 22 and is used to establish electrical communications with the printhead cartridges 10.
- the FCB 30 has a plurality of dimples 36, each of which establishes an electrical connection with one of the corresponding contacts 16 of the printhead cartridges 10. In this manner, the printer 20 is able to control the printhead 18 of each printhead cartridge 10.
- the cost associated with the FCB 30 is related to the overall surface area of the FCB 30. By reducing the size of the FCB 30, it shouldbe possible to reduce the total cost of the printer 10.
- the preferred embodiment of the present invention discloses a printhead cartridge that mounts within a carriage of a printer.
- the carriage moves along a first direction within the printer.
- the printhead cartridge includes an inkwell for storing ink, which has a front surface and a bottom surface, a printheadmounted on the bottom surface, and a plurality of contacts for receiving signals from the printer and to provide the signals to the printhead.
- a centerline of the front surface running perpendicular to the first direction, evenly defines first and second sides of the front surface.
- the contacts are disposed on the front surface, and a distribution of the contacts on the first side exceeds a corresponding distribution of the contacts on the second side.
- Fig.l is a perspective view of a prior art printhead cartridge.
- Fig.2 is a perspective view of a prior art printer.
- Fig.3 is a schematic diagram of a flexible circuit board (FCB) within the printer of Fig.2.
- FCB flexible circuit board
- Fig.4 is a perspective view of a preferred embodiment of a printhead cartridge according to the present invention.
- Fig.5 is a perspective view of a printer according to the present invention.
- Fig.6 is a perspective view of printhead cartridges according to the present invention, which are to be used in the printer of Fig.5.
- Fig. 7 is a schematic diagram of a flexible circuit board (FCB) disposed within a carriage of the printer of Fig.5.
- Fig. 8 is a perspective view of a second embodiment printhead cartridge according to the. present invention.
- FCB flexible circuit board
- Fig.9 is a perspective view of a third embodiment printhead cartridge according to the present invention.
- Fig.4 is a perspective view of a preferred embodiment printhead cartridge 40a according to the present invention.
- the printhead cartridge 40a comprises an inkwell 42, and a tape automated bonding (TAB) structure 44 mounted on the inkwell 42.
- the inkwell 42 has a front surface 45 and a bottom surface 49.
- the TAB 44 is mounted on the front surface 45, and wraps around to the bottom surface 49.
- the TAB 44 includes a plurality of contacts 46a, each in electrical connection with a printhead 48 by way of a trace 47. All of the contacts 46a are on the front surface 45 of the inkwell 42, whereas the printhead 48 is disposed on the bottom surface 49.
- the contacts 46a are arranged in a plurality of columns 46c.
- the inkwell 42 provides ink (not shown) to the printhead 48.
- the printhead 48 jets the ink according to signals received from the contacts 46a.
- Fig.5 is a perspective view of a printer 50 according to the present invention.
- the printhead cartridge 40a is adapted for use within the printer 50.
- the printer 50 includes a carriage 52 that holds the printhead cartridge 40a, and carries the printhead cartridge 40a back and forth along a direction X of a print track 54. With each pass along the print track 54, the printhead cartridge 40a jets ink onto a document 51 to perform a printing operation.
- the printhead cartridge 40a is mounted in an upright manner within- the carriage 52, the bottom surface 49 facing downwards, so that gravity may help to feed ink to the printhead 48.
- the printhead cartridge 40a has a centerline along a direction Y-Y, which evenly defines a first side 45R and a second side 45L of the front surface 45.
- This centerline Y-Y a vertical bisector, is perpendicular to the direction X of the print track 54.
- the first side 45R has about half of the total surface area of the front surface 45, with the second side 45L having the remainder.
- a majority of the contacts 46a are disposed on the first side 45R, so that the distribution of contacts 46a on the first side 45R exceeds that of the second side 45L. That is, the number of contact columns 46c on the first side 45R is different from the number of contact columns 46c on the second side 45L.
- the distribution of contacts 46a is thus asymmetric with respect to the centerline Y-Y. This asymmetric distribution is in excess of any simple disparities brought about by parity (i.e., an odd number of contacts 46a) .
- the first side 45R should have at least 5 percent more contacts 4 ⁇ a than the second side 45L.
- the bottom surface 49 also has a centerline B-B, which substantially evenly divides the bottom surface 49. Note that the centerline B-B aligns with the centerline Y-Y, so that if one were to evenly split the printhead cartridge 40a in half, one would have to cut along both the centerline Y-Y and the centerline B-B.
- the printhead 48 lies evenly disposed along the centerline B-B.
- the printhead cartridge 40a is preferably designed to work in conjunction with a complementary printhead cartridge 40b.
- the printhead cartridge 40a may hold only colored ink, whereas the printhead cartridge 40b will hold black ink.
- Fig.6 is a perspective view of the printhead cartridges 40a and 40b according to the present invention, which are to be used in the printer 50.
- the printhead cartridge 40b also has an asymmetrical distribution of contacts 46b in accordance with the present invention, with a higher distribution of contacts 46b being towards the printhead cartridge 40a.
- the printhead cartridge 40b may be thought of as a reflection along a line R-R of the printhead cartridge 40a, as regards the distribution of the contacts 46b with respect to that of the contacts 46a.
- the printhead cartridge 40b may have a fewer or greater number of contacts 46b than contacts 46a .
- the key point is, however, that a greater number of contacts 46a and 46b are moved closer towards the imaginary line R-R between the printhead cartridges 40a and 40b.
- FCB flexible circuit board
- Fig.7 is a schematic diagram of a flexible circuit board (FCB) 70 disposed within the carriage 52 of the printer 50.
- the FCB 70 is used as a contact surface to establish electrical connections with each contact 46a and 46b of the printhead cartridges 40a and 40b, respectively.
- the FCB 70 has a plurality of dimples 76a, each of which establishes an electrical connection with one corresponding contact 46a, and a plurality of dimples 76b, each of which establishes an electrical connection with one corresponding contact 46b. In this manner, by way of the FCB 70, the printer 50 is capable of sending signals to the printhead cartridges 40a and 40b.
- the complementary asymmetric distributions of the contacts 46a and 46b on their respective printhead cartridges 40a and 40b leads to a greater concentration of corresponding dimples 76a and 76b towards a center 75c of the FCB 70. This, in turn, leads to a corresponding decrease in the number of dimples 76a and 76b on the sides 75L and 75R of the FCB 70.
- a consequence of this is that traces 77 from the dimples 76a and 76b are more concentrated in the center 75c of the FCB 70, and fewer traces 77 need be made that run along the sides 75L and 75R of the FCB 70.
- the traces 77 may also be made to run between two columns of dimples, such as between columns 79a and 79b.
- the sides 75R and 75L may thus be pulled in towards the center 75c, which leads to a size reduction of the FCB 70.
- the traces 77a, 77b, 77c and 77d would clearly move closer towards the center 75c of the FCB 70.
- the region thus currently occupied by the traces 77a-77d could thus be trimmed away from the FCB 70, leading to a further reduction in size of the FCB 70.
- Fig.8 is a second embodiment 80 of a printhead cartridge according to the present invention.
- the printhead cartridge 80 includes an inkwell 82 and a TAB 84.
- the inkwell 82 has a front surface 85 and a bottom surface 89.
- the front surface 85 is evenly defined by a centerline C-C into a first side 85R and a second side 85L.
- the bottom surface 89 is similarly evenly divided by a centerline E-E, which aligns with the centerline C-C.
- the TAB 84 is disposed on both the front surface 85 and bottom surface 89 of the inkwell 82, having a plurality of contacts 86 disposed on the front surface 85, and a printhead 88 on the bottom surface 89.
- the portion of the TAB 84 mounted on the front surface 85 is evenly divided by a centerline D-D, whereas the portion of the TAB 84 mounted on the bottom surface 89 is evenly divided by a centerline F-F.
- the centerline D-D aligns with the centerline F-F to evenly divide the entire TAB 84.
- the contacts 86 are symmetrically disposed around the TAB 84 centerline D-D so that, excepting parity considerations, an equal number of contacts 86 are on one side of the centerline D-D as on the other side of the centerline D-D.
- the centerline D-D of the TAB 84 is offset from the centerline C-C of the front surface 85.
- the printhead 88 is mounted in alignment with the centerline E-E of the bottom surface 89, rather than the centerline F-F of the TAB 84. In this manner, the printhead 88 remains centrally aligned on the bottom surface 89, which is preferred as only one type of inkwell 82 must thus be fashioned.
- FIG.9 is a third embodiment 90 of a present invention printhead cartridge.
- centerlines H-H and J-J of the TAB 94 are offset from the corresponding centerlines G-G and I-I of the inkwell 92.
- the printhead 98 is aligned with the TAB 94 centerline J-J of the bottom surface 99. Consequently, both the contacts 96 and the printhead 98 are symmetric with respect to the TAB 94, but are asymmetric with respect to the inkwell 92.
- This design is considered somewhat inferior, though, as it requires two different types of inkwell 92: one that supports a greater distribution of contacts 96 on the side 95R, and another that supports a greater distribution of contacts 96 on the side 95L.
- the present invention provides an asymmetric distribution of contacts on the front surface of an inkwell.
- a contact surface within the printer that is used to establish communications with the paired printhead cartridges i.e., an FCB
- FCB paired printhead cartridges
- a higher density of corresponding dimples are brought towards the center of this connecting surface.
- the outer edges of the surface may thus be trimmed away, leading to a size reduction of the surface, and consequently, reduced costs associated with the printer.
Landscapes
- Ink Jet (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN01823456.9A CN1224516C (en) | 2001-08-20 | 2001-08-20 | Ink box with asymmetrical-arragned contact point |
DE20180409U DE20180409U1 (en) | 2001-08-20 | 2001-08-20 | Printhead cartridge with asymmetrical contacts |
DE10197260T DE10197260B4 (en) | 2001-08-20 | 2001-08-20 | Printhead cartridge with asymmetric contacts |
PCT/CN2001/001231 WO2003016063A1 (en) | 2001-08-20 | 2001-08-20 | Printhead cartridge with asymmetrical contacts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2001/001231 WO2003016063A1 (en) | 2001-08-20 | 2001-08-20 | Printhead cartridge with asymmetrical contacts |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003016063A1 true WO2003016063A1 (en) | 2003-02-27 |
Family
ID=4574845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2001/001231 WO2003016063A1 (en) | 2001-08-20 | 2001-08-20 | Printhead cartridge with asymmetrical contacts |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN1224516C (en) |
DE (2) | DE10197260B4 (en) |
WO (1) | WO2003016063A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9162469B2 (en) | 2012-04-30 | 2015-10-20 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
US9630417B2 (en) | 2012-04-30 | 2017-04-25 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
CN112829463A (en) * | 2020-12-31 | 2021-05-25 | 新会江裕信息产业有限公司 | Printer nozzle and printer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105818542B (en) * | 2012-04-30 | 2018-10-30 | 惠普发展公司,有限责任合伙企业 | Flexible base board with integrated circuit |
CN111845095B (en) * | 2019-07-05 | 2021-09-07 | 珠海艾派克微电子有限公司 | Imaging box and chip applied to imaging box |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0610965A1 (en) * | 1989-08-05 | 1994-08-17 | Canon Kabushiki Kaisha | Ink jet recording apparatus and ink cartridge for the apparatus |
US5422667A (en) * | 1992-12-02 | 1995-06-06 | General Ribbon Corporation | Ink jet printing cartridge with circuit element protection system |
WO1996005061A1 (en) * | 1994-08-09 | 1996-02-22 | Encad, Inc. | Printer ink cartridge |
CN1189415A (en) * | 1997-01-30 | 1998-08-05 | 惠普公司 | Electrical interconnect for replaceable ink containers |
US5793396A (en) * | 1994-12-12 | 1998-08-11 | Brother Kogyo Kabushiki Kaisha | Ink-supply connecting member and ink ejection system |
US6027209A (en) * | 1997-09-03 | 2000-02-22 | Hewlett-Packard Company | Ordered storage and/or removal of inkjet cartridges and capping means from a storage container |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6161915A (en) * | 1998-06-19 | 2000-12-19 | Lexmark International, Inc | Identification of thermal inkjet printer cartridges |
-
2001
- 2001-08-20 CN CN01823456.9A patent/CN1224516C/en not_active Expired - Fee Related
- 2001-08-20 WO PCT/CN2001/001231 patent/WO2003016063A1/en active Application Filing
- 2001-08-20 DE DE10197260T patent/DE10197260B4/en not_active Expired - Fee Related
- 2001-08-20 DE DE20180409U patent/DE20180409U1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0610965A1 (en) * | 1989-08-05 | 1994-08-17 | Canon Kabushiki Kaisha | Ink jet recording apparatus and ink cartridge for the apparatus |
US5422667A (en) * | 1992-12-02 | 1995-06-06 | General Ribbon Corporation | Ink jet printing cartridge with circuit element protection system |
WO1996005061A1 (en) * | 1994-08-09 | 1996-02-22 | Encad, Inc. | Printer ink cartridge |
US5793396A (en) * | 1994-12-12 | 1998-08-11 | Brother Kogyo Kabushiki Kaisha | Ink-supply connecting member and ink ejection system |
CN1189415A (en) * | 1997-01-30 | 1998-08-05 | 惠普公司 | Electrical interconnect for replaceable ink containers |
US6027209A (en) * | 1997-09-03 | 2000-02-22 | Hewlett-Packard Company | Ordered storage and/or removal of inkjet cartridges and capping means from a storage container |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9162469B2 (en) | 2012-04-30 | 2015-10-20 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
US9630417B2 (en) | 2012-04-30 | 2017-04-25 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
US10086620B2 (en) | 2012-04-30 | 2018-10-02 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
US10214019B2 (en) | 2012-04-30 | 2019-02-26 | Hewlett-Packard Development Company, L.P. | Flexible substrate with integrated circuit |
CN112829463A (en) * | 2020-12-31 | 2021-05-25 | 新会江裕信息产业有限公司 | Printer nozzle and printer |
Also Published As
Publication number | Publication date |
---|---|
DE10197260B4 (en) | 2007-04-12 |
CN1224516C (en) | 2005-10-26 |
DE20180409U1 (en) | 2004-07-22 |
DE10197260T5 (en) | 2004-08-19 |
CN1529657A (en) | 2004-09-15 |
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