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US Patent 5992994 - Large inkjet print swath media support system

US Patent Issued on November 30, 1999
Estimated Patent Expiration Date: Icon_subject January 31, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

To maintain a uniform spacing between the print media, such as paper, and an inkjet printhead having a large print swath, for instance about 25 millimeters (one inch) wide, a new media support system is provided for inkjet printing mechanisms, such as printers or plotters. The support system employs an endless belt driven from the belt interior surface by a roller drive system that uniformly supports the print media under the reciprocating printhead. The belt may be lined with anti-cockle ribs to support the media when saturated. The belt may also be foraminous, with a vacuum applied thereunder to pull the media onto the belt. A method is also provided for supporting and transporting a large sheet of print media through a printzone of an inkjet printing mechanism, such as an inkjet plotter, that uses such a large swath inkjet printhead.

Other References

  • Patent Abstracts of Japan, vol. 017, No. 469, Aug. 26, 1993 & JP 05 112001 A (Canon, Inc.) May 7, 1993
  • Patent Abstracts of Japan, vol. 096, No. 003, Mar. 29, 1996 & JP 07 304167 (Hitachi Koki Co. Ltd.) Nov. 21, 199

Inventors

Application

No. 595009 filed on 01/31/1996

US Classes:

347/104Physical handling

Field of Search

347/104, Physical handling347/8, Of spacing between fluid ejector and receiving medium347/101, Medium and processing means400/634, Including friction-feed means (e.g., band)400/635, By endless-feed band226/170, On endless belt or chain226/171, With cooperating surface226/172, Comprising endless belt or chain226/173, With gripper(s) mounted thereon226/43, To stop and/or start movement of material226/95, By pneumatic pressure226/74, Pins on flexible belt or chain226/75, With means to effect supplementary pin movement226/174, With control or adjustment means226/175, To vary diameter of roll226/176, To vary bite of contacting pinch members226/177, Infinitesimally variable271/198, By endless conveyor271/199, Operation controlled by delivered sheet271/200, With delivery end movably relative to pack receiver271/201, Moving away from increasing delivered pack271/194, By pneumatic conveyor271/196, Unidirectionally-moving suction member or surface271/276, Including pneumatic means399/406, Curl correction399/329, Continuous web198/818, Having upwardly facing trough configuration in transverse direction on conveying reach198/822, Formed or including transverse plates tandemly disposed lengthwise of carrier belt198/844.1, Carrier belt structure198/850Formed of or including pivotally interconnected rigid links

Examiners

Primary: Barlow, John
Assistant: Stephens, Juanita

Attorney, Agent or Firm

US Patent References

4207579, Reciprocating paper handling apparatus for use in an ink jet copier
Issued on: 06/10/1980
Inventor: Gamblin ,   et al.
4447817, Constant velocity copy sheet transport with ink jet printing
Issued on: 05/08/1984
Inventor: Naramore
4660752, Vacuum feeder for continuous web
Issued on: 04/28/1987
Inventor: Rikard ,   et al.
4682904, Paper feed mechanism for printer
Issued on: 07/28/1987
Inventor: Yoshimura ,   et al.
4821049, Substrate transport apparatus, especially for mail handling
Issued on: 04/11/1989
Inventor: Eckl
5051761, Ink jet printer having a paper handling and maintenance station assembly
Issued on: 09/24/1991
Inventor: Fisher, et al.
5276970, Codestrip in a large-format image-related device
Issued on: 01/11/1994
Inventor: Wilcox, et al.
5342133, Paper moving system for a printer/plotter
Issued on: 08/30/1994
Inventor: Canfield
5345863, Continuous web printing apparatus
Issued on: 09/13/1994
Inventor: Kurata, et al.
5393151, Print medium handling system including cockle ribs to control pen-to-print medium spacing during printing
Issued on: 02/28/1995
Inventor: Martin, et al.
5419644, Print medium handling system including cockle springs to control pen-to-print medium spacing during printing
Issued on: 05/30/1995
Inventor: Martin, et al.
5468076, Print gap adjusting device
Issued on: 11/21/1995
Inventor: Hirano, et al.
5548388, 5593240Carriage support system for computer driven printer
Issued on: 01/14/1997
Inventor: Broder, et al.

Foreign Patent References

  • 0640479A EP 03/09/1995
  • 60-48385 JP 03/09/1985

International Class

B41J 002/01

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