Patents by Inventor Ah Chong Tee
Ah Chong Tee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10625968Abstract: A media diversion apparatus for a printing system is described. In an example implementation, the apparatus comprises a media diverter to route media printed by a print assembly of a printing system. The media diverter, in a first position, is to route cut-sheet media from the print assembly to a first output region. The media diverter, in a second position, is to route roll media from the print assembly to a second output region.Type: GrantFiled: June 29, 2016Date of Patent: April 21, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xiaoxi Huang, Bo Pu, Ah Chong Tee
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Publication number: 20190135568Abstract: A media diversion apparatus for a printing system is described. In an example implementation, the apparatus comprises a media diverter to route media printed by a print assembly of a printing system. The media diverter, in a first position, is to route cut-sheet media from the print assembly to a first output region. The media diverter, in a second position, is to route roll media from the print assembly to a second output region.Type: ApplicationFiled: June 29, 2016Publication date: May 9, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Xiaoxi Huang, Bo Pu, Ah Chong Tee
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Patent number: 9656484Abstract: A printer includes a print zone, and a media output guide assembly downstream of the print zone to curve media between media side edges. The media output guide assembly includes: an inner guide; and a pair of outer guides, the media to pass between the inner guide and the outer guides with the inner guide above the media and the outer guides below the media. The media passing between the guides has, in a direction perpendicular to a media output direction, outer edges that droop around and below a top of the outer guides, elevated points at the tops of the outer guides and a central low point under the inner guide and between the outer edges.Type: GrantFiled: July 29, 2013Date of Patent: May 23, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Keng Aik Alan Boo, Kok Chai Chong, Ah Chong Tee
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Publication number: 20160082750Abstract: Printer parts and methods to curve media after printing are described.Type: ApplicationFiled: July 29, 2013Publication date: March 24, 2016Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Keng Aik Alan BOO, KOK CHAI CHONG, AH CHONG TEE
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Publication number: 20070273088Abstract: A media output system is provided with the capability of sorting and separating different print jobs at the output area in an orderly manner. The media output system includes an ejecting mechanism for ejecting a wet printed medium in an output direction toward a collection tray, and a plurality of spaced-apart output ramps arranged adjacent to the ejecting mechanism and above the output tray so that the medium is held for a predetermined holding distance before the medium falls onto the collection tray. The output ramps are operable to extend to a different position in the output direction for each print job until a predetermined number of print jobs have been performed.Type: ApplicationFiled: May 24, 2006Publication date: November 29, 2007Inventors: Ling-Hwee Ong, Ah-Chong Tee
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Patent number: 7029093Abstract: A modular service station assembly for use with an inkjet printer having a housing with front and rear ends having a print zone and one or more carriage assemblies adapted to accommodate at least one print cartridge having a print head. The service station assembly has at least one ink spittoon. The service station also includes a wiping station having at least one wiper for cleaning the print head. The at least one ink spittoon and the wiping station are separately disposed to one side of the print zone. The service station further includes a capping station having at least one cap for sealing the print head disposed within the print zone. These discrete modules are arranged to minimize the width of the printer housing.Type: GrantFiled: December 19, 2003Date of Patent: April 18, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ah Chong Tee, Bee Bee Ang
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Patent number: 6942211Abstract: A mobile, color printer capable of printing on letter-size plain paper and standard-size photo paper has a fold-up paper feeder that acts as a cover during travel. Such also serves as a storage tray for several sheets of paper to allow automatic feeding from a vertical stack. A slotted door hinged to the back of the printer, and under the hinges for the fold-up paper feeder/cover, can be flipped up or down. In the down position, a slot on the right side guides the user to feed in photo paper in the correct location. In the up position, letter-size plain paper has full-width access to the printing mechanism, and a sliding adjustable guide on the left allows letter, A4, and other size papers to be lightly corralled on both sides.Type: GrantFiled: July 11, 2003Date of Patent: September 13, 2005Assignee: Hewlett-Packard Development Company, LPInventors: Cherng Linn Teo, Ah Chong Tee, Mylene Angele Kit-Njoek Tjin Wong Joe, Dennis Chua
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Patent number: 6918648Abstract: A printer comprises an inkjet printhead capping assembly that raises up on an elevator to seal the printheads between uses. Such sealing prevents drying of the ink on the printhead nozzles that would otherwise cause clogging and poor operation. The elevator rides up and down on four ramps located at each corner of a cap carriage platform. A rack and pinion gear pushes pins riding on each ramp laterally to translate into the needed up and down elevator motion.Type: GrantFiled: July 11, 2003Date of Patent: July 19, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ah Chong Tee, Bee Bee Ang, Cherng Linn Teo
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Patent number: 6896353Abstract: An inkjet printhead squeegee is split on one side so that its wiping force on a printhead is highest on the front stroke and much lighter on the backstroke when the surface is dry. Alternatively, the split can be arranged so that the front stroke is light enough to leave the printhead wet, and then the backstroke is much firmer to completely squeegee the printhead dry. The result is high pressure strokes on a dry printhead are avoided.Type: GrantFiled: April 24, 2003Date of Patent: May 24, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ah Chong Tee, Cherng Linn Teo, Cheng Tee Tang
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Publication number: 20040212657Abstract: An inkjet printhead squeegee is split on one side so that its wiping force on a printhead is highest on the front stroke and much lighter on the backstroke when the surface is dry. Alternatively, the split can be arranged so that the front stroke is light enough to leave the printhead wet, and then the backstroke is much firmer to completely squeegee the printhead dry. The result is high pressure strokes on a dry printhead are avoided.Type: ApplicationFiled: April 24, 2003Publication date: October 28, 2004Inventors: Ah Chong Tee, Cherng Linn Teo, Cheng Tee Tang
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Patent number: 6755504Abstract: In a method for independently wiping a first and a second printhead of an inkjet printing device, a first and a second wiping assembly separated from each other are provided in the printing device. When the first wiping assembly wipes the first printhead, the second wiping assembly is separated from the second printhead so that the second wiping assembly does not simultaneously wipe the second printhead. When the second wiping assembly wipes the second printhead, however, the first wiping assembly is separated from the first printhead so that the first wiping assembly does not simultaneously wipe the first printhead.Type: GrantFiled: July 22, 2002Date of Patent: June 29, 2004Assignee: Hewlett-Packard Development Company. LP.Inventors: Ah Chong Tee, Bee Bee Ang
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Patent number: 6679579Abstract: A method for wiping a printhead of an inkjet printing mechanism is provided. During a wiping process, firstly, a first amount of wiping force is exerted on the printhead for wiping the printhead in a first direction. Subsequently, a smaller amount of wiping force is exerted on the printhead for wiping the printhead in a second direction opposite to the first direction. The potential damages on the printhead by a dry wiping can thus be decreased by controlling the wiping force on the printhead.Type: GrantFiled: September 5, 2002Date of Patent: January 20, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ah Chong Tee, Cheng Tee Tang, Cherng Linn Teo
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Publication number: 20030202035Abstract: In a method for independently wiping a first and a second printhead of an inkjet printing device, a first and a second wiping assembly separated from each other are provided in the printing device. When the first wiping assembly wipes the first printhead, the second wiping assembly is separated from the second printhead so that the second wiping assembly does not simultaneously wipe the second printhead. When the second wiping assembly wipes the second printhead, however, the first wiping assembly is separated from the first printhead so that the first wiping assembly does not simultaneously wipe the first printhead.Type: ApplicationFiled: July 22, 2002Publication date: October 30, 2003Inventors: Ah Chong Tee, Bee Bee Ang
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Patent number: 6598955Abstract: A method for wiping a printhead of an inkjet printing mechanism is provided. The printhead surface defines a printhead plane. In the method, firstly a wiper is moved substantially parallel to the printhead plane for wiping a first portion of the printhead surface. After the first portion of printhead surface is wiped, the wiper is moved away from the printhead plane for wiping a second portion of the printhead surface.Type: GrantFiled: April 25, 2002Date of Patent: July 29, 2003Assignee: Hewlett-Packard Development Company, LPInventors: Ah Chong Tee, Tzy Woei Chu, Bee Bee Ang
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Patent number: 6588873Abstract: An inkjet printing device comprising first and second pens and first and second service stations, the first and second service stations being arranged in a split servicing configuration and being arranged to service the first and second pens respectively, the device being adapted to detect the failure of a said pen and to print in a reserve mode in response to the detection, the device being further adapted to implement a modified servicing routine during reserve mode printing, the modified servicing routine being adapted to omit servicing of the failed pen.Type: GrantFiled: April 29, 2002Date of Patent: July 8, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Simon Walsh, Ah Chong Tee, Bee Bee Ang
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Patent number: D448044Type: GrantFiled: September 19, 2000Date of Patent: September 18, 2001Assignee: Hewlett-Packard CompanyInventors: Seng Lim Wu, Chee Chuan Chew, Ah Chong Tee