Printer and printer paper tray

• US 6,474,884 B2
• Filed: 05/23/2000
• Issued: 11/05/2002
• Est. Priority Date: 04/12/1999
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Chiu, Andrew Shun Pui
• Primary Examiner(s): Hirshfeld, Andrew H.
• Assistant Examiner(s): WILLIAMS, KEVIN D
• Application Number:
  US09/577,234
• Publication Number:
  US 20020054780A1
• Time in Patent Office: 896 Days
• Field of Search: 400/691, 400/693, 400/88, 400/624, 400/642, 400/625, 347/108, 347/109, 347/152, 271/3.14, 271/4.01
• US Class Current: 400/624
• CPC Class Codes: B41J 13/103 for the sheet feeding section
• CPC Class Codes: B41J 13/106 for the sheet output section
• CPC Class Codes: B41J 29/023 with reduced dimensions
• CPC Class Codes: B41J 29/026 Stackable
• CPC Class Codes: B65H 1/266 Support fully or partially removable from the handling machine, e.g. cassette, drawer B65H1/027 takes precedence
• CPC Class Codes: B65H 2405/31 Supports for sheets fully removable from the handling machine, e.g. cassette
• CPC Class Codes: B65H 2405/32 Supports for sheets partially insertable - extractable, e.g. upon sliding movement, drawer
• CPC Class Codes: B65H 2405/33115 Feed tray juxtaposed to discharge tray

Abstract

The present invention provides a paper tray for a printer or a like device that includes both means for holding paper prior to printing thereon, and means for receiving paper exiting from the printer. In this way a single paper tray can both supply to and receive paper from the printer, and therefore it is only necessary to provide access to one side of the printer in which the tray is inserted. The printer may therefore be incorporated as part of a stack of other electrical/electronic items such as audio-visual equipment.

Claims

1. A print media input/output holding device, comprising:

a paper tray for simultaneously supporting from below stacked input media and stacked output media;

said paper tray having a front outer wall with upper and lower cut away recess areas;

wherein said upper recess area provides user access to paper receiving means forming part of said paper tray;

wherein said lower recess area provides user access to the paper tray to facilitate removal from a printer body;

wherein said paper receiving means is movable between a first operative position and a second operative position in which said paper receiving means is extendible to receive output media thereon;

said paper tray comprises a cassette for holding input media therein;

wherein said paper tray upon full insertion into said printer body moves the cassette from a lower position to a raised position to facilitate extracting in seriatim individual sheets of input media from said cassette; and

wherein the paper tray further comprises;

a pair of side walls;

wherein one of the paper tray side walls includes a pair of spaced apart, vertical slots;

wherein said cassette includes another pair of side walls; and

wherein one of the cassette side walls is formed with cam pins that extend through corresponding ones of the vertical slots formed in the side wall of the paper tray and engage cam surfaces located in a paper tray receiving body to move the cassette to the raised portion upon insertion of the paper tray into the paper tray receiving body.

2. A printer, comprising:

a paper tray including paper holding means and paper receiving means;

said paper holding means including a paper cassette for holding paper in advance of the paper being printed thereon by the printer;

said paper tray having a front outer wall with upper and lower cut away recess areas;

wherein said upper recess area provides user access to said paper receiving means;

wherein said lower recess area provides user access to said paper tray to facilitate its removal from the printer;

said paper receiving means is movable between a first operative position and a second operative position in which said paper receiving means is extendible to receive paper thereon;

wherein said paper tray is generally rectangular and is formed with side walls and end walls;

wherein said paper cassette is generally rectangular and formed with side walls and end walls, said paper cassette being closely received within at least the side walls and one end wall of the paper tray;

wherein said paper cassette is adapted to be moved upon insertion into the printer from a lower position in which the paper cassette is completely received within the paper tray such that the walls of the paper tray and the walls of the paper cassette are generally the same height, to a raised position in which the walls of the paper cassette are raised above the walls of the paper tray; and

wherein the side walls of the paper cassette are formed with cam pins that extend through corresponding vertical slots formed in at least one of the side walls of the paper tray, said cam pins engaging cam surfaces formed inside the printer for moving said cassette to the raised position.

3. A printer, comprising:

a paper tray received within the printer, said paper tray having an input media supporting portion and an output media supporting portion;

said input media supporting portion being moveable relative to said output media portion to a position above said output media supporting portion when said paper tray is received within the printer to facilitate extracting in seriatim individual sheets of input media supported from below by said input media supporting portion; and

said output media supporting portion being telescopically outwardly extendible away from said input media supporting portion after said paper tray is received within said printer to facilitate supporting from below individual sheets of output media ejected in seriatim from the printer.

4. A printer according to claim 3, further comprising:

cam means partially disposed within said printer and partially disposed on said paper tray to facilitate raising said input media portion a sufficient distance upwardly from said output media supporting portion so that it may be extended telescopically outwardly from said input media supporting portion.

5. A cassette paper tray for a printer, comprising:

a paper tray having an input media supporting portion and an output media supporting portion;

said input media supporting portion having cam pins disposed thereon, said cam pins being adapted to engage cam surfaces located within the printer upon insertion of said paper tray into the printer;

said input media supporting portion being movable relative to said output media supporting portion to a position above said output media supporting portion when said paper tray is received within the printer to facilitate extracting in seriatim individual sheets of input media supported from below by said input media supporting portion; and

said output media supporting portion being telescopically outwardly extendible away from said input media supporting portion when said paper tray is received within said printer to facilitate supporting from below individual sheets of output media ejected in seriatim from the printer.