Print media input device

Information

  • Patent Grant
  • 6603952
  • Patent Number
    6,603,952
  • Date Filed
    Thursday, December 13, 2001
    22 years ago
  • Date Issued
    Tuesday, August 5, 2003
    20 years ago
Abstract
The present disclosure relates to a print media input device. In one embodiment, the input device comprises a housing that defines an interior compartment that includes a storage compartment in which print media can be stored, and at least one lifting tray that is adapted to support print media that are to be fed to another device. In another embodiment, the input device comprises a housing that defines an interior space, a first lifting tray adapted to store print media, and a second lifting tray adapted to feed print media to another device, wherein the first and second lifting trays can be vertically displaced both independently and in unison.
Description




FIELD OF THE INVENTION




The present disclosure relates to a print media input device. More particularly, the disclosure relates to a high capacity input device that provides print media storage.




BACKGROUND OF THE INVENTION




High capacity input (HCI) devices are often used with printing devices (e.g., printers, photocopiers, etc.) to supply print media (e.g., paper) to the printing devices. By way of example, these HCI devices can store as many as 2000 sheets or more of paper. Normally, the print media are stacked on a lifting tray that displaces vertically as media are removed from the stack by a media feeding mechanism.




HCI devices typically can be configured to house various sizes of print media. For instance, several HCI devices are configured for use with letter-sized media (8.5 in.×11 in.), legal-sized media (8.5 in.×14 in.), 11 in.×17 in. media, A4 media (8.27 in.×11.69 in.), A3 media (11.69 in.×16.53 in.), etc. Although providing for increased printing options, such flexibility normally translates into inefficient space utilization. Specifically, when relatively narrow media are used in the HCI device (e.g., letter, A4), the majority of the HCI device compartment is unused. This is, of course, an undesirable result where “high capacity” storage/supply is desired.




In addition to wasting space, underutilization of the HCI device compartment also creates potentially hazardous situations. In particular, where one side of the compartment is filled to capacity with print media and the other is empty, the weight of the HCI device, and therefore the printing device, is not balanced. Therefore, when the printing device is to be moved, tipping can occur, e.g., when the printing device is wheeled over a bump.




From the foregoing, it can be appreciated that it would be desirable to have an HCI device that avoids one or more of the disadvantages noted above.




SUMMARY OF THE INVENTION




The present disclosure relates to a print media input device. In one embodiment, the input device comprises a housing that defines an interior compartment that includes a storage compartment in which print media can be stored, and at least one lifting tray that is adapted to support print media that are to be fed to another device.




In another embodiment, the input device comprises a housing that defines an interior space, a first lifting tray adapted to store print media, and a second lifting tray adapted to feed print media to another device, wherein the first and second lifting trays can be vertically displaced both independently and in unison.




In yet a further embodiment, the input device comprises an outer housing that defines an interior space, and a pull-out drawer that is slidable in and out of the interior space, the drawer supporting first and second lifting trays, the first lifting tray being adapted to store print media and the second lifting tray being adapted to feed print media to another device.




The present disclosure further relates to a method for operating an input device. In one embodiment, the method comprises the steps of supporting print media with at least one of two lifting trays contained within the input device, placing a media guide of the input device adjacent the print media, and controlling displacement of the two lifting trays depending upon the position of the media guide, wherein only one lifting tray is displaced when the media guide is in a first position and both lifting trays are displaced in unison when the media guide is in a second position.











The features and advantages of the invention will become apparent upon reading the following specification, when taken in conjunction with the accompanying drawings.




BRIEF DESCRIPTION OF THE DRAWINGS




The invention can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present invention.





FIG. 1

is a schematic perspective view of a printing device used with a high capacity input device.





FIG. 2

is a schematic perspective view of the high capacity input device shown in FIG.


1


.





FIG. 3

is a schematic front view of the high capacity input device shown in

FIG. 2

as used to provide separate storage and feeding of relatively narrow print media.





FIG. 4

is a schematic front view of the high capacity input device shown in

FIG. 2

as used to provide feeding of relatively wide print media.





FIG. 5

is a schematic perspective view of the high capacity input device shown in

FIG. 2

illustrating operation of a storage compartment door.











DETAILED DESCRIPTION




Disclosed is a print media input device that provides for print media storage. To facilitate description of the inventive device, an example input device is discussed with reference to the figures. Although this device is described in detail, it will be appreciated that it has been described for purposes of illustration only and that many modifications are feasible without departing from the inventive concept. After the description of the example device, operation of the device is described to explain the manner in which the device can be used.




Referring now to the drawings, in which like numerals indicate corresponding parts throughout the several views,

FIG. 1

illustrates a printing device


100


(shown in phantom lines) used with a high capacity input (HCI) device


102


. As indicated in

FIG. 1

, the printing device


100


can comprise a printer. Although a printer has been identified and shown, it is to be understood that the printing device


100


can comprise any device that is capable of generating hard copy documents including, for example, a photocopier, multifunction peripheral (MFP), facsimile machine, etc. As is further indicated in

FIG. 1

, the printing device


100


can be mounted atop the HCI device


102


such that the printing device and HCI device form an integrated unit.




The HCI device


102


is illustrated in greater detail in FIG.


2


. As indicated in this figure, the HCI device


102


comprises an outer housing


200


that defines an interior space


202


. Housed within the interior space


202


is a print media pull-out drawer


204


that, as indicated by arrow


206


, is capable of sliding in and out of the interior space along rails


208


(only one visible in FIG.


2


). The print media drawer


204


is adapted to physically support print media within the HCI device


102


during use and generally comprises a base


210


, a rear wall


212


, and opposed lateral walls


214


. Opposite the rear wall


212


is a front panel


216


(shown in phantom lines). As is discussed in more detail below, the front panel


216


comprises a drawer handle


218


, a storage compartment door


220


, and a storage compartment door handle


222


.




Together, the base


210


, rear wall


212


, lateral walls


214


, and the front panel


216


generally define an interior compartment


224


in which the print media can be housed (i.e., in the drawer


204


). As identified in

FIG. 2

, the interior compartment


224


contains first and second lifting trays


226


and


228


and at least one media guide


230


. Where the HCI device


102


is viewed from the perspective of

FIG. 2

(i.e., from its front), the trays


226


and


228


can be designated left and right lifting trays, respectively. As will be discussed below, these trays


226


and


228


are capable of lifting independently as well as in unison. The media guide


230


is used to align the print media within the interior compartment


224


as well as identify the size of the media to the HCI device


102


and, potentially, to the printing device


100


. As indicated by arrow


232


, the media guide


230


can be moved laterally side-to-side (right to left and vice versa) by the user to accommodate the width of the print media that has been placed in the compartment


224


. To facilitate lateral displacement of the media guide


230


as well as vertical displacement of the lifting trays


226


and


228


, the lifting trays can comprise media guide slots


234


. Although shown as continuous slots


234


, multiple separate slots (i.e., openings) could be used instead (e.g., positioned at common media widths), if desired.




In addition to the above-noted components, the HCI device


102


can include a lock mechanism


236


that can be used to lock the storage compartment door


220


against opening. As is described below, this lock mechanism


236


, where provided, is typically engaged when the HCI device


102


is used to supply relatively wide print media to the printing device


100


.




Although several different components have been identified in relation to

FIG. 2

, it is to be understood that several other features may be present in the device


102


which have been omitted from the figure for purposes of clarity. For example, not depicted in

FIG. 2

is a second media guide. As is known in the art, a second media guide that is adjustable in the front-to-back direction, i.e., which can be displaced in a direction orthogonal to the axis of displacement of the media guide


230


, can be provided. In addition, a lifting mechanism for lifting one or both of the lifting trays


226


and


228


has not been identified. Such lifting mechanisms are, however, known in the art. Additionally, a print media feed mechanism (e.g., pick rollers, etc.) has not been depicted but may be incorporated into the HCI device


102


as a means to feed print media to the printing device


100


.




In use, the HCI device


102


can be used to simultaneously and separately store and feed relatively narrow print media as well as feed relatively wide print media. Examples of these modes of operation are illustrated in

FIGS. 3 and 4

, respectively. Beginning with

FIG. 3

, illustrated is the feeding of print media (e.g., sheets of paper)


300


from a right-side stack


302


of print media. As indicated in

FIG. 3

, the right-side stack


302


is supported by the second lifting tray


228


, which is shown in a vertically displaced orientation. In this mode of operation, only the second lifting tray


228


is displaced as print media


300


are removed from the stack


302


due to information gained from the positioning of the media guide


230


. Specifically, when the media guide


230


is placed in contact with a stack of relatively narrow print media, i.e., print media having a width less than the width of the second lifting tray


228


, the media guide is positioned within the lateral edge of the second lifting tray


228


and only the second lifting tray is engaged for lifting by the lifting mechanism (not shown). Because of this arrangement, the first lifting tray


226


is available for storage of relatively narrow print media (of the same or different size and type). Therefore, a further stack


304


of print media


306


can be stored within the HCI device


102


on the first lifting tray


226


until such time when the print media


306


are needed.




With the manner of use described above, more of the interior compartment


224


of the print media drawer


204


can be used, thereby avoiding the wasting of space. In addition to better space utilization, other advantages can be obtained. For instance, where print media are more evenly distributed within the interior compartment


224


, the HCI device


102


, and any printing device


100


that is mounted on top of it, will be better balanced. Therefore, tipping is less likely. In addition, where print media (e.g., reams of paper) are stored within the interior compartment


224


with the wrappers removed, the media can acclimate to the environment, thereby improving print reliability.




Where the HCI device


102


is used as identified in relation to

FIG. 3

, it would be advantageous to be able to access the storage compartment (i.e., the portion of the interior compartment associated with the first lifting tray


226


) while the HCI device is in use feeding print media from the second lifting tray


228


to the printing device


100


. The storage compartment door


220


facilitates such functionality, as is illustrated in FIG.


5


. As shown in this figure, the storage compartment door


220


can be hinged at its base so as to open in similar fashion to an oven door. Accordingly, where a user wishes to add or remove print media from the storage compartment (i.e., lifting tray


226


), the user need only grip the storage compartment door handle


222


, open the door


220


, and add or remove the media. Notably, this procedure does not interrupt operation of the HCI device


102


in providing print media to the printing device


100


. Accordingly, the print media stored on the second lifting tray


228


are still available for input into the printing device


100


.




As noted above, many HCI devices can be used with relatively wide print media. For instance, 11 in.×17 in. paper and A3 paper can be accommodated by several known HCI devices. The HCI device


102


likewise provides this flexibility. Operation with a relatively wide print media is illustrated in FIG.


4


. As shown in this figure, the relatively wide media


400


can be placed across both lifting trays


226


and


228


and the media guide


230


brought into contact with the edge of the media stack


402


. With this arrangement, the media guide


230


is positioned outside of the lateral edge of the second lifting tray


228


and both lifting trays


226


and


228


are operated (i.e., lifted) in unison so as to provide a substantially continuous support surface for the print media


400


. In particular, unlike the situation shown in

FIG. 3

, the first lifting tray


226


is engaged by the lifting mechanism (not shown) along with the second lifting tray


228


so that the stack


402


can be lifted evenly within the interior compartment


224


. Although the compartment


224


cannot be used for separate media storage when operating in the mode shown in

FIG. 4

, it is to be noted that the HCI device


102


is still well balanced in that the relatively wide print media


400


use the majority of the compartment space.




To avoid unnecessary interruption of the operation of the HCI device


102


, the storage compartment door


220


can, optionally, be locked when the HCI device operates in the second mode of operation shown in FIG.


4


. By way of example, this locking can be provided by the locking mechanism


236


identified in FIG.


2


. As shown in that figure, the locking mechanism


236


can comprise a simple latch that is adapted to engage the door


220


when the position of the media guide


230


indicates that relatively wide media are contained within the interior compartment


224


of the HCI device


102


(i.e., wider than the second lifting tray


228


). In some arrangements, this locking mechanism


236


can be actuated when the first lifting tray


226


is engaged by the lifting mechanism.




While particular embodiments of the invention have been disclosed in detail in the foregoing description and drawings for purposes of example, it will be understood by those skilled in the art that variations and modifications thereof can be made without departing from the scope of the invention as set forth in the following claims. For instance, although a “high capacity” input device has been described, it is to be appreciated that the concepts discussed herein apply to print media input devices in general.



Claims
  • 1. A print media input device, comprising:a housing that defines an interior space; a first lifting tray adapted to store print media; a second lifting tray adapted to feed print media to another device; a media guide that is adapted to be placed against a stack of print media that is at least supported by the second lifting tray, wherein the media guide indicates a size of the print media; and wherein the first and second lifting trays can be vertically displaced both independently and in unison.
  • 2. The device of claim 1, further comprising a pull-out drawer that supports the first and second trays.
  • 3. The device of claim 2, wherein the drawer defines an interior compartment that can contain print media.
  • 4. The device of claim 3, wherein the interior compartment includes a storage compartment that is associated with the first lifting tray.
  • 5. The device of claim 4, further comprising a storage compartment door that provides access to the storage compartment without interrupting feeding of print media by the input device.
  • 6. The device of claim 5, further comprising a locking mechanism that is used to lock the storage compartment door.
  • 7. The device of claim 1, wherein a position of the media guide identifies a first mode of operation in which only the second lifting tray is to be vertically displaced or a second mode of operation in which both lifting trays are to be vertically displaced in unison.
  • 8. The device of claim 2, wherein the position of the media guide that identifies the first mode of operation is a position in which the media guide is placed within a lateral edge of the second lifting tray.
  • 9. The device of claim 7, wherein the position of the media guide that identifies the second mode of operation is a position in which the media guide is placed outside of a lateral edge of the second lifting tray.
  • 10. A print media input device, comprising:an outer housing that defines an interior space; and a pull-out drawer that is slidable in and out of the interior space, the drawer supporting first and second lifting trays, the first lifting tray being adapted to store print media and the second lifting tray being adapted to feed print media to another device, the pull-out drawer also comprising a media guide that is adapted to be placed against a stack of print media that is at least supported by the second lifting tray, wherein the media guide indicates a size of the print media.
  • 11. The device of claim 10, further comprising a storage compartment door that provides access to a storage compartment of the input device without interrupting feeding of print media by the input device.
  • 12. The device of claim 11, further comprising a locking mechanism that is used to lock the storage compartment door.
  • 13. The device of claim 10, wherein a position of the media guide identifies a first mode of operation in which only the second lifting tray is vertically displaced or a second mode of operation in which both lifting trays are vertically displaced in unison.
  • 14. The device of claim 13, wherein the position of the media guide that identifies the first mode of operation is a position in which the media guide is placed within a lateral edge of the second lifting tray.
  • 15. The device of claim 13, wherein the position of the media guide that identifies the second mode of operation is a position in which the media guide is placed outside of a lateral edge of the second lifting tray.
  • 16. A method for operating a print media input device, comprising the steps of:supporting print media with at least one of two lifting trays contained within the input device; placing a media guide of the input device adjacent the print media; and controlling displacement of the two lifting trays depending upon the position of the media guide, wherein only one lifting tray is displaced when the media guide is in a first position and both lifting trays are displaced in unison when the media guide is in a second position.
  • 17. The method of claim 16, wherein the first position of the media guide is one in which the media guide is within a lateral edge of a second of the two lifting trays.
  • 18. The method of claim 16, wherein the second position of the media guide is one in which the media guide is outside of a lateral edge of a second of the two lifting trays.
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Number Name Date Kind
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5102112 Takahashi Apr 1992 A
5150893 Uno et al. Sep 1992 A
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5347350 Nakahata et al. Sep 1994 A
5359402 Nakahata et al. Oct 1994 A