CN107683212B

CN107683212B - Portable dustless room printing cabinet

Info

Publication number: CN107683212B
Application number: CN201680031353.5A
Authority: CN
Inventors: 亚瑟·L·小威鲁塔托
Original assignee: Veltek Associates Inc
Current assignee: Veltek Associates Inc
Priority date: 2015-07-13
Filing date: 2016-07-13
Publication date: 2020-05-12
Anticipated expiration: 2036-07-13
Also published as: AU2016294408B2; NZ739021A; JP2018535111A; HK1252889A1; WO2017011525A1; KR20230106726A; KR102552392B1; KR20180029955A; AU2020273378A1; AU2020273378B2; CA2984143A1; JP6671455B2; CN107683212A; NZ777531A; AU2022205235A1; EP3322593A1; EP3322593A4; AU2016294408A1

Abstract

The present invention provides a portable printing cabinet, having: a housing having a substantially closed interior and an opening formed in a side surface thereof; a printing device located inside the housing; and a paper tray positioned outside the housing and communicating with the opening of the housing.

Description

Portable dustless room printing cabinet

Cross Reference to Related Applications

The present invention is a continuation-in-part application of co-pending U.S. patent application No. 14/033,045 filed on 2013, 9, 20, the disclosure of which is incorporated herein by reference.

Technical Field

The present invention relates to a portable printing cabinet for use in an aseptic environment. In particular, the present invention provides a multi-compartment printing unit that can be used in a clean room without introducing external contaminants (such as particulates and microorganisms).

Background

The sterile "clean room" environment requires that anyone or goods entering the room be free of some degree of contamination. Sterile environments are most often designed for use in manufacturing facilities and medical research and treatment facilities in the pharmaceutical, biotechnology, and healthcare industries, to name a few. The sterile cleanroom environment may be classified according to a variety of classification schemes, including the international organization for standardization ("ISO") cleanroom standard, wherein the highest level of sterilization is ISO1 cleanroom and normal ambient air (no sterilization) is classified as ISO 9. The ISO standard corresponds to the number of particles with the smallest particle size allowed per cubic meter. For example, an ISO 5 clean room allows the following: up to 100,000 particles having a particle size greater than 0.1 μm; up to 23,700 particles larger than 0.2 μm; up to 10,200 particles larger than 0.3 μm; up to 3,520 particles greater than 0.5 μm; up to 832 particles larger than 1 μm; up to 29 particles larger than 5 μm.

Various products are used in a clean room environment, including paper and paper products for recording manufacturing and test records in a controlled area. Such paper products include, but are not limited to, forms, logs, labels, and batch records. All of these files require detailed manufacturing and testing procedures to ensure that the correct procedures are followed and the results are recorded. In fact, these documents are subject to review by regulatory agencies such as the U.S. food and drug administration, and represent a mechanism by which these agencies can review manufacturing and testing process details, e.g., to ensure patient safety, after manufacturing, testing, or processing of pharmaceutical products.

However, paper and paper products are important sources of contamination due to shedding of fibers, particulates, and microorganisms (e.g., bacillus and mold). Approximately 40% of the paper products used in sterile environments are standard documents that can be preprinted, packaged and sterilized in known manner. However, the remainder of the document introduced into the sterile environment cannot be preprinted, sterilized and packaged in a timely manner. Their preparation requires information that is not available for several days or even hours before manufacture or testing begins. In some cases, they must be prepared while manufacturing and/or testing is ongoing. Because of this, these documents are forced into a sterile area without the need for prior treatment to reduce loose fibers, particulates and microorganisms. Therefore, they represent an important source of contamination.

To address this problem, the present invention provides a portable cleanroom printing cabinet that allows documents to be printed in a sterile environment without introducing any external contaminants.

Disclosure of Invention

Accordingly, the present invention provides a portable printing cabinet comprising: the printer includes a housing having a substantially closed interior and an opening formed in a side surface thereof, a printing device located inside the housing, and a paper tray positioned outside the housing and communicating with the opening of the housing.

The present invention also provides a portable printing cabinet, comprising: a housing having a substantially closed interior and an opening formed in a side surface thereof; an interior shelf positioned within the housing and defining an upper portion and a lower portion of the cabinet, wherein the upper portion has a top surface with a raised portion; a printing device located on the interior shelf; a paper tray positioned outside the housing and communicating with the opening of the housing; at least one L-shaped hinge cover forming a part of the elevated portion of the top surface of the upper portion of the housing; a second hinge cover fixed to a top surface of the upper portion of the housing and adjacent to the elevated portion; at least one air filtration unit located within the housing and having a plurality of vents positioned on an outer surface of the housing; and at least one power source.

Drawings

A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:

FIG. 1 is a perspective view of a portable printing cabinet according to an exemplary embodiment of the present invention;

FIG. 2 is a front cross-sectional view of the portable printing cabinet shown in FIG. 1 taken along line 2-2;

FIG. 3 is a side elevational view of the portable printing cabinet shown in FIG. 1;

FIG. 4 is a front perspective view of a portable printing cabinet according to an exemplary embodiment of the present invention;

FIG. 5A is a cross-sectional view of the front of the portable printing cabinet shown in FIG. 4, showing the hinged lid in an open position to allow access to the printing device according to an exemplary embodiment of the present invention; and

fig. 5B is a cross-sectional view of the front of the portable printing cabinet shown in fig. 4, showing a paper tray according to an exemplary embodiment of the present invention.

Detailed Description

Referring to fig. 1-3, the portable printing cabinet 100 of the present invention allows documents to be printed onto sterilized paper at high speed in a controlled clean room environment. Such cabinets reduce or eliminate the presence of biological loads (e.g., microorganisms such as bacillus and mold) on printed documents. Printing cabinet 100 further ensures that particulates and shed fibers from the paper are minimized or eliminated. The printing cabinet 100 of the present invention can be used in any ISO class controlled area, including ISO class 5 or lower class clean rooms.

As shown in fig. 1, printing cabinet 100 generally includes a housing 102 having at least four sides and a bottom 104. In the illustrated embodiment, the four sides are formed from thin rectangular panels and include a left side 130, a front side 124, a right side 134, and a back side 135. The

sides

124, 130, 134, and 135 preferably engage the bottom 104 of the housing 102 to form a substantially rectangular box-shaped enclosure 100. Preferably, the housing 102 forms an enclosure defining an interior space. The cross member 113 may connect the front side 124 of the housing 102 to the rear side 135 of the housing 102. Cabinet 100 may be supported by any structure known in the art. As shown in fig. 1, cabinet 100 is supported by a plurality of wheels 106 secured to bottom 104. The use of wheels 106 allows for removal by cabinet 100 out of the clean room when a cleaning or sterilization process is required. Legs may also be used if cabinet 100 does not need to be moved from one location to another.

The housing 102 may be formed of any durable material capable of storing printing devices and other items and preventing fluids or air from entering the interior of the cabinet 100. Indeed, the housing 102 preferably forms a sealed unit (with covers 110 and 112) so that contaminants cannot escape. According to one embodiment, the entire housing 102 is formed of stainless steel. According to another embodiment, other durable metal or plastic materials may be used. Metals are preferred so that sterilization of the unit can be performed by an autoclave or other similar device.

Referring now to fig. 2, a cross-section of printing cabinet 100 taken along line 2-2 of fig. 1 is shown. An internal shelf 118 may be provided that divides cabinet 100 into an upper portion 114 and a lower portion 120. In one embodiment, the interior shelf 118 is welded to the

sides

124, 130, 134, and 135 of the housing 102 to provide a sealForming a complete assembly. The upper portion 114 houses a printing device 116, which printing device 116 may be placed on an interior shelf 118. Any printing device known in the art may be used. Advanced printers that discharge a minimum level of particulates, reduce shedding, and reduce drop release are preferred. According to one embodiment, a CDT1600S printer manufactured by Colordyne Technologies LLC of Brukfield, Wisconsin may be used, and the CDT1600S printer may include

Printing technology. However, it will be appreciated that any suitable or standard printer may be utilized within the scope of the present invention.

The upper portion 114 of the cabinet 100 may also house an air filtration unit 133, the air filtration unit 133 having a fan aligned with an external vent 140 positioned on at least one side of the housing 102 (see fig. 1). Any filtration unit known in the art may be used, but it is preferred that the unit achieve a filtration rate of 99.97%. More specifically, for 0.5 micron particles, unit 133 must filter air from the interior of cabinet 100 at a rate of 99.97%. According to one embodiment, a high efficiency particulate air ("HEPA") filtration unit may be used. The fan of the air filter unit 133 blows air out of the cabinet through the filter. This maintains cabinet 100 under negative pressure via external vents 140, minimizing the risk of transferring particles into the external environment. Thus, if the door 122 or 132 or the

cover

110 or 112 is opened, the fan draws air into the interior of the housing, preventing particles from escaping. Additionally, the interior shelf 118 may have a plurality of vents (not shown) that allow for equalization of pressure between the upper portion 114 and the lower portion 120 in the cabinet 100.

According to a preferred embodiment, at least one hinged cover is secured to the housing 102 of the cabinet 100 so as to enclose the upper portion 114 and also allow easy access to the interior of the housing 102, such as to the printing device 116. As shown in fig. 1, the upper portion 114 is closed by two adjacent hinged

lids

110 and 112 having a generally triangular cross-section. Specifically, the hinged covers 110 and 112 may each have an angled edge 123 that engages a front side 124 and a rear side 135 of the housing 102. Front cover 110 may be hingedly connected to cross member 113 of housing 102 along a lateral side 115 extending laterally from side 124 to side 134. Any method of hinging one member to another may be used, including piano mechanical hinges, or including a polymeric strip (e.g., polypropylene) between the cover 110 and the cross member 113 along the side 115. When air filtration unit 133 sufficiently maintains the interior of cabinet 100 under negative pressure to minimize the risk of contamination, gaskets or rubber seals may optionally be used between hinged

covers

110 and 112 and housing 102 (on either side) to further ensure contamination protection.

The front cover 110 may include a paper tray 126 on an outer surface for receiving a printed document. In another embodiment, the paper tray 126 need not be on the front cover 110, but may be separate from and attached to the housing 102. Alternatively, the printing paper may be discharged from an opening in the case 102 on either side adjacent to the end of the printing device 116 (see fig. 4 and 5A to 5B).

As shown in fig. 2, the printing device 116 may include a paper guide 128 extending from one end thereof. The paper guide 128 may be a C-shaped paper dispensing guide having a plurality of rollers 131 along its length. In one embodiment, the paper guide 128 is a semi-circle with a radius between 3 and 8 inches so that various paper sizes can be accommodated. When the printing paper is discharged from the printing apparatus 116, it is moved in the direction "a" by the roller 131 on the paper guide 128. The paper guide 128 guides the paper upward to be received in the paper tray 126, and then the printing device 116 can be accessed without lifting the front cover 110. In this way, the paper guide 128 transfers paper from the printing device 116 inside the housing 102 to the paper tray 126 outside the housing 102. The printing paper should be discharged from the printing apparatus 116 and placed into the paper tray 126 described above under a force sufficient to push the paper along the rollers 131 of the paper guide 128. In one embodiment, a gear drive assembly having a motor (not shown) may be used to rotate the rollers to push or pull the printing paper along the paper guide 128. The front cover 110 includes an opening 129 communicating with the paper tray 126 to allow printing paper to pass through. Specifically, the paper guide 128 is attached to the top of an opening 129 in the front cover 110 so that paper can be placed on top of any previously printed paper in the paper tray 126. If the printing apparatus 116 encounters a paper jam or a jammed sheet needs to be removed from the sheet guide 128, only the front cover 110 needs to be lifted. The front cover 110 may include a handle 121 designed to be used by an individual wearing protective gloves.

The rear cover 112 may be constructed similarly to the front cover 110. The rear cover 112 may be used to feed paper into the printing device 116. Specifically, rear cover 112 may be hinged to cross member 113 of housing 102 along a lateral side 117 opposite the side connected to front cover 110. The hinge mechanism may be similar to that used for the front cover 110 (described above). The rear cover 112 may have a handle 119, the handle 119 being designed to be used by an individual wearing protective gloves. The first cover 110 and the second cover 112 are shown open in fig. 2, respectively.

The left side 130 of the housing 102 may include one or more doors 132 (one door shown in fig. 1) for accessing the printing devices 116 and the upper portion 114 of the printing cabinet 100. Specifically, although not limited to such an embodiment, the door 132 may be used for printer cartridge replacement. Because a high quality printing device according to the present invention is preferred, many print cartridges may need to be used and replaced often. As shown in fig. 2, a user may access the printing device 116 to replace a print cartridge by opening the door 132. Although door 132 is shown on left side 130 of cabinet 100 in fig. 1 and 2, it may be positioned on any side of cabinet 100 (e.g., front side 124) to allow access to printing device 116. Gaskets or rubber seals may optionally be used between the door 132 and the housing 102, as may the front cover 110 and the rear cover 112, respectively, to further ensure contamination protection.

As shown in fig. 3, the right side 134 of the housing 102 may include ports for connecting data cables and/or power cables. Specifically, two data connection ports 136 and one power outlet 138 are shown, but any number of ports may be present for various purposes. According to another embodiment, port 136 and receptacle 138 may be disposed on either side of cabinet 100. The data connection port 136 and the receptacle 138 may be present on the exterior of the housing 102 (as shown in fig. 3) and on the interior of the housing 102 for connection to the printing device 116 or any other device on the interior of the cabinet 100. Specifically, the printing device 116 and other electronic equipment may be plugged into the power outlet 138, for example, from the interior of the housing 102. The plugged-in AC power cord may then be plugged into the power outlet 138 from outside the housing 102. As shown in fig. 3, the power receptacle 138 external to the housing 102 is a male connector (having two or three pins) that is inserted into the housing 102 to prevent damage thereto. Inside the housing 102, the receptacle 138 is a female receptacle for receiving a power plug from the printing device 116 and other electrical components. The placement of the port 136 and the power receptacle 138 on the exterior surface of the cabinet 100 is advantageous in that the door 122 (discussed below) need not be opened to insert and remove the printing device 116, such as when moving the cabinet 100 from one location to another.

As a portable unit, cabinet 100 may operate on AC power (i.e., 110V AC or, globally, 220V AC in the united states) or battery power. In one embodiment, a battery (not shown) is located within lower portion 120 of cabinet 100 and is electrically connected to power receptacle 138. The battery may be of a type that will power the printing device 116 and the one or more air filtration units 133 for up to 6 hours. When not in use, the battery may be charged via power delivered through the receptacle 138.

The lower portion 120 of the printing cabinet 100 is located below the interior shelf 118 and may be used to store other items, such as sterilized paper. The lower portion 120 is accessible to a user via one or more doors 122 secured to either side of the cabinet 100. As shown in fig. 1 and 2, lower portion 120 has two doors 122 secured to a front side 124 of cabinet 100, but may include more than two doors. The lower portion 120 may also house an air filtration unit (not shown) similar to the filtration unit 133 housed in the upper portion 114. As discussed herein, a gasket or seal may be utilized between the outer periphery of the door 122 and the housing 102 to further ensure contamination protection.

In an alternative embodiment (not shown), the housing 102 is substantially closed so that there is no opening or door except for an opening 129 through which the print paper 129 passes into the paper tray 126. The presence of the air filtration unit 133 within the housing 102 maintains a negative pressure within the cabinet 100, thereby ensuring contamination prevention.

In practice, printing device 116 and air filtration unit 133 may be controlled via a wireless connection to a network or a hardwired connection. According to one embodiment using hard wiring, a USB cable or an Ethernet cable may be connected from a PC to port 136, and then another cable may be connected from port 136 to printing device 116 inside housing 102. In another embodiment, any known wireless communication method may be used, including but not limited to WiFi and

and (4) performing functions. Control of the printing device 116 may be accomplished within the cleanroom by any known wireless or wired means including, but not limited to, a network computer, a wireless network,

A PC or laptop computer. Upon receiving the signal, the printing device 116 prints the desired document and discharges it into the paper tray 126 for collection by the user. For example, the motor may activate the roller 131 when the printing device 116 is activated. In one embodiment, the motor may have a wireless or wired connection and may receive the same signals as the printing device 116.

To further ensure sterility of the clean room environment, the printing device 116 prints onto pre-sterilized paper. Any method known to those skilled in the art of sterilizing paper may be used, including but not limited to steaming, heating, chemical treatment or gamma irradiation. Preferably, a non-release paper product is used. In one embodiment, a plastic non-release print medium may be used, such as manufactured by PPG industries, Pittsburgh, Pa

However, any suitable paper or print medium may be used. The paper or print medium may be provided on a roll in a predetermined length, or may be provided in the form of a prepared sheet. As described above, the paper may be stored in the lower portion 120 of the cabinet 100 when not in use.

Printing cabinet 100 is fully portable. All contents (e.g., printing device 116, air filtration unit 133) located within cabinet 100 are enclosed within housing 102. The printing cabinet 100 can be wheeled to other locations and plugged into any standard AC power source.

Another embodiment of a portable printing cabinet 400 is shown in fig. 4 and 5A-5B. In this embodiment, printing cabinet 400 and its housing 402 generally have the same structure as printing cabinet 100, including at least four sides and a bottom surface, but upper portion 414 of housing 402 has a different shape and design. Like cabinet 100, printing cabinet 400 is supported by a plurality of wheels 106 affixed to its bottom surface 404, which allows cabinet 400 to be removed from the cleanroom when a cleaning or sterilization process is desired. The housing 402 may be formed of the same material as the housing 102 and should form a closed unit to prevent contaminants from escaping.

The interior of printing cabinet 400 is similar to the interior arrangement of cabinet 100, with interior shelves 418 provided that divide cabinet 400 into upper portion 414 and lower portion 420. The interior shelf 418 may be coupled to the housing 402 in the same manner as the interior shelf 118 is coupled to the housing 102 as described above. The upper portion 414 houses the printing apparatus 116, with the printing apparatus 116 positioned on an interior shelf 418. The lower portion 420 may house at least one air filtration unit 133, the air filtration unit 133 being aligned with the vent 140 positioned outside at least one side of the housing 402. Lower portion 420 may also include a door 422 on its front surface 423, which door 422 allows easy access to lower portion 420 and the storage area within air filtration unit 133.

In one embodiment, the upper portion 414 and the lower portion 420 are designed as separate and discrete housings, each having a top, a bottom, and four sides that generally form a substantially rectangular shape. The lower portion 420 may serve as a base unit that supports the upper portion 414. The upper portion 414 may serve as a printer unit that sits on the lower portion 420 and houses the printing device 116. In another embodiment, lower portion 420 is optional and upper portion 414 may house all components, including printing device 116 and at least one air filtration unit 133, and may be supported by legs (not shown).

As shown in fig. 5A-5B, the upper portion 414 has a top surface 442 and two opposing

ends

444 and 446. The top surface 442 has a raised portion 448 (see fig. 4) adjacent the end 446. The raised portion 448 is raised because the end 446 receives a larger sheet loading portion of the printing device 116 that allows a large amount of sheets to be received therein.

A portion of the elevated portion 448 is formed by at least one hinged cover 412 that is secured to the housing 402 and encloses the upper portion 414 while allowing easy access to the printing device 116. As best shown in fig. 5B, hinged cover 412 may be hinged to housing 402 using any rotatable attachment mechanism known in the art, including a piano-type mechanical hinge. When the hinged cover 412 is lifted using the handle 419, access to the printing device 116 is allowed to allow the user to feed paper into the printing device 116, fix a paper jam, and the like.

The hinged cover 412 generally has an "L" shape formed by two

engagement surfaces

452 and 454. The top surface 452 forms a portion of the raised portion 448 and the side surface 454 forms a portion of the side surface 456 of the upper portion 414. Upper portion 414 also has opposite sides 458 at end 444. The top surface 452 may include a window 460, such as a glass window, so that a user can see the printing device 116 and ensure that it is working properly (e.g., to check paper level) without having to open the hinged lid 412. Although the air filtration unit 133 maintains the interior of the cabinet 400 sufficiently under negative pressure to minimize the risk of contamination, a gasket or rubber seal may optionally be used between the hinged cover 412 and the housing 402 to further ensure contamination protection. A lever 462 is secured to the side 456 of the upper portion 414 of the housing 402 to assist a user in moving the printing cabinet 400.

As shown in fig. 5A, second hinged cover 410 forms a portion of top surface 442 of upper portion 414 at end 444. The second hinged lid 410 closes the upper portion 414 while also allowing easy access to the dispensing end 415 of the printing device 116 (i.e., where the printed documents are ejected). Second hinged lid 410 may be hinged to housing 402 using any of the means described herein.

When a user opens the first and second hinged covers 412, 410, the first and second hinged covers 412, 410 may remain in an open position such that the user does not need to hold them in place when accessing the interior of the printing cabinet 400. For example, first hinged lid 412 may have a lever 413 that holds it open and/or a slow closing mechanism (not shown) that prevents first hinged lid 412 from slamming down onto housing 402 when closed. The second hinged lid 410 may also include a lever and/or a slow closing mechanism.

The paper tray 426 is coupled to a side 458 of the upper portion 414 to receive the printing paper Z discharged from the printing device 116 in the direction Y. As shown in fig. 5A, the side 458 of the upper portion 414 has a generally rectangular opening 464 formed therein. The opening 464 is aligned with and communicates with the printing device 116, and in particular with the area where the printed document is discharged from the printing device 116. Since the printing device 116 is inside the printing cabinet 400, the paper exits from the printing device 116 and is directly discharged through the opening 464 to be received in the paper tray 426 outside the printing cabinet 400. In one embodiment, the paper tray 426 includes at least two pins 466 at one end thereof. The prongs 466 engage the side 458 at the opening 464 and act as hooks to hold the paper tray 426 in place when the weight of the paper tray 426 is allowed to rest on the edge of the opening 464. In this way, the paper tray 426 may be securely held in place at an angle extending toward the ground to allow the printing paper to slide down into the paper tray 426 in direction B as the printing paper exits through the opening 464. The paper tray 426 may also be easily removed for cleaning, replacement, or to allow access to the opening 464. The paper tray 426 is sized and configured to be able to receive various sizes of paper and a large number of paper. The paper tray 426 is typically formed of the same material (e.g., stainless steel) used to form the housing 402. In an alternative embodiment, the paper tray 426 need not be separate from the housing 402, but may be a lower portion of the housing 402.

Printing cabinet 400 may also include ports and/or power outlets (not shown), such as those shown in fig. 3. The ports and power outlets may be of any of the types and arrangements described above. Also, printing device 116 and air filtration unit 133 may be controlled via a wireless connection or a hardwired connection to a network as discussed herein.

While the invention has been described in connection with specific forms and embodiments thereof, it will be recognized that various modifications in addition to those discussed above may be made without departing from the spirit or scope of the invention. For example, equivalent elements may be substituted for those specifically shown and described, certain features may be utilized independently of other features, and in certain instances, certain positions of elements may be reversed or inserted, all without departing from the spirit or scope of the present invention as defined in the appended claims.

Claims

1. A printing cabinet for housing a printing apparatus having a dispensing end for discharging printed paper, the printing cabinet comprising:

a housing having a substantially enclosed interior for receiving a printing device, the housing having a top surface and a bottom surface and opposing side surfaces each extending between the top surface and the bottom surface, wherein an opening is formed in one of the side surfaces of the housing, the opening being aligned with a dispensing end of the printing device;

at least one L-shaped hinged cover forms part of the top surface and allows access to the printing device;

a second hinged cover forming another portion of the top surface and allowing access to the dispensing end of the printing device; and

a paper tray positioned outside the housing and aligned with the opening of the housing to receive printed paper discharged by the printing device, wherein the printing device is discrete from the housing and has a defined outer surface.

2. The printing cabinet of claim 1, further comprising an internal shelf within the housing and defining an upper portion of the housing and a lower portion of the housing.

3. The printing cabinet of claim 2, wherein the upper portion of the housing includes a top surface having a raised portion.

4. The printing cabinet of claim 3, further comprising at least one L-shaped hinged cover forming a portion of an elevated portion of a top surface of the upper portion of the housing.

5. The printing cabinet of claim 4, wherein the L-shaped hinged cover includes a window.

6. The printing cabinet of claim 1, further comprising at least one air filtration unit located within the housing and having at least one vent positioned on an exterior of the housing.

7. The printing cabinet of claim 6, wherein the at least one air filtration unit comprises a fan that forces air from the enclosed interior of the housing through the at least one vent to the exterior of the housing such that the enclosed interior is maintained at a negative pressure.

8. The printing cabinet of claim 1, wherein the housing is made of stainless steel.

9. The printing cabinet of claim 1, further comprising at least one door secured to the housing.

10. The printing cabinet of claim 1, further comprising a second air filtration unit located within the housing and having a plurality of vents positioned on an exterior of the housing.

11. The printing cabinet of claim 1, further comprising a plurality of wheels secured to a bottom surface of the housing and a handle secured to a side of the housing such that the printing cabinet is portable.

12. The printing cabinet of claim 1, further comprising at least one data connection port on the housing.

13. The printing cabinet of claim 1, further comprising a power outlet on the housing.

14. The printing cabinet of claim 13, further comprising a battery located within the housing and electrically connected to the power outlet.

15. The printing cabinet of claim 1, wherein the paper tray includes at least two prongs at one end for engaging an opening of the housing and removably engaging the paper tray.

16. A printing cabinet, comprising:

a housing having a substantially closed interior and an opening formed in a side surface thereof;

an interior shelf within the housing and defining an upper portion and a lower portion of the housing, wherein the upper portion has a top surface with a raised portion;

a paper tray positioned outside the housing and communicating with the opening of the housing;

at least one L-shaped hinged cover forming a portion of the elevated portion of the top surface of the upper portion of the housing;

a second hinge cover fixed to a top surface of the upper portion of the housing and adjacent to the elevated portion;

at least one air filtration unit located within the housing and having a plurality of vents positioned on an exterior surface of the housing; and

at least one power source.