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Title:
BIAS TABS
Document Type and Number:
WIPO Patent Application WO/2019/089035
Kind Code:
A1
Abstract:
In some examples, an imaging device may include a base portion coupled to an enclosed output tray, and a protrusion extending from the base portion into an aperture of the enclosed output tray.

Inventors:
KELLY GARETH RYAN (US)
STEPHENS JR (US)
Application Number:
PCT/US2017/059761
Publication Date:
May 09, 2019
Filing Date:
November 02, 2017
Export Citation:
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Assignee:
HEWLETT PACKARD DEVELOPMENT CO (US)
International Classes:
B41J13/10; B41L43/16
Domestic Patent References:
WO2013106671A12013-07-18
Foreign References:
US20120281257A12012-11-08
US20160088199A12016-03-24
Attorney, Agent or Firm:
HASAN, Nishat et al. (US)
Download PDF:
Claims:
What is claimed is:

1. An imaging device, comprising:

a base portion coupled to an enclosed output tray; and

a protrusion extending from the base portion into an aperture of the enclosed output tray.

2. The imaging device of claim 1 , wherein the enclosed output tray includes the aperture such that the enclosed output tray receives a print medium from the imaging device through the aperture.

3. The imaging device of claim 2, wherein the base portion is coupled to a top portion of the enclosed output tray inside the aperture of the enclosed output tray.

4. The imaging device of claim 1 , wherein the protrusion is formed of a flexible material.

5. The imaging device of claim 1 , wherein the enclosed output tray includes a mushroom pin such that the base portion is coupled to the enclosed output tray via the mushroom pin.

6. The imaging device of claim 5, wherein the mushroom pin couples the base portion to the enclosed output tray by an interference fit.

7. A bias tab of an imaging device, comprising:

a base portion coupled to an enclosed output tray of the imaging device, wherein the enclosed output tray includes an aperture;

a plurality of protrusions extending from the base portion into the aperture of the enclosed output tray such that a print medium received from the imaging device by the aperture of the enclosed output tray is directed to a receiving surface of the enclosed output tray.

8. The bias tab of claim 7, wherein the plurality of protrusions extend from the base portion into the aperture at an angle relative to the enclosed output tray.

9. The bias tab of claim 7, wherein the plurality of protrusions contact the print medium received from the imaging device to direct the print medium to the receiving surface of the enclosed output tray. 0. The bias fab of claim 7, wherein the plurality of protrusions are formed of a polyethylene material.

11. A system, comprising:

an enclosed output tray including an aperture, wherein the enclosed output tray is coupled to an imaging device;

a plurality of bias tabs coupled to the enclosed output tray, wherein each of the plurality of bias tabs include:

a base portion; and

a plurality of protrusions extending from the base portion; wherein the plurality of protrusions of the plurality of bias tabs extend into the aperture of the enclosed output tray.

12. The system of claim 1 1 , wherein the plurality of bias tabs are coupled to a top portion of the aperture of the enclosed output fray.

13. The system of claim 1 1 , wherein the enclosed output fray receives a print medium from the imaging device via the aperture, wherein the print medium is received by the enclosed output tray while traveling in a first direction.

14. The system of claim 13, wherein the plurality of protrusions contact the print medium to cause the print medium to travel in a second direction.

15. The system of claim 14, wherein the plurality of protrusions cause the print medium to travel in the second direction towards a receiving surface of the enclosed output tray of the imaging device.

Description:
BIAS TABS Background

[0001] An imaging device, such as a printer, may be used to process and output a physical medium. For example, an imaging device may perform a print job comprising printing text and/or graphics by transferring ink, toner, and/or other material to the physical medium.

Brief Description of the Drawings

[0002] Figure 1 illustrates a front view of an example of a bias tab consistent with the disclosure.

[0003] Figure 2 illustrates a rear view of an example of a bias tab and enclosed output tray consistent with the disclosure.

[0004] Figure 3 illustrates a perspective view of an example of a system consistent with the disclosure.

[0005] Figure 4 illustrates a perspective view of an example of a mushroom pin consistent with the disclosure.

[0006] Some imaging devices may utilize multiple physical media for a print job. As used herein, the term "imaging device" may, for example, refer to any hardware device, such as a printer, multifunction printer (MFP), or any other device with functionalities to physically produce representation(s) (e.g., text, images, models, etc.) on a medium., in examples, a "medium" may include paper, photopolymers, thermopolymers, plastics, composite, metal, wood, or the like. In some examples, an MFP may be capable of performing a combination of multiple different functionalities such as, for example, printing, photocopying, scanning, faxing, etc. For example, the function within an imaging device may be to reboot the imaging device, troubleshoot the imaging device, upgrade firmware, retrieve consumable level information, clone features, adjust security settings, perform a test, retrieve a scan, execute a print request, dear an alert, etc. As used herein, the term "print job" may, for example, refer to an application of ink, toner, and/or other material to a physical medium by an imaging device to process and output the physical medium. For example, an imaging device may process and output a physical medium including physical representations, such as text, images, models, etc.

[0007] In some examples, a print job may include application of printing material to multiple pieces of print media (e.g., multiple pages of paper). Each piece of print medium may be printed, moved from the imaging device, and stacked on a receiving surface of an enclosed output tray of the imaging device during the printing process for each piece of print medium in the print job. As used herein, the term "enclosed output tray" may, for example, refer to a case having an aperture extending continuously through two end portions and an inner portion of the case, where the aperture can receive a print medium from an imaging device such that the received print medium can move through the aperture of the inner portion of the case. As used herein, the term "receiving surface of an enclosed output tray" may, for example, refer to a surface at which print media may be received and/or arranged following a print job. For example, the receiving surface of the enclosed output tray can be a surface of the enclosed output tray at which print media can be received and/or arranged. In some examples, the receiving surface of the enclosed output tray can be a surface exterior from the aperture of the enclosed output tray, in some examples, the receiving surface of the enclosed output tray can be a surface in the interior of the aperture of the enclosed output tray. In some examples, the receiving surface of the enclosed output fray can be a surface that is partially on the exterior of the aperture of the enclosed output tray and partially in the interior of the aperture of the enclosed output tray.

[0008] In some instances, a printed medium may not accurately be delivered to the receiving surface of the enclosed output tray during a print job. For example, a leading edge of a print medium may contact a portion of the imaging device or other pieces of print media such that the piece of print medium may be redirected, causing the print medium to fold or otherwise miss the receiving surface of the enclosed output tray. The print medium may either be lost, or be obstructing a path of other print media, which may cause damage to components of the imaging device as a result of a print media jam in the imaging device. [0009] Bias tabs according to the disclosure may direct a print medium to a receiving surface of an enclosed output tray. For example, bias tabs may cause the print medium traveling in a first direction to be redirected in a second direction towards the receiving surface of an enclosed output tray. The print medium may be redirected such that the print medium is not folded causing a jam in the imaging device or to otherwise miss the receiving surface of the enclosed output fray,

[0010] Figure 1 illustrates a front view of an example of a bias tab 100 consistent with the disclosure. The bias tab 100 may include a base portion 102 and protrusions 104.

[0011] Base portion 102 of bias tab 100 may include protrusion 104.

Protrusions 104 may extend from base portion 102 of bias tab 100. As used herein, the term "protrusion" may, for example, refer to a projecting member. For example, protrusions 104 may be members projecting from base portion 102. In some examples, protrusions 104 may extend a distance of approximately 10-13 millimeters (mm) from base portion 102. In one such example, protrusion 104 may protrude 13 mm from base portion 102. However, examples of the disclosure are not limited to protrusions 104 extending 13 mm from base portion 102. For instance, protrusions 104 may extend a distance longer than 13 mm or shorter than 13 mm from base portion 102.

[0012] Protrusions 104 may be formed of a flexible material. For example, protrusions 104 may be formed of a flexible material such that protrusions 04 may flex from a static position in response to contact from another object, but return to the static position once the object ceases contact with protrusions 104. For instance, in some examples, protrusions 104 may be formed of a thermoplastic polymer resin. Examples of suitable thermoplastic polymer resins may include ultra-low density polyethylene, very low density polyethylene ("VLDPE"), linear low density

polyethylene ("LLDPE"), low density polyethylene ("LDPE"), medium density polyethylene ("MDPE"), high density polyethylene ("HDPE"), polypropylene, isotactic polypropylene, highly isotactic polypropylene, syndiotactic polypropylene, random copolymer of propylene and ethylene and/or butene and/or hexene, elastomers such as ethylene propylene rubber, ethylene propylene diene monomer rubber, neoprene, and blends of thermoplastic polymers and elastomers, such as for example, thermoplastic elastomers and rubber toughened plastics. In some examples, the protrusions 104 may be formed of polyethylene ferephthalate (PET). However, examples of the disclosure are not limited to the above described materials. For example, protrusions 04 may be formed of any other type of material to allow protrusions 104 to flex from a static position in response to contact from another object, but return to the static position once the object ceases contact with protrusions 104.

[0013] Base portion 102 may be of a same material as protrusions 104. For example, base portion 102 may be formed of a flexible polyethylene material, although examples of the disclosure are not limited to base portion 102 being formed of a flexible polyethylene material. In some examples, base portion 102 and protrusions 104 may be of a same piece of flexible material. For instance, bias tab 100 may be manufactured such that protrusions 104 and base portion 102 are of one continuous piece of flexible material.

[0014] Base portion 102 may include mounting apertures 105. As used herein, the term "aperture" may, for example, refer to an opening in a material. For example, mounting apertures 105 may be an opening through the material of base portion 102. Mounting apertures 105 may be utilized to couple bias tab 100 to an enclosed output tray, as is further described in connection with Figure 4.

[0015] Although base portion 102 is illustrated in Figure 1 as including three mounting apertures 105, examples of the disclosure are not so limited. For example, base portion 102 may include more than three mounting apertures or less than three mounting apertures.

[0018] As illustrated in Figure 1 , protrusions 104 may extend from base portion 02 to form a U shape. Protrusions 104 may extend from base portion 102 into an aperture of an enclosed output tray, as is further described in connection with Figures 2 and 3. Additionally, base portion 102 may be coupled to the enclosed output tray, as is further described in connection with Figures 2 and 3.

[0017] Figure 2 illustrates a rear view 206 of an example of a bias tab and enclosed output tray consistent with the disclosure. As illustrated in Figure 2, rear view 208 may include a base portion 202 (e.g., base portion 102, previously described in connection with Figure 1), protrusions 204 (e.g., protrusions 104, previously described in connection with Figure 1), enclosed output tray 208, and aperture 210.

[0018] Similar to the example shown in Figure 1 , the bias tab may include a base portion 202 and protrusions 204. As illustrated in Figure 2, protrusions 204 may extend into an aperture 210 of enclosed output tray 208. For example, aperture 210 may be an opening through enclosed output fray 208.

[0019] Base portion 202 may be coupled to enclosed output tray 208. For example, base portion 202 may be coupled to enclosed output tray 208 via mushroom pins included in enclosed output tray 208, as is further described with respect to Figures 3 and 4.

[0020] Enclosed output tray 208 may receive the print medium from an imaging device. For example, media (e.g., paper) which has been printed by the imaging device may be moved from the imaging device to a receiving surface of enclosed output tray 208 of the imaging device via aperture 210 of enclosed output tray 208. From the perspective of rear view 206 as illustrated in Figure 2, the print medium being moved from the imaging device may be received by enclosed output tray 208 as the print medium passes into the page through aperture 210. In other words, enclosed output tray 208 includes aperture 210 such that enclosed output tray 208 may receive the print medium from the imaging device through aperture 210. As used herein, the term "print medium" may, for example, refer to paper, photopolymers, thermopolymers, plastics, composite, metal wood, compact-discs, digital video discs, Biu-ray discs, transparencies, photo paper, and/or stickers, among other types of print media which has had a print job performed on it.

[0021] Although illustrated in Figure 2 as including one bias tab, examples of the disclosure are not so limited. For example, more than one bias tab (e.g., three bias tabs) may be coupled to enclosed output tray 208.

[0022] The bias tab may be coupled to a top portion of enclosed output tray 208. For example, in the rear view 206 illustrated in Figure 2, the bias tab may be coupled to a top portion of enclosed output tray 208. The bias tab may be coupled to enclosed output tray 208 in an inner portion of aperture 210 of enclosed output tray 208. For example, the bias tab may be recessed into aperture 2 0 by a distance.

[0023] Figure 3 illustrates a perspective view of an example of a system 312 consistent with the disclosure. System 312 may include bias tab 300 (e.g., bias tab 100, previously described in connection with Figure 1), base portion 302-1 , 302-2, 302-3 (referred to collectively herein as base portion 302) (e.g., base portion 102, 202, previously described in connection with Figures 1 and 2, respectively), protrusions 304-1 , 304-2, 304-3 (referred to collectively herein as protrusions 304) (e.g., protrusions 104, 204, previously described in connection with Figures 1 and 2, respectively), enclosed output tray 308 (e.g., enclosed output tray 208, previously described in connection with Figure 2), first direction 314, second direction 316, and mushroom pin 318.

[0024] Enclosed output tray 308 may include an aperture 310 (e.g., aperture 210, previously described in connection with Figure 2). As previously described in connection with Figure 2, enclosed output tray 308 may receive media print medium from the imaging device via aperture 310. Enclosed output tray 308 may be coupled to an imaging device to receive the print medium from the imaging device via aperture 3 0. For example, enclosed output tray 308 may receive the printed medium traveling in a first direction 314 as illustrated in Figure 3, as is further described herein.

[002S] As illustrated in Figure 3, the system 312 may include a plurality of bias tabs 300. Each of the plurality of bias tabs 300 may include a base portion 302 (e.g., base portion 302-1 , 302-2, 302-3) and a plurality of protrusions 304 (e.g., protrusions 304-1 , 304-2, 304-3). Each of the plurality of protrusions 304 may extend from their respective base portions 302. For example, protrusions 304-1 may extend from base portion 302-1 , protrusions 304-2 may extend from base portion 302-2, and protrusions 304-3 may extend from base portion 302-3.

[0026] Enclosed output tray 308 may include a mushroom pin 318. As used herein, the term "pin" may, for example, refer to a fastener utilized to attach one thing to another. Base portions 302 of the respective bias tabs may be coupled to enclosed output tray 308 via a mushroom pin. For example, base portion 302-1 may be fastened to enclosed output tray 308 via mushroom pin 318.

[0027] Mushroom pin 318 may couple base portions 302 of bias tabs 300 to enclosed output tray 308 by an interference fit. As used herein, the term

"interference fit" may, for example, refer to a fit between two parts in which an external dimension of one part slightly exceeds an internal dimension of a part into which it has to fit For example, mushroom pin 318 may include a tip portion and a recessed portion. A dimension of the tip portion of mushroom pin 318 may be slightly larger than a mounting aperture included in base portion 302-1 such that the mounting aperture of base portion 302-1 may slip over the tip portion of mushroom pin 318 and rest in the recessed portion of mushroom pin 318, as is further described in connection with Figure 4. [0028] Although not shown in Figure 3 for clarity and so as not to obscure examples of the disclosure, each of base portions 302-2 and 302-3 may be coupled to enclosed output tray 308 by a mushroom pin. For example, a mushroom pin similar to mushroom pin 318 may couple base portion 302-2 to enclosed output fray 308, and a mushroom pin similar to mushroom pin 318 may couple base portion 302-3 to enclosed output tray 308,

[0029] Further, although not shown in Figure 3 for clarity and so as not to obscure examples of the disclosure, each of base portions 302-1 , 302-2, and 302-3 may be coupled to enclosed output tray 308 by three mushroom pins. For example, base portion 302-1 may be coupled to enclosed output tray 308 by three mushroom pins. Similarly, base portion 302-2 may be coupled to enclosed output tray 308 by three mushroom pins, and base portion 302-3 may be coupled to enclosed output tray 308 by three mushroom pins, in other words, each base portion 302 may be coupled to enclosed output tray 308 by three mushroom pins. However, examples of the disclosure are not so limited. For example, each base portion 302 may be coupled to enclosed output tray 308 by more than three mushroom pins or less than three mushroom pins,

[0030] The plurality of bias tabs 300 may be coupled to a top portion of aperture 310 of enclosed output tray 308. For example, the base portions 302 of each bias tab may be coupled to a top portion of aperture 310 via mushroom pins. For instance, base portion 302-1 of a bias tab 300 may be coupled to a top portion of aperture 310 of enclosed output tray 308 via mushroom pin 318. Base portions 302- 2 and 302-3 of the remaining bias tabs 300 may be coupled to the top portion of aperture 3 0 of enclosed output tray 308 via mushroom pins (e.g., not shown in Figure 3) similar to mushroom pin 318.

[0031] The plurality of protrusions 304 may extend into aperture 310 of enclosed output tray 308. The plurality of protrusions 304 may extend into aperture 310 such that protrusions 304 are in a path of a print medium being received by aperture 310 of enclosed output tray 308 to cause a leading edge of the print medium to contact the plurality of protrusions 304 as the print medium enters aperture 310, as is further described herein, in some examples, protrusions 304 may extend by a distance of 13 mm from base portion 302 such that protrusions 304 extend into aperture 310 of enclosed output tray 308 by 13 mm, although examples of the disclosure are not limited to 13 mm. For example, protrusions 304 may extend into aperture 310 by a distance of more or less than 13 mm.

[0032] Protrusions 304 may extend from base portions 302 into aperture 310 of enclosed output tray 308 at an angle relative to the enclosed output tray 308. For example, protrusions 304 may extend into aperture 310 of enclosed output tray 308 at an angle of 45° relative to a top portion of aperture 310 of enclosed output tray 308. In other words, an angle between protrusions 304 and a top portion of aperture 310 of enclosed output tray 308 may be 45°.

[0033] Although the angle between protrusions 304 and a top portion of aperture 310 of enclosed output tray 308 is described as being 45°, examples of the disclosure are not so limited. For example, the angle between protrusions 304 and a top portion of aperture 310 of enclosed output tray 308 may be more than 45° or less than 45°.

[0034] Although not shown in Figure 3 for clarity and so as not to obscure examples of the disclosure, the top portion of aperture 310 may include a plurality of recessed areas. Bias tabs 300 may be coupled to the plurality of recessed areas in the top portion of aperture 3 0. The plurality of recessed areas may be angled. For example, the plurality of recessed areas may be angled at 45° such that when the plurality of bias tabs 300 are coupled to the recessed areas in the top portion of aperture 310, the angle between protrusions 304 and a top portion of aperture 310 of enclosed output tray 308 is 45°. However, examples of the disclosure are not so limited. For example, the recessed areas may be angled more than 45° or less than 45° to allow the angle between protrusions 304 and a top portion of aperture 310 of enclosed output tray 308 may be more than 45° or less than 45°, respectively.

[0035] As described above, enclosed output tray 308 may receive the print medium from the imaging device via aperture 310. The print medium may be received by aperture 310 of enclosed output tray 308 while traveling in a first direction 314. For example, once the print medium has been printed by the imaging device, the print medium may exit the imaging device traveling in first direction 314. While traveling in first direction 314, the print medium exiting the imaging device may enter aperture 3 0 of enclosed output tray 308.

[0038] Protrusions 304 may contact the print medium while the print medium is traveling in first direction 314 as the print medium enters aperture 310 of enclosed output tray 308. For example, a leading edge of the print medium may contact protrusions 304 as the leading edge of the print medium enters aperture 310 of enclosed output tray 308.

[0037] As a result of the print medium contacting the protrusions 304, the print medium may begin to travel in second direction 316. For example, the print medium may enter aperture 310 of enclosed output tray 308 traveling in first direction 314, contact protrusions 304, and as a result of the contact with protrusions 304, travel in second direction 316. Second direction 316 may be based on the angle between protrusions 304 and a top portion of aperture 310 of enclosed output fray 308. For instance, the angle between protrusions 304 and the top portion of aperture 310 of enclosed output tray 308 may dictate second direction 316 of the print medium.

[0038] Protrusions 304 may cause the print medium to travel in second direction 316 towards a receiving surface of enclosed output tray 308 of the imaging device. Protrusions 304 may cause the print medium to travel towards the receiving surface of enclosed output tray 308 of the imaging device in second direction 316 rather than the print medium continuing to travel in first direction 314. Causing the print medium to travel in second direction 316 towards the receiving surface of enclosed output tray 308 may prevent the print medium from contacting other parts of the imaging device, such as other parts of enclosed output fray 308, which may result in the print medium folding and causing an ejection path of print media from the imaging device from being blocked, and/or from missing the receiving surface of enclosed output tray 308.

[0039] Bias tabs, as used herein, may allow for a print medium to be directed to a receiving surface of enclosed output tray 308 of an imaging device such that the print medium may be stacked and in an intended order. In an environment such as microgravity and/or zero gravity, bias tabs may prevent the print medium from floating out of the imaging device and missing the receiving surface of enclosed output tray 308 and/or prevent the print medium from contacting other parts of the imaging device which could lead to an ejection path of the print media from the imaging device being blocked which may result in a print media jam in the imaging device. Rather, the bias tabs may utilize the forward momentum of the print medium as it is being ejected from the imaging device to change the direction of the print medium towards a receiving surface of enclosed output tray 308. Bias tabs, according to the disclosure, may allow for print media that is orderly, while preventing print media jams, resulting in higher imaging device performance and reliability.

[0040] Figure 4 illustrates a perspective view of an example of a mushroom pin 418 consistent with the disclosure. Mushroom pin 418 may include tip portion 420 and recessed portion 422.

[0041] As previously described in connection with Figure 3, the enclosed output tray (e.g., enclosed output tray 308, previously described in connection with Figure 3) may include a mushroom pin 418. Mushroom pin 418 may couple bias tabs to the enclosed output tray, as is further described herein.

[0042] Mushroom pin 418 may include tip portion 420. Tip portion 420 may include a dimension that may be slightly larger than a dimension of a mounting aperture (e.g., mounting apertures 105, previously described in connection with Figure 1) included in a base portion of a bias tab. The mounting aperture in the base portion of the bias tab (e.g., not shown in Figure 4 for clarity and so as not to obscure examples of the disclosure) may be aligned with tip portion 420 of mushroom pin 418. In order to couple the bias tab to the enclosed output tray, tip portion 420 of mushroom pin 418 may be pushed through the mounting aperture in the base portion of the bias tab in direction 424 as illustrated in Figure 4. The dimension of tip portion 420 being slightly larger than the dimension of the mounting aperture included in the base portion of the bias tab may cause an interference fit between the base portion of the bias tab and mushroom pin 418 as the tip portion 420 of mushroom pin 418 is forced through the mounting aperture in the base portion of the bias tab.

[0043] Once the tip portion 420 of mushroom pin 418 is forced through the mounting aperture in the base portion of the bias tab, the base portion of the bias tab may rest in recessed portion 422. The dimension of the mounting aperture included in the base portion of the bias tab may be a same or similar dimension of the dimension of the recessed portion 422 of the mushroom pin 418.

[0044] As previously described in connection with Figures 1 and 3, the base portion of the bias tab may include three mounting apertures. The three mounting apertures may be forced through three corresponding mushroom pins included on the enclosed output tray.

[0045] Utilizing mushroom pin 418 to couple bias tabs to the enclosed output tray may prevent the bias tabs from becoming unfastened from the enclosed output tray. For example, the interference fit between the bias tab and mushroom pin 418 may prevent the bias tab from becoming unfastened from the enclosed output tray as a result of vibrations, etc.

[0048] The figures follow a numbering convention in which the first digit or digits correspond to the drawing figure number and the remaining digits identify an element or component in the drawing. Similar elements or components between different figures may be identified by the use of similar digits. For example, 102 may reference element "02" in Figure 1 , and a similar element may be referenced as 202 in Figure 2.

[0047] Multiple analogous elements within one figure may be referenced with a reference numeral followed by a hyphen and another numeral or a letter. For example, 302-1 may reference element 302-1 in Figure 3 and 302-2 may reference element 302-2, which may be analogous to element 302-1. Such analogous elements may be generally referenced without the hyphen and extra numeral or letter. For example, elements 302-1 and 302-2 may be generally referenced as 302.

[0048] The above specification, examples and data provide a description of the method and applications, and use of the system and method of the present disclosure. Since many examples may be made without departing from the spirit and scope of the system and method of the present disclosure, this specification merely sets forth some of the many possible example configurations and

implementations.