BACKGROUND

[0001] Imaging device® are peripherals commonly used in home arid office environments for obtaining printed copies of digital documents. Imaging devioes may have an input tray for holding and receiving print media. Further, in order to enable foe imaging devices to use of different sizes and types erf print media, the imaging devices may indude a width adjustor. The width adjustor can allow the imaging device to accommodate differently sized print media by allowing a user to appropriately align, depending on the size and type of the print media, the print iriedia on toe input tray. In other words, toe (Mint media can be aligned in a predefined position within toe input tray to allow adequate operation of the imaging device, for instance, without misalignment of toe print media.

BRIEF DESCRIPTION OF FIGURES

[0002] The detailed description is provided with reference to the accompanying figures. It should be noted that the description and toe figures are merely examples of the present subject matter, and are not meant to represent toe subject matter itself.

[0003] Figure 1 illustrates a schematic of an imaging device having a width adjustor that is extendable, according to an example.

[0004] Figure 2A and Figure 2B illustrate the width adjustor that is extendable, according to an example.

[0005] Figure 3 illustrates locking elements of the width adjustor, according to an «(ample.

[0006] Figure 4 illustrates a schematic of toe imaging device having a width adjustor that is extendable, according to another example.

[000h Figure 5A, Figure SB, and Figure 5C illustrate the width adjustor that is extendable, according to the other example.

[0008] Figure 6 illustrates locking elements of the width adjustor, according to the other example. [0009] Figure 7 illustrates a schematic of an input fray assembly for the imaging device, according to an example.

I00103 Figure 8A and Figure 8B illustrate a cross-sectional view of toe width adjustor, according to an example.

[0011] Figure 9A and Figure 9B illustrate a cross-sectional view of toe width adjustor, according to another example.

[00123 Throughout the drawings, identical reference numbers designate similar elements, but may not designate identical elements. The figures are not necessarily to scale, and the size of some parts may be exaggerated to more dearly illustrate the example shown. Moreover, the drawings provide examples and/or implementations consistent with toe description; however, toe description is not limited to toe examples and/or implementations provided in toe drawings.

DETAILED DESCRIPTION

[00133 Imaging devices are, generally, provided with a width adjustor to cooperate with an Input tray to accommodate differently sized print media on toe input bay. In an example, a user can position toe width adjustor with respect to the input tray to align the print media, for instance, to prevent misalignment of the print media. Accordingly, toe user may manually align the print media on the input tray, using the width adjustor, when a different size of toe print media is selected for imaging.

[0014] In certain cases, various components may be provided on toe imaging device, such as an automatic document feeder and a debris shield to protect entry of debris into the imaging device, which may conceal the media width adjustor, thereby, making toe width adjustor inaccessible to toe user. On the other hand, a length of toe width adjustor is designed keeping various factors in mind, including that the length does not exceed a certain height, for example, to prevent damage to toe width adjustor while transporting the imaging device as well as for aesthetic purposes. Accordingly, in an instance, toe length of the width adjustor may be designed in such a way that the width adjustor does not protrude beyond a level of a body of toe imaging device. [0015] Consider a general case where the input tray of the imaging device may be behind the imaging device, at an opposite end with respect to an output tray of the imaging device, for instance, where print media on which imaging has been done Is received. The user, in such a case, may either have to move towards the input tray or move the print device or extend over the imaging device to, first locate toe width adjustor and, then, operate the width adjustor to align toe (Mint media. Owing to the cumbersomeness of such operation, the user may decide to use the print media of same size for all print jobs to circumvent toe inconvenience in using such a width adjustor. Accordingly, in an example, toe user may decide to use the width adjustor in a default position that allows all sizes of toe print media to be used. However, such an operation may in effect disable the functionality of the width adjustor to properly align the print media in translation or rotation or both, during imaging. As a result, misalignment may occur in few of the print media sizes leading to an adverse effect on the quality of imaging.

[0016] Yet other approaches for an imaging device having an extendable width adjustor are described herein. According to an aspect, the approaches involve providing a protractible lever on the width adjustor. The protractile lew can be in retracted position when toe imaging device is not in use, for instance, when the imaging device is being transported. For making the width adjustor accessible to a user whilst toe imaging device is in operation, toe protractible lever can be brought into a protracted position.

[6017] In an example, the imaging device may indude a body which supports as well as houses various components of toe imaging device. The imaging device may further indude an image forming assembly and an input tray to hold print media to be fed to the image forming assembly. The image forming assembly, such as a printhead in case the imaging device is a printer, may achieve imaging on toe print media being fed to the image forming assembly. In addition, to enable toe imagine device to utilize print media of different sizes, the imaging device may indude a width adjustor movable relative to toe input tray to align toe print media on the input tray. The width adjustor is so positioned that it is concealed by the body of the imaging device. [0018] As mentioned previously, the width adjustor can be retractable and protractible so that even when the width adjustor is concealed by the body of the imaging device, in the protracted position, the width adjustor is accessible by the user. According to an aspect, the width adjustor may indude a slider which is movable relative to toe input tray and can indude a pnotractib!e lever which can provide access to the width adjustor to operate the slider. The pratractible lever may impart toe extendibility to the width adjustor.

[00193 In an example, the protractible lever may be protractible from a retracted position by a hinging motion with respect to the slider. Accordingly, for instance, the protractible lever can be coupled to the slider using a hinge joint, referred to as being hinged to the slider. In the retracted position, the protractible lever can be proximal to the slider, whereas in a protracted position, the protractible lever can extend from the slider.

[00203 In another example, the protractible lever may be protractible from toe slider by exhibiting a two-part motion with respect to toe slider. For instance, the two-part motion can include a hinging motion about the slider and a linear motion relative to the slider. In said example, the protractible lever can have a combination mounting with respect to the slider. Accordingly, the protractible lever can have a combination hinge and sliding mechanism with the slider to enable the two-part motion of the protractible lever.

[00213 Further, toe protractible lever may include a first locking element and the slider may include a second locking eiement to cooperate with the first locking element. Accordingly, in the protracted position, the first locking element in the protractible lever may latch to the second locking element in toe slider. For example, the first and the second locking elements may provide a snap-fit between the protractible lever and the slider to lock and hold toe slider in the locked position. According to an aspect, in the protracted position, toe protractible lever may be cantilevered with respect to toe slider, for instance, at toe position where the first and the second locking element are latched to each other, referred to as a latching point.

[0022] The imaging device having the extendable width adjustor having toe features as discussed above can provide a convenient mode for transporting toe Imaging device while preventing damage to the width adjuster by maintaining the width adjustor in a retracted position during transportation. At toe same time, once the imaging device is installed, the extendable facility of the width adjustor allows for a convenient operation for the user in adjusting and aligning toe different sizes of print media cm the input tray by enhancing accessibility of toe width adjustor. When being transported from a manufacturing facility, the imaging device can be shipped with the width adjustor in a folded condition, for instance, with toe protractible lever folded towards the Slider. In such a folded condition, referred to as a default condition of toe width adjustor, the protractible lever may block print media entry into the imaging device from toe input tray. Therefore, for first use of the imaging device, the user has to set-up the imaging device for use and, accordingly, toe user has to extend or unfold the protractible lever from toe slider to bring the width adjustor in an unfolded condition. From then on, toe width adjustor is visible for any subsequent use of toe imaging device for imaging. In addition, the protractible lever and the width adjustor are designed in a way that they demonstrate high performance and toe protractible lever does not collapse or unlatch during operation of the width adjustor.

[0023] The above aspects are further illustrated in the figures and described in toe corresponding description below. It should be noted that the description and figures merely illustrate principles of toe present subject matter. Therefore, various arrangements that encompass the principles of toe present subject matter, although not explicitly described or shown herein, may be devised from toe description and are included within its scope. Additionally, toe word “coupled” is used throughout for clarity of the description and may include either a direct connection or an indirect connection.

[0024] Figure 1 illustrates a schematic of an imaging device 100, according to an example of the present subject matter. Examples of toe imaging device 100 may include, but are not limited to, printers, scanners, copiers, fax machines, and the like. Accordingly, the imaging device 100 can recreate digital content, such as text, images, and pictures, on print media transferring print substance onto toe print media. The imaging device 100 may be part of toe network environment to cooperate and obtain imaging requests along with toe digital content for the Imaging requests. As part of the operation, the imaging device 100 may allow a user to employ differently sized print media, as will be described in the forthcoming sections.

[00253 The imaging device 100 can include a body portion 102, such as a housing, feat can house various components of the imaging device 100. The imaging device 100 can aiso include an image forming assembly 104 and an input tray 106 to hold print media and transport the print media towards the image forming assembly 104. The input bay 106 can include a feed region 108 formed thereon where the print media is held and along which the print media is provided to the image forming assembly 104. The feed region 108 can be a part of a feed path (not shown) of fee imaging device 100 that the print media follows from the input bay 106 to fee image forming assembly 104 for achieving fee imaging. In an example, the image forming assembly 104 can be a printhead in case fee imaging device 100 is a printer, such as a two-dimensional (2D) printer dr a three- dimensional (3D) printer, or a copier.

[0026] As previously mentioned, the imaging device 100 is capable of using differently sized print media for imaging. Accordingly, fee imaging device 100 can further Indude a width adjustor 110, which, as fee name suggests, can be used for aligning fee print media on fee input tray 106, depending on a size of the print media. For instance, fee width adjustor 110 can be used for adjusting a width of the feed region 108 of fee input tray, based on fee size or width of the print media being employed, to align fee print media for adequate imaging quality. Accordingly, the width adjustor 1 l0 can include a slider 112 which is movable relative to the input tray 106 to modify or adjust the width of fee feed region i 08.

[002h In addition, fee width adjustor 110 of fee imaging device 100 of the present subject matter can be extendable. Accordingly, the width adjustor 110 can further include a protractible lever 114 which is movable coupled to the slider 112 and is foldable with respect to fee slider. In other words, the protractible lever 114 is retractable and protractible with respect to fee slider 112 so feat the protractible lever 114 can be retracted or folded away when not in use, for instance, when the imaging device 100 is to be shipped or transported. On fee other hand, when the width adjustor 110 is to be actuated or moved for adjusting the width of the feed region 108, the protractible lever 114 can protracted from a retracted position and locked in feat position to operate fee width adjustor 110 with respect to the input bay 106.

[0028] In an example, the protractible lever 114 can be hinged to fee slider 112 so feat fee protractible lever 114 can protract from fee retracted position by exhibiting a hinging or rotational motion wife respect to the Slider 112. In other words, the protractible lever 114 is foldable wife respect to the slider 112 by a hinging, folding motion. Accordingly, fee protractible lever 114 protractible wife respect to fee slider 112 by a motion which emulates an unfolding motion about a hinge. In the protracted position, the protractible lever 114 can extend away from fee hinge with the slider 112 than in the retracted position and can, thereby, provide extend ibility to the width adjustor 110. Therefore, in such a case, tile width adjustor 110 can extend beyond the body portion 102 of fee imaging device 100, instead of being concealed thereby, and be visible and accessible to fee user.

[00293 Figure 2A and Figure 2B illustrate fee width adjustor 110 for fee imaging device 100, according to the example of fee present subject matter illustrated in Figure 1, the width adjustor 110 being extendable. While Figure 2A illustrates the width adjustor 110 in a folded or refracted position* Figure 2B illustrates fee width adjustorHO in the extended position. For fee sake of brevity and simplicity, Figure 2A and Figure 2B are described in conjunction with each other.

[0030] As mentioned above, fee width adjustor 110 includes fee slider 112 and fee protractible lever 114 movabiy coupled to the slider 112 and extendable from or protractible with respect to the slider 112. For instance, fee protractible lever 114 can be coupled to fee slider 112 by a hinge 202 that allows fee protractible lever 114 to fold towards the slider 112 in the retracted position, shown in Figure 2A, or to unfold away from the slider 112 in fee protracted position, shown in Figure 2B.

[0031] in fee protracted position, fee protractible lever 114 can be used by fee user to actuate fee width adjustor 110 with respect to fee input tray 106 to adjust the width of fee feed region 108 of fee input tray 106. The protractible lever 114 can, therefore, can be used for applying force on fee slider 112 to move fee slider 112 with respect to toe input tray 106 to adjust toe width of the feed region 108. For instance, arrow A depicts a general direction along which the slider 112, and, hence, toe width adjustor 110 can move with respect to the input tray 106. To allow the slidable movement of the slider 112 relative to toe input tray 106, the imaging device can haw a guide rail (not shown) to cooperate with toe slider 112. In an example, the guide rails can be formed CHI toe body portion 102 of the imaging device 100. Further, for the ease of handling toe protractible lever 114 for toe user to apply operational force to actuate toe slider 112, toe protractible lever 114 can include a holder 204 for grasping toe protractible lew 114, As will be explained law, toe holder 204 may be provided In proximity of the guide rail of the imaging device 100.

[00323 In the unfolded condition, when toe protractible lever 114 is protracted to be away from toe slider 112, toe protractible lever 114 may be lockable to toe slider 112. Far achieving such locking, in said example, the width adjustor 110 can include a locking mechanism 206. The locking mechanism 206 can include a first locking element 208 and a second locking element 210. In said example, the protractible lever 114 may have the first locking element 208 formed thereon and the slider 112 can have toe second locking element 210 to cooperate with toe first locking element 208. In the protracted position of the protractible lever 114, the first locking dement 208 can latch to the second locking dement 210 to lock the protractible lever 114 in that position. In toe protracted position, toe protractible lever 114 may be cantilevered with respect to toe slider 112, for instance, at toe position where toe first locking element 208 and the second locking element 210 are latched to each other,

[0033] In an example, the first locking element 208 and toe second locking element 210 may cooperate by a snap-fit lock. In said example, one of toe first locking element 208 and toe second locking dement 210 can be a snap-fit lug, while toe other can be a complimentary groove to cooperate with the snap-fit lug. The snap-fit lug can be formed as a protrusion extending from a body of toe protractible lever and the protrusion is tapered on its lateral wail. When the protractible lever 114 is actuated from toe retracted position to toe protracted position, toe protrusion of the snap-fit lug can latch Into the groove and lock toe protractible lever 114 In the protracted position. The first locking element 208 and the second locking element 210 are also shown in Figure 3. Figure 3 illustrates a magnified view of the first locking element 208 and the second locking element 210 in a latched condition, according to an example of the present subject matter.

[0034] In another example, the slider 112 can include a channel having the second locking element 210. In said example, the protractible lever 114, after hinging, is further slidably movable with respect to the slider 112 in the channel. Upon such sliding movement, die first locking element 208 can cooperate with the second locking element 210 to lock the protractible lever 114 in the protracted position with respect to the slider 112. The present example is explained in detail with reference to Figure 4, Figure 5A, Figure 58, and Figure 5C.

[0035] Figure 4 illustrates a schematic of toe imaging device 100, according to another example of the present subject matter, in said example, in a similar manner as in toe previous example, the protractible lever 114 can provide access to the width adjustor 110 to move the slider 112 by providing extendibility to toe width adjustor 110. The protractible lever 114 is movably coupled to the slider 112 so that toe protractible lever i 14 can be protractible from a retracted position with respect to the slider 112 to be extended away from toe slider 112. In the present example, the protractible lever 114 is coupled to the slider 112 by a dual-motion mechanism. Accordingly, the protractible lever 114 can be movably coupled to the slider 112 by a two-part motion with respect to the slider 112 to provide extendibility to the width adjustor 110. The two-part motion can include a hinging motion and a linear motion. Accordingly, the protractible lever 114 can be coupled to the slider 112 using a combination hinge and sliding mechanism to allow the protractible lever 114 to unfold with respect to the slider

112.

[0036] Figure 5A, Figure SB. and Figure SC illustrate toe width adjustor 110 for the imaging device 100, according to the example of the present subject matter illustrated in Figure 4. As mentioned previously, toe width adjustor 110 in the present example is extendable by a two-part motion of toe protractible lever 114 with resped to the slider 112. Figure 5A illustrates the width adjustor 110 in a folded or retracted position, Figure SB illustrates toe width adjustor 110 in an Intermediate position in the two-part motion, and Figure 5C illustrates the width adjustor 110 in the extended position. For the sake of brevity and simplicity, Figure 5A, Figure 5B and Figure 50 are described in conjunction with each other.

1003h In the present case, in toe same manner as toe previous example, in tiie protracted position, the protractib!e lever 114 can be lockable and used by the user to actuate the width adjustor 110 with respect to toe input bay 106 to adjust the width of the feed region 108 of the input tray 106. An operational force can be applied on toe protractibie lever 114 for applying force on the slider 112 to move toe slider 112 with respect to the input tray 106. For instance, arrow A depicts a general direction along which the slider 112, and, hence, toe width adjustor 110 can move with respect to the input fray 106. Further, toe protractibie lever 114 can indude a holder 204 for grasping the protractibie lever 114 and applying the operational force. The imaging device can have toe guide rail (not diown) to cooperate with the slider 112 to facilitate toe slidable movement of toe slider 112 relative to toe input tray 106.

[0038] As mentioned above, the protractibie lever 114 can be coupled to toe slider 112 by a combination hinge and sliding mechanism 502 that allows the protractibie lever 114 to fold towards the slider 112 in toe retracted position . shown in Figure 5A, or to unfold away from the slider 112 in the protracted position by exhibiting the two-part motion, shown in Figure 58 and Figure 5C, respectively. For instance, the protractibie lever 114 can first exhibit a hinging motion with respect to the slider 112 to achieve the intermediate position in which the protractibie lever is unfolded to extend away from the slider 112. In a subsequent motion, the protractibie lever 114 can exhibit a sliding motion with reference to the slider 112 to lock with the slider 112.

[0039] Accordingly, toe protractibie lever 114 can be coupled to toe slider

112 by a floating hinge 504 which allows the protractibie lever 114 to hinge with respect to the slider 112, The floating hinge 504, in effect, may allow for two parallel axes of rotation at different positions of toe floating hinge 504, and the two axes can be moved relative to the position of toe other. Therefore, the floating hinge itself can be moveable in a linear direction which allows toe protractibie lever 114 to exhibit linear motion or sliding motion with respect to the slider 112 after being unhinged. Further, the slider 112 can Indude a channel 506 for the protracti ble lever 114 to slide dong to achieve foe linear, sliding motion to complete the protracting motion and be locked with respect to the slider 112.

[0040] Similar to foe previous example, the protractible lever 114 can indude the first locking dement 208 (not visible in Figure 5A, Figure 5B, or Figure 5C) that cooperates with the second locking element 210 (not visible In Figure 5A, Figure 5B, or Figure 5C) of foe slider 112. In foe protracted position of foe protracti ble lever 114, the first locking element 208 can latch to foe second locking element 210 to lock foe protractible lever 114 in that position. In said example, the channel 506 can indude foe second locking element 210. The first locking element 208 and the second locking element 210 may cooperate by a snap-fit lock which is a combination hinge and sliding mechanism 502. In said example, one of the first locking element 208 and the second locking element 210 can be a snap-fit lug, while foe other can be a complimentary groove. The snap-fit lug can be formed as a tapered protrusion extending from a body of the protractible lever 114, whereas the complimentary groove can be formed in the channel 506 of the slider 112.

[0041] When the protractible lever 114 is actuated from the retracted position to the protracted position, the protrusion of foe snap-fit lug can align with the channd 506 and with foe actuation of the protracted lever 114 in a linear direction, the snap-fit lug can latch into foe complimentary groove and lock foe protractible lever 114 in the protracted position. For instance, foe complimentary groove can be formed as having a saw-tooth profile to cooperate with foe snap- fit lug when the protractible lever 114 exhibits linear motion when pushed towards the slider 112. The first locking element 208 and the second locking element 210, according to foe present example, are also shown in Figure 6.

[0042] Figure 6 illustrates a detailed view of the first locking element 208 and the second locking element 210 in a latched condition, according to said example of the present subject matter. Accordingly, Figure 6 shows a snap-fit lug 602 on foe protractible lever 114 inside the channel 506 (not visible in Figure 6) in foe slider 112, cooperating with the complimentary grooves (not shown). [0043] In certain cases, tee input tray 106 can be a serviceable part of tee imaging device 100. in other words, the input tray 106 can be an assembly which can be a replaceable component of the imaging device. Figure 7 illustrates a schematic of such an input tray assembly 700 for an imaging device, such as the imaging device 100, according to an example of the present subject matter.

[0044] in said example, the input tray assembly 700 can have similar components as those in the imaging device 100 explained previously and operate in a similar manner. For instance, the input tray assembly 700 can indude the input tray 106 to hold print media and transport the print media to provide or feed to an imaging device, such as the imaging device 100, when assembled with the imaging device 100. The input tray 106 can include the feed region 108 formed thereon where the print media is held and along which the print media is provided to the imaging device 100. The feed region 108 can form a part of a feed path (not shown) of the imaging device 100 when assembled.

[0045] The input tray assembly 700 can further indude the width adjustor

110 for aligning the print media on the input tray 106, depending on a size of the print media. For instance, the width adjustor 110 can be used for adjusting a width of the feed region 108 of tee input tray, based on the size or width of tee print media being employed and align the print media. Accordingly, the width adjustor 110 can include the slider 112 which is movable relative to the input bay 106 to modify or adjust the width of the feed region 108. In an example, the slider 112 can be formed so as to cooperate with a set of guide rails of tee imaging device 100 for sliding thereon, relative to the input tray 106, when the input tray assembly is assembled to the imaging device 100. In another example, the input tray assembly 700 may indude guide rails (not shown) in which case the slider 112 is movable with respect to the input tray 106 even when tee input bay assembly is not assembled to the imaging device 100.

[0046] In addition, as has been discussed, the width adjustor 110 of the imaging device 100 of tee present subject matter can be extendable. Accordingly, the width adjustor 110 can further include the protractible lever 114 which is movable coupled to tee slider 112 and is foidabie with respect to the slider. In other words, the protractible lever 114 is retractable and protractible with respect to the slider 112 so that the protractibfe lever 114 can be retracted or folded away when not In use, for instance, when the imaging device 100 hs to be shipped or transported. On the other hand, when the width adjustor 110 is to be actuated or moved for adjusting tire width of the feed region 108, toe protractib!e lever 114 can protracted from a retracted position and locked in that position to operate the width adjustor 110 with respect to toe input tray 106.

tf>047J In an example, the protractibie lever 114 can be hinged to the slider

112 so that the protractibie lever 114 can protract from the retracted position by exhibiting a hinging or rotational motion with respect to toe slider 112. In other words, the protractibie levy 114 is foldable with respect to the slider 112 by a hinging, folding motion. Accordingly, the protractibie levy 114 protractibie with respect to the slider 112 by a motion which emulates an unfolding motion about a hinge. In the protracted position, toe protractibie lever 114 can extend away from the hinge with the slidy 112 than in toe retraded position and can, thereby, provide extendibility to the width adjustor 110. Therefore, in such a case, toe width adjustor 110 can extend beyond the body portion 102 of the imaging device 100, instead of being concealed thereby, and be visible and accessible to toe user.

[0048] As mentioned above, toe input tray assembly 700 may indude other components, though not shown or discussed, but are similar to toe components shown and discussed with reference to Figure 1 , Figure 2A, Figure 2B, Figure 4, Figure 5A, Figure 5B, and Figure 5C.

[0048] Further, toe design of the width adjustor 110, toe protractibie lew

114, and the slider 112 is achieved in a way so as to achieve high performance with considerably low chances of failure. For instance, toe failure can be in terms of unlatching of the protractibie lever 114 from the slidy 112, when operational force is applied on the protractibie lever 114 in the protracted position, or in terms of lack of smooth operation to move the slidy 112 with respect to toe guide rails. The design considerations have been explained further with respect to Figure 8A, Figure 8B, Figure 9A and Figure 9B

[0050] Figure 8A and Figure 8B illustrate a cross-sectiona! view of the width adjustor 110, according to toe example where toe protractibie lever 114 is simply hinged to the slider 112. The protractibie lever 114 is illustrated as locked In the! protracted position with respect to the slider 112, in Figure SA and 8B. lockable by a single-part motion of the protractibie lever 114 with respect to the slider 112. Figure 8A illustrates application of operational force Fpus _h on the protractibie lever 114 in one direction, whereas Figure 8B illustrates the application of the operational force Fpush on the protractibie lever 114 in the opposite direction to that shown in Figure 8A.

[00513 In response to application of operational twee Fpush on foe protractibie lever 114 during operation, the protractibie lever 114 may experience a first reaction force Fri. For example, foe protractibie lever 114 may experience the first reaction force Fri at a point where foe protractibie lever 114 exerts foe operational force Fpush, for instance, the force applied by the user, onto foe slider 112. Tlie point at which foe protractibie lever 114 exerts such force onto the slider 112 is referred to as a lever-slider junction point. The first reaction force Fn may cause a second reaction force Fa at a point where the protractibie lever 114 is hinge 202, 504 to the slider 112, referred to as a latching point.

[00523 The magnitude of the second reaction force Fa may be dependent on a ratio of a distance Yi between the hinge 202, 5(34 and foe point of application of operational force Fpu* and a distance Y2 between the hinge 202, 504 and the point of application of foe first reaction force Fri. In an example, when the ratio is about 1, foe magnitude of the second reaction force Fa is such that it prevents disengagement of the latching between foe protractibie lever 114 and foe slider

112.

[0053] Following relations show that the ratio of foe distances Y1/Y2 has fo be considered to achieve good performance of the width adjustor 110 of the present subject matter. This is illustrated with respect to the following example force analysis of forces shown in Figures 8A and 8B. For the forces shown, (neglecting weight for this parte for simplicity), summing foe forces in x-exis direction:

[00543 Hence

[0055] Next, for moments about the hinge 202 between the protractible lever 114 and the slider 112, stemming for moments,

[0056] Hence,

[005h Therefore, to determine tile first reaction force Fn at foe middle support,

[0058] Considering the second reaction force Fa, from foe above relations. fix keeping intact the latching between the protractible lever 114 and the slider 112, the ratio of distances Y1/Y2 may be about 1. In an example, as can be seen from Figure 8A and 8B, the distance Y1 is greater than the distance Y2 as part of the design of the width adjustor 110. The above relation indicates that, therefore, the distance Yt may not be considerably greater than Y2, so that the value of ratio of distances Y1/Y2 is In the proximity of 1. This means teat the present example may be suited for a width adjustor 110 In which the length of the protractible lever 114 is considerably short and does not protrude much from behind the body portion 102.

[0058] Figure 9A end Figure 9B illustrate a cross-sectional view of the width adjustor 110, according to the example where foe protractible lever 114 is protractible with respect to foe slider 112 and is lockable in foe protracted position by a two-part motion of the protractible lever 114 with respect to the slider 112. Figure 9A illustrates application of operational force Fposn on foe protractible lever 114 in one direction, whereas Figure 9B illustrates the application of foe operational force Fpush on the protractible lever 114 in foe opposite direction to that shown in Figure 9A. Further, Figure 8A and 9B illustrate the protractible lever 114 to be in a latched position with respect to the slider 112:

[0060] in the present case, as explained previously with respect to Figure

8A and 8B, the protractibie lever 114 may experience foe first reaction force Fn, In response to application of operational force Fpush on the protractible lew 114 during operation, at a point where the protractible jew 114 exerts the operational force Fpueh. The first reaction force Fri may cause the second reaction force Fr2 at a point where toe protractible lever 114 is hinge 202, 504 to the slider 112, referred to as a latching point.

[0061] In an example, toe protractible lever 114 may be designed in a way that such that the second reaction force Fa is in a direction opposite to that of toe first reaction force Fri. This second reaction force Fa prevents toe disengagement of toe latching between toe protractible lever 114 and the slider 112. The direction and magnitude of the second reaction force Fa may be dependent on a ratio of a distance Yt between the hinge 202, 504 and the point of application of operational force Fpush and a distance Ya between toe hinge 202, 504 and the point of application of the first reaction force Frt. In an example, when the ratio is greater than 1 , the direction of toe second reaction force F a is opposite to that of toe first reaction force Fn, thereby, preventing disengagement of the latching between the protractible lever 114 and toe slider 112.

[0062] Summing toe femes in x-axis direction,

[0063] Hence,

[00643 Next, for moments about the hinge 504 between the protractible lever 114 and toe slider 112, summing for moments,

[0065] Hence,

[0066] Therefore, to obtain the second reaction force Fa at the bottom support,

[0067] For keeping the latch between the protractible lever 114 and toe slider 112 intact, the force direction of second reaction force Fa has to be in the opposite direction to that of direction of the first reaction force fn. Accordingly, from the above relations, to achieve the opposite direction of tire two reaction forces, the ratio of distances Y1/Y2 may be greater than 1. In other words, the distance Y1 has to be greater than the distance Y2. However, as can be seen from Figure 9A and 9B, the design of the width adjustor 110 is the distance Y1 is greater than the distance Y2, tire present example may be applicable for use in cases where a length of the protractible lever 114 can be designed to be considerably tong to protrude well above the body portion 102 of the imaging device 100.

[0068] Further, the width adjustor may be so designed that the point of application of the operational force Fpu* on the slider 112 may be selected to be in proximity of or as close as possible to guide rails on which the slider 112 moves relative to the input tray. In an example, tire point of application of the operational force Fpueh on the slider 112 can be the hinge 202, 504 between the protractible lever 114 and the slider 112, In another example, the point of application of the operational force Fpuai on the slider 112 can be the point of latching between the protractible lever 114 and the slider 112. For the purposes of understanding, the point of application of the operational force Fpu* on the slider 112 can be the point where the operational force Fpu* applied on the protractible lever 114 is transferred to the slider 112. In one case, the point of transference of toe fore» to the slider 112 can be the lever-slider junction point, as mentioned previously. Therefore, in said example, toe lever-slider junction point between the protractible lever 114 and the slider 112 can be provided In proximity of tire guide rail. Otherwise, a rotational moment may result, causing toe width adjustor 110 to rotate. In such a case, locking may occur, which may result in toe user having to apply a greater force, increasing Fpush. This may further lead to a point of failure of either the protractible lever 114 or the slider 112 or both.

[0069] Although examples for extendable width adjustors 110 in imaging devices 100 have been described in language specific to structural features and/or methods, it is to be understood that the appended claims are not limited to the specific features or methods described. Rather, the specific features and methods are disclosed as examples for extendable width adjustors 110 in imaging devices 100.