Abstract: A liquid discharge device includes a liquid discharge head to discharge a liquid, a head holder to hold the liquid discharge head, a sub-carriage to hold the head holder, a carriage to hold the sub-carriage and move in a main scanning direction, an adjuster supported by the sub-carriage, and a guide to guide the sub-carriage to be movable in a vertical direction. The carriage includes a reference shaft extending in the main scanning direction, the reference shaft supports the sub-carriage via the adjuster and positions the sub-carriage in the vertical direction, the adjuster adjusts an inclination of the sub-carriage with respect to the reference shaft, the sub-carriage includes a sub-reference shaft extending in parallel with the reference shaft, and the guide allows the sub-reference shaft to move in the vertical direction while restricting a movement of the sub-reference shaft in a sub-scanning direction perpendicular to the main scanning direction.

Abstract: A printing apparatus includes a conveyance unit configured to convey a tray on which a printing medium is placed, a printing unit configured to perform printing on a print surface of a printing medium on the tray based on a print job, and a first detection unit configured to detect a relative position relationship between the tray and a printing medium placed on the tray. In addition, a control unit is configured to control the printing unit not to perform printing in a case where the first detection unit detects that the printing medium is not placed at an appropriate position, and a selecting unit is configured to select whether to continue printing irrespective of results of the detection by the first detection unit.

Abstract: The present teachings relate to various embodiments of an hermetically-sealed gas enclosure assembly and system that can be readily transportable and assemblable and provide for maintaining a minimum inert gas volume and maximal access to various devices and apparatuses enclosed therein. Various embodiments of an hermetically-sealed gas enclosure assembly and system of the present teachings can have a gas enclosure assembly constructed in a fashion that minimizes the internal volume of a gas enclosure assembly, and at the same time optimizes the working space to accommodate a variety of footprints of various OLED printing systems. Various embodiments of a gas enclosure assembly so constructed additionally provide ready access to the interior of a gas enclosure assembly from the exterior during processing and readily access to the interior for maintenance, while minimizing downtime.

Abstract: A liquid discharge head includes a recording element substrate including a discharge port. A channel member is configured to supply the recording element substrate with a liquid. An electric wiring board is configured to supply the recording element substrate with power. A plate-like protective member is directly or indirectly fixed to the channel member. In a case where a direction in which the recording element substrate is viewed from the channel member is defined as downward, the protective member includes a first bent portion configured to be bent in a transverse direction of the liquid discharge head. The first bent portion is located at a position that is above an upper end of the channel member and below a midpoint of a line segment connecting the upper end of the channel member and an upper end of the protective member.

Abstract: A print head capable of forming dots on a print medium based on print data and a print medium are caused to perform relative movement in a specified direction, and a speed of the relative movement is set according to the number of dots to be formed in an area of a specified size. Whether to set the speed of the relative movement to a first speed is determined according to the number of dots to be formed in an area of a first size on the print medium. Whether to set the speed of the relative movement to a second speed lower than the first speed is determined according to the number of dots to be formed in an area of a second size which is smaller than the area of the first size in the specified direction.

Abstract: An inkjet printer comprising: an ink storage that communicates with a nozzle from which ink is ejected; a carriage that moves along a guide member and has the ink storage mounted thereon; an ink tube through which ink supplied to the ink storage passes; and a coupling member that connects the ink storage and the ink tube; wherein the carriage has a first wall located at a position that is in a first direction from the coupling member, and a second wall located at a position that is in a second direction from the coupling member, the first direction and the second direction being along the direction of carriage movement, and the second direction being opposite the first direction, and when viewed in the direction of carriage movement, the coupling member is superimposed with the first wall and is superimposed with the second wall.

Abstract: The present disclosure provides a printing control method, a printing control apparatus, a storage medium, and a printing device. The printing control method may be used for resetting a printing platform of the printing device to a preset starting position, including: detecting whether the limit switch is in a trigger state when receiving an electrical power-on signal of the printing device or a start printing command; controlling the printing platform to move according to a state of the limit switch and a corresponding route strategy; and controlling the printing platform to stop moving at the preset starting position when the state of the limit switch is detected that changed from a non-trigger state to a trigger stat, so that the printing platform stops at the preset starting position.

Abstract: A liquid discharging apparatus includes a head unit having a liquid discharging head that has a driving element, a position detection circuit that outputs a position information signal indicative of a position of the liquid discharging head, a first circuit that controls drive of the driving element based on a first signal, and a first conversion circuit that converts a first optical signal into the first signal; and a driving circuit having a second circuit that outputs a second signal, a second conversion circuit that converts the second signal into the first optical signal, a first cable, and a second cable, in which the first cable connects the first conversion circuit to the second conversion circuit, and propagates the first optical signal, and the second cable electrically couples the position detection circuit to the second circuit, and propagates the position information signal.

Abstract: A printing assembly includes: a print chassis having a fixed sleeve and a print module slidably and releasably mounted in a respective sleeve. The print module has a supply module and replaceable printhead cartridge, the printhead cartridge being slidably and releasably mounted to the supply module. The printhead cartridge is removable from the print module only when the print module is released from the fixed sleeve.

Abstract: An ink jet recording method, which uses an ink jet recording apparatus including: first and second inks corresponding to aqueous inks containing a pigment; a recording head in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and the first and second ejection orifice arrays are arranged to at least partially overlap each other; and a cleaning member, includes: recording; and cleaning, wherein at least one of the first and second inks contains a resin, and a content of the resin in the second ink is larger than a content of the resin in the first ink.

Abstract: A stay rod includes a guide to slidably hold a functional part, the guide to be fixed to an apparatus body, a plurality of first parts each including a guide surface to form the guide, and a plurality of second parts each including a mounting surface to be mounted to the apparatus body. The plurality of first parts and the plurality of second parts are combined to have an elongated box-shaped cross section in which the guide surface of the plurality of first parts faces the mounting surface of the plurality of second parts, the plurality of first parts is arranged side by side in a longitudinal direction of the stay rod and is joined to the plurality of second pars at each joint formed at each end of the plurality of first parts.

Abstract: The present invention refers to a marking assembly suitable for providing markings, for example a text, an image, a barcode, or the like, on objects like containers, packages or products. The marking assembly comprises a control unit configured to receive a signal from a sensor and configured to either activate an actuator to move a marking device to an elevated position with an increased speed, or to activate a release device to disengage the actuator, thereby moving the marking device by a counterweight.

Abstract: The ink jet recording method, which uses an ink jet recording apparatus, including: a first ink and a second ink containing a pigment; and a recording head having an ejection orifice surface in which a first ejection orifice array for ejecting the first ink and a second ejection orifice array for ejecting the second ink are formed, wherein the first ejection orifice array and the second ejection orifice array are sequentially arranged from the bottom in the direction of gravity to be adjacent to each other and arranged to at least partially overlap each other, includes: a recording step, wherein a true specific gravity of the pigment in the first ink is smaller than a true specific gravity of the pigment in the second ink.

Abstract: The remaining amounts of inks in tanks are obtained, and, based on the obtained results, whether direction for printing an image next is to be inverted with respect to a set direction. This can reduce a difference in ink remaining amount between the tanks corresponding to print heads.

Abstract: A recording device includes a carriage that is movable in a first and a second direction, a cable, a tube, a cable clamp member that extends from the carriage in a first direction and passes a turned curved portion to extend from the turned curved portion in a second direction, a spring member provided along the cable clamp member, and a clamp member supporting portion extending along the first and the second direction. The spring member is configured to generate spring force in a direction in which hanging down of the cable clamp member at a path portion extending from the carriage to the turned curved portion is suppressed, and the spring member is partially in contact with the clamp member supporting portion at a path portion extending in the second direction from the turned curved portion, in an intersecting direction intersecting the first and the second direction.

Abstract: An integrated inkjet module includes: first and second opposite end brackets; a single print module asymmetrically positioned between the end brackets, the print module having an elongate printhead; a wiper carriage positioned between a first end of the print module and the first end bracket, the wiper carriage being configured for longitudinally wiping the printhead; and a print module carrier mounted between the first and second end brackets. The print module includes a mounting arm bridging over the wiper carriage and the print module carrier is slidably liftable relative to the first and second end brackets.

Abstract: An inkjet module includes: first and second opposite end brackets; a print module slidably mounted between the end brackets for raising and lowering the print module relative to the end brackets, the print module having a front face, a rear face and an elongate printhead positioned at a lower surface of the print module; and a cable array including a plurality of laterally arranged cables connected to the print module. The cables of the cable array extend in a common plane parallel to the rear face of the print module and follow a curved path such that an outer cable is longer than an inner cable.

Abstract: A print engine includes: a media support chassis defining a curved media feed path; a maintenance chassis mounted on the media support chassis; a plurality of maintenance modules fixedly mounted between sidewalls of the maintenance chassis; a plurality of guide rails extending radially upwards from the maintenance chassis; a plurality of print module carriers, each print module carrier being slidingly received on respective parallel guide rails; a plurality of print modules releasably engaged with a respective one of the print module carriers; and a lift mechanism for radially raising and lowering the plurality of print module carriers relative to the maintenance chassis between a maintenance position a printing position.

Abstract: A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing, in-situ, the cured film to light generated by a second source of light under conditions which induce light absorption by unreacted photoinitiator in the cured film; measuring the absorbance of the cured film; and determining a degree of cure in the cured film from the measured absorbance and predetermined calibration data.

Abstract: A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extending unit that is accommodated or extended, and at least one sub-extending unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extending unit, and is provided with a first protrusion portion protruding toward the accommodating space.

Abstract: There is provided an inkjet recording apparatus includes a conveyance unit, a head unit, an attachment member, a fixing member, and a support member. The conveyance unit conveys a recording medium on an outer circumferential curved surface of a cylindrical conveyance drum rotating around a cylindrical shaft. The relative position of the attachment member to the cylindrical shaft is fixed. The head unit has a nozzle ejecting ink and is attached to the attachment member such that the outer circumferential curved surface faces an opening of the nozzle across a predetermined relative distance. The fixing member fixes a fixing portion in the head unit to the attachment member. The fixing portion is between a center of gravity of the head unit and the cylindrical shaft. The support member supports the fixed head unit by applying force which disturbs rotation of the head unit.

Abstract: A liquid discharge apparatus includes a liquid discharge head to discharge liquid, a head holder to hold the liquid discharge head, a sub-carriage to hold the head holder, and a carriage to hold the sub-carriage and which is movable in a main scanning direction. The carriage includes a reference extending along the main scanning direction that holds and positions the sub-carriage in the carriage. The head holder includes a rotation reference around which the head holder is rotatable with respect to the sub-carriage, and an angle adjuster to regulate a rotation and adjust an angle of the rotation of the head holder with respect to the sub-carriage.

Abstract: A mounting assembly (1) for mounting a plurality of inkjet print modules in an adjoining relationship along a longitudinal direction of the mounting assembly (1) comprises a linear guide (13, 14) extending in the longitudinal direction for supporting the plurality of modules such that the modules are movable along the linear guide (13, 14). It further comprises for each of the plurality of modules a carrier (100.1 . . . 4) for mounting an inkjet print head including an array of nozzles formed on a nozzle face, wherein the carriers (100.1 . . . 4) are supported on the linear guide (13, 14) such that they are movable along the linear guide (13, 14), wherein in a mounted configuration of the inkjet print heads their nozzle face is arranged on a first side of the linear guide (13, 14). Each carrier (100.1 . . . 4) comprises a first adjustment mechanism for adjusting a distance of the carriers 100.1 . . .

Abstract: A patterning apparatus is provided. The patterning apparatus includes a plurality of liquid jet units arranged in one or more groups and configured to jet an anti-etching liquid onto a surface of a substrate. The patterning apparatus also includes a plurality of exposure units configured to expose light on the anti-etching liquid jetted on the surface of the substrate to heat and cure the jetted anti-etching liquid to form anti-etching patterns on the surface of the substrate. Further, the patterning apparatus includes a control unit configured to control motion status and jetting status of the plurality of liquid jet units and motion status and exposure status of the plurality of exposure units, so as to form the anti-etching patterns at a predetermined line width and thickness.

Abstract: A liquid discharge apparatus that includes a first movable unit displaceably attached to a fixture portion, a rail unit that includes a planar portion formed along a first direction and is displaceable according to displacement of the first movable unit, and a carriage attached to the rail unit so as to be movable in the first direction and whose posture is changeable according to angle of the planar portion with respect to the fixture portion viewed in the first direction. The first movable unit includes a first adjuster that adjusts position of the rail unit with respect to the fixture portion in a second direction and a second adjuster that adjusts the angle of the planar portion with respect to the fixture portion as viewed in the first direction by pivoting the rail unit around a pivot axis that extends in the first direction.

Abstract: A liquid ejecting apparatus which ejects liquid onto a medium includes a carriage which includes a control substrate configuring at least a part of a control unit which controls driving of the entire liquid ejecting apparatus, an ejecting unit which ejects the liquid, and a driving substrate which is connected to the control substrate and the ejecting unit, and drives the ejecting unit, in which the carriage is provided with a fixing unit which fixes a position of the driving substrate with respect to a position of the ejecting unit. By adopting the liquid ejecting apparatus with such a configuration, it is possible to prevent a load from being applied to the ejecting unit from the driving substrate side.

Abstract: A liquid ejection head unit includes a page-wide type liquid ejection head detachably attached to a liquid ejecting apparatus and a protective member detachably attached to the liquid ejection head. The liquid ejection head includes an ejection port surface on which ejection ports are provided. The liquid ejection head includes a first rail portion, the protective member includes a second rail portion along a longitudinal direction thereof, and the protective member is made to slide in a first direction along the longitudinal direction of the liquid ejection head and cover the ejection port surface. The protective member is attached to the liquid ejection head, and then the liquid ejection head and the protective member are moved in a second direction opposite to the first direction and are removed from the liquid ejecting apparatus.

Abstract: A carriage assembly for a printer that reciprocates along scan directions. The carriage assembly includes at least one printhead having a row of jetting channels for ejecting a print fluid, and reservoirs mounted on the carriage assembly that each supply the print fluid to the printhead. At least one of reservoirs is mounted on the carriage assembly to be offset from the row of jetting channels.

Abstract: Present invention relates to a locking and emptying system of a refill cartridge containing nutrients or chemicals, said system comprising at least one replaceable refill cartridge, at least one receiving socket for the refill cartridge, in every receiving socket a locking mechanism of the refill cartridge, discharge means of the refill cartridge and control means of the locking system and for each refill cartridge a emptying container. The control means of the locking system are set to release the empty refill cartridge from the receiving socket only when the emptying container has enough free volume to receive the content of the next refill cartridge.

Abstract: A recording apparatus includes a recording head, an ink supply section, a carriage, and a detection unit. The ink supply section supplies ink to the recording head. The carriage reciprocates in predetermined directions and is provided with the recording head and includes a passage junction to be connected to or disconnected from an ink passage formed between the ink supply section and the recording head. The detection unit converts a result of detecting a detection target into an electrical signal. One of the detection target and the detection unit is mounted in the carriage. The carriage has an ink guiding mechanism that guides the ink from a region positioned below the passage junction in a vertical direction to the detection target or an installation part for the detection unit.

Abstract: After dot image data is created via a halftone process, dot size determination is performed in step S110, it is determined there is a smaller dot in front motion in step S112, and, when the smaller dot is to be allocated to a front nozzle line, a moving process is performed thereon in step S116. Once moved by one dot, the dot position of a smaller dot is allocated to a rear nozzle line and thus discharged from the rear nozzle line that is less affected by an air flow.

Abstract: A method for printing at least one section of a flat or preferably curved surface of an object includes using a relative movement between an inkjet head and the object to move the inkjet head along a first path and print a first track in the process and to move the inkjet head along a second path and print a second track in the process. A first track edge of the first track and a second track edge of the second track meet at a point and enclose an angle between about 1° and about 179° at the point. The method permits the curved surface to be printed without perceptible track connections.

Abstract: A method of printing a pattern from at least two rows of fluid ejection nozzles, said nozzles ejecting a first fluid in a multi-pass printing mode, the method comprising: dividing the pattern to be printed between the rows of fluid ejection nozzles; applying masks to the rows of fluid ejection nozzles for printing with selected nozzles of each of the rows of fluid ejection nozzles during each pass; wherein a first mask for printing from a first row of fluid ejection nozzles during an n-th pass is different from a second mask for printing from a second row of fluid ejection nozzles during said n-th pass.

Abstract: A recording apparatus has a carriage in which a head unit including a recording head is disposed. By turning the head unit within the carriage about a pivot that extends in a direction intersecting a head surface, the angle of the recording head is adjusted while maintaining good contact between a data storage unit included in an ink cartridge and a contact terminal included in the carriage.

Abstract: An ink jet printer includes: a print section; a container that houses a print associated member; an insertion port into which the container is inserted; an openable cover that openably covers a front surface of the insertion port; and a lock mechanism that locks the openable cover. The lock mechanism includes a through hole provided in the openable cover, and a displacement member provided in a cover-adjacent portion and configured to move between a locked position in which it engages the through hole to regulate opening movement of the openable cover and an unlocked position in which it disengages from the through hole to permit opening movement of the openable cover.

Abstract: A detachable body for a printing apparatus enables positioning a board for electrical connection to a printing apparatus, while also reducing manufacturing cost. The detachable body for a printing apparatus includes a case that is mounted to and detached from a printing apparatus that performs printing on a sheet, and a board that is attached to an attachment surface that is a surface of the case, and that is electrically connected to the printing apparatus by coming into contact with detachable body-side contacts provided on the printing apparatus when the case is mounted to the printing apparatus. The attachment surface of the case is provided with an attaching portion to which the board is attached. The attaching portion surrounds the board and positions the board in a direction along the attachment surface of the case by coming into contact with peripheral edges of the board.

Abstract: A method is provided that is implemented on a control device connected with an inkjet printer, which includes an inkjet head having an ink discharging surface, a head scanning unit reciprocating the inkjet head relative to a recording sheet along a scanning direction parallel to the ink discharging surface, and a wave shape generating mechanism deforming the recording sheet in a predetermined wave shape that has tops of portions protruding in a first direction toward the ink discharging surface and bottoms of portions recessed in a second direction opposite to the first direction alternately arranged along the scanning direction, the method including acquiring gap information related to a gap between the ink discharging surface and each individual one of the tops and the bottoms on the recording sheet, and determining whether the gap information acquired for each individual one of the tops and the bottoms is abnormal.

Abstract: A printing method for carrying out printing with respect to various printing target objects through a more appropriate method using an inkjet head, the printing method including a screen preparing step of preparing a mesh-like screen, an ink discharging step of discharging an ink droplet from the inkjet head to one surface of the screen, a viscosity increasing step of enhancing a viscosity of the ink on the screen, an ink push-in step of pushing the ink with enhanced viscosity from the one surface side toward other surface side of the screen, the step including pushing in the ink while a medium, or a target object of printing, and the other surface of the screen are making contact to attach the ink with enhanced viscosity to the medium, and an ink fixing step of fixing the ink attached to the medium to the medium.

Abstract: A printing apparatus includes a liquid discharge device, a carriage, and a controller. The liquid discharge device includes a first nozzle row to discharge a first liquid to form an image and a second nozzle row to discharge a second liquid of a type different from the first liquid. The carriage is mounted with the liquid discharge device and reciprocally movable in a main scanning direction. The controller is configured to control the liquid discharge device to discharge the second liquid onto a region of a medium including another region onto which the first liquid is discharged. The controller includes a control unit to control the liquid discharge device to discharge the second liquid from the second nozzle row in both of forward movement and backward movement of the carriage and discharge the first liquid from the first nozzle row in one of the forward movement and the backward movement.

Abstract: The present invention provides a mechanism that improves accuracy for positioning a head relative to a carriage, and easily performs positional adjustment for the head. A carriage unit includes a first carriage structure and a second carriage structure. The first carriage structure includes a first sliding face that can slide along a guide shaft, and a head can be mounted on the first carriage structure. The second carriage structure includes a second sliding face that can slide along the guide shaft, and can hold the first carriage structure to allow positional adjustment for the first carriage structure in a predetermined direction in which a position where the first sliding face contacts the guide shaft is to be shifted.

Abstract: There is provided an ink jet recording apparatus capable of preventing a user from erroneously performing an opening and closing operation of a valve in the supply of ink to a recording head from an ink tank.

Abstract: The present disclosure relates to a manufacturing device and a manufacturing method of OLEDs. The manufacturing device includes a sprayer and a moving unit. The sprayer is arranged above a substrate, and the sprayer includes at least one nozzle configured to ejected ink on a surface of the substrate. The moving unit is configured to control the sprayer to relatively move with respect to the substrate. During an ejecting process of the ink, an ejecting speed of the ink injected by the nozzle includes a first speed weight along a horizontal direction with respect to the surface of the substrate, and a relative moving speed between the sprayer and the substrate comprises a second speed weight along the horizontal direction. The first speed weight is opposite to the second speed weight. As such, the ink may fall within a designated area so as to overcome the ink-jet printing error.

Abstract: A platen disposed at a position at which the platen faces a printing head includes a contact portion that comes into contact with a recording medium, a non-contact portion that does not come into contact with the recording medium, and an ink receiving portion that receives ink ejected to beyond the recording medium. A recessed portion is formed between the ink receiving portion and the contact portion in the width direction of the recording medium so as to be lower than the contact portion in the vertical direction. A supply portion that supplies air to the recessed portion is formed upstream of the recessed portion in the conveyance direction of the recording medium.

Abstract: In various embodiments, printing is performed in a print mode with a higher ink flow rate per unit time period in a case where a time period from a time when an ink sucking operation is performed is longer, and printing is performed in a print mode with a lower ink flow rate per unit time period in a case where the time period is shorter.

Abstract: According to one example there is provided a method of adjusting a support structure. The method comprises obtaining a reference orientation of the support structure when the support structure is positioned in a reference position. The height of the support structure is adjusted to a predetermined position and the orientation of the support structure is adjusted such that the orientation of the support structure when in the predetermined position is substantially the same as the reference orientation.

Abstract: A printer including: a print module having a printhead for printing onto media fed along a media feed path and a maintenance module for maintaining the printhead. The maintenance module includes an L-shaped frame having a longer arm extending parallel with a longitudinal axis of the printhead and a shorter arm. The longer arm includes a capper for capping the printhead and the shorter arm includes a wiper for longitudinally wiping the printhead.

Abstract: An inkjet printing apparatus includes: a print bar unit having a print bar, a maintainer, and a movement driver; and a controller. Upon maintenance of an inkjet head of the print bar, the controller is configured to drive the movement driver to move the maintainer from a deployment position to a retreat position with the print bar arranged at a maintenance position above a height position for printing while wiping a nozzle surface of the inkjet head with the wiper of the maintainer being moved. The deployment position is a position under the inkjet head in maintenance of the inkjet head and the retreat position is a position where the maintainer is retreated from the deployment position.

Abstract: Examples are disclosed for tracking a location of an input device. One example provides a display device including a logic machine and a storage machine, the storage machine storing instructions executable by the logic machine to generate, based on position sensor data received from a position sensor of an input device, an estimated location of the input device that is repeatedly updated as further position sensor data is received. The instructions are further executable to determine that the input device is in a home state associated with the display device, determine, with a sensing mechanism of the display device, a home-state location of the input device, reset the estimated location based on the home-state location, such that future updates to the estimated location are based on the reset estimated location, and control the display device based at least on the estimated location of the input device.

Abstract: A printing apparatus includes a discharging head which discharges liquid on a printing medium mounted on an endless belt; a medium transport portion as a transport unit which transports the printing medium; an input device as an input unit to which printing condition is input; and a fluff cutter portion which is provided on an upstream side of the discharging head in the transport direction and which cuts fluff of the printing medium in a predetermined height according to the printing condition.

Abstract: The liquid ejection apparatus with a liquid jetting head and support members is described. A first support member and a second support member support a guide and feeding roller in a scanning direction and are attached to a housing of the liquid ejection apparatus. The housing at the location to which the first support member is attached is easier to deform in the scanning direction than housing at the location to which the second support member is attached. Further, the housing at the first location may include a projection. The first support member may be attached to the projection.