Abstract:
In some examples, an apparatus can include a valve body including a valve body print substance channel and a valve body air channel, a valve socket shaped to receive the valve body, where the valve socket includes a valve socket print substance channel and a valve socket air channel, where the valve body is in a closed position such that the valve body print substance channel and the valve socket print substance channel are misaligned, and the valve body air channel and the valve socket air channel are misaligned.
Abstract:
A wiping assembly for a fluid ejection device includes a sled slidably movable relative to the fluid ejection device. The wiping assembly further includes a length of wiping material. An indicator slidably coupled to the wiping assembly is included. The indicator changes position relative to the wiping assembly and restricts movement of the wiping assembly to an initial position to indicate a level of usage of the wiping material.
Abstract:
An image forming apparatus includes a substrate receiving member, a fluid applicator unit, and an air recirculator assembly. The substrate receiving member may selectively receive a substrate. The fluid applicator unit may selectively eject a first set of drops to the substrate received by the substrate receiving member in a print mode and a second set of drops in a maintenance mode. The air recirculater assembly may direct air to form an air barrier across the print zone to redirect at least one of aerosol and particulates from crossing through the air barrier and onto the substrate, to filter the at least one of the aerosol and particulates to form filtered air, and to form the air barrier with the filtered air.
Abstract:
In some examples, an apparatus can include a supply reservoir including print substance, and a rotary valve having a central rotary axis, where the central rotary axis is perpendicular to a height of the supply reservoir, where the rotary valve is in a closed position such that the print substance is unable to be supplied from the supply reservoir.
Abstract:
An example of apparatus including an attachment assembly to mate a liquid supply with a reservoir is provided. The apparatus includes an outlet port disposed on the attachment assembly, wherein the outlet port is to dispense liquid from the liquid supply to a receiving port of the reservoir. The apparatus includes a main vent port disposed on the attachment assembly, wherein the main vent port is to receive air from the reservoir as the liquid enters the reservoir. The apparatus includes a plug disposed on the attachment assembly, wherein the plug is to seal a secondary vent when the attachment assembly is mated with the reservoir, and wherein the plug is to break a seal with the secondary vent prior to detachment of the attachment assembly to recover the liquid from the attachment assembly.
Abstract:
A gear arrangement for a printer includes a rack and a pinion. The rack has a first end, a first tooth at the first end, and a second tooth adjacent the first tooth, with a width of the first tooth being greater than a width of the second tooth, and the pinion has a first tooth, a second tooth adjacent the first tooth, and a web between the first tooth and the second tooth, with the web to prevent engagement of the first tooth of the rack between the first tooth and the second tooth of the pinion.
Abstract:
An image forming apparatus includes a substrate receiving member, a fluid applicator unit, and an air recirculator assembly. The substrate receiving member may selectively receive a substrate. The fluid applicator unit may selectively eject a first set of drops to the substrate received by the substrate receiving member in a print mode and a second set of drops in a maintenance mode. The air recirculater assembly may direct air to form an air barrier across the print zone to redirect at least one of aerosol and particulates from crossing through the air barrier and onto the substrate, to filter the at least one of the aerosol and particulates to form filtered air, and to form the air barrier with the filtered air.
Abstract:
A wiping assembly includes an endless belt and a plurality of rollers about which the belt is mounted. A first roller mounts a first end of the belt adjacent a first end of a belt zone while a second roller is adjacent at an opposite, second end of the belt zone. A third roller mounts a second end of the belt and is located at an intermediate position along a first orientation between the respective first and second ends of the belt zone. The third roller is translatable along the first orientation while the first roller and the second roller are non-translatable along the first orientation. The third roller is biased toward the first end of the belt zone to apply tension on the belt.
Abstract:
A wiping assembly includes a pair of guide elements located at opposite ends of a headland region of a fluid ejection assembly to extend in a second orientation generally perpendicular to a first orientation through which the opposite ends extend. Each guide element includes at least one first portion and a second portion. The at least one first portion selectively receives biased releasable engagement from a non-wiping portion of a wiping element extending along the first orientation to cause a wiping portion of the wiping element to be in generally parallel relation to, and spaced apart from, the headland region. The second portion causes the non-wiping portion to no longer be in biased releasable engagement against the guide element and causes the wiping portion to be biased in wiping relation against the headland region.