Abstract: In an example, a method comprises: directing a sensing beam towards a reflective component of a print apparatus in a direction; detecting a reflected portion of the sensing beam at a detector comprising a two-dimensional sensing region; obtaining an indication of a location of the reflected portion of the sensing beam incident on the two-dimensional sensing region; and determining an orientation of the reflective component based on a correspondence between the location of the portion of the sensing beam on the two-dimensional sensing region and the direction of the sensing beam reflected by the component according to its orientation.

Abstract: A wiper holder comprises a body part and a first slot formed in the body part, the first slot for holding a first wiper element, where the first slot is bent to form-lock the first wiper element, and a second slot formed in the body part adjacent to the first slot, the second slot for holding a second wiper element, where the second slot is bent to form-lock the second wiper element.

Abstract: A wiper holder comprises a body part and a first slot formed in the body part, the first slot for holding a first wiper element, wherein the first slot is bent to form-lock the first wiper element, and a second slot formed in the body part adjacent to the first slot, the second slot for holding a second wiper element, wherein the second slot is bent to form-lock the second wiper element.

Abstract: A press cage includes first and second wall plates, the first wall plate being orthogonal with respect to the second wall plate, the first wall plate including a machined indentation located on a face of the first wall plate, and the second wall plate including a machined indentation located on a face of the second wall plate, the machined indentations of the first and second wall plates being adjacent to one another. A coupler assembly includes coupler parts that are locked together, a first coupler part of the coupler parts fixed to the machined indentation of the first wall plate, and a second coupler part of the coupler parts fixed to the machined indentation of the second wall plate.

Abstract: A device and method for measuring an optical characteristic of a fluid. The device, typically a densitometer includes a set of optical elements that include a light source, a collimating lens, a focusing lens, and a receiver, wherein a gap exists between the collimating lens and the focusing lens so as to allow the fluid to pass in between the lenses, and wherein at least one of the optical elements is tilted with respect to an optical axis.

Abstract: A device and method for measuring an optical characteristic of a fluid. The device, typically a densitometer includes a set of optical elements that include a light source, a collimating lens, a focusing lens, and a receiver, wherein a gap exists between the collimating lens and the focusing lens so as to allow the fluid to pass in between the lenses, and wherein at least one of the optical elements is tilted with respect to an optical axis.

Abstract: A device, system and method to measure an optical characteristic of a fluid, the device including a plurality of components consecutively arranged and coupled together via quasi kinematic or kinematic coupling. The consecutively arranged components define a void within the device. The void encloses a measuring set-up for measuring at least one optical characteristic of a fluid passing through a gap. The gap is located at an intersection between an optical path of the measuring set-up and a flow path of the fluid.

Abstract: A press cage may include pairs of opposing wall plates, each of the pairs of wall plates being orthogonal with respect to the other pairs, with corresponding machined indentations located at predetermined locations on broad faces of the wall plates which are adjacent to each other. The press cage may also include coupler assemblies made of coupler parts, each of the parts fixed to machined indentation of the corresponding machined indentations at one of the predetermined locations, the coupler parts locked together.

Abstract: A system for stabilizing two antennas on a mobile platform, the antennas including a first antenna associated with a first geo-stationary satellite and a second antenna associated with a second geo-stationary satellite, the system comprising an upper alignment system and a lower alignment system. The upper alignment system is configured for being a common support for the antennas. The upper alignment system has an intermediate element. The upper alignment system is configured for pointing the antennas relative to the intermediate element, such that the angular displacement between the antennas is matched with the angular displacement between the satellites. The lower alignment system is connected to the upper alignment system and the mobile platform. The lower alignment system is configured for maintaining the orientation of the intermediate element in order to compensate for rotation of the mobile platform, such that the antennas are maintained pointing toward their respective satellites.

Abstract: A system for stabilizing two antennas on a mobile platform, the antennas including a first antenna associated with a first geo-stationary satellite and a second antenna associated with a second geo-stationary satellite, the system comprising an upper alignment system and a lower alignment system. The upper alignment system is configured for being a common support for the antennas. The upper alignment system has an intermediate element. The upper alignment system is configured for pointing the antennas relative to the intermediate element, such that the angular displacement between the antennas is matched with the angular displacement between the satellites. The lower alignment system is connected to the upper alignment system and the mobile platform. The lower alignment system is configured for maintaining the orientation of the intermediate element in order to compensate for rotation of the mobile platform, such that the antennas are maintained pointing toward their respective satellites.

Abstract: Apparatus for registering a copy sheet prior to feeding the sheet to the image-transfer station of an electrophotographic copier. Opposing pairs of relatively rigid feed rollers are arranged on shafts in alternating relationship with opposing pairs of relatively compliant feed rollers, which are of somewhat larger diameter than the rigid rollers so as to form nips of appreciably greater extent in the direction of feed. Registration gates mounted for rotation on one of the roller shafts through slipping couplings are selectively restrained against rotation with the roller shaft either in a non-blocking position out of the feed path or in a blocking position within the nip area of the compliant rollers but upstream of the nip area of the rigid rollers.

Abstract: Apparatus for registering a copy sheet prior to feeding the sheet to the image-transfer station of an electrophotographic copier. Opposing pairs of relatively rigid feed rollers are arranged on shafts in alternating relationship with opposing pairs of relatively compliant feed rollers, which are of somewhat larger diameter than the rigid rollers so as to form nips of appreciably greater extent in the direction of feed. Registration gates mounted for rotation on one of the roller shafts through slipping couplings are selectively restrained against rotation with the roller shaft either in a non-blocking position out of the feed path or in a blocking position within the nip area of the compliant rollers but upstream of the nip area of the rigid rollers.