Abstract: In example implementations, a method is provided. The method may be executed by a processor of a fluid dispensing apparatus. The method includes detecting a pause signal due to a surface load error. Corrective actions are initiated in response to the pause signal. A continue signal is received after the corrective actions are completed and a correct microplate is loaded into the fluid dispensing apparatus. Fluids are then dispensed into wells of the correct microplate.

Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.

Abstract: An integrated cartridge service station may include a reagent module comprising at least one reagent ejection device, and a service module integrated with the reagent module. The service module may include at least one service device. The reagent module and the service module are movable with respect to one another within a reagent dispensing system. The at least one reagent ejection device is movable between an in-line position and an off-line position within the reagent dispensing system.

Abstract: A reagent substrate may include a reagent sample deposition area on which a sample of a reagent is deposited, and a number of diagnostic regions on which a diagnostic sample of the reagent is deposited for verification of deposition of the diagnostic sample. A reagent dispensing system may include a conveyor surface to convey a number of substrates, at least one reagent module located in-line with respect to the conveyor surface where the reagent module includes at least one reagent dispensing device to dispense a reagent on the substrates, and at least one optical sensor to verify the dispensing of the reagent at a number of diagnostic regions of the substrate.

Abstract: Examples disclosed herein relate to a device. Examples include a region selection engine to determine a plurality of regions on a well plate, a number of wells in each region, and a location of each well in each region; and a dispense engine to determine a quantity of DNA concentrate to dispense in each well of the plurality of regions on the well plate, and the dispense engine to control a fluid dispensing device to eject the quantity of DNA concentrate into each well of each region of the well plate. In examples, a quantity of DNA fragments in the DNA concentrate is unknown.

Abstract: A method may include measuring at least one physical parameter of at least one component of a plurality of components of a first fluid ejection die; and calculating an operating energy value to be used to operate the first fluid ejection die based on the at least one physical parameter of the at least one component.

Abstract: Examples disclosed herein relate to a device. Examples include a region selection engine to determine a plurality of regions on a well plate, a number of wells in each region, and a location of each well in each region; and a dispense engine to determine a quantity of DNA concentrate under 1 microliter to dispense in each well of the plurality of regions on the well plate, and the dispense engine to control a fluid dispensing device to eject the quantity of DNA concentrate into each well of each region of the well plate. In examples, a quantity of DNA fragments in the DNA concentrate is unknown.

Abstract: Systems, methods, and computer readable medium to provide patterned layer deposition of liquid types to a plate surface in layers organized in layouts with sites of patterns aligned to a plate origin of the plate surface. At least one layer includes a layout defining a geometric layout of the plate surface.

Abstract: In one example in accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device includes a vertical support and an interface movably coupled to the vertical support. The interface is to receive an ejection head. The fluid ejection device also includes a manual adjustment device associated with the interface to adjust a distance between the interface and a substrate stage.

Abstract: A fluid ejection system, in an example, includes at least one nozzle of at least one die from which a fluid is ejected and at least one nanowell at which the at least one nozzle ejects an amount of fluid. A method of dispensing a fluid, in an example, includes addressing at least one nanowell with at least one nozzle of at least one die, and depositing a fluid in the nanowell with the at least one nozzle.

Abstract: In one example in accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device includes a vertical support and an interface movably coupled to the vertical support. The interface is to receive an ejection head. The fluid ejection device also includes an ionizer coupled to the interface to electrostatically neutralize a substrate.

Abstract: In one example in accordance with the present disclosure, a fluidic ejection system is described. The fluidic ejection system includes a frame to retain a number of fluidic ejection devices. The frame has a form factor to match a titration plate. The fluidic ejection system also includes the number of fluidic ejection devices disposed on the frame. Each fluidic ejection device includes a reservoir disposed on a first side of the frame and a fluidic ejection die disposed on an opposite side of the frame. Each fluidic ejection die includes an array of nozzles, with each nozzle including an ejection chamber, an opening, and a fluid actuator disposed within the ejection chamber.

Abstract: In one example, dispenser stages described herein may include a dispenser platform comprising: a stage coupled to a rail system to move the stage in a first plane and a second plane, an alignment feature coupled to the stage to align a substrate nest coupled to the stage with a dispenser positioned above the stage, and a releasable fastener to couple the substrate nest to the stage.

Abstract: A reagent dispensing system, in an example, may include a processing device, a data storage device coupled to the processing device, a plurality of swappable reagent modules, each swappable reagent module comprising a plurality of reagent dispensing cartridges, and a module frame coupling the reagent cartridges to one another.

Abstract: In example implementations, a method is provided. The method may be executed by a processor of a fluid dispensing apparatus. The method includes storing a correction factor for an unqualified fluid. A request to dispense the unqualified fluid is received. A dispense parameter is adjusted in accordance with the correction factor. Then, the unqualified fluid is dispensed in accordance with the dispense parameter that is adjusted.

Abstract: Examples described herein also provide a substrate conveyance system. The substrate conveyance system may include a conveyor surface to convey a number of substrates, and a number of apertures defined in the conveyor surface between the substrates as positioned on the conveyor surface. The location of the apertures is based on a location at which at least one reagent module dispenses a reagent.

Abstract: A microplate lid is disclosed. An electronics board includes a plurality of board throughholes corresponding to well locations of a microplate. A cover plate includes a plurality of plate throughholes corresponding to respective board throughholes to define a plurality of plate-board throughhole pairs. The cover plate is located atop the electronics board. A plurality of directing lumens is at least partially defined by the cover plate. Each directing lumen corresponds to a respective plate throughhole. A plurality of user-perceptible array indicators is provided to the electronics board. Each array indicator is associated with a different plate-board throughhole pair than every other array indicator.

Abstract: An apparatus includes a pipette dispenser to control dispensing of a volume to a dispensing location. A tip is operatively coupled to the pipette dispenser. The tip includes an electromechanical print head to dispense the volume from the pipette dispenser to the dispensing location based on a command from the pipette dispenser that indicates an amount of the volume to be dispensed from the print head.

Abstract: According to an example, a microfluidic apparatus may include a channel, a foyer, in which the foyer is in fluid communication with the channel and in which the channel has a smaller width than the foyer, a sensor to sense a property of a fluid passing through the channel, a nozzle in fluid communication with the foyer, and an actuator positioned in line with the nozzle. The microfluidic apparatus may also include a controller to determine whether the sensed property of the fluid meets a predetermined condition and to perform a predefined action in response to the sensed property of the fluid meeting the predetermined condition.

Abstract: According to an example, a microfluidic apparatus may include a fluid slot, a foyer in fluid communication with the fluid slot via a channel having a relatively smaller width than the foyer, a sensor to detect a presence of a particle of interest in a fluid passing through the channel, a nozzle in fluid communication with the foyer, and an actuator positioned in line with the nozzle. The microfluidic apparatus may also include a controller to receive information from the sensor, determine, from the received information, whether a particle of interest has passed through the channel, and control the actuator to expel fluid in the foyer through the nozzle based upon the determination.