Abstract: A replaceable tri-color ink cartridge, comprising three chambers for different colors ink; a headland having headland slots each fluidically connected to a respective chamber; and a printhead die attached to the headland, the die including (i) nozzle arrays having a length of at least 14.

Abstract: In one example a replaceable tri-color ink cartridge housing includes three chambers for different colors ink. In a further example, a headland may have three parallel ink slots having a length of at least 14.4 millimeters.

Abstract: In one example, a flexible circuit for a fluid cartridge includes a single flexible substrate, an electronic memory on the substrate, an authentication code stored on the memory, first electrical connector pads on the substrate connected to the memory, and second electrical connector pads on the substrate, not connected to the memory, to connect to a fluid dispensing die.

Abstract: Example circuits and methods are described involving a flexible substrate for a fluid cartridge, comprising an integrated circuit connected to the flexible substrate, and electrical connector pads arranged on the flexible substrate for connection to the integrated circuit.

Abstract: Example circuits and methods are described involving a flexible substrate for a fluid cartridge, comprising an integrated circuit connected to the flexible substrate, and electrical connector pads arranged on the flexible substrate for connection to the integrated circuit.

Abstract: A circuit can include a die configured to electronically control particular elements and a flex circuit having copper leads coated with a non-gold corrosion inhibitor, the flex circuit being electrically connected to the die by the copper leads.

Abstract: Example circuits and methods are described involving a flexible substrate for a fluid cartridge, comprising an integrated circuit connected to the flexible substrate, and electrical connector pads arranged on the flexible substrate for connection to the integrated circuit.

Abstract: A circuit can include a die configured to electronically control particular elements and a flex circuit having copper leads coated with a non-gold corrosion inhibitor, the flex circuit being electrically connected to the die by the copper leads.

Abstract: A system for automatically igniting a gas lamp by sensing the presence of a flame according to one embodiment of the present invention may include an igniter, power source, relay, valve controller, pulse-width modulator, and microcontrol unit. The microcontrol unit is connected to the igniter, the power source, the valve controller, the relay, and the pulse-width modulator. The microcontrol unit uses the pulse-width modulator to calibrate a total power supply to the igniter and determines the presence of a flame by sensing an electrical resistance of the igniter to the total power supply. The microcontrol unit also controls the amount of electricity supplied to the igniter through the relay and adjusts the amount of combustible fluid supplied to the igniter through the valve controller to automatically ignite the gas lamp.

Abstract: An improved multi-well control system (MWCS) has a centrally based multi-well controller (MWC) in communication with one or more slave controllers and one or more electronic flow measurement devices (EFMs) for instant data monitoring and control of individual wells. The system also provides for an application host sub-system (AHSS) in communication with the MWC for historical and instant data retention. The system is capable of assigning one or more wells to a group for allocation purposes and organizing groups dependent on production levels of individual wells. The MWC is capable of tracking gas volumes produced by each well independent of groupings and communicating such data to the AHSS. The MWC provides monitoring and tracking data from one or more EFM devices and assigns total flow volume to individual wells. The entire MWCS can result in the reduction of manpower and an increase in overall production efficiency.

Abstract: An improved multi-well control system (MWCS) has a centrally based multi-well controller (MWC) acting as a master controller in communication with one or more slave controllers and one or more electronic flow measurement devices (EFMs) for instant data and control monitoring individual wells. Also providing an application host sub-system in communication with the MWC for historical data retention and instant data for override control and monitoring. The system capable of allocating one or more wells assignable to a group and organization of groups dependent on production levels of individual wells. The MWC capable of tracking gas volumes produced by each well independent of groupings and communicating such data to the automated host sub-system. The MWC providing monitoring and tracking data from one or more EFM devices and assigning total flow volume to individual wells. The entire MWCS resulting in reduction of manpower and increase in overall production efficiency.