Abstract: There is disclosed a fluid container 200 useable with print apparatus. The fluid container comprises a primary module 210 comprising: a primary reservoir 220 to contain print fluid and a regulated chamber 230 to receive the print fluid from the primary reservoir 220. The regulated chamber 203 comprises a regulator unit 232 to actuate a gas control valve 234 to control a flow of relief gas into the fluid container 200 as print fluid is discharged from the fluid container 200. The fluid container comprises a secondary module 250 comprising a secondary reservoir 252 to contain print fluid. The primary reservoir 220 is to receive the print fluid from the secondary reservoir 252 via a re-supply conduit 260 between the secondary reservoir 252 and the primary reservoir 220. The secondary reservoir 252 is to receive the relief gas via the gas control valve 234, and the primary reservoir 220 is to receive the relief gas via the secondary reservoir 252.

Abstract: A print agent vessel is disclosed that comprises a circuit, the circuit comprising a first electrically conductive portion to couple to a first terminal of a printing device, a second electrically conductive portion to couple to a second terminal of the printing device, and an electrically conductive component capacitively coupled to the first electrically conductive portion. The circuit has a variable capacitance that is indicative of a parameter of the component.

Abstract: A print agent vessel is disclosed that comprises a circuit, the circuit comprising a first electrically conductive portion to couple to a first terminal of a printing device, a second electrically conductive portion to couple to a second terminal of the printing device, and an electrically conductive component capacitively coupled to the first electrically conductive portion. The circuit has a variable capacitance that is indicative of a parameter of the component.

Abstract: There is disclosed a fluid container 200 useable with print apparatus. The fluid container comprises a primary module 210 comprising: a primary reservoir 220 to contain print fluid and a regulated chamber 230 to receive the print fluid from the primary reservoir 220. The regulated chamber 203 comprises a regulator unit 232 to actuate a gas control valve 234 to control a flow of relief gas into the fluid container 200 as print fluid is discharged from the fluid container 200. The fluid container comprises a secondary module 250 comprising a secondary reservoir 252 to contain print fluid. The primary reservoir 220 is to receive the print fluid from the secondary reservoir 252 via a re-supply conduit 260 between the secondary reservoir 252 and the primary reservoir 220. The secondary reservoir 252 is to receive the relief gas via the gas control valve 234, and the primary reservoir 220 is to receive the relief gas via the secondary reservoir 252.

Abstract: A replaceable print component is disclosed that comprises first and second electrodes, and a circuit electrically connected between the first and second electrodes to vary an electrical property of the circuit with a frequency component within a selected frequency range to indicate a parameter of a part of the circuit in response to a stimulus.

Abstract: In an example, there is provided a closure device. The closure device comprises an air-permeable and ink-impermeable membrane to prevent ink egress from a refillable ink tank of a printer. The membrane has an ink tank side and an air side. The closure device also comprises a tortuous air flow path connecting the air side of the membrane to an exterior of the ink tank.

Abstract: In an example, there is provided a closure device. The closure device comprises an air-permeable and ink-impermeable membrane to prevent ink egress from a refillable ink tank of a printer. The membrane has an ink tank side and an air side. The closure device also comprises a tortuous air flow path connecting the air side of the membrane to an exterior of the ink tank.

Abstract: Liquid supply or reservoir therefore having multiple compartments, each compartment to hold a distinct liquid, comprising multiple liquid outlets, each fluidically connected to one of the compartments, multiple clearance cut outs disposed at a pitch equal to a pitch of the compartments to accommodate protrusions of a dispenser, and at least one latch protruding outwards from a supply wall.

Abstract: Liquid supply or reservoir therefore having multiple compartments, each compartment to hold a distinct liquid, comprising multiple liquid outlets, each fluidically connected to one of the compartments, multiple clearance cut outs disposed at a pitch equal to a pitch of the compartments to accommodate protrusions of a dispenser, and at least one latch protruding outwards from a supply wall.

Abstract: Liquid supply or reservoir therefore having multiple compartments, each compartment to hold a distinct liquid, comprising multiple liquid outlets, each fluidically connected to one of the compartments, multiple clearance cut outs disposed at a pitch equal to a pitch of the compartments to accommodate protrusions of a dispenser, and at least one latch protruding outwards from a supply wall.

Abstract: Liquid supply or reservoir therefore having multiple compartments, each compartment to hold a distinct liquid, comprising multiple liquid outlets, each fluidically connected to one of the compartments, multiple clearance cut outs disposed at a pitch equal to a pitch of the compartments to accommodate protrusions of a dispenser, and at least one latch protruding outwards from a supply wall.

Abstract: The invention relates to compounds, compositions, and methods for diminishing pain in a subject in need thereof comprising administering the compounds and compositions herein described.

Abstract: A computer network switch includes a receiving module for receiving packets, a packet memory with a plurality of buffer cells with each of the buffer cells having a buffer descriptor. A descriptor free pool lists available buffer descriptors that can be used for new incoming packets. A plurality of transmit queues hold the buffer descriptors. Each of the transmit queues include an input queue, an expansion queue and an output queue. The switch also includes control logic for directing the removing of one of the available buffer descriptors from the free pool and directing one of the packets from the receiving module into one of the buff cells corresponding to the one available buffer descriptor. The control logic places the one buffer descriptor in the input queue of one of the transmit queues. The control logic also monitors a load status of the input and output queues.

Abstract: A technique for encoding index values of asynchronous pointers for a non-power-of-two sized buffer that supports the unit distance property. The technique includes converting N+1 pointer index values corresponding to index locations 0 through N of the buffer from the natural binary-coded decimal format to a unit distance code format such as the gray code, adding a 0 bit in the MSB position of each of the N+1 converted pointer index values, adding a first pointer index value at index location N+1 equal to the pointer index value at index location N except that a 1 bit replaces the 0 bit in the MSB position, and adding a plurality of pointer index values at index locations greater than N+1 but less than or equal to N+n+1 that are equal to the first added pointer index value, where “n” equals the number of bits in each pointer index value prior to conversion.