Abstract: The present subject matter describes a system for ink pumping. In an example implementation, the system comprises a tube having a first end and a second end, a peristaltic pump to pump ink through the tube, a first ink port, and a second ink port. The system includes a first fluid chamber between the first end of the tube and the first ink port. The first fluid chamber is configured to hold the ink entering and exiting the tube through the first end to dampen flow of the pumped ink. The system also includes a second fluid chamber between the second end of the tube and the second ink port. The second fluid chamber is configured to hold the ink entering and exiting the tube through the second end to dampen flow of the pumped ink.

Abstract: The present subject matter describes a system for pumping ink. In an example implementation, the system includes a piston assembly having a lower chamber and an upper chamber. The lower chamber has an inlet port to receive ink. The upper chamber has a passage to receive ink from the lower chamber and an outlet port to dispense ink. The upper chamber is enclosed by a bellow. An actuating member is engaged with the piston assembly. The actuating member is configured to linearly move the piston assembly. The piston assembly is configured to compress and relax the bellow by the linear movement to pump ink from the lower chamber to the upper chamber and from the upper chamber to the outlet port.

Abstract: The present subject matter describes a system for ink pumping. In an example implementation, the system comprises a tube having a first end and a second end, a peristaltic pump to pump ink through the tube, a first ink port, and a second ink port. The system includes a first fluid chamber between the first end of the tube and the first ink port. The first fluid chamber is configured to hold the ink entering and exiting the tube through the first end to dampen flow of the pumped ink. The system also includes a second fluid chamber between the second end of the tube and the second ink port. The second fluid chamber is configured to hold the ink entering and exiting the tube through the second end to dampen flow of the pumped ink.

Abstract: The present subject matter describes a system for pumping ink. In an example implementation, the system includes a piston assembly having a lower chamber and an upper chamber. The lower chamber has an inlet port to receive ink. The upper chamber has a passage to receive ink from the lower chamber and an outlet port to dispense ink. The upper chamber is enclosed by a bellow. An actuating member is engaged with the piston assembly. The actuating member is configured to linearly move the piston assembly. The piston assembly is configured to compress and relax the bellow by the linear movement to pump ink from the lower chamber to the upper chamber and from the upper chamber to the outlet port.

Abstract: A printer and a method for delivering ink in the printer are disclosed. The printer, comprising an ink supply station (ISS) having a first pump and an ink tank coupled to the ISS, wherein the ink tank comprises a first inflatable bag; a print head having an off-axis ink supply unit and a second pump coupled to the print head, wherein the off-axis ink supply unit comprises a second inflatable bag; and a connection unit which connects the ISS to the off-axis ink supply unit.

Abstract: A printer and a method for delivering ink in the printer are disclosed. The printer, comprising an ink supply station (ISS) having a first pump and an ink tank coupled to the ISS, wherein the ink tank comprises a first inflatable bag; a print head having an off-axis ink supply unit and a second pump coupled to the print head, wherein the off-axis ink supply unit comprises a second inflatable bag; and a connection unit which connects the ISS to the off-axis ink supply unit.

Abstract: An air priming system is described that can prime printer fluid of one or more printer fluid tanks of a printer. The air priming system includes multiple priming units that are coupled together so as to be rotated or otherwise adjusted together to be paced into one of a plurality of priming stages. In each of the plurality of priming stages, air flow is either allowed or blocked through specific priming units.

Abstract: In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.

Abstract: In a method for compensating for media linefeed errors in a media feed apparatus, a first correction parameter is applied during a first length of a media feed operation and a second correction parameter, which differs from the first correction parameter, is applied during a second length of the media feed operation.