A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain. Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

A liquid ejecting apparatus includes a liquid ejecting head, a holding member holding the liquid ejecting head, a fixing member including a head portion, an engaging portion, and a shaft portion that couples the head portion to the engaging portion, and an elastic member including a first opening into which the shaft portion is inserted. One of the liquid ejecting head and the holding member includes a second opening into which the shaft portion is inserted, and the other one of the liquid ejecting head and the holding member includes a first engaged portion to be engaged with the engaging portion. The liquid ejecting head is fixed to the holding member by the engaging portion being brought into engagement with the first engaged portion such that the first opening and the second opening are disposed between the head portion and the engaging portion.

A liquid ejecting apparatus includes a liquid ejecting head, a holding member holding the liquid ejecting head, a fixing member including a head portion, an engaging portion, and a shaft portion that couples the head portion to the engaging portion, and an elastic member including a first opening into which the shaft portion is inserted. One of the liquid ejecting head and the holding member includes a second opening into which the shaft portion is inserted, and the other one of the liquid ejecting head and the holding member includes a first engaged portion to be engaged with the engaging portion. The liquid ejecting head is fixed to the holding member by the engaging portion being brought into engagement with the first engaged portion such that the first opening and the second opening are disposed between the head portion and the engaging portion.

A printing apparatus includes a support member having a bearing portion, and includes a locking member including a shaft portion fitted to the bearing portion and a biasing member arranged to bias the support member and the locking member in a first direction. The support member supports a printing member that prints on a printing medium. The locking member is pivotally mounted to the support member. The shaft portion is a pivot center. The locking member fixedly holds the printing member relative to the support member. The first direction forms an angle from 0 degree to smaller than 45 degrees relative to an upper surface of the printing member in a first state in which the printing member is fixedly held relative to the support member by the locking member. Movement of the shaft portion fitted to the bearing portion in the first direction is restricted by the biasing member.

A holder assembly that holds a head module including an inkjet head on a mounting table, the holder assembly including a pressure member and an operation member. The pressure member presses a portion of the head module adjacent to the mounting table. The operation member transitions the pressure member from a first state to a second state when work of mounting the head module on the mounting table is performed. In the first state, the pressing by the pressure member is deactivated, and in the second state, the pressing by the pressure member is activated. The operation member exists outside an enveloping surface of the head module during the work of mounting the head module on the mounting table.

A liquid jet device includes a head body configured to jet droplets from a nozzle, a frame at which the head body is positioned, a grounding portion configured to contact a first side surface of the head body in a removal direction from the frame to electrically couple the head body to the frame, and a first pin serving as a pin for positioning the head body with respect to the frame, wherein a contact position between the first side surface and the grounding portion and a position of the first pin overlap in a normal direction of the first side surface.

Disclosed is a label printer, having a first receiver for a printhead; at least two mutually different printhead units, each configured as a replaceable module and that each have a printhead, wherein one of the two printhead units is selectively received by the first receiver in an assembled state; a second receiver for a guide unit for the carrier tape having a counter-element to the printhead that is configured to hold the carrier tape with the labels in contact with the printhead; and at least two mutually different guide units for the carrier tape, each configured as a replaceable module and that each have a counter-element to the printhead that is configured to hold the carrier tape with the labels in contact with the printhead, wherein one of the two guide units for the carrier tape is selectively received by the second receiver in the assembled state.

Disclosed is a label printer, having a printhead and a counter-element to the printhead, wherein a carrier tape is led between the printhead and the counter-element; a drive mechanism for the carrier tape having a driven carrier tape drawing roller; and at least one non-driven carrier tape pressure roller that is associated with the carrier tape drawing roller, wherein, the carrier tape drawing roller and the respective carrier tape pressure roller are arranged after the printhead and the counter-element, wherein the drive mechanism for the carrier tape comprises a further driven carrier tape drawing roller and a further non-driven carrier tape pressure roller associated with the further carrier tape drawing roller is provided, with the further carrier tape drawing roller and the further carrier tape pressure roller, arranged in front of the printhead and the counter-element.

A printer is provided with a mounting portion and an arm. A head is mounted on the mounting portion. The head discharges a liquid. The arm can move between a fixed position and a released position. In the fixed position, the arm fixes the head mounted on the mounting portion to the mounting portion in a first direction, a second direction, and a third direction. In the released state, the arm unfixes the head from the mounting portion.

A method of installing a printhead in a print module includes the steps of: positioning the printhead in a nest of the print module; moving first and second ink couplings towards the nest and into engagement with complementary first and second ink ports positioned at opposite ends of the printhead; and moving a depressor towards the nest and into urging engagement with a portion of the printhead positioned between the first and second ink ports. The first ink coupling, the second ink coupling and the depressor are moved simultaneously, linearly and parallel to each other, thereby to datum the printhead against the nest.