Abstract: Described is an assembly of a guiding structure and a print head carriage, the print head carriage comprising a base carriage controllably movable relative to the guiding structure along a first horizontal axis, the print head carriage comprising a sub-carriage controllably movable relative to the base carriage along a second horizontal axis. The print head carriage comprises an intermediate carriage controllably movable relative to the base carriage along a vertical axis, the sub-carriage mounted on the intermediate carriage for moving together with the intermediate carriage relative to the base carriage, the sub-carriage controllably movable relative to the intermediate carriage along the second horizontal axis.

Abstract: Described is an assembly of a guiding structure and a print head carriage, the print head carriage comprising a base carriage controllably movable relative to the guiding structure along a first horizontal axis, the print head carriage comprising a sub-carriage controllably movable relative to the base carriage along a second horizontal axis. The print head carriage comprises an intermediate carriage controllably movable relative to the base carriage along a vertical axis, the sub-carriage mounted on the intermediate carriage for moving together with the intermediate carriage relative to the base carriage, the sub-carriage controllably movable relative to the intermediate carriage along the second horizontal axis.

Abstract: A sheet handling apparatus for a printing system includes a rotary drum having an inner chamber circumferentially surrounded by an outer peripheral wall with perforations formed therein. By means of sucking an air flow through the perforations of the drum to a suction system, sheets are attracted to the peripheral wall of the drum. A stationary shutter member is positioned inside the inner chamber for blocking the flow of air through the perforations when they pass, with the rotation of the drum, through a first predetermined angular range. The shutter member includes protrusions while the rotary drum includes recesses for receiving the protrusions, such that a meandering air flow passage is formed between the shutter member and the rotary drum. As such, friction between the rotary drum and the stationary shutter member is reduced, thereby reducing the power consumption of the suction system.

Abstract: A sheet handling apparatus for a printing system includes a rotary drum having an inner chamber circumferentially surrounded by an outer peripheral wall with perforations formed therein. By means of sucking an air flow through the perforations of the drum to a suction system, sheets are attracted to the peripheral wall of the drum. A stationary shutter member is positioned inside the inner chamber for blocking the flow of air through the perforations when they pass, with the rotation of the drum, through a first predetermined angular range. The shutter member includes protrusions while the rotary drum includes recesses for receiving the protrusions, such that a meandering air flow passage is formed between the shutter member and the rotary drum. As such, friction between the rotary drum and the stationary shutter member is reduced, thereby reducing the power consumption of the suction system.

Abstract: A printhead carriage including a body that is guided and driven for reciprocating movement in a printer, a mounting plate for a printhead assembly, and a suspension structure adjustably connecting the mounting plate to the body, the suspension structure having a framework of hinge plates having elastic hinges and at least one adjusting mechanism adapted to adjust the position of the mounting plate by elastically deflecting at least one of the hinges. An adjusting unit which provides for at least one degree of freedom of the mounting plate and includes two hinge plates that are connected to a common support point of the mounting plate and are oriented at right angles relative to one another, and the adjusting mechanism is adapted to push and/or pull one hinge plate in the longitudinal direction thereof, with the elastic deflection of at least one hinge of the other hinge plate.

Abstract: A printer containing a printhead that is detachably mounted on a support plate and is held thereon at two rigid support points located on a first side of the printhead and one elastic support point located on a second side of the printhead opposite to said first side, each of the support points being defined by a first portion on the side of the printhead and a second portion on the side of the support plate, and one of the first and second portions is a spherical surface engaged in a recess of the other of the first and second portions in a self-centering manner wherein the second part of the elastic support point has its spherical surface formed by a bead or ball fixed on a wire, said wire being elastically biased toward the recess, so that the elastic support point releasably biases the printhead towards said first side of the printhead and released by lifting the wire, for detaching the printhead.

Abstract: A system for adjusting the angular orientation in a first plane of a plurality of print head cartridges or groups of cartridges arranged adjacent to each other on a carriage which can be reciprocated in a Y-direction, wherein each of said cartridges or group of cartridges is mounted on said carriage to be tiltable in said first vertical plane, wherein for each of said cartridges or groups of cartridges said carriage is provided with first adjustors for adjusting the angular orientation of the respective cartridge or group of cartridges, said system being provided with second adjustors arranged remote from said carriage for adjusting said angular orientation of said cartridge or group of cartridges, said second adjustors selectively, operatively communicating with said first adjustors of a selected one of said cartridges or group of cartridges.

Abstract: A printing device containing print heads supported on a print carriage assembly wherein the print heads are attached to print head holders which are adapted to be placed on the print carriage assembly at predetermined positions ensuring alignment and accurate positioning of the respective print heads, particularly in the sub scanning direction. Also disclosed is a method for mounting a print head holder on a print carriage assembly.

Abstract: An arrangement for guiding a printhead fixed on a carriage, said carriage provided with plain bearings which are in sliding contact with a set of substantially parallel guide rods, wherein a first plain bearing is in contact with a first guide rod and a second plain bearing is in contact with a second guide rod, the second plain bearing being movably fixed to the carriage by means of a resilient element, wherein he resilient element allows substantially no movement of the second plain bearing with respect to the carriage in a direction parallel to the guide rods.

Abstract: A system for adjusting the angular orientation in a first plane of a plurality of print head cartridges or groups of cartridges arranged adjacent to each other on a carriage which can be reciprocated in a Y-direction, wherein each of said cartridges or group of cartridges is mounted on said carriage to be tiltable in said first vertical plane, wherein for each of said cartridges or groups of cartridges said carriage is provided with first adjustors for adjusting the angular orientation of the respective cartridge or group of cartridges, said system being provided with second adjustors arranged remote from said carriage for adjusting said angular orientation of said cartridge or group of cartridges, said second adjustors selectively, operatively communicating with said first adjustors of a selected one of said cartridges or group of cartridges.

Abstract: A printing device containing print heads supported on a print carriage assembly wherein the print heads are attached to print head holders which are adapted to be placed on the print carriage assembly at predetermined positions ensuring alignment and accurate positioning of the respective print heads, particularly in the sub scanning direction. Also disclosed is a method for mounting a print head holder on a print carriage assembly.

Abstract: The present invention relates to an arrangement for guiding a printhead fixed on a carriage, said carriage provided with plain bearings which are in sliding contact with a set of substantially parallel guide rods, wherein a first plain bearing is in contact with a first guide rod and a second plain bearing is in contact with a second guide rod, the second plain bearing being movably fixed to the carriage by means of a resilient element, wherein the resilient element allows substantially no movement of the second plain bearing with respect to the carriage in a direction parallel to the guide rods.