An image forming apparatus includes a moving unit and a lifting and lowering mechanism. The moving unit is supported by a casing in an upwardly and downwardly moving manner. A fixed pully and a winding pully are provided in the casing. A movable pulley is provided in the moving unit. A wire is configured to be wound around the fixed pulley and the movable pulley. One end of the wire is fixed to the casing and the other end of the wire is fixed to the winding pulley. A rack is provided in the casing along an upper-and-lower direction. A pinion is provided in the moving unit and configured to be engaged with the rack. The winding pulley is rotated to wind and unwind the wire via the fixed pulley and the movable pulley, and the moving unit is lifted and lowered while the pinion being engaged with the rack.

Provided herein is a printer comprising a printing assembly. The printing assembly comprises a printhead bracket fixedly attached to the printer, a printhead that defines a groove, the printhead aligned at a first alignment, an alignment adjuster fastened between the printhead bracket and the printhead, and a plurality of fasteners operatively engaged with the alignment adjuster. The alignment adjuster comprises a gear rack that is adjacent to the printhead bracket, and a protrusion that is received by the groove of the printhead. The plurality of fasteners comprises at least one selected from a group of a lateral adjustment fastener operatively engaged with the gear rack, and a rotational adjustment fastener operatively engaged with a transverse edge of the printhead. The lateral adjustment fastener is configured to provide lateral movement to the alignment adjuster and the printhead. The rotational adjustment fastener is configured to provide rotational movement to the printhead.

An image forming apparatus includes a conveyer belt that transports sheets, a platen plate that supports the conveyer belt to be slidable, a head holding unit that holds inkjet heads ejecting ink to sheets transported on the conveyer belt and being arrayed in a direction orthogonal to a transport direction of the conveyer belt, and a pair of gap adjustment units that have ends on one side being respectively attached to both ends of a lower surface of the head holding unit and ends on the other side being attached to an upper surface of the platen plate to adjust a gap between the lower surface of the head holding unit and the upper surface of the platen plate.

An inkjet printer is described. The inkjet printer has a substrate holder assembly that includes a base member having a long axis in a first direction and a short axis in a second direction perpendicular to the first direction; a contact member coupled to the base member, the contact member having a long axis in the first direction and a short axis in the second direction; a holder carriage coupled to the base member; a linear extender coupled between the base member and the contact member and extending in a third direction intersecting with the first direction and the second direction from the base member toward the contact member; and a flex member coupled to the base member, extending in the second direction between the linear extender and the contact member, and having a flex direction in a direction perpendicular to the first direction and the second direction.

Provided is a printing apparatus capable of reducing degradation of print quality. To this end, a chassis that guides movement of a carriage in an X-direction and a bridging member that connects the upper surface of a first sidewall and the upper surface of the chassis engage with and are positioned at a base and secured to the base with fastening members.

There is provided a printing apparatus, including: a base; a thermal head including heating elements arranged in a first direction; a first engagement member; a second engagement member configured to engage with the first engagement member such that the thermal head pivotally moves, relative to the base, around a first axis extending in a second direction intersecting with the first direction; a head holding member being slidable with respect to the base in a third direction intersecting with the first direction and the second direction and holding the thermal head such that the heating elements face the third direction; a first magnetic member positioned on a first side in the first direction relative to the first engagement member; a second magnetic member positioned on the first side in the first direction relative to the second engagement member; and a head pressing member facing the head holding member from a first side in the third direction.

A printing system includes a printhead carriage supporting a printhead and mounted to translate along a beam extending in an x-axis direction of an x-axis, y-axis, z-axis Cartesian coordinate system. A method of controlling the printing system includes sensing one or more of a rotational orientation of the printhead about the x-axis, y-axis, and the z-axis and a position of the printhead along the y-axis and z-axis. Based on the sensed one or more of the rotational orientation and the position, a position of one or more bearings arranged to support the printhead carriage on the beam is adjusted. Adjusting the position of the one or more bearings adjusts one or both of the rotational orientation of the printhead and the position of the printhead. Systems and methods relate to control of printing systems.

An example printing apparatus is illustrated. The printing apparatus includes a print engine assembly. The print engine assembly further includes a bottom chassis portion. The print engine assembly also includes a top chassis portion. The print engine assembly also includes a print head positioned within the top chassis portion. The print engine assembly also includes a plurality of offset pins coupled to the print head, where the plurality of offset pins abuts the bottom chassis portion, and where the plurality of offset pins enables the print head to be positioned at a predetermined distance from the bottom chassis portion.

An image forming method is provided that includes discharging, from a liquid discharged head, a white ink onto a recording medium to form a first layer having a first width, and a color ink onto the first layer to form a second layer having a second width. When the second width is equal to or smaller than a threshold, the first width is equal to the second width, and when the second width is larger than the threshold, the first width is smaller than the second width.

In a state where a distance from an ejection port surface of an ejection head to a predetermined position corresponds to a first distance, a period detection unit detects a first period from when ejection of a droplet from an ejection port is started until when a droplet detection unit detects the droplet, and in a state where the distance from the ejection port surface of the ejection head to the predetermined position is changed to a second distance by a change unit, the period detection unit detects a second period from when ejection of a droplet from the ejection port is started until when the droplet detection unit detects the droplet, the second distance being different from the first distance. A calculation unit calculates an ejection speed of the droplet, based on the first distance, the second distance, the first period, and the second period.