An image forming apparatus includes a head unit, a conveyance unit, a lifting and lowering mechanism, a drive source and a transmission mechanism. The head unit is provided with an inkjet head having a discharge opening through which an ink is discharged. The conveyance unit is supported in an upwardly and downwardly movable manner in directions close to and apart from the head unit from a lower side. The lifting and lowering mechanism is configured to lift and lower the conveyance unit. The drive source is configured to drive the lifting and lowering mechanism. The transmission mechanism is configured to transmit driving force from the drive source to the lifting and lowering mechanism. The transmission mechanism includes a warm gear, a warm wheel meshed with the warm gear and a resistance applying member configured to apply resistance to rotation of the warm gear.

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.

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.

A printing apparatus capable of performing jam processing includes a movable platen. For this purpose, once support of a platen supporting member is released, the platen will automatically turn to a predetermined angle.

A printing apparatus capable of performing jam processing includes a movable platen. For this purpose, once support of a platen supporting member is released, the platen will automatically turn to a predetermined angle.

Provided is a printing apparatus including a support portion configured to support a medium, a printing unit configured to carry out printing onto the medium supported by the support portion, a support portion moving unit configured to move at least a part of the support portion in a facing direction in which the support portion and the printing unit face each other to change a support position of the medium in the facing direction, a detected unit having position information in the facing direction, the detected unit being configured to move in the facing direction together with the support portion, a detector configured to detect the position information, and a control unit configured to detect a position of the support portion in the facing direction, based on the position information detected by the detector.

Provided is a photo printer including: a paper supply unit for accommodating stacked sheets of paper and having a pickup roller protruding from a bottom surface thereof; a platen roller provided at a front end of the paper supply unit; a head provided above the platen roller so as to form an image on the paper fed; a motor for providing a driving force to the platen roller; deceleration gears for decreasing revolutions per minute of the motor; a gear plate provided at one side of the paper supply unit and having the deceleration gears shaft-coupled thereto; and a motor plate having an aligning hole adapted to pass the shaft of the deceleration gear therethrough and a motor hole adapted to pass a rotary shaft of the motor therethrough.

In some examples, velocity and torque based media motor control may include ascertaining a velocity and torque for a feed roller motor associated with a feed roller, and ascertaining a velocity and torque for a drive roller motor associated with a drive roller that is to receive media from the feed roller. Further, velocity and torque based media motor control may include determining whether the torque for the drive roller motor is greater than a torque target. In response to a determination that the torque for the drive roller motor is greater than the torque target, the torque for the drive roller motor may be reduced to the torque target, and the torque for the drive roller motor may be maintained at the torque target.

In some examples, velocity and torque based media motor control may include ascertaining a velocity and torque for a feed roller motor associated with a feed roller, and ascertaining a velocity and torque for a drive roller motor associated with a drive roller that is to receive media from the feed roller. Further, velocity and torque based media motor control may include determining whether the torque for the drive roller motor is greater than a torque target. In response to a determination that the torque for the drive roller motor is greater than the torque target, the torque for the drive roller motor may be reduced to the torque target, and the torque for the drive roller motor may be maintained at the torque target.

A modular print drive assembly and platen assembly are provided. The modular print drive assembly is structured for insertion and removal from a printer, the modular print drive assembly and includes a print drive housing defining a plurality of printer mount fasteners, a printhead coupled to and supported by the print drive housing, a platen latch assembly coupled to and supported by the print drive housing. The platen latch assembly is structured to removably receive a platen in position to define a nip between the platen and the printhead The modular print drive also includes a platen drive motor coupled to and supported by the print housing, wherein the platen drive motor is supported by the print housing in position to drive the platen upon receipt within the platen latch assembly.