A drawing device for drawing an object on a workpiece using a pen includes a holder, a movement portion to move the holder, a rotation portion to rotate the holder, and a memory storing, for each of a plurality of line segments configuring the object, drawing data relating to a position and a length of the line segment, and angle data relating to a rotation angle of the holder. The drawing device acquires the drawing data and the angle data of a preceding line segment from the memory, rotates the rotation portion in accordance with the angle data, and draws the object by controlling the movement portion in accordance with the drawing data. The drawing device acquires the drawing data and the angle data of a subsequent line segment continuously subsequent to the preceding line segment, rotates, and draws the object in the same manner as the preceding line segment.

Systems and methods are disclosed directed toward the inscription of handwritten notes. The embodiments of the present disclosure enable autonomous or semi-autonomous drafting of words, symbols, letters, or signs on sheets of paper or other material using a pen plotter mechanically coupled with a writing instrument.

According to at least one embodiment, a mobile printer includes a casing, a sensor, a print head, an interface, a controller, and a decolorizing device. The casing includes a power supply. The sensor detects the movement of the casing. The print head discharges ink containing a thermochromic colorant. The interface acquires image data. The controller discharges the ink from the print head based on the image data acquired by the interface and the movement of the casing detected by the sensor. The decolorizing device is coupled to the casing and includes a translucent film in which heat is generated by an applied voltage and a translucent substrate that is heated to a temperature at which the thermochromic colorant is decolorized by the heat generated in the translucent film.

According to at least one embodiment, a mobile printer includes a casing, a sensor, a print head, an interface, a controller, and a decolorizing device. The casing includes a power supply. The sensor detects the movement of the casing. The print head discharges ink containing a thermochromic colorant. The interface acquires image data. The controller discharges the ink from the print head based on the image data acquired by the interface and the movement of the casing detected by the sensor. The decolorizing device is coupled to the casing and includes a translucent film in which heat is generated by an applied voltage and a translucent substrate that is heated to a temperature at which the thermochromic colorant is decolorized by the heat generated in the translucent film.

A decolorizing apparatus includes a translucent heater, a casing, and a controller. The translucent heater is configured to generate heat according to an applied voltage. The casing is configured to support the translucent heater. The controller is configured to apply a voltage to the translucent heater. The voltage is associated with a temperature at which a thermochromic colorant.

A plotter includes a mounting portion, a first movement mechanism, a second movement mechanism, a processor, and a memory. The mounting portion is configured to mount with a pen containing a liquid. The first movement mechanism is configured to relatively move the mounting portion and a workpiece in a movement direction. The second movement mechanism configured to relatively move the mounting portion and the workpiece in a direction intersecting the movement direction. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include acquiring plot data, acquiring information relating to a remaining amount of the liquid of the pen, setting a relative movement speed of the mounting portion and the workpiece, and controlling the first movement mechanism and the second movement mechanism at the set movement speed, and performing drawing on the workpiece.

A vertical plotter has a writing head movable on a writing surface and comprises a gripping element for releasably locking an ink writing stylus instrument, an actuator configured to move the gripping element in a retracted position in which the writing instrument is spaced from the writing surface and an advanced position in which the writing instrument contacts the writing surface, a control unit (ECU) configured to control the actuator so as to draw one or more lines on the writing surface when the writing head moves. The plotter further comprises a closing device for the writing instrument movably selectively between an open position in which the gripping element is in the advanced position so that a writing tip (P) touches the surface writing outside the writing head and in a closed position in which the gripping element is in the retracted position and a cavity is closed.

A plotter includes a mounting portion, a first movement mechanism, a second movement mechanism, a processor, and a memory. The mounting portion is configured to mount with a pen containing a liquid. The first movement mechanism is configured to relatively move the mounting portion and a workpiece in a movement direction. The second movement mechanism configured to relatively move the mounting portion and the workpiece in a direction intersecting the movement direction. The memory is configured to store computer-readable instructions that, when executed by the processor, instruct the processor to perform processes. The processes include acquiring plot data, acquiring information relating to a remaining amount of the liquid of the pen, setting a relative movement speed of the mounting portion and the workpiece, and controlling the first movement mechanism and the second movement mechanism at the set movement speed, and performing drawing on the workpiece.

A pen cartridge that holds a pen, detachably attached to a plotter to perform drawing using the pen includes: a cylindrical hollow housing into which the pen is inserted; an operation member provided on the housing; the operation member to rotate between two positions around a central axis with respect to the housing; the central axis extends in the direction in which the pen is inserted; and a grasping member provided in the housing and including a plurality of grasping parts to grasp an outer circumference of the pen inserted into the housing at a plurality of different locations in an axial direction, the plurality of grasping parts to transition from a released state to a grasping state when the operation member is rotated.

A drawing apparatus is provided. In the apparatus plural drawing tools for applying ink on an object are held by plural drawing tool holding units respectively. A drawing unit takes one of the plural drawing tools from the plural drawing tool holding units to draw an image on the object. An imaging unit images an identification image, which includes first information representing colors of inks to be applied respectively by the plural drawing tools and second information representing an arrangement of the plural drawing tools held in the plural drawing tool holding units. A controlling unit controls the drawing unit to draw a design image having at least one color on the object, based on the first and second information included in the identification image and the color of the design image.