The present invention relates to a printing apparatus including: a conveyance roller; and a slitter unit configured to cut a printing medium, which is conveyed by the conveyance roller, wherein the slitter unit includes a cutting mechanism including an upper movable blade and a lower movable blade, each of which is in a round shape, and configured to cut the printing medium at a contact point of the upper movable blade and the lower movable blade, a driving unit configured to rotate the upper movable blade and the lower movable blade, and a control unit configured to control a driving amount of the driving unit, and wherein the control unit controls the driving amount of the driving unit such that a movement speed of the upper movable blade and the lower movable blade passing through the contact point becomes greater than a conveyance speed of the printing medium.

The present invention relates to a printing apparatus including: a conveyance roller; and a slitter unit configured to cut a printing medium, which is conveyed by the conveyance roller, wherein the slitter unit includes a cutting mechanism including an upper movable blade and a lower movable blade, each of which is in a round shape, and configured to cut the printing medium at a contact point of the upper movable blade and the lower movable blade, a driving unit configured to rotate the upper movable blade and the lower movable blade, and a control unit configured to control a driving amount of the driving unit, and wherein the control unit controls the driving amount of the driving unit such that a movement speed of the upper movable blade and the lower movable blade passing through the contact point becomes greater than a conveyance speed of the printing medium.

In order to provide an image forming apparatus capable of forming a high quality image on a film-shaped medium, the present printer includes an image forming section B1 that forms an image on a transfer film using an ink ribbon, a film conveying mechanism that has a motor Mr4 and conveys the transfer film while applying a tension thereto, an ink ribbon conveying section that has a motor Mr3 and conveys the ink ribbon while applying a tension thereto, and a control section that controls the image forming section B1, motor Mr3, and motor Mr4. When adjusting the drive amount of one of the motors Mr3 and Mr4, the control section also adjusts the drive amount of the other one thereof according to the adjustment amount of the one motor.

A printing apparatus includes a print section configured to perform printing on a first side of a medium and then perform printing on a second side that is a back side of the first side, a supply path configured to supply the medium toward the print section, a feeding roller configured to feed the medium along the supply path from an upstream side to a downstream side in a transport direction, a toothed roller provided on the downstream side of the feeding rollers in the transport direction, a drive source configured to rotate the feeding roller and the toothed roller, and a controller configured to control driving of the drive source. The controller performs rotation control for rotating the feed rollers prior to the rotation of the toothed roller with which the medium has collided.

A motor control apparatus operates in a first control mode in which the values of a torque current component and an excitation current component are controlled so that the difference between an instruction phase and a rotation phase is decreased and a second control mode in which constant current is supplied to a winding of a motor. The second control mode is switched to the first control mode if the rotation speed is varied from a value lower than a first threshold value to a value not lower than the first threshold value in the second control mode and the first control mode is kept even if the rotation speed is varied from a value not lower than the first threshold value to a value that is not lower than a second threshold value and that is lower than the first threshold value in the first control mode.

According to one example there is provided a method of adjusting a support structure. The method comprises obtaining a reference orientation of the support structure when the support structure is positioned in a reference position. The height of the support structure is adjusted to a predetermined position and the orientation of the support structure is adjusted such that the orientation of the support structure when in the predetermined position is substantially the same as the reference orientation.

According to one example there is provided a method of adjusting a support structure. The method comprises obtaining a reference orientation of the support structure when the support structure is positioned in a reference position. The height of the support structure is adjusted to a predetermined position and the orientation of the support structure is adjusted such that the orientation of the support structure when in the predetermined position is substantially the same as the reference orientation.

A printer for label printing includes a cutter to cut a continuous label after printing at a position inside of the surface with respect to the outer case of the printer. A separation sensor is disposed between the cutter and the thermal head. A sheet detection sensor is disposed downstream of the cutter in the feeding direction. The sensors are mounted in two stages on a common circuit board. The circuit board is disposed vertically along the feeding direction of the continuous label within the region where a cover-open button to open an opening and closing cover of the printer is disposed.

A digital printing press includes a printing cylinder configured to transport a sheet, a driving device (41) configured to drive the printing cylinder, an encoder (44) configured to detect the phase of the printing cylinder, and first to fourth inkjet nozzle heads (23-26) configured to print the sheet. The digital printing press includes a floating detector (22) facing the printing cylinder and configured to detect an abnormality of the sheet, and a control device (28) configured to control an operation of the driving device (41). The control device (28) includes a function of stopping the driving device (41) when the floating detector (22) detects a floating portion. The control device (28) includes a function of operating the driving device (41) based on the phase of the printing cylinder when the floating detector (22) detects the floating portion and the phase of the printing cylinder when the driving device (41) stops after floating detection and moving the floating portion detected by the floating detector (22) to a predetermined confirmation position. It is possible to provide a digital printing press capable of quickly specifying an abnormality occurrence portion detected during printing.

A digital printing press includes a printing cylinder configured to transport a sheet, a driving device (41) configured to drive the printing cylinder, an encoder (44) configured to detect the phase of the printing cylinder, and first to fourth inkjet nozzle heads (23-26) configured to print the sheet. The digital printing press includes a floating detector (22) facing the printing cylinder and configured to detect an abnormality of the sheet, and a control device (28) configured to control an operation of the driving device (41). The control device (28) includes a function of stopping the driving device (41) when the floating detector (22) detects a floating portion. The control device (28) includes a function of operating the driving device (41) based on the phase of the printing cylinder when the floating detector (22) detects the floating portion and the phase of the printing cylinder when the driving device (41) stops after floating detection and moving the floating portion detected by the floating detector (22) to a predetermined confirmation position. It is possible to provide a digital printing press capable of quickly specifying an abnormality occurrence portion detected during printing.