摘要:
Disclosed is a recording apparatus that helps to achieve a reduction in size and cost. The recording apparatus has a U-turn sheet feeding mechanism for reversing and feeding a recording medium and a duplex transport mechanism for reversing the recording medium and performing printing on both sides thereof, in which the same transport path serves as a transport path for transporting the recording medium from a U-turn sheet feeding roller to a main transport roller for transporting the recording medium to a printing portion and as a transport path for reversal in duplex transport. Further, a transport roller provided in the transport path from the U-turn sheet feeding roller to the main transport roller for transporting the recording medium to the printing portion is the same as a transport roller for duplex transport. A single transport roller serves both as the U-turn transport roller and as the duplex transport roller.
摘要:
When torque of a DC motor is dropped down to zero at a stop position, force is generated by deformation of a member for transmitting the torque of the DC motor. The force moves the driven body which is in the stopped state, which results in a shift of the driven body from the stop position. Therefore, a process for stopping the driven body is performed according to the amount of shift by an encoder which periodically outputs a pulse signal according to movement of the driven body, a unit for acquiring velocity information and position information of the driven body based on the pulse signal, a controlling unit for controlling a moving unit based on the velocity information and the position information, and a unit for calculating the amount of shift, which is caused by the force generated by the deformation of the member for transmitting the torque, at the stop position of the driven body.
摘要:
In controlling a motor in a device which drives a mechanism using the motor as a power source, in executing driving, an ideal profile of the driving is generated in accordance with a target position and a preset initial parameter, driving of the motor is controlled in accordance with the profile, the value of the initial parameter is evaluated at the end of driving, and the value of the initial parameter is changed in accordance with the evaluation result. High-speed accurate position control can be achieved independently of the characteristic of an individual motor to be used.
摘要:
A pack integrally housing inks and printing media has an ink housing section 211 arranged so as to overlap part of a printing media housing section 210. The ink housing section 211 is configured to rotationally move around a rotational moving shaft 212e so as to be opened and closed relative to the printing media housing section 210. On the other hand, the printing media housing section 210 has an opening 215 formed in a lower part thereof and in which part of housed printing media appears, thereby enabling the pack to come into contact with a sheet feeding roller of the printer when the pack is installed in a printer. Additionally, while not installed in the printer, the pack is covered with the opening and closing ink housing section 211, thereby enabling the printing media to be protected from dusts or the like.
摘要:
A power supply line is wired in a loop from a battery power supply, and a power supply relay circuit is installed intermediately of the power supply line such that power is supplied from the power supply relay circuit to an electric load connected to a terminal unit of an intensive wiring line. By this arrangement, not only wires for control signal but also wires for power supply can be reduced. The terminal unit may serve also as the power supply relay circuit.
摘要:
An inexpensive ejection recovery device for an ink jet printing apparatus is provided which can simultaneously perform suction-based recovery operations using a single cap while preventing different kinds of ink from getting mixed in the print head. For this purpose, the ejection recovery device of the invention has a cap to cover a plurality of ejection ports formed in the print head and a pump connected to an exhaust port formed in the cap to generate a predetermined pressure. The cap is formed with a plurality of suction ports and with a plurality of paths connecting each of the suction ports and the exhaust port. Flow resistances of the paths from each of the suction ports to the exhaust port are set equal.
摘要:
An ink-jet recording apparatus includes a recording head upon which ink discharging orifices are arrayed, a cap, having a perimeter coming into contact with a discharging orifice face on the recording head and a sealing space within the perimeter of the cap for covering the discharging orifices, an ink absorbing member provided in the sealing space, and a holding member provided within the sealing space at a position separated from the perimeter so as not to come into contact with the discharging orifice face when the perimeter of the cap is in contact with the discharging orifice face, to hold and prevent the ink absorbing member from being removed from the sealing space. Thus, the ink absorbing member is tightly held in contact to the sealing space of the cap so as to not depart therefrom, and particularly so as to not depart from a suctioning opening at the bottom face of the cap.
摘要:
A braking apparatus comprises a first contact unit arranged on the rotary shaft side of a wheel, at least a second contact unit for contacting the first contact unit for generating a friction force, an actuator for pressing the second contact unit against the first contact unit, and a control unit for controlling the operation of the actuator, wherein the control unit performs the position control operation for moving the second contact unit in such a manner that the interval between the first contact unit and the second contact unit is smaller than a preset distance, and the force control operation for pressing the second contact unit against the first contact unit in accordance with the required braking force.
摘要:
A method of controlling the temperature of a semiconductor substrate for prevention of any cracks from being formed in the semiconductor substrate event though semiconductors having different temperature rise/fall characteristics are fed into a reactor in which each semiconductor substrates is subjected to an oxidation, diffusion, or a chemical vapor deposition process. The temperatures are measured at various points in the semiconductor substrates in the heated reactor; the temperature rise/fall characteristic thereof is determined by computing the rate of temperature rise and the in-plane temperature distribution out of the measured values; a temperature control program adaptable for said temperature rise/fall characteristic is automatically selected out of a plurality of temperature control programs written in advance; the semiconductor substrate is controlled on the basis of the selected temperature control program. Also is provided a susceptor to reduce contamination of the semiconductor substrate with the metal impurities containing gas flow at the time of forming a thin film on the semiconductor substrate, and a gas phase thin film growth apparatus using such susceptor. The susceptor is formed with a gas flow deflector jutting downwardly from the peripheral portion of the reverse side of the susceptor to deflect the gas flow moving upon rotation along the reverse side of the susceptor from the center thereof to the peripheral portion thereof.
摘要:
In the print position adjustment procedure when performing bidirectional printing by using a first head and a second head, patterns (A) and (B) are printed to adjust the print positions of the first and second heads relative to each other in each of the forward and backward directions. A pattern (C) is printed to adjust the print position deviation of one of the two heads (first head) between the forward and backward directions. From these patterns three correction values are obtained to perform corrections. This allows the print position alignment between the forward and backward scans for one head (first head) to be performed by using the pattern (C). The print position alignment of the second head with respect to the first head as a reference in each of the forward and backward directions can be performed by using the patterns (A) and (B). As a result, print position deviations that may occur when the printing apparatus performs bidirectional printing using a plurality of heads can be minimized without having to maintain the precision of the apparatus at so high a level.