摘要:
The disclosure relates to a rendering apparatus, method and non-transitory machine-readable storage medium for determining a speed of a carriage during rendering of an image. A plurality of swaths of rendering fluid are deposited on a print target using a set of printheads moving across the print target. A temperature of a curing module is measured at a respective time of depositing each respective swath. An arrival time for each deposited swath to respectively arrive at the curing module is predicted. The speed of the carriage during depositing the plurality of swaths is determined based on the measured temperature of the curing module and predicted arrival time for each respective swath.
摘要:
Provided is a printer having: a carriage configured to carry and move a printhead; a camera attached to the carriage and configured to photograph an image printed by the printhead; an adjustment mechanism configured to adjust an installation position of the camera; and a processor configured to control to move the carriage to a position of a predetermined specific mark, photograph the specific mark by the camera, and based on a photographed image of the specific mark, adjust an installation position of the camera by the adjustment mechanism.
摘要:
An ink jet recording head is detachably attached to an ink jet recording apparatus including a carriage operable to reciprocally move and an optical encoder scale. An ink jet recording head, a liquid storage container, or an ink jet recording apparatus includes at least one of a light emitting element configured to emit light to an encoder scale and a light receiving element configured to receive light through the encoder scale.
摘要:
A carriage drive control device is provided which moves a carriage at a constant speed in a recording area for recording operation and which moves the carriage to a target stop position in a better way for non-recording operation. A controlled variable of actuator is calculated based on a speed error between a target speed and a moving speed of the carriage. The target speed is set based on a position error between the target stop position and a current position of the carriage, and is not more than a predetermined first speed. When the actuator starts moving the carriage for recording operation, a control rule used for calculation of the controlled is set to a first control rule, and when the actuator starts moving the carriage for non-recording operation, the control rule is set to a second control rule.
摘要:
An inkjet print device prints by reciprocally moving a carriage (15) in a main scan direction while controlling ink ejection from a print head (17) according to information on the position of the carriage (15) both in a forward movement and in a return movement. An encoder (22), a first U/D counter (29), a second U/D counter (30), a timer (31), and an interval timer (32) senses the position of the carriage (15). The encoder (22), the first U/D counter (29), and the timer (31) senses the speed of the carriage (15). A TBL memory (33) is used in determining a positional correction quantity at a sensed carriage speed from a positional correction quantity at a predetermined carriage speed. A head control section (26) controls ink ejection from the print head (17) based on the carriage position and the positional correction quantity.
摘要:
A motor-controlling method includes the steps of: preparing a motor control device provided with a motor for moving an object to be moved and causing the motor to move the object to a target position by first accelerating the object and then moving the object at a constant velocity; storing in advance an acceleration-period power consumption value corresponding to a power consumption of the motor during the accelerating movement; storing in advance a current value of a current flowing through the motor when the object is moved at the constant velocity; detecting a time for which the object is moved at the constant velocity when the object is moved to the target position; calculating a constant-velocity-period power consumption value corresponding to a power consumption of the motor during the constant velocity movement of the object based on the time that has been detected and the current value; and calculating a power consumption of the motor for a period during which the object is moved to the target position based on the acceleration-period power consumption value and the constant-velocity-period power consumption value.
摘要:
An image forming apparatus includes at least one cooperative element sensor. A carriage for use in the image forming apparatus has a main body including at least one printer element and at least first and second cooperative elements carried by the main body in spaced relation to one another.
摘要:
An optical sensor has a sensor compensation to compensate for sensor degradation due to airborne contaminations in the operating environment. For example, in a thermal ink jet printing environment, the thermal ink jet operation produces misting or splashing of the thermal ink jet droplets, causing a gradual degradation of the sensor sensitivity due to a surface accumulation of the ink jet droplets. The optical sensor device includes an optical emitter emitting an optical signal according to an emitter input, an optical detector disposed to detect the optical signal and output a detector output having an output level according to the detected optical signal, a variable attenuator having an adjustable attenuation setting, and a controller adjusting the attenuation setting of the variable attenuator. During an adjustment operation, the controller determines the attenuation setting at which the output level of the detector output exceeds a predetermined value, and accordingly sets the variable attenuator to operate the detector output at an output level exceeding the predetermined value by a margin. Compensations for the optical emitter and the optical detector are disclosed, including the use of a variable pulse-width modulated signal.
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:
If print agents used are detected by an optical sensor at different sensitivities, the preset invention enables the easy setting of adjustment values for print positions resulting from these print agents. To accomplish this object, for example, the present invention substitutes and sets adjustment values for print positions resulting from cyan, light cyan, or black ink, corresponding to a high detection sensitivity, for adjustment values for print positions resulting from a light magenta, yellow, or magenta ink, corresponding to a low detection sensitivity.