摘要:
The present invention provides a sheet conveying apparatus and an image forming apparatus capable of preventing occurrence of skew feeding when correcting sheet lateral deviation. A pair of lateral-shift correcting rollers 305 to correct positional deviation in the sheet width direction based on positional deviation quantity detected by a lateral-registration detection sensor 204c is controlled after controlling a skew feeding correcting roller 203 so as to correct sheet skew feeding based on skew-feeding quantity at a sheet leading edge detected by skew-feeding detection sensors 204a and 204b. Then, skew-feeding quantity of the sheet leading edge to be detected by the skew-feeding detection sensors 204a and 204b for correcting skew feeding of the next sheet is adjusted with skew-feeding quantity at the sheet trailing edge detected by the lateral-registration detection sensor 204c after positional deviation in the sheet width direction is corrected.
摘要:
It is an object of the present invention to provide an air conditioner for inhibiting noise increase and heating performance degradation due to frost attachment onto an outdoor heat exchanger. In an air conditioner (1), a determining part (43) of a control unit (4) determines that the amount of frost attaching onto an outdoor heat exchanger (13) is increased when a difference between an outdoor temperature To and an outdoor heat exchanger temperature Te is increased, and executes a frost attaching condition operation control for reducing the rotation speed of an outdoor fan (23). The operating frequency of the compressor (11) is herein increased in accordance with the reduction amount of the temperature of an indoor heat exchanger (15). The control unit (4) includes change amounts preliminarily set for changing the operating frequency of the compressor (11) in stages. The change amounts correspond to the stages on a one-to-one basis. The control unit (4) increases the operating frequency of the compressor (11) by corresponding one of the change amounts required for upgrading a present stage of the operating frequency of the compressor (11) to a stage immediately higher than the present stage every time the temperature of the outdoor heat exchanger (15) is reduced by a predetermined amount, and reduces the rotation speed of the outdoor fan (23) in accordance with the change amount.
摘要:
An air conditioner includes a heat generating member, an electromagnetic induction heating unit, an air conditioning target space temperature detecting unit, an outdoor air temperature detecting unit, and a control unit. The heat generating member thermally contacts a refrigerant piping and/or refrigerant that flows through the refrigerant piping. The electromagnetic induction heating unit includes a magnetic field generating part that generating part generates a magnetic field in order to heat the heat generating member by induction heating. The control unit, when the refrigeration cycle is performing heating operation or defrosting operation, inhibits the generation of the magnetic field by the magnetic field generating part when the temperature of the space to be air conditioned and the outside air temperature do not satisfy a first prescribed condition or when a difference between a target set temperature and the temperature of the space does not satisfy a second prescribed condition.
摘要:
An air conditioning apparatus includes a refrigerant circuit, a refrigerant heating unit and a stop signal controller. The refrigerant circuit includes a compressor, an indoor heat exchanger, a pressure reducing mechanism, and an outdoor heat exchanger. The refrigerant heating unit heats refrigerant flowing through the refrigerant circuit. The stop signal controller, in a case of causing the compressor to stop at a time when the compressor and the refrigerant heating unit are both operating, executes first stop control in which a stop signal is issued in order to stop the refrigerant heating unit, and then a stop signal is issued in order to stop the compressor after elapse of a first amount of time. A method of controlling an air conditioning apparatus having the refrigerant circuit and the refrigerant heating unit includes executing the first stop control.
摘要:
An image forming apparatus which can reduce color shift and image blurring caused by increased temperature in the apparatus and form high-quality images without causing an increase in the cost and size of the apparatus. An image sensor unit reads surface patterns of an intermediate transfer belt. A digital signal processor (DSP) controls the movement of the belt in a transverse direction perpendicular to a moving direction thereof based on the surface patterns of the belt read by the image sensor unit.
摘要:
A sheet conveying device for conveying a sheet includes a displacement-amount detector configured to detect an amount of displacement of a conveyed sheet from a conveyance reference in a width direction being substantially perpendicular to a sheet conveying direction and a plurality of sheet conveying roller portions configured to be shiftable in a direction substantially perpendicular to the sheet conveying direction while pinching the sheet having the amount of displacement detected by the displacement-amount detector. Before the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted based on the amount of displacement detected by the displacement-amount detector from a conveyance-reference position in a direction in which the sheet is displaced. After the sheet reaches the sheet conveying roller portions, the sheet conveying roller portions are shifted while pinching the sheet so as to reduce the amount of displacement.
摘要:
When an abnormality factor occurs in a second heating device, a sheet located upstream of a branch portion is discharged onto a discharge tray through a second conveying path. After the abnormality factor in the second heating device is removed and the sheet discharged to the discharge tray through the second conveying path is set in a paper refeeding tray, a sheet feeding portion feeds the sheet set in the paper refeeding tray to the second heating device.
摘要:
An image forming apparatus image which is capable of accurately correcting the magnification of an image without degrading the quality of the formed image or reducing productivity, to thereby make it possible to cope with an increase in the operating speed of the apparatus. The image forming apparatus is comprised of an image processing section having an image area-separating section, and an image forming section having an exposure control section. The image area-separating section separates image data into at least two kinds of areas. The exposure control section performs magnification correction on at least one area of the image data separated by the image area-separating unit.
摘要:
A color image forming apparatus which is capable of preventing deterioration in image formation quality caused by vibrations of a developing unit without halting an image forming operation and using a simple construction. A developing rotary unit incorporates developing devices corresponding to respective ones of a plurality of image formation colors. In forming an image, the developing rotary unit is moved to location for development of an image of each of the plurality of image formation colors. The level of vibrations applied to the developing rotary unit is detected, and the drive control pattern for the developing rotary unit is determined depending on the detected level of vibrations.
摘要:
A heating apparatus, for heating a material P to be heated by heat from a heat generation member which has a predetermined curie temperature characteristic and generates heat by magnetic flux produced by a magnetic flux generation device. The apparatus includes a discrimination device for discriminating whether or not the curie temperature characteristic of the heat generation member is a predetermined characteristic and a control device for terminating the supply of electric power to the magnetic flux generation device when the discrimination device determines that the curie temperature characteristic is not the predetermined characteristic.