摘要:
An imaging apparatus that is capable of realizing good cleaning characteristics and transfer characteristics, and obtaining a high quality image using toner having a high average roundness is provided. The imaging apparatus includes an image carrier, a charge unit, a developing unit, a transfer unit, and a cleaning unit. The transfer unit may directly transfer a toner image onto a recording medium that is carried by a transfer belt, or transfer the toner image onto the transfer belt first to then transfer the toner image onto the recording medium from the transfer belt. The cleaning unit includes a cleaning blade and a brush roller. The toner used in the imaging apparatus has an average roundness Ψ within a range of 0.93˜0.99, and a friction coefficient μs of the image carrier satisfies a condition, friction coefficient μs≦3.6−3.3×average roundness Ψ.
摘要:
An image-fixing apparatus including a fixing belt; a fixing member; a pressure member; and a heating source, wherein the fixing belt is heated by the heating source, wherein the fixing member is brought into pressure contact with the pressure member via the fixing belt to form a nip and a paper carrying an unfixed toner is allowed to pass through the nip, thereby fixing the unfixed toner on the paper, and wherein the toner to be used includes a binder resin, a colorant, and a releasing agent, and wherein the toner has a ½ flown-out temperature of 115° C. to 145° C. and has a storage elastic modulus (G′) at 190° C. of 200 Pa or more.
摘要:
By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
摘要:
By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
摘要:
An image forming apparatus including a latent image bearing member, a charger, a latent image forming device, a developing device, a surface moving member, a transfer device, a cleaner having a cleaning blade and an irradiating device configured to discharge the latent image bearing member. This developing device is configured to develop images with a toner having a circularity not less than 0.94. The irradiating device is disposed on the upstream from the cleaner relative to the rotation direction of the latent image bearing member.
摘要:
A video signal recording and reproduction apparatus comprising a video signal recording block and a video signal reproduction block. The video signal recording block includes a sub information/feature amount detector for detecting sub information and/or a feature amount from a video signal, an identification signal generator for generating identification signals corresponding to respective frames of the video signal in accordance with the sub information and/or feature amount, and a recorder for recording the identification signals together with the video signal in sectors of a program area on a recording medium. The identification signals are recorded in a sub code area in each sector of the program area containing the corresponding frames of the video signal. The video signal reproduction block includes an identification signal detector for detecting the identification signals from the sub code areas and reproduction means for generating a screen comprised of respective frames of the video signal recorded in the sector of the program area corresponding to the detected identification signals.
摘要:
A signal reproducing apparatus is disclosed with which time is not required from a moment at which a user has started a reproducing operation to a moment at which the user is able to actually confirm required information. An audio-and-video-signal reproducing apparatus incorporates a head for recording an audio and video signal recorded on a recording medium; a RAM on which the audio and video signal read by the head is temporarily stored; and a control circuit having a control function for controlling the head to read the audio and video signal recorded on the recording medium and controlling writing of the audio and video signal temporarily stored in the RAM.
摘要:
A method and an apparatus for recording and reproducing a TV broadcasting signal includes a CM detecting unit, a write data processing circuit, a recording system control circuit, and a recording medium. The CM detecting unit operates to detect if a TV broadcasting signal composed of a RF signal inputted through an antenna is now a CM. The write data processing circuit operates to generate CM information accompanied with the CM detected by the CM detecting unit. The recording system control circuit operates to record on the recording medium the CM information generated by the write data processing circuit together with a video signal and an audio signal.
摘要:
A signal recorder/reproducer comprising an integrated buffer memory 22 having a memory area for a recording system and a memory area for a reproduction system, the allocation of the memory areas being variable, and a system controller 5 to control, via a recording control signal input unit 2 or reproduction control signal input unit 4, the allocation of the memory areas in the integrated buffer memory 22 depending upon which is designated by the user, a recording or reproduction mode.
摘要:
A magnetic recording and reproducing apparatus for recording a desired sound or picture signal to a magnetic tape by a magnetic head. At the time of normal-speed recording and reproduction, the magnetic tape is taken up at a constant speed, but by changing the tape travelling speed of the tape on the rotary drum, DTF control and high-speed noiseless reproduction are enabled. The tension of the tape on the entrance side of the rotary drum is controlled to a desired value. This apparatus includes a tape tension actuator and a tape drawing actuator on the entrance side and on the exit side, respectively, of the rotary drum. In DTF control, both tape actuators correct a tracking error of the tape in cooperation with each other. In high-speed noiseless reproduction, both tape actuators are differentially driven so as to lower the tape travelling speed on the rotary drum. Both tape actuators are driven in feedback control using the modern control.