摘要:
An image forming apparatus comprises a data receiver for receiving encoded character or graphic information in the unit of a page from the outside; a pixel converter for converting the encoded character or graphic information into pixel information; an image forming device for forming an image on a recording medium based on the pixel information; and a feeder for feeding the recording medium to said image forming device. In the apparatus, the feeder is adapted to feed the recording medium to a predetermined position prior to the completion of pixel conversion of a page by the pixel converter.
摘要:
An image forming apparatus includes a feeder means and a recorder. The feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding as the sheet of recording paper to the predetermined position preliminarily, and then feeds the sheet of recording paper being stopped at the predetermined position again in response to a record request signal. The recorder records an image on the sheet of recording paper fed by the feeder means through an electrophotographic process. The recorder means starts preparation to execute the electrophotographic process upon receiving the spare paper feed signal. As a results, throughput is increased without causing other problems.
摘要:
An image forming apparatus includes a feeder means and a recorder. The feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding of the sheet of recording paper to the predetermined position preliminarily, and then feeds the sheet of recording paper being stopped at the predetermined position again in response to a record request signal. The recorder records an image on the sheet of recording paper fed by the feeder means through an electrophotographic process. The recorder means starts preparation to execute the electrophotographic process upon receiving the spare paper feed signal. As a result throughput is increased without causing other problems.
摘要:
An image forming apparatus which converts character or pattern information into bit map information (pixel information) and forms an image based thereon. The image forming apparatus includes a light-beam generator for generating a modulated light beam, a light-beam deflector for scanning an image carrier, a device for feeding a sheet to registration rollers and a driver for driving the image carrier. A time period is provided to operate the light-beam deflector and the feeding device before the driver starts to drive the image carrier to form an image.
摘要:
An image forming apparatus comprises includes a feeder means and recorder. The feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding of the sheet of recording paper to the predetermined position preliminarily, and then feeds the sheet of recording paper being stopped at the predetermined position again in response to a record request signal. The recorder records an image on the sheet of recording paper fed by the feeder means through an electrophotographic process. The recorder means starts preparation to execute the electrophotographic process upon receiving the spare paper feed signal. As a result, throughput is increased without causing other problems.
摘要:
The image forming device of the present invention relates to an image forming device having a moving member which moves while pressing a recording material against an image carrying member as the means of transferring the image on the image carrying member to the recording material. Further, the image forming device has a pair of moving members for fixing the image by conveying the recording material sandwiched therebetween, of which the moving member on the side not in contact with the unfixed image is a moving member having an elastic material layer and a resin surface layer. Further, the present invention has the surface of the moving member of the fixing member on the side not in contact with the unfixed image which is better mold releasability with that of the moving member of the image forming device.
摘要:
An image forming apparatus for forming an image on a recording medium, having an image bearing member; an image forming device for forming an image on the image bearing member; a transfer device for transferring the image formed on the image bearing member by the image forming device onto a recording medium; a heat fixing unit for fixing the image transferred to the recording medium by the transfer device onto the recording medium; a power source; and a controller for detecting a temperature increased condition of the heat fixing unit when the power source is turned ON and for determining a temperature adjust temperature of the heat fixing unit at a fixing operation in accordance with the detected result.
摘要:
A charging apparatus for electrically charging a member to be charged includes a charging member contactable to the member to be charged to electrically charge the member to be charged. The member to be charged includes a core. A voltage source for applying an oscillating voltage between the member to be charged and the charging member such that a frequency f (Hz) of the oscillating voltage, a Young's modulus E.sub.1 (N/m.sup.2) of the member to be charged, a Young's modulus E.sub.2 of the cure an outer circumferential length 1 (m) of the member to be charged, a thickness t.sub.1 (m) of the member to be charged, and a thickness t.sub.2 of the core satisfy:f1.sup.2 /E.sub.1 t.sub.1.sup.3 +E.sub.2 t.sub.2.sup.3 1500 Hz)15001.sup.1 /E.sub.3 t.sub.1.sup.3 +E.sub.2 t.sub.2.sup.3
摘要:
An image forming apparatus includes an image bearing member; a charging member contactable to the image bearing member to electrically charge the image bearing member, wherein an oscillating voltage is applied between the charging member and the image bearing member; wherein a specific weight .sigma. of the image bearing member defined by weight of an effective charging zone of the image bearing member (g) divided by (cross-sectional area thereof (cm.sup.2) .times.length of effective charging zone (cm)) and a frequency f (Hz) of the oscillating voltage satisfy:.sigma..gtoreq.1.4.times.10.sup.-3 .times.f(200.ltoreq.f.ltoreq.350 Hz).sigma..gtoreq.4.0.times.10.sup.-4 .times.f+0.35, (350 Hz 1500 Hz).
摘要:
In an image forming apparatus a toner image is transferred onto a transfer material using an intermediate transfer member. The image forming apparatus has an image bearing member; a toner image forming unit for forming a toner image on the image bearing member; an intermediate transfer member movable along an endless path in contact with the image bearing member; a bias voltage applicator for applying a bias voltage to transfer the toner image from the image bearing member onto the intermediate transfer member at a first transfer position of the intermediate transfer member; and an image transfer device for transferring the toner image from the intermediate transfer member onto the transfer material at a second transfer position of the intermediate transfer member, a residual toner charge for charging residual toner remaining on the intermediate transfer member after image transfer therefrom, to a polarity opposite from a regular polarity of the toner to permit the residual toner to transfer back, simultaneously with a next image transfer at the first transfer position, to the image bearing member when the residual toner passes through the first transfer position.