摘要:
A transfer roller which transfers a toner image to a recording sheet fed in a gap between a photoreceptor drum and the transfer roller, and a pre-transfer guide which guides the recording sheet are pushed to be displaceable by a spring by use of a roller so that a predetermined gap is maintained between the photoreceptor drum and the transfer roller and that the positions of the transfer roller and the pre-transfer guide depend on the position of the photoreceptor drum. The recording sheet P on which an image has been transferred is conveyed to a conveying guide. A post-transfer guide which receives the abutment of the end of the image transferred recording sheet and guides the recording sheet to the conveying guide is provided to be displaceable integrally with the transfer roller and the pre-transfer guide. The post-transfer guide is made of a resin with a resistance of 10.sup.10 .OMEGA. to 10.sup.16 .OMEGA..
摘要:
In a transfer unit of a non-contact roller transfer method, both ends of a transfer roller shaft are supported independently of each other so as to be movable upward and downward, and an upward pushing force is provided thereto. A gap maintaining roller provided in the vicinity of each end portion of the transfer roller shaft is always in contact with the surface of a photoreceptor drum so that the gap between the surface of the photoreceptor drum and the transfer roller is maintained uniform and fixed. Further, both ends of a pre-transfer guide for guiding the sheet to the photoreceptor drum are supported in a manner such that the movement of each end accords with the movement of the end portion of the transfer roller, so that the distance between the photoreceptor drum and the pre-transfer guide is maintained uniform and fixed.
摘要:
If it is desired to display the number of copies which can be outputted corresponding to the defined capacity of a developer which is determined by an image forming apparatus, a document which is thought to have a substantially average black ratio of the respective black ratios of images actually recorded by the image forming apparatus is prepared. The prepared document is set in reading means. An image of the set document is read by reading means. The black ratio of the image of the document is calculated on the basis of an output of the reading means. The number of copies which can be outputted corresponding to the defined capacity of the developer which is determined by the image forming apparatus is calculated on the basis of the calculated black ratio. The calculated number of copies which can be outputted is displayed.
摘要:
A transferring apparatus transfers a toner image formed on the surface of a photoreceptor drum onto a sheet. The photoreceptor drum surface and a transfer roller are arranged in such manner that a gap larger than the thickness of the sheet is left between the photoreceptor drum and transfer roller, and a lower guide member for guiding the sheet in such direction that the sheet abuts the drum surface at a predetermined angle is arranged between a resist roller pair and the drum. The sheet which abuts the drum surface by way of the upper surface of the guide member is in close contact with the drum surface while being bent and deformed along the drum surface. A conveying roller is provided, opposite the upper surface of the lower guide member, with a predetermined gap between, at a position close to but out of contact with the drum surface. The conveying roller may also be arranged to contact the transfer roller.
摘要:
A facsimile apparatus, which receives image information and records the information on a paper sheet, features a device for recording received image information, a storing device for storing received information and an environmental condition detecting device for detecting environmental conditions in the vicinity of the facsimile apparatus. The facsimile apparatus also includes a control unit for preventing the recording device from recording the received information on a paper sheet, and instead causing the storing device to store the received image information in response to the environmental condition detecting device detecting an unsuitable environmental condition. The control unit also causes the recording device to record the image information, which has been stored in the storing device under the environmental condition unsuitable for the recording operation, in response to the environmental condition detecting device subsequently detecting environmental conditions suitable for the recording operation by the recording device.
摘要:
In an image forming apparatus using a transfer unit of a roller transfer method, the contact between the transfer unit and a photoreceptor drum can easily be canceled. The transfer unit is brought into contact with the photoreceptor drum by supplying an upward pushing force to a supporting member of the transfer unit, and a lever engaging with the supporting member to push down the supporting member is provided to connect with a front cover of the apparatus body. The transfer roller, the pre-transfer roller for feeding a sheet to the photoreceptor drum and driving force transmitting gears provided therebetween are supported by the same member to fix their relative positions so that the driving force is constantly transmitted from the transfer roller to the pre-transfer roller.
摘要:
A slot machine has a display on which symbols are rearranged in partitioned regions arranged in multiple columns and rows. The display has multiple display windows corresponding to the respective columns for each unit game. In each of the display windows, symbols are rearranged by executing video display in which a symbol column having multiple symbols is scrolled in an arrangement direction of the symbols. When a symbol rearranged in at least one partitioned region in at least one of the symbol columns already stopped from scrolling forms a pattern just before winning combination establishment in which the rearranged symbol requires a specific symbol in at least one other symbol column in scrolling, a passing sound of the specific symbol is outputted from a speaker in synchronization with a timing at which the specific symbol in the symbol column in scrolling passes through the display window.
摘要:
In a developing device including a developer tank and a developing roller, an internal space of the developer tank is partitioned by a partition into a first conveying path, a second conveying path, a first communication path, and a second communication path. A first developer conveying section that conveys the developer in the developer tank in a first conveying direction X is disposed in the first conveying path. A second developer conveying section that conveys the developer in the developer tank in a second conveying direction Y is disposed in the second conveying path. The first developer conveying section includes a first spiral blade, and a rotation tube.
摘要:
A developing device comprising: a developer tank housing a developer including a toner and a carrier; a toner replenishment port; a developing roller; a first developer conveying path and a second developer conveying path; a conducting plate for peeling a recovery developer on a surface of the developing roller after the toner is supplied to a photosensitive drum from the surface of the developing roller so as to guide the recovery developer to the first developer conveying path; and first and second developer conveying members arranged on the first and second developer conveying paths, wherein the first developer conveying member has a cylindrical hollow rotating shaft with opened both ends that is rotatably provided to the first developer conveying path, and divides the first developer conveying path into an external first developer conveying path and an internal first developer conveying path, an external spiral blade fixed to an outer periphery of the hollow rotating shaft, and an internal spiral blade fixed to an inner periphery of the hollow rotating shaft, a direction where the developer is conveyed by the external spiral blade is the same as a direction where the developer is conveyed by the second developer conveying member and is opposite to a direction where the developer is conveyed by the internal spiral blade.
摘要:
Conventionally, the magnetic field generator was arranged perpendicularly to the axis of the electron beam. The magnetic field generator of this invention is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam. Specifically, the magnetic field generator is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam within the range in the cathode side from the focused and deflected electron beam. Inclination up to the anode side opposite to the cathode side will lead to a possibility of increasing the reduced X-ray source diameter. Thus, arranging the magnetic field generator so as to be inclined within the range in the cathode side from the electron beam may reduce the X-ray source diameter.