摘要:
An image transfer apparatus has a transfer charging member for transferring a toner image from an image bearing member to a transfer material, the transfer charging member adapted to contact with a surface of the transfer material conveyed between the image bearing member and the transfer charging member opposite to a surface thereof facing the image bearing member, and a guide member for supporting the transfer charging member and to guide it between the image bearing member and the transfer charging member.
摘要:
In a fixing device, a core material of a fixing rotating member has two largest-diameter portions respectively located between a central portion and each end portion of the fixing rotating member, within a region where a recording material of a largest size passes, and the diameter of each core material is gradually reduced from the largest-diameter portion toward the central portion and toward the nearest end portion. The outer shape of the fixing rotating member conforms to the shape of the core material. According to this configuration, it is possible to prevent corrugation and curl of the recording material, and to provide excellent mountability of the recording material.
摘要:
A method for folding a jacket material mainly for a magnetic cartridge, by using a folding insert, a folding bar and a heater bar, into a jacket of good external shape and high dimensional precision with a folded edge entirely free from loosening, warping, waving, swelling, etc.
摘要:
An electrophotographic process including forming, on a photosensitive plate, an electrostatic latent image corresponding to optical information, developing the latent image by the reversal development and transferring the developed image onto a transfer material includes the improvement whereby a voltage of polarity opposite to that of the developer is applied to the photosensitive plate at least during the time from the end of the reversal development to the transfer step. This improvement in the electrophotographic process and apparatus for same prevents developer particles from being scattered away from the photosensitive plate and thereby also avoids the trouble of distortion of the image at the transfer step.
摘要:
With a double-sided display module having a main panel and a sub-panel sharing drive signals, the image quality of the main panel is improved. When the display devices uses the same driver IC to drive the main panel and the sub-panel, the contrast is uneven at the border area between a region of the main panel where signal electrodes share drive signals with the sub-panel and a region of the main panel where signals electrodes do not share drive signals. In order to make the contrast unevenness practically invisible to the naked eye, an unshared electrode adjacent to the border between different contrast levels on the main panel is connected to the dummy electrode. The dummy electrode has to be smaller than the total overlap area of one electrode that constitutes a pixel of the sub-panel. In the case where the sub-panel has more than one dummy electrode, the dummy electrodes are gradually made smaller.
摘要:
A developing method includes the steps of opposing a developer carrying member to an image bearing member, the developing carrying member carrying a developer to the image bearing member for bearing an electrostatic image, supplying, to the developer carrying member, insulative one component developer having a weight average particle size of 4-8 microns, forming, between the image bearing member and the developer carrying member, an alternating electric field having a back-transfer period, transfer period and rest period, wherein a blank ratio of a sum of (i) the back-transfer period plus (ii) the transfer period and the rest period, during a developing operation, is 5:1-2:1.
摘要:
An image forming apparatus includes an image bearing member; a device for forming a toner image on the image bearing member; an intermediate transfer member for receiving the toner image from the image bearing member; and wherein the intermediate transfer member has an average surface roughness which is smaller than one half a size of one pixel.
摘要:
In a fixing device, a limitation member for preventing the center distance between a heating member and a shaft of a pressing roller from being reduced does not limit the center distance in an initial state of the device, and prevents a further decrease in the distance when the distance is reduced. It is thereby possible to suppress an increase in the width of a nip portion provided between the heating member and the pressing roller, and to prevent a failure in fixing.