摘要:
A charging apparatus having high durability, with no occurrence of rusts or the like, scarcely impaired for the controllability of the charged potential even when contaminants such as a toner are deposited more or less, capable of stably controlling the charged potential on the photoreceptor in an appropriate range for a long time and being inexpensive as well, is provided. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a grid electrode. In the charging apparatus, a nickel plating layer containing polytetrafluoroethylene particles is formed on the surface of the grid electrode.
摘要:
A charging apparatus having high durability, with no occurrence of rusts or the like, scarcely impaired for the controllability of the charged potential even when contaminants such as a toner are deposited more or less, capable of stably controlling the charged potential on the photoreceptor in an appropriate range for a long time and being inexpensive as well, is provided. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a grid electrode. In the charging apparatus, a nickel plating layer containing polytetrafluoroethylene particles is formed on the surface of the grid electrode.
摘要:
An operating device includes a first support frame, a support shaft, an operating panel, a second support frame, and a spring. The first support frame is fixed to a front side of a main apparatus. The support shaft projects from the first support frame in a widthwise direction of the main apparatus. The second support frame is pivotally supported on the support shaft in such a manner as to be displaceable within a predetermined range in the widthwise direction while supporting the operating panel. The spring biases the second support frame in a first direction which the second support frame is pressed against the first support frame. The first support frame has a plurality of recesses on a circumference of a circle that is concentric with the support shaft. The second support frame has a first projection capable of being engaged into any one of the recesses.
摘要:
An image processing device includes a processing section, a load section, an operating section, and a display unit. The processing section performs processing upon sheets of a recording medium. The operating section includes input keys which receive input operation for controlling the processing section, and is disposed over the load section. The display unit displays information corresponding to input operation from the operating section. And the operating section can be freely shifted between a pulled out position in which its input keys are exposed to the exterior, and a storage position in which it is stored internally, and, in the storage position, is disposed below the display unit.
摘要:
In an image forming apparatus, an electrostatic latent image formed on a surface of a photoreceptor is developed into a toner image. A printing paper transported on a transport belt is brought into contact with the surface of the photoreceptor and an electric field is applied to the printing paper from a rear surface of the transport belt by a transfer roller to transfer the toner image onto the printing paper. The transfer roller applies different levels of electric field to the printing paper, so that a predetermined transfer electric field is applied to a region other than a leading edge of the printing paper being transported. An electric field weaker than the predetermined transfer electric field is applied to the leading edge. Even in the presence of a projection generated when the printing paper is cut, the printing paper naturally strips off from the surface of the photoreceptor.
摘要:
An image forming apparatus includes a history storage portion for storing the usage history involving the number of prints of the image forming apparatus, and a processing time controller for changing the time of the pre-processing operation before or the time of the post-processing operation after a printing process of the printing portion, based on the stored usage history so as to exclude the influence of the unfixed developer on the printing process.
摘要:
In an image forming apparatus of the present invention, a scorotron charging device has a meshed grid electrode which is meshed more coarsely in a high-speed apparatus than a meshed grid electrode in a low-speed apparatus according to a circumferential velocity of a photoreceptor. With this arrangement, it is possible to charge the photoreceptor at a predetermined potential in the high-speed apparatus, without increase of the amount of ozone generation and upsizing of the image forming apparatus.
摘要:
In the present applying mechanism, a part of a guide sheet 33 bulges (arches) away from an oil application roller 16, with respect to a vertical line S passing through the center of a pipe 31. In other words, in the present applying mechanism, a part of the guide sheet 33 has a shape of avoiding (bypassing) the oil application roller 16 that has a high temperature. With this, oil flowing on the guide sheet 33 is kept away from the high-temperature oil application roller 16. On this account, it is possible to restrain the degradation of the oil flowing on the guide sheet 33 on account of the heat from the application roller.
摘要:
An image forming apparatus transfers a toner image formed on a photoconductor drum onto a sheet-like recording member while the sheet-like recording member is transported and attracted to a transfer belt, and comprises a jam handling control unit for detecting a transport fault of the sheet-like recording member, and for stopping the transport operation when the transport fault is detected. When the transport fault is detected in a section other than a fixing section, the jam handling control unit first causes the transport operation of the fixing section, and thereafter causes the transfer belt and the transport operation on the upstream side thereof to stop, and any sheet-like recording member remaining on the transfer belt so that the transport mechanism on the upstream side thereof is transported and stopped at the position spanning between the area of the fixing section and the area of the transfer belt.
摘要:
An image reading device includes an image reading section, a frame, and an operating unit. The image reading section is configured to obtain image data by reading an image carried on a document. The frame supports the image reading section. The operating unit has an operating section including a plurality of input keys adapted to receive an input operation for controlling the image reading section, and an operating unit body supporting the operating section for displacement between a drawn-out position in which the input keys are exposed to outside and a housed position in which the input keys are housed inside. The operating unit is supported by the frame.