摘要:
The image heating apparatus for heating an image formed on a recording material, comprises a flexible sleeve; a driving roller which contacts an outer peripheral surface of said sleeve and rotates said sleeve; a sliding member which contacts an inner peripheral surface of said sleeve and forms said driving roller together with a nip portion by nipping said sleeve between thereof; and an inner surface regulating member comprising an opposing area opposed to the inner peripheral surface of a generatrix direction end portion of said sleeve; wherein the recording material is nipped and conveyed by the nip portion; and wherein a outlineoutline of the opposing area of said inner surface regulating member is approximately similar to the outlineoutline of the end face of said sleeve when said sleeve is rotated by said driving roller in a state in which said inner surface regulating member is not attached to said apparatus. In this way, the durability of the flexible sleeve can be enhanced.
摘要:
The image heating apparatus for heating an image formed on a recording material, comprises a flexible sleeve; a driving roller which contacts an outer peripheral surface of said sleeve and rotates said sleeve; a sliding member which contacts an inner peripheral surface of said sleeve and forms said driving roller together with a nip portion by nipping said sleeve between thereof; and an inner surface regulating member comprising an opposing area opposed to the inner peripheral surface of a generatrix direction end portion of said sleeve; wherein the recording material is nipped and conveyed by the nip portion; and wherein a outlineoutline of the opposing area of said inner surface regulating member is approximately similar to the outlineoutline of the end face of said sleeve when said sleeve is rotated by said driving roller in a state in which said inner surface regulating member is not attached to said apparatus. In this way, the durability of the flexible sleeve can be enhanced.
摘要:
An image forming apparatus includes at least one image forming unit configured to form an image, a belt for transferring an image formed by the image forming unit onto a recording material, and an opening and closing unit having the belt and openable and closable relative to a main body of the apparatus. The belt is provided above the image forming unit, and the image forming unit is removable from the main body of the apparatus when the opening and closing unit is open. The opening and closing unit slides substantially horizontally, thereby opening and closing relative to the main body of the apparatus.
摘要:
An image forming apparatus including a plurality of image bearing members for bearing respective color images, and a transfer material bearing member for bearing and conveying a transfer material, wherein, at transfer positions where the image bearing members are contacted with the transfer material bearing member, the images on the image bearing members are successively transferred electrostatically onto the transfer material born on the transfer material bearing member in a superimposed fashion, and wherein a transfer material conveying path defined by the transfer material bearing member including the transfer positions is protruded toward a side opposite to a side on which the image bearing members are provided.
摘要:
An image forming apparatus including a plurality of image bearing members for respectively bearing images of different colors, a transfer material bearing member for bearing a transfer material, wherein selectable is a mode for transferring, to the transfer material borne by the transfer material bearing member, an image of predetermined color from a predetermined image bearing member only, selected among the plurality of image bearing members. A deforming device for deforms the conveying surface of the transfer material bearing member for the transfer material, the deforming device being adapted, when such mode is selected, to deform the conveying surface in such a manner that the predetermined image bearing member alone comes into contact with the transfer material borne by the transfer material bearing member, wherein the deforming device is adapted to contact the transfer material bearing surface of the transfer material bearing member thereby deforming the conveying surface.
摘要:
An image forming apparatus includes an endless belt for carrying an image or for conveying an image forming medium, a driving roller connecting across the endless belt and driving the endless belt, a driven roller connecting across the endless belt and being driven in correspondence to movement of the endless belt, an image former for forming an image to the endless belt or to a medium conveyed by the endless belt, a speed detector for detecting moving speed of the endless belt and a speed controller for controlling the moving speed of the endless belt based on a detection result from the speed detector. The speed detector generates one pulse per rotation of the driven roller being driven in correspondence to the endless belt.
摘要:
A unit detachably mountable to an apparatus main assembly s provided with a coupling for receiving a rotational driving force from the apparatus main assembly. Also the apparatus main assembly is provided with a coupling to be engaged with the coupling of the unit. At least one of these couplings can be pushed in a direction parallel to a rotation shaft and one of the couplings is provided with an inclined surface. During mounting and demounting of the unit, the engagement between the couplings is released by the pushing-in of one of the couplings pushed by the inclined surface.
摘要:
A memory chip includes a plurality of pins. The plurality of pins are divided into two rows for arrangement on the opposite sides of the memory chip. All data I/O pins are arranged on one side surface (in the same row) of a package. In the case of forming a memory module, each chip is arranged such that the data I/O pins may be nearest to a center line of a module substrate parallel to a connect pin group. Thereby, interconnections between the respective memory chips and the connect pins have substantially equal lengths.
摘要:
A semiconductor memory device according to the present invention includes: a test mode setting circuit capable of serially setting a plurality of test modes in accordance with an external signal; a voltage generating circuit; a column related control circuit; a row related control circuit; and a memory cell array. In a corresponding test mode, odd-numbered word lines/even-numbered word lines are brought into a selection/non-selection state. In the corresponding test mode, a voltage of the bit line is set higher (an internal power supply voltage) or lower (a ground voltage) than an equalization voltage in a normal operation mode. Thus, a checker pattern can efficiently be written.
摘要:
Memory arrays are divided into banks which can be operated independent from each other. Read data storing registers and write data storing registers operating independent from each other are provided for the banks. The memory array is divided into a plurality of small array blocks, local IO lines are arranged corresponding to each array block, and the local IO lines are connected to global IO lines. The global IO lines are connected to preamplifier groups and to write buffer groups. By control signal generating circuits and by a register control circuit, inhibition of writing of a desired bit only during successive writing operation can be done, data can be collectively written to the selected memory cells when the final data is input if the data writing should be stopped before reaching the wrap length in successive writing, and the timing for activating the memory array when the write cycle should be repeatedly carried out can be delayed. A synchronous semiconductor memory device having small chip area, high speed of operation, low power consumption and multiple functions is provided.