摘要:
An image forming apparatus includes an image bearing member, latent image forming device for forming an electrostatic image on the image bearing member, the latent image forming device having a charging member contactable to the image bearing member to electrically charge the image bearing member, and the charging member being supplied with a voltage which includes an oscillation component, a developing device for developing the electrostatic latent image with toner into a toner image, the developing device being capable of removing residual toner from the image bearing member, a transfer device for transferring the toner image from the image bearing member onto a transfer material, and a frequency control device for controlling a frequency of the oscillation component so that the frequency is higher when at least a part of such an area of the image bearing member as is going to be a non-image area is charged than when such an area of the image bearing member as is going to be an image area is charged.
摘要:
An image forming apparatus includes an image bearing member for carrying a toner image; a recording material conveyer belt for electrostatically carrying and feeding a recording material; a roller, provided on a side of the recording material conveyer belt not carrying the recording material in a separation position where the recording material is separated from the recording material conveyer belt, for supporting the recording material conveyer belt; a transfer charger for electrostatically transferring the toner image from the image bearing member onto the recording material at a transfer position; a discharge, provided across the recording material conveyer belt from the roller at the separation position, for discharging the recording material upon separation thereof from the recording material conveyer belt; wherein the roller is electrically grounded through an element in which a voltage is generated when the current is supplied thereto.
摘要:
An image forming apparatus includes an image bearing member; recording material carrying member for carrying a recording material; a transfer charging member for transferring a toner image formed on the image bearing member onto the recording material carried on the recording material carrying member; a controller for controlling an electric current supplied from the transfer charger to the recording material carrying member to be a predetermined level; and potential applying device for applying a potential of the same polarity as that of the toner image to a backside of the recording material carrying member prior to transfer operation of the transfer charger.
摘要:
The present invention provides an image forming apparatus comprising an image bearing member for bearing an image thereon, and a transfer device for transferring the image from the image bearing member to a recording material at a transfer station. Wherein a limit value of electric power supplied to the transfer device is changed between a case where an imaged portion of the image bearing member is positioned at the transfer station and a case where a non-imaged portion of the image bearing member is positioned at the transfer station.
摘要:
An image forming apparatus includes an image bearing member for bearing an image, a recording material bearing member for bearing a recording material electrostatically, and a transfer member for transferring the image on the image bearing member electrostatically to the recording material borne by the recording material bearing member by being put into contact with the recording material bearing member, wherein a length of a contact area between the recording material bearing member and the transfer member is less than that of a contact area between the image bearing member and the recording material borne by the recording material bearing member in a conveyance direction of the recording material bearing member, wherein the recording material bearing member has a first layer for bearing the recording material and a second layer in contact with the transfer member in an image transfer, and wherein a surface resistivity of the first layer is lower than a surface resistivity of the second layer.
摘要:
A color filter having excellent optical properties can be produced in high yield using a photo-sensitive composition comprising (a) a resin, (b) one or more pigments, (c) one or more monomers, and (d) a photoinitiator to form a film on a substrate, followed by exposure to light and development using a specific developer containing ##STR1## wherein R.sup.1 is C.sub.1-19 alkyl; and R.sup.2 is C.sub.1-19 alkylene.
摘要:
An image display unit capable of displaying image data page-wise includes: a scanner portion; a display panel for displaying input image data in preview representation; an input condition determiner that compares the image data successively input through the scanner portion, as to input condition and determines whether there is any change in the image data input condition; and a display controller that, when the input condition determiner determines that the input image data has changed in the input condition, makes control such as to display the image data that was determined to have changed in the input condition and the image data input immediately before the image data in question, together on the display panel.
摘要:
Image data in a specific data format is stored in an external storage device, whereas application software for display, editing, and printing of the image data in the specific data format is not stored in the external storage device but transmitted to an e-mail address of a user or to an IP address of a user's computer. This provides a digital multifunction printer which is capable of storing image data in a removable external storage device and which can store image data in the external storage device in such a manner that the image data is stored with a data format specific to the digital multifunction printer while the image data can be processed by other device without dropping security for the stored image data.
摘要:
An image recording device includes a sub-scanning/conveyance device for sub-scanning and conveying an image recording material. An acceleration pickup for measuring acceleration of the sub-scanning/conveyance device is mounted to the sub-scanning/conveyance device and connected to a control section. When the acceleration pickup detects acceleration equal to or greater than a predetermined value, an alarm is turned on via a bus to signal a frame number of the image recording material exposed when vibration equal to or greater than a predetermined value has occurred. Image data of the corresponding image number detected by a hole sensor is inputted from an image processor to an image data storage device and stored therein. When a predetermined exposure ends, the stored image data is transmitted from the image data storage device to a light beam scanning device, and the image recording material is re-exposed in accordance with the image data.
摘要:
A method and apparatus for manufacturing a thick-walled bent pipe capable of manufacturing an elbow material for piping with higher size accuracy with use of a thick-walled pipe material are provided. For this purpose, the manufacturing apparatus includes a lower die (20) including a pair of bottom dies (21, 22) having sliding surfaces (20c, 20c) in a circular arc form; an upper die (10) including an upper guide (11) having a guide surface (11a) in a circular arc form for guiding the lower die (20), and a presser die (12); and a lower guide (30) having slide surfaces (30a, 30a) for placing the bottom dies (21, 22) thereon, and the bottom dies (21, 22) are respectively allowed to rotate while they are facing to each other, by lower end portions (20f, 20f) of the bottom dies (21, 22) respectively abutting to and sliding along the slide surfaces (30a, 30a) at the same time when the sliding surfaces (20c, 20c) respectively abut to and slide along the guide surface (11a) in the circular arc form in connection with descent of the upper die (10).