摘要:
A transfer unit includes: an intermediate transfer belt that (i) holds a toner image that has been transferred, at a primary transfer part, from a photoreceptor drum and (ii) rotates to move a surface holding the toner image; and a secondary transfer belt that comes into contact, at a secondary transfer part, with the intermediate transfer belt. The transfer unit (i) transfers the toner image from the intermediate transfer belt to a sheet conveyed to the secondary transfer part and (ii) includes an intermediate transfer belt cleaning unit that removes and collects toner from the toner image holding surface of the intermediate transfer belt. The transfer unit also includes secondary transfer power source for sequentially applying, to the secondary transfer belt, (i) a first voltage for generating an electric field that transfers normally-charged toner from the secondary transfer belt to the intermediate transfer belt and (ii) a second voltage for generating an electric field that transfers oppositely-charged toner from the secondary transfer belt to the intermediate transfer belt. Therefore, the toner from the secondary transfer belt can be suitably transferred to an intermediate transfer belt, and the secondary transfer belt can be desirably cleaned.
摘要:
A transfer unit includes: an intermediate transfer belt that (i) holds a toner image that has been transferred from a photoreceptor drum and (ii) moves a surface holding the toner image; and a secondary transfer belt that comes into contact with the intermediate transfer belt. The transfer unit (i) transfers the toner image from the intermediate transfer belt to a sheet conveyed to the secondary transfer part and (ii) includes a cleaning unit that removes and collects toner from the surface of the intermediate transfer belt. The transfer unit also includes a power source for sequentially applying, to the secondary transfer belt, (i) a first voltage for generating an electric field that transfers normally-charged toner from the secondary transfer belt to the intermediate transfer belt and (ii) a second voltage for generating an electric field that transfers oppositely-charged toner from the secondary transfer belt to the intermediate transfer belt.
摘要:
A transfer belt device includes an endless transfer belt that is tightly stretched by a plurality of rollers and forms a transport path where a recording medium or a developer image is transported facing a monochrome image bearing member and a plurality of color image bearing members arranged in parallel along a fixed direction. In the apparatus, a first transfer unit having a first linking member in which a monochrome-image transfer member is supported that transfers a developer image formed on the monochrome image bearing member onto a recording medium or an outer peripheral surface of the belt, and a second transfer unit having a second linking member in which a plurality of color-image transfer members are supported that transfer developer images formed on the respective color image bearing members onto a recording medium or an outer peripheral surface of the belt, are linked via the first and second linking members.
摘要:
A transfer belt device includes an endless transfer belt that is tightly stretched by a plurality of rollers and forms a transport path where a recording medium or a developer image is transported facing a monochrome image bearing member and a plurality of color image bearing members arranged in parallel along a fixed direction. In the apparatus, a first transfer unit having a first linking member in which a monochrome-image transfer member is supported that transfers a developer image formed on the monochrome image bearing member onto a recording medium or an outer peripheral surface of the belt, and a second transfer unit having a second linking member in which a plurality of color-image transfer members are supported that transfer developer images formed on the respective color image bearing members onto a recording medium or an outer peripheral surface of the belt, are linked via the first and second linking members.
摘要:
An image forming apparatus includes a pair of optical sensing devices for monochrome image forming and full-color image forming which are disposed at the rear of the image forming apparatus and a pair of generally L-shaped light shielding members for monochrome image forming and full-color image forming which are mounted swingably on a rear side of an image transfer unit with one end of each light shielding member attached to one of two sliding members. When each of the sliding members moves back and forth, the light shielding member for monochrome image forming or full-color image forming, whichever applicable, swings and the relevant optical sensing device detects the other end of the light shielding member.
摘要:
A transfer device has primary transfer rollers supported so as to be upwardly and downwardly movable within a path of movement and opposed to respective of photosensitive drums across a portion of an intermediate transfer belt. There are also provided a slide member for full-color image formation and a slide member for monochromatic image formation, which are capable of reciprocation in a horizontal direction. The transfer device includes roller lifting means each L-shaped and each having one end supporting an associated one of the transfer rollers for rotation and another end engaging an associated one of the slide members, and first and second coaxial rotating cams. The transfer device is capable of switching between three paths of movement of the intermediate transfer belt selectively by the first and second rotating cams rotating together.
摘要:
An image forming apparatus includes a pair of optical sensing devices for monochrome image forming and full-color image forming which are disposed at the rear of the image forming apparatus and a pair of generally L-shaped light shielding members for monochrome image forming and full-color image forming which are mounted swingably on a rear side of an image transfer unit with one end of each light shielding member attached to one of two sliding members. When each of the sliding members moves back and forth, the light shielding member for monochrome image forming or full-color image forming, whichever applicable, swings and the relevant optical sensing device detects the other end of the light shielding member.
摘要:
A transfer device has primary transfer rollers supported so as to be upwardly and downwardly movable within a path of movement and opposed to respective of photosensitive drums across a portion of an intermediate transfer belt. There are also provided a slide member for full-color image formation and a slide member for monochromatic image formation, which are capable of reciprocation in a horizontal direction. The transfer device includes roller lifting means each L-shaped and each having one end supporting an associated one of the transfer rollers for rotation and another end engaging an associated one of the slide members, and first and second coaxial rotating cams. The transfer device is capable of switching between three paths of movement of the intermediate transfer belt selectively by the first and second rotating cams rotating together.
摘要:
In an MFP having various and many functions and part of the functions introduced as optional functions, in order to appropriately introduce an optional function related to a frequently used function, a CPU of the MFP executes a program including the steps of; receiving and storing information of an optional function recommended for a standard function used frequently, from an FSS server computer (S3110); when a function is selected by a logged-in user (YES at S3020), determining whether or not any recommended optional function is stored (S3030); when a recommended optional function is stored (YES at S3030), displaying an image recommending the optional function related to the function selected by the user (S3050); and transmitting, as a job completing process, selected functions to the FSS server computer (S3080).
摘要:
Semiconductor laser assembly 1 is provided with semiconductor laser device 6 and heat dissipation member 24. Semiconductor laser device 6 includes semiconductor laser element 15, lead-frame 11, lower and upper enclosures 18 and 19 and plate-like spring 21 connected to lead-frame 11. Semiconductor laser element 15 is mounted on lead-frame 11 through sub-mounting member 16. Lower and upper enclosures 18 and 19 have an opening through which laser beams from semiconductor laser element 15 are emitted. Plate-like spring 21 is connected to lead-frame 11 and has wing and holding portions 22 and 23. Holding portion 23 is a C-character in cross section to put lower and upper enclosures 18 and 19 together. Heat dissipation member 24 has inside walls to define perforation 25, so that wing portions 22 of plate-like spring 21 pushes semiconductor laser device 6 against the inside walls of heat dissipation member 24 when the semiconductor laser device 6 is set in perforation 25.