Abstract: The present application generally relates to a public address system, and more particularly, to a paging relay controller within the public address system and methods thereof. In an illustrative embodiment, the paging relay is configured through a dynamic host configuration protocol server. After configuration, the paging relay can process incoming network streams. The paging relay can receive an incoming network stream from a source typically in the form of a unicast stream. The stream can be transported over a wide area network that commonly does not support multicast transmissions. After receiving the unicast stream, the paging relay converts the unicast stream into a multicast stream. The paging relay then rebroadcasts the multicast stream over a local area network to local subscribing devices. In one embodiment, the paging relay can also convert the unicast stream to line level audio for transmission to an analog system via the RCA phono port.

Abstract: The present application generally relates to a public address system, and more particularly, to a paging relay controller within the public address system and methods thereof. In an illustrative embodiment, the paging relay is configured through a dynamic host configuration protocol server. After configuration, the paging relay can process incoming network streams. The paging relay can receive an incoming network stream from a source typically in the form of a unicast stream. The stream can be transported over a wide area network that commonly does not support multicast transmissions. After receiving the unicast stream, the paging relay converts the unicast stream into a multicast stream. The paging relay then rebroadcasts the multicast stream over a local area network to local subscribing devices. Other implementations having similar concepts are described herein.

Abstract: The present application generally relates to a public address system, and more particularly, to a paging relay controller within the public address system and methods thereof. In an illustrative embodiment, the paging relay is configured through a dynamic host configuration protocol server. After configuration, the paging relay can process incoming network streams. The paging relay can receive an incoming network stream from a source typically in the form of a unicast stream. The stream can be transported over a wide area network that commonly does not support multicast transmissions. After receiving the unicast stream, the paging relay converts the unicast stream into a multicast stream. The paging relay then rebroadcasts the multicast stream over a local area network to local subscribing devices. In one embodiment, the paging relay can also convert the unicast stream to line level audio for transmission to an analog system via the RCA phono port.

Abstract: A web cleaning system for a fuser system includes a web which is biased into contact with a rotating cylindrical member, such as a fuser roll, as the fuser roll is rotated about its axis of rotation. A lateral displacement system displaces the web, relative to the cylindrical member, in a direction parallel to the axis of rotation of the cylindrical member. In this way, regions of the web which have become contaminated with collected toner are shifted laterally, thus avoiding oversaturation of the web.

Abstract: A fuser apparatus includes first and second rolls rotatably mounted parallel to and in contact with each other to form a nip through which print media with a toner image thereon is passed to fuse the image to the print media. A cleaning system is provided for cleaning one of the rolls, such as the fuser roll. The cleaning system includes a rotatably mounted cleaning roll, an outer surface thereof including a pile. A flicker bar is arranged to detach toner from the pile.

Abstract: A fusing apparatus includes a fuser roll and a pressure roll which define a nip therebetween. Two heating elements heat the fuser roll. One of the heating elements is configured for heating a first portion of the fuser roll while a second of the heating elements is configured for heating a second portion of the fuser roll. The second portion of the fuser roll is axially spaced from the first portion. A temperature sensing system monitors a temperature of the fuser roll in a first location and monitors a temperature of the fuser roll in a second location which is axially spaced from the first location. A control system determines an amount of power to supply to the first heating element as a function of the monitored temperatures at the first and second axially spaced locations and determines an amount of power to supply to the second heating element as a function of the monitored temperatures at the first and second axially spaced locations.

Abstract: A web cleaning system for a fuser system includes a web which is biased into contact with a rotating cylindrical member, such as a fuser roll, as the fuser roll is rotated about its axis of rotation. A lateral displacement system displaces the web, relative to the cylindrical member, in a direction parallel to the axis of rotation of the cylindrical member. In this way, regions of the web which have become contaminated with collected toner are shifted laterally, thus avoiding oversaturation of the web.

Abstract: A fuser apparatus includes first and second rolls rotatably mounted parallel to an in contact with each other to form a nip through which print media with a toner image thereon is passed to fuse the image to the print media. A cleaning system is provided for cleaning one of the rolls, such as the fuser roll. The cleaning system includes a rotatably mounted cleaning roll, an outer surface thereof including a pile. A flicker bar is arranged to detach toner from the pile.

Abstract: A fusing apparatus includes a fuser roll and a pressure roll which define a nip therebetween. Two heating elements heat the fuser roll. One of the heating elements is configured for heating a first portion of the fuser roll while a second of the heating elements is configured for heating a second portion of the fuser roll. The second portion of the fuser roll is axially spaced from the first portion. A temperature sensing system monitors a temperature of the fuser roll in a first location and monitors a temperature of the fuser roll in a second location which is axially spaced from the first location. A control system determines an amount of power to supply to the first heating element as a function of the monitored temperatures at the first and second axially spaced locations and determines an amount of power to supply to the second heating element as a function of the monitored temperatures at the first and second axially spaced locations.

Abstract: A fuser member includes a metallic core cylinder with an axially extending slot defined in an end region of the core cylinder. An integral flange is formed from material from the slot. The flange extends generally radially from the core cylinder adjacent the slot. A drive gear includes a key. The slot receives the key for rotation of the core cylinder.

Abstract: In a fusing apparatus, such as used in xerography, two rolls form a nip therebetween. A guide member is positionable to direct a sheet approaching the nip to enter the nip at an angle so that an arc or buckle is created in the sheet between a marking station and the nip. The arc or buckle is helpful in avoiding the transfer of mechanical energy from the fusing apparatus to the marking station. As the trailing edge of the sheet exits the marking station, the guide member is positioned to straighten the sheet.

Abstract: In a fusing apparatus, such as used in xerography, two rolls form a nip therebetween. A guide member is positionable to direct a sheet approaching the nip to enter the nip at an angle so that an arc or buckle is crated in the sheet between a marking station and the nip. The arc or buckle is helpful in avoiding the transfer of mechanical energy from the fusing apparatus to the marking station. As the trail edge of the sheet exits the marking station, the guide member is positioned to straighten the sheet.

Abstract: In a document handler associated with a scanner, such as for a digital copier or facsimile machine, an image-bearing sheet is moved over a window, through which the image is recorded by a photosensitive chip. When a spot of dirt attaches to the window, a streak results in the image data. This streaking problem is minimized by having the scan line viewed by the photosensitive chip move a small distance within the window of the document handler, so that any spot on the window will not be repeatedly exposed by the photosensitive chip.

Abstract: In a xerographic printing apparatus, during the transfer step wherein marking material is electrostatically transferred from the photoreceptor to the print sheet by a transfer corotron and the sheet is then detached from the photoreceptor by a detack corotron, the bias associated with the transfer corotron is maintained at a constant value while the bias associated with the detack corotron is progressively decreased to approximately zero as the print sheet moves through the transfer zone.

Abstract: When powering up a xerographic fusing apparatus with two parallel lamps, power is applied to each lamp in a stair-step fashion, in which incremental increases in applied power for each lamp are staggered in time. This feature contributes to desirable anti-flicker effects of the whole apparatus.

Abstract: In a xerographic printing apparatus, during the transfer step wherein marking material is electrostatically transferred from the photoreceptor to the print sheet by a transfer corotron and the sheet is then detached from the photoreceptor by a detack corotron, the bias associated with the transfer corotron is maintained at a constant value while the bias associated with the detack corotron is progressively decreased to approximately zero as the print sheet moves through the transfer zone.

Abstract: A fusing apparatus for xerographic printing includes a fuser roll with two parallel lamps, or heating elements, therein. At power-up, power is applied to each lamp in a stair-step fashion, in which incremental increases in applied power for each lamp are staggered in time. Also during power-up, the lamps are connected in series, but the series connection is removed for a running condition. These features contribute to desirable anti-flicker effects of the whole apparatus.

Abstract: A fusing apparatus for xerographic printing includes a fuser roll with two parallel lamps, or heating elements, therein. Each lamp defines a relatively hot end and a relatively cold end when electrical power is applied. The two lamps are disposed so that a hot end of one lamp is adjacent to the cold end of the other lamp. At power-up, power is applied to each lamp in a stair-step fashion, in which incremental increases in applied power for each lamp are staggered in time. Also during power-up, the lamps are connected in series, but the series connection is removed for a running condition. These features contribute to desirable anti-flicker effects of the whole apparatus.

Abstract: In a xerographic printing apparatus, during the transfer step wherein marking material is electrostatically transferred from the photoreceptor to the print sheet and the sheet is then detached from the photoreceptor, a DC bias starts at a high absolute value when the lead edge of the sheet is proximate the photoreceptor, and is then decreased as different portions of the sheet pass the photoreceptor. The DC bias can be decreased to zero in the course of the transfer step, or can change sign by the time the trail edge is transferred.

Abstract: A sheet stripping device for stripping copy sheets from an arcuate imaging surface, including a support element and an electrically conductive stripping element coupled to an electrically biasing source. An electrical bias is applied to the stripping elements or fingers to suppress the build-up of toner on the stripping element so that large concentrations of toner are eliminated and minimal residue is left on the fingers as a thin film for preventing background contamination of the copy sheet.