| Patent application number | Description | Published |
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| 20090003896 | METHOD AND APPARATUS FOR ENHANCED SHEET STRIPPING - An enhanced sheet stripping method and apparatus for stripping toner image carrying copy sheets from a surface of a moving heated fusing member forming a fusing nip. The apparatus includes (a) a moving assembly for moving a cut sheet towards the fusing nip; (b) a sheet curling device positioned upstream of the fusing nip relative to movement of the cut sheet for inducing a desired pre-curl in the cut sheet before the cut sheet enters the fusing nip; and (c) a sheet stripping device positioned downstream of the fusing nip for stripping the cut sheet from contact with the surface of the moving heated fusing member as the cut sheet exits the fusing nip. The method includes inducing a desired curl in the cut sheet before the cut sheet enters the fusing nip and enhanced stripping the cut sheet from contact with the surface of the fuser roll as the cut sheet exits the fusing nip. | 01-01-2009 |
| 20090087234 | ENHANCED FUSER STRIPPING SYSTEM - An improved fuser includes a fuser member, a pressure member that forms a nip with the fuser member through which copy sheets pass to have images fused thereon and an air knife to assist in peeling copy sheets from the fuser member. The air knife has a device connected to it that blocks entrained airflow between the fuser and air knife to reduce fuser cooling and power loss. | 04-02-2009 |
| 20090110415 | CONTROL TO DETECT AIR KNIFE BLOCKAGE - A system for detecting stripper device blockage in a printing system is disclosed. The system includes a fusing member which during operation contacts a sheet of printer media to fuse a marking material to the sheet, a stripping device configured to apply pressurized air from an air supply through at least one orifice to the fuser member in order to separate the sheet from the surface and a flow measurement device in line with the air supply which measures air flow. The air flow device will assist in performing an assessment check which may include taking a baseline measurement of air flow and a diagnostic measurement of air flow. In the case where the difference between the diagnostic measurement and baseline measurement is above a different threshold, corrective action may be taken. | 04-30-2009 |
| 20090304419 | ACTIVE ROTATION OF AIR KNIFE FOR INCREASED PERFORMANCE - According to aspects of the embodiments, there is provided a method of optimizing an electro-photographic reproduction machine having a fusing subsystem and an air knife. The methods acquire at least one electro-photographic reproduction machine objective and media characteristic; and the acquired objective and characteristic are used to determine values for the pressurized air emitted from the air knife, the position of the air knife, and the rotation of the air knife relative to a fuse roll in the fusing subsystem. The methods further disclose acquiring the leading edge of the media being stripped and then using the beam strength of the media to assist in stripping the body of the sheet. The air knife can be controlled by a controller or a processor based on determined optimization parameter values that relate to objectives and media characteristics. | 12-10-2009 |
| 20100101716 | APPARATUS FOR FIXING A RADIATION-CURABLE GEL-INK IMAGE ON A SUBSTRATE - An apparatus fixes ink on a substrate, such as in ink-jet printing. A leveling member is positioned to contact an ink-bearing side of the substrate at a nip. A radiation source is positioned to direct radiation to the ink-bearing side of the substrate at the nip, the radiation suitable for curing the ink on the substrate. | 04-29-2010 |
| 20100101717 | DUAL-WEB APPARATUS FOR FIXING A RADIATION-CURABLE GEL-INK IMAGE ON A SUBSTRATE - Radiation-curable (such as UV-curable) ink is used to form an image on a moving substrate. A radiation-transmissive web is attached to the substrate, and then radiation is applied to the web and substrate to cure the ink. The resulting combined substrate and web forms a laminated print. | 04-29-2010 |
| 20100103235 | METHOD AND APPARATUS FOR FIXING A RADIATION-CURABLE GEL-INK IMAGE ON A SUBSTRATE - An apparatus fixes ink on a substrate, such as in ink-jet printing. A leveling member is positioned to contact an ink-bearing side of the substrate at a nip. A radiation source is positioned to direct radiation to the ink-bearing side of the substrate at the nip, the radiation suitable for curing the ink on the substrate. | 04-29-2010 |
| 20100141720 | SPREADING AND LEVELING OF CURABLE GEL INK - A method of leveling a curable phase-change ink on a surface includes printing the curable phase-change ink onto a transfer surface, pressing the transfer surface onto a print substrate with sufficient pressure to level the ink, and exposing the curable phase-change ink to radiation through the transfer surface to cure the phase-change ink. A method for leveling a region of a printed surface includes printing curable phase-change ink onto a surface, pressing a leveling surface onto the print surface to contact a region of the curable phase-change ink, and exposing the curable phase-change ink through the leveling surface to radiation to cure the phase-change ink. | 06-10-2010 |
| 20100231986 | INFRARED HEAT SOURCE TIED TO IMAGE SCANNER FOR TRANSITIONAL DOCUMENT ERASING - A device which can be used to handle documents which can be written to and erased can include a scan head which can output a first light source for scanning a document and a second light source for erasing an image from a printed document. In one embodiment, the device can further include a third light source for writing or imaging a pattern onto a page. | 09-16-2010 |
| 20100233597 | METHOD FOR SCHEDULING TRANSIENT DOCUMENT ERASE CYCLE - A method of handling documents which can be imaged and erased comprises entry of a scheduled time which a device such as a multipurpose imager and eraser has a low probability of being used. At the scheduled time, erasure of transient documents to be erased is initiated. A transient document to be erased is transported from a first transient document storage area to an erasure area where it is erased, then transported to a second, erased transient document storage area. Upon receipt of a user interrupt during the scheduled erasure, any partially erased transient document is returned to the first transient document storage area for later erasure. The method thus allows for more efficient use of equipment resources, for example in an office environment. | 09-16-2010 |
| 20100321740 | SECONDARY SCAN TO ENSURE TRANSIENT DOCUMENT ERASURE - Systems and methods of ensuring the erasure of transient documents are disclosed. The systems and methods include an imaging device that sends a transient document with a pre-printed image into an erase cycle to attempt to remove the image from the document. After the erase cycle, a scanner scans the transient document and converts the transient document into a digital image. A processor compares bit depths of individual bits of the digital image to a bit depth threshold. Depending on the comparison and a number of completed erase cycles, the transient document enters an additional erase cycle, completes as sufficiently erased, or is rejected as not sufficiently erased. | 12-23-2010 |
| 20110045186 | Polyhedral Oligomeric Silsesquioxane Image Conditioning Coating - A contact leveling surface for an ink jet imaging member including a coating disposed on a contact leveling substrate, wherein the coating includes a fluoroalkyl-substituted polyhedral oligomeric silsesquioxane. In embodiments, the contact leveling surface is for an ink jet imaging member that jets a phase change ink, a gel ink, a curable phase change ink, or a curable gel ink directly to a final image receiving substrate such as a direct to paper imaging device. | 02-24-2011 |
| 20110079735 | PEN SPECIFIC FOR ERASABLE MEDIA USAGE - Exemplary embodiments provide materials and methods for a pen that can include a writing end for writing an image on an erasable medium and an erasing end for locally erasing an image from the erasable medium. | 04-07-2011 |
| 20110116110 | SHOW-THROUGH MEASUREMENT SYSTEM AND METHOD FOR INKS ON MEDIA - Systems and methods of measuring an amount of show-through in a printed document are disclosed. The systems and methods include an imaging device that scans a back side of the printed document and scans a front side of the printed document with a blank document disposed thereon. The imaging device produces bitmaps related to the scans and calculates bit depths associated with the bitmaps. A difference array is calculated based on the differences between the bitmaps of the back side and front side scans, and the average value and standard deviation of the difference array is calculated. The amount of show-through of the document is measured based on a formula with the calculated average and standard deviation. | 05-19-2011 |
| 20110122210 | Image Conditioning Coating - A contact leveling surface for an ink jet imaging member comprising a low adhesion coating, wherein when the low adhesion coating is disposed on a contact leveling surface, jetted drops of ultra-violet gel ink exhibit a low sliding angle with the contact leveling surface, wherein the low sliding angle is less than about 1° to less than about 30°. | 05-26-2011 |
