A winding device for a substantially electrically insulating web material having a winding roller on which the web material can be wound, characterized in that an apparatus exists for transferring an electric charge to the web material on the winding roller, and/or when deflecting to the winding roller, and the apparatus for transferring an electric charge is connected to at least one electrical high-voltage source with a positive or negative polarity.

A paper feed roller including an elastic layer composed of thermosetting polyurethane containing a plasticizer, wherein an amount of the plasticizer is within a range of 10 to 50 pts. mass based on 100 pts. mass of the thermosetting polyurethane, and a surface residual charge on the elastic layer is within a range of 90 to 170 V. The surface residual charge is a value determined by single-point measurement of a surface potential of the elastic layer. The measurement includes rotating the paper feed roller in a circumferential direction, electrifying the surface of the elastic layer with a corotron while rotating the paper feed roller, and measuring the surface potential at a center point on the paper feed roller in a roller axis direction in a position where the paper feed roller is rotated by 90 degrees from a position where the surface of the elastic layer is electrified.

A roller device for guiding a flexible substrate is described. The roller device includes a support surface for contacting the flexible substrate, the support surface having a coating comprising an electronegative polymer. Further, a vacuum processing apparatus for processing a flexible substrate including the roller device and a method of processing a flexible substrate in the vacuum processing apparatus is described.

A medium transport device includes a roller transporting a medium, such as recording paper; a first layer covering a surface of the roller facing the medium; a second layer laminated on the first layer; and convex portions provided between the first layer and the second layer, and the convex portions are formed from inorganic particles. The first layer binds the convex portions to the roller, and the second layer covers the convex portions for protection.

The invention relates to a roll take-up device (110) designed for a) taking up a sheetlike composite (101), and b) rolling up or unrolling or both rolling up and unrolling a roll (102) of the sheetlike composite (101); i) a carrier layer (304), ii) a barrier layer (306) and iii) an inner polymer layer (308); wherein, in the roll (102), at least 10 laminas of the sheetlike composite (101) are overlaid on one another from the inside outwards or vice versa; wherein the laminas respectively have the series of layers (304, 306, 308); wherein one layer (306) of the series of layers of the sheetlike composite (101) is an electrically conductive layer.

A winding device for a substantially electrically insulating web material having a winding roller on which the web material can be wound, characterized in that an apparatus exists for transferring an electric charge to the web material on the winding roller, and/or when deflecting to the winding roller, and the apparatus for transferring an electric charge is connected to at least one electrical high-voltage source with a positive or negative polarity.

The invention relates to a roll take-up device (110) designed for a) taking up a sheetlike composite (101), and b) rolling up or unrolling or both rolling up and unrolling a roll (102) of the sheetlike composite (101); i) a carrier layer (304), ii) a barrier layer (306) and iii) an inner polymer layer (308); wherein, in the roll (102), at least 10 laminas of the sheetlike composite (101) are overlaid on one another from the inside outwards or vice versa; wherein the laminas respectively have the series of layers (304, 306, 308); wherein one layer (306) of the series of layers of the sheetlike composite (101) is an electrically conductive layer;

A printer includes a printhead assembly which applies an ink composition to print media to form printed media. A dryer, downstream of the printhead assembly, at least partially dries the printed media. A transport mechanism conveys the printed media in a downstream direction between the printhead assembly and a dryer and between the dryer and an output device. The transport mechanism includes at least one electric field-generating transport member including a drive roller which is rotated about an axis of rotation to advance the print media in the downstream direction. The drive roller includes spaced electrical conductors, first portions of the electrical conductors being sequentially brought into proximity with the print media as the roller is rotated. A commutator is positioned to sequentially contact and apply a voltage to second portions of only a subset of the conductors that are in proximity with the print media.

A medium transport device includes a roller transporting a medium, such as recording paper; a first layer covering a surface of the roller facing the medium; a second layer laminated on the first layer; and convex portions provided between the first layer and the second layer, and the convex portions are formed from inorganic particles. The first layer binds the convex portions to the roller, and the second layer covers the convex portions for protection.

A sheet conveyance apparatus includes a housing, a rotationally driven conductive shaft, a conveyance roller, a drive transmission unit, a conductive bearing member, a conductive discharging member, a cover member, and a conductive grounding member. The bearing member rotatably supports one end side of a shaft in a sheet width direction. The conductive discharging member is disposed in the openings. The discharging member discharges sheets by contacting the sheets. The cover member is secured to the sidewall along the one end side of the housing in the sheet width direction. The cover member includes a conductive grounding portion for electrical grounding. The conductive grounding member contacts the bearing member and the one end side of the discharging member along the sheet width direction. The grounding member conducts the bearing member and the discharging member to the grounding portion of the cover member.