Abstract:
Methods of altering charge on a dielectric material involve application of an at least weakly conductive liquid to at least a portion of the dielectric material. The liquid is then at least partially removed from the dielectric material leaving a substantially uniform electrostatic charge on at least the portion of the dielectric material. Some methods provide a dielectric material that is both net neutral and completely neutral. Other methods generate a charge pattern that is used for subsequent processing.
Abstract:
Disclosed is a device for inserting a continuous tape (12). A system comprises a first module (60) and a second module (62). Two traction means (66, 68) can be connected to one another at the interface (64) and can be detached again. A gripper device (78) transports a continuous tape from the input section (70) of the first module (60) to the output section (72) of the second module (62) when the traction means (66, 68) are connected. The invention also relates to a combined monitoring device (160).
Abstract:
A compact full-color media web electrographic printer and method of using the printer includes an automatic web feeding and cutting registration apparatus for producing closely spaced printouts. The registration system includes a registration roll pair (18, 19), a feed roll pair (12, 13) for feeding the web to the nip of the registration roll pair, a sensor system of feedback sensors (14, 17, 20, 40) for sensing the media web, a cutter (63) for cutting the media web, and a processor for receiving the sensor feedback and accurately controlling the feeding and cutting of the media web so as to produce the desired spaced printouts.
Abstract:
When a roll paper unit (200) is incorporated into an image formation apparatus, a second outlet guide member (92) is turned around a pivot (92a) in the direction of an arrow G, i.e., moved from a position of solid lines to a position of two-dot chain lines, a rear end portion (92b) of this second outlet guide member (92) pressing down a front end portion (80c) of a guide member (80) to cause the guide member (80) to be turned around a central shaft (80d) in the direction of an arrow H, i.e., moved from a position of solid lines to a position of two-dot chain line. Consequently, a path extending in the direction of an arrow C is closed, while a path extending in the direction of an arrow F is opened, the roll paper (72) being transferred in the paper feed direction. When the roll paper unit (200) is drawn out, the second outlet guide member (92) and the guide member (80) are turned in the directions opposite to those mentioned above. Consequently, the path extending in the direction of the arrow F is closed, while the path extending in the direction of the arrow C is opened, the roll paper (72) being transferred in the paper discharge direction.
Abstract:
A device for transporting print media (12) in printing or copying apparatus has rotary transport elements (36) arranged in a print media transport channel at a distance from the print medium (12) that act as feeding aids for an automatic paper feeding device. Friction elements (40) designed as striking elements with friction surfaces (41) and arranged at the periphery of the transport elements (36) are bound to the axis bolt of rotation (38) of the transport element (36) so that they can swivel. When the transport elements (36) are rotated, the friction elements (40) are brought by the centrifugal force out of a rest position, against a restoring force, and their friction surfaces (41) are brought into frictional contact with the print medium (12) and transport the same. When the transport element (36) is at a standstill, the friction elements (40) release the print medium (12).
Abstract:
A method is described in which an image is printed onto a main web substrate (103) by transferring the image to the main web substrate (103) via a transfer member (101). A secondary substrate (110) is then engaged with the transfer member (101) to transfer an image from the transfer member to the secondary web substrate. One or more optical parameters of the image on the secondary substrate are determined by an optical sensor (140).
Abstract:
A printing device (100,101) has a first print engine(103, 303, 603, 703), a second print engine (105, 305, 605, 705), and a buffer device (107, 307, 609, 709, 711) disposed between the first (103, 303, 603, 703) and second print engines (105, 305, 605, 705). The buffer (107, 307, 609, 709, 711) is configured to store a variable amount of web substrate (106, 301, 713) received from the first print engine (103, 303, 603, 703) and feed the substrate (106, 301, 713) to the second print engine (105, 305, 605, 705).
Abstract:
When the recording paper on a roll (20) runs out during image formation, the following operations are carried out. When the length of the remaining recording paper is larger than a first reference length long enough to permit the remaining recording paper to be transferred inside and outside of a roll unit RU, this paper is subjected to discharge transfer. When the length of the remaining recording paper is somewhat smaller than the first reference length, the leading end of this paper is projected outward from the roll unit RU. When the length of the remaining recording paper is so much smaller than a second reference length that the remaining recording paper cannot be transferred inside the roll unit RU, the paper is transferred reversely and dropped into the roll unit RU. Thus, the remaining recording paper can be taken out easily and excellently at all times.
Abstract:
The invention relates to a method of controlling the pressure in a compression chamber (10), particularly in a pneumatic braking device for a recording medium (12) in the form of a strip, in which method the actual pressure (Ip) in the compression chamber is set in relation to the actual angle (Iw) of rotation of a turning valve (14). The actual angle (Iw) of rotation of the turning valve (14) and the actual pressure (Ip) in the compression chamber (10) are recorded. An ideal pressure (Sp) and an ideal angle (Sw) of rotation associated with this ideal pressure (Sp) are predetermined and pressure deviation (Dp) between the actual pressure (Ip) and the ideal pressure (Sp) and also a deviation (Dp) of the angle of rotation between the actual angle (Iw) of rotation and the ideal angle (Sw) are fixed. Setting means (40) adjusts the angle of rotation on the turning valve (14) firstly in relation to the deviation (Dw) of the angle of rotation and subsequently in relation to the pressure deviation (Dp). The invention also relates to a sensor (22, 22', 22") for measuring the angle of rotation.
Abstract:
The invention relates to an arrangement for the mechanical coupling of units, e.g. a printing mechanism (15) of an electrophotographic printing or copying device, with other units (23, 24) in axially parallel alignment with the conveyor path of a recording substrate (12). A basic unit (28), especially one containing the printing mechanism (15), is jointedly coupled via a cross-member (30), especially consisting of two individual cross-member components (301, 302), to a bearer (32) arranged vertically in relation to a device frame (1). In turn, the units (23 or 24) are linked in paired recesses (e.g. C1, C2) axially parallel in relation to the basic unit.