摘要:
The invention concerns an electrostatic copying machine (10) which includes -means for moving a patterned member (26) along the top wall (16) of the copying machine (10) in synchronism with the movement of said rotary electrophotographic member (250) comprising a pair of engaged rollers (316,318) having a nip, the top wall 16 having a window (190) against which the patterned member (26) is adapted to be pressed and moved by said engaged rollers (316, 318) to be progressively illuminated and projected, one of said rollers being coupled to be driven by drive means, means for applying power to said electric motor (50) to start rotation of the rollers (316, 318) and rotary electrophotographic member (250) simultaneously, the engaged rollers (316,318) being disposed at the top of the housing whereby a member (26) may be pressed into said nip while the motor (50) is not energized and neither the electrophotographic member (250) nor the one of said engaged rollers (316, 318) is rotating, at which time the electric motorway (50) may be energized manually causing synchronized movement of the patterned members (26) and the electrophotographic member (250).
摘要:
An imaging system for an electrostatic copier (10) which includes a housing having a top wall (18), a base (128), a front wall (14), a rear end wall and opposite side walls (18, 20) the side walls (18, 20) including inner support plates (162); the imaging system having a flexible electrophotographic belt; rollers supporting the belt in a generally horizontally extending elongate tensioned oval loop; an electric motor supported on one of the inner support plates (162); the motor and one roller being coupled for rotating the roller to move the loop in a predetermined forward direction past a series of functional stations; the belt and rollers mounted on a framework between inner support plates (242) within the housing, the coupling between the one roller and the motor being separable; the belt, the inner support plate (162) having a passageway for the belt assembly (60) and the outer side panel (18) being swingable away from the adjacent support plate (242) to enable removal of the belt assembly (60) through the passageway and, belt assembly (60) being re- mountable by reversing the removal procedure.
摘要:
An imaging device (10) comprises an array of photosensitive reading elements (R 2 ) and an array of associated marking elements (S), one for each reading element. Each reading element (R 21 is linked to its associated marking element (S), by way of a circuit which comprises thin-film transistor amplifiers (22). In this way the reading elements, marking elements and amplifier circuits may be carried by a compact and inexpensive common structure (21). The imaging device may be used for copying documents, as well as for reading documents and transmitting the information to another of the imaging devices, and for producing a record from information received from another of the devices.
摘要:
A photoconductive imaging belt (20) is entrained for movement round a guide frame (21). The frame comprises two circular segments (68) and (75) and planar surfaces (77) and (78). Between the planar surfaces and segments are rollers (76) and (80), of which the second is driven. A belt tensioning device (60) comprises a pad (72) on a pivotal arm (70) mounted for movement through the gap between the segments from a retracted position within the frame to belt tensioning position as shown.
摘要:
A nonimpact printer, for example, a color printer, of the type having an endless movable web (1) on which two or more images are formed by an electronic printhead (8) and transferred in registration provides reliable registration using perforations along an edge of the web. A first sensing means, for example, a printhead sprocket (31), senses an edge of the perforations and controls the printhead. A second sensing means, for example, a transfer sprocket (32) also senses an edge of the perforations and controls transfer. Error in image formation because of error in perforation formation is substantially corrected by using the same perforation for transfer that is used for printing.
摘要:
A multi-mode apparatus (10) for electrophotographically reproducing electronically generated information or information obtained optically from a document. This apparatus comprises a photoconductive belt (54) mounted for movement about a closed loop path through electrophotographic process stations. A light emitting component (38), located in fixed relation to the photoconductive belt closed loop path, produces light images from electronically generated signals. Further, a mechanism (50), associated with the photoconductive belt, supports a primary charger (78), a lamp (70) and a lens assembly (74) for movement relative to a transparent document-supporting platen (20) of the apparatus. Movement of the photoconductive belt and the supporting mechanism are controlled whereby during optical reproduction, the belt is held stationary while the supporting mechanism is moved with the primary charger activated to charge the belt and expose the belt to a reflected light image of a document on such platen, and on reproduction of electronically generated information, the belt is moved past the stationary supporting mechanism, with the primary charger actuated, and the stationary light emitting component to charge and expose the belt to electronically generated information.