Abstract: An arrangement of an isolating support board having conductive surfaces between busbars, the support board having a portion projecting beyond the busbars in the transverse direction, and filter capacitors connected to the conductive surfaces being fastened on the projecting portion.

Abstract: A power supply apparatus is shown that comprises several identical individual power packs connected in parallel so as to be decoupled from one another. The individual power packs produce coupled output voltages, of which one is adjusted by a pulse duty control and the others are corrected in linear fashion. By means of a correction such that a comparison of target/actual output voltage values is done without, the mean value of all the actual current values is formed, and a mistuning of a respective target/actual current comparison is carried out, a constantly uniform current distribution to the individual power packs is achieved, with a low power loss, fault tolerance via possible redundancy, and the possibility of "hot board replacement.

Abstract: For a fast and simple mounting and unmounting of guide rails for electrical components of electrical devices in guide rails, the guide rail set is provided, which is engaged in the frame parts by being placed against and axially displaced in the frame parts of the electrical device. An unmounting occurs, among other things, by pressing a spring tongue responsible for the engagement back to release the rail for movement for unmounting.

Abstract: The invention relates to a sheet-extracting device with a cassette for receiving a stack of sheets, and to a method of controlling the pressing force of the stack of sheets against the extracting device. The latter has extracting rollers (16) which are arranged on a floating shaft (34). For its part, the floating shaft (34) is centrally connected in a rotationally fixed manner to a drive shaft (18) passing through it. The drive shaft (18) is mounted, by one end (20), in a frame-mounted bearing (21) and, by its other end (62), in a displaceable bearing (64). Acting on the bearing (64) is a force sensor (70, 74, 76) which is intended for determining the pressing force of the stack of sheets (12) against the extracting rollers (16). The pressing force is controlled such that it always moves within a narrow middle range between a minimum and a maximum possible value.

Abstract: A printer or copier has a photoconductive drum which is to be cleaned of residual toner after printing by a brush as a principal cleaner and by a stripper element of an abrasive-resistant film as an auxiliary cleaner. The stripper element of plastic film presses against the photoconductive drum at an angle to remove substances adhering to the drum. A pivot mounting may be provided for the stripper and a transverse moving device for moving the stripper may also be provided.

Abstract: A protective mutex switch is used in data processing installations for control of execution paths within processes. Library subroutines are protected by shell subroutines with the original name and thereby, establish the synchronization of processes using the libraries.

Abstract: A multiprocessor system has a plurality of serial system buses arranged in parallel to which is connected a large number of system components (PSK1, PSK, SSK). The system components (PSK1, PSKm, SSK) are processor system components (PSK1, PSKm) having cache memories and memory system components. Every system component (PSK1, PSKm, SSK) is connected to every serial system bus. The processor system components (PSK1, PSKm) have the capability for maintaining the consistency of the contents of the cache memories for every serial high-speed bus (SB1, SBn-1, SBn).

Abstract: A storage device (SP) which is used for the sequential storage and reading out of a given amount of data. To this end it contains a memory (RAM) which can be read and written into in parallel and a storage control unit (CON) which ensures that storage areas whose data have previously been read out at least once is written into sequentially and successively with a default safety clearance. In a special configuration, an input interface (SPU) and an output interface (PSU) are arranged upstream and downstream, respectively, of the memory (RAM). These interfaces accept and transfer the data serially outwards and in parallel to the memory (RAM), respectively.

Abstract: An arrangement for the flexible design of a mounting rack is provided. A mounting panel is provided which accommodates partial-height modules as opposed to full-height modules. The mounting panel is connected to the rear wall of the rack and includes at least one guide rail for supporting the partial-height modules and securing the partial-height modules. A plurality of mounting panels may be disposed next to each other or a mounting panel may be disposed next to a full-height module.

Abstract: A ventilation system for a cabinet, such as a cabinet containing heat-producing components of a data processing system, those components being arranged stacked in the cabinet in tower fashion, has four identical fan units for drawing air over the components and discharging the air from the cabinet. The fan units are disposed at mid-height in the cabinet, and are divided into two pairs. The fan units in each pair have their respective air intake directions facing toward each other. The fan units of one pair are disposed directly one above the other, and the fan units of the other pair are disposed a distance apart, forming a horizontal air duct therebetween. Partitions are disposed in the cabinet for causing the fan units in the first pair to discharge air into the duct formed between the fan units of the other pair, the duct conducting the air to an exterior of the cabinet. The partitions cause the fan units of the other pair to discharge air in a direction out of the cabinet.

Abstract: A printer for selectively printing on one or both sides of a web-shaped recording medium includes a paper turn-over apparatus in the paper conveying channel. The turn-over apparatus is a removable unit and can be changed from a turn-over operation for two sided printing to a parallel conveyance for one sided printing of two recording mediums. A conveyor that moves the recording medium through the printer has an adjustable width to adapt to different recording medium widths. The conveyor includes a return which returns the recording medium to the turn-over apparatus after being printed on one side. The return includes a traction roller pair and a lever to swivel one of the rollers in and out. A connecting channel leads from the traction rollers and includes guide baffles. Conveyor rollers are arranged along the connecting channel at less than the spacing of the folds in the folded recording medium.

Abstract: A printing station includes pins for engaging into edge perforations of continuous paper. The pins are mounted on a toothed belt at the gaps between the belt teeth. A two part pin mounting has a portion engaged between the teeth of the belt.

Abstract: An electrophotographic printer device for both-sided printing of a tape-shaped, narrow recording medium (10) and for single-sided printing of a wide recording medium or a plurality of parallel, narrow recording media (10/1,10/2,10/3) contains a printer module that is designed for printing recording media differing in width. A delivery module and a turn-over module (28) are removably arranged in the printer module, the narrow recording medium (10) being turned over after the printing of the front side and being reconducted through the printer module for printing the back side via said delivery module and turn-over module.

Abstract: The invention relates to a PC-based electronic control unit 10 with a mother board 20 and an additional printed circuit board 38, whose connection plugs are accessible through apertures, arranged in parallel rows, in a housing wall 18. Between these rows there is a further row of apertures for 134,150,154 connection plugs 34,50,54 which may be provided on the mother board 20 or on the additional printed circuit board 38 or else on daughter boards 28 which can be plugged onto one of the mother board 20 or the additional printed circuit board 38. A connector 56 for receiving a memory card 60 is provided on the mother board 20. A plug 62 is engageable with the memory card and the plug cable 64 is passed through an opening 66 in the housing wall 18.

Abstract: An electrographic printer device is designed for printing tape-shaped recording media (10) with different tape widths in different operating modes such as single-color and multi-color simplex printing, single-color and multi-color duplex printing and for simultaneous printing of two recording medium webs in parallel operation. It comprises a module-like device structure with a printer module having a means for generating toner images arranged therein. A single fixing station (18) is arranged above this means. Via a deflection means (28), the recording medium (10) is supplied in single-color or multi-color duplex mode to a return channel (38) that contains a turn-over station (30).

Abstract: In order to control an energy-saving state of a cathode screen (M) by a control device (PC) connected thereto via a standard interface (SS) for its operation without the individual devices' being restricted to use in an arrangement with instruments tuned to one another relatively to the control of the energy-saving state, there are means for transmission, independent of the function of the standard interface (SS), of information (SB) controlling the energy-saving state of the cathode screen (M) in coded form between the control device and the cathode screen (PC and M).

Abstract: A threaded rod is fitted to a plug-in assembly which can be inserted into a mounting rack, which threaded rod is aligned in the insertion direction and becomes operatively connected to a motor-driven threaded nut during insertion. The first thread pitches are designed such that the rod and nut latch on one another.

Abstract: In order to control fans, which are arranged for example in power supplies for cooling the components arranged there, a method and a circuit arrangement are proposed which, on the basis of control pulses which are derived from the input current of the fan, effect the control in such a way that the control pulses are re-shaped into monostable pulses and are fed, via an asymmetrical resistance circuit for charging and discharging, to a storage component whose charge state is a measure for the control of the fan.

Abstract: Planar transductor consisting of one or more rectangular ferrite cores having a rectangular passage through which a metallic section of rectangular cross section is guided, in particular for the secondary control of a power supply unit.

Abstract: Cooling and screening device for integrated circuits, have a metal plate (26) having integrally formed cooling projections (28) and having bores (34) extending from the upper side and bottom side of the metal plate (26). Inserted into these bores (34) are contact pins (39) whose free ends form soldering tips (38) which are intended for soldering into plated-through bores (40) of a printed circuit board (20).