Abstract:
A transfer printing station is disclosed for an electrographic printing or copying machine with two print medium webs (E1, E2) guided close to each other on a paper supporting saddle and provided with marginal perforations. A conveyor transports in parallel the print medium webs (E1, E2) at least in the area of a paper supporting saddle. Motor-driven toothed belts (26) associated with the marginal perforations of the print medium webs (E1, E2) have feeding pins (32) centrally mounted on their outer peripheral surface by means of clamps. The feeding pins (32) have a collar (33) with guiding surfaces and a tapering head part (34).
Abstract:
An electrographic printing device is designed to print strip substrates (10) of different widths by various processes, like monochrome and multi-coloured duplex printing and for the simultaneous printing of two substrate webs. It is of modular construction with a printing module with a device therein generating toner images. Above the device there is a single fixing station (18). The substrates (10) is taken via a deflector (28) in mono or polychromatic duplex operation to a return channel (38) containing a reversing station (30).
Abstract:
The description relates to a circuit arrangement with at least one circuit unit (20) containing several clock-controlled elementary memories (22), the clock inputs CLK of which are connected to a shared clock line TL. The clock signals Ts1-Ts7 going in the direction of data flow, to the clock inputs CLK of the elementary memories (22) are at least partly staggered in time so that any changes in the state of the relevant elementary memories (22) can be triggered at different times.
Abstract:
In an arrangement for the flexible configuration of a subrack, a carrier plate is used for modules of a partial height instead of modules of full height and in turn provides guide rails for the modules of a partial height.
Abstract:
The invention concerns a combined cash register (14) and scales (11) with a common customer display (12). The electronic system of the scales only accepts those display data which are compatible with the current weighing operation.
Abstract:
A document printer with a paper feed (E1, E2) handling a strip print substrate (A) of selectable configuration, with a downstream electrographic printer (DRU) which can print the strip substrate (A) on one or both sides and a post-print forms handling device connected to the electrographic printer (DRU) on the output side. Said processor has a print-page separator (V), a buffer store (ZS) to accept the separated print-pages by job and a job finisher (JF) connected to the buffer store to collate the print-pages from the buffer store (ZS) into a document.
Abstract:
The invention relates to a ventilation system for cubicles with functional units stacked, tower fashion, one above another and producing considerable heat, especially in data processing. Usually, an individual fan is provided for each functional unit and the hot air is discharged through the top of the cubicle concerned. Often, however, an air discharge at the front or back of the cubicle is desirable. The aim of the invention is therefore to provide such a ventilation system. To attain this aim according to the invention, four identical fan units (2) are arranged half-way up the cubicle (1) in such a way that there are two fan units (2) above each other and rotated through 180 DEG and two fan units (2) in identical positions side by side. The fan units consist of a fan housing (3) open on both longitudinal sides in which there is at least one axial-radial fan (4). Two of the fan units are fitted directly one on top of the other, while the other two are at a defined distance apart thus forming a horizontal air passage (5) between them. The fronts or backs of the fan units (2) are partitioned off by structural components in the cubicles.
Abstract:
A substrate (21) is taken to a predetermined position on a substrate support base (10). One edge of the substrate (21) bears against a stop (18) fitted on one side of the base (10). Transversely to the stop (18) in or on the base (10) there is a transmitter or receiver (KS) which can be covered by the substrate support (21). There is a transmitter or receiver (KE) on the printing head (7). In the region covered by the transmitter or receiver (KS) there is a screening surface (30) on the base (10) at a given distance from the stop (18). When the printing head (7) is moved along the transmitter or receiver (KS), the position of the screening surface (30) and that of the edge of the substrate support away from the stop (18) are detected.
Abstract:
A pneumatic toner transport arrangement for an electrophotographic printing or copying machine is useful for transporting toner and for removing toner and/or dirt particles from units of the machine, such as the developing station (10) and the cleaning station (28). The arrangement has a negative pressure generator (31) connected to the various units of the machine by a negative pressure duct system. A particle separator (24) designed as a cyclone filter for separating toner and dirt particles from a throughflowing air flow is associated with the duct system. The particle mixture is separated in a recycling arrangement into dirt particles and recyclable toner and the recyclable toner is once again supplied to the developing station. The dirt particles are collected in a fine filter (32) of the negative pressure generator (31). The toner recycling arrangement (25) is designed as an exchangeable module which can be exchanged for a collecting container.
Abstract:
A thermofixing arrangement for fixing toner images on a strip-shaped recording medium (17) of an electrophotographic printing or copying machine has a thermoprinting fixing station (11, 12) and a heated preheating saddle (15) arranged upstream of the thermoprinting fixing station in the direction of transport of the recording medium. The preheating saddle (15) is designed as a low temperature saddle which is as long as possible, so that the temperature difference between the recording medium (17) and the saddle surface (24) is as reduced as possible. It has several heating zones (21, 23) arranged in the direction of transport of the recording medium. A regulating arrangement regulates the heating zones (21, 23) in such a way that an approximately constant thermal energy flow is set along the preheating saddle (15) at the surface (24) of the saddle on the recording medium (17). In order to adapt the preheating saddle (15) to recording media having different widths, the preheating saddle is subdivided into individually controllable transverse heating zones (30/1 to 30/3) which extend across the direction of transport of the recording medium.