摘要:
A paper feed device for feeding continuous stationery (12), provided with lateral perforations, into the transport elements (44) of a transfer station (17) of a non-mechanical printing device, in which paper feed device the transfer station (17) has in the transport direction of the continuous stationery paper transport belts (44) which are motor-driven both on the input and on the output side and engage in the lateral perforation of the continuous stationery (12), and a paper brake (31), which can be actuated when required, is arranged upstream of the input-side transport elements (47) in the transport direction. A switch device (D, C) is provided to feed the continuous stationery accurately after the continuous stationery (12) has been deposited in the output-side paper transport elements (48), which switch device drives the output-side paper transport elements (48) at least for a predeterminable feed time when the paper brake (31) is activated.
摘要:
In a process for evaluating binary data stored on the magnetic track of a magnetic storage card (10) in the form of flux changes in accordance with the two-frequency code, a relative movement (v) is produced between the magnetic storage card (10) and an electromagnetic transformer (30) which emits voltage pulses induced by the changes in magnetic flux. The time intervals between the voltage pulses are evaluated in order to obtain the data. To this end, standardization is carried out with uniform preliminary data at the beginning of a scanning operation. The output signal (U) of the electromagnetic transformer (30) is converted to digital values at predetermined times. The digital values are stored in the sequence in which they are stored and evaluated in order to obtain the data.
摘要:
For securing programs contained in a system storage and for checking their integrity, the programs are in each case coded by a symmetric cryptographic algorithm with the application of a readback secured, secret key, and a check number for each program is simultaneously formed and stored in the storage of the system. For checking the integrity, the programs are then coded again in the same manner and the check number thus obtained in each case is compared with the check number stored at the first coding. It is possible to derive from the result of comparison a criteria for activation or locking the following programs.
摘要:
A process of controlling the course of a program in form processing by data processing systems for data contents of a form (80, 81, 82) built of fields to be processed. The pictorial illustration (display of the form (80, 81, 82), the reading and fading in of the data relevant for this form, the manipulation of these data by the user and the processing of these data arranged by the user by a firmly assigned form processing program to the form after selection of a form specification. The form processing program is composed here, under predetermination of the actual form specification, according to the available fields, gradually of individual programs which are typical for the field.
摘要:
A stacking device for the pre-folded continuous paper (13) of a high-speed printing device (10) is of swivel-out design. It can be swivelled out of a basic position (A) initially into a removal position (B) by means of a guide system without changing the output height of the paper deposit surface. By further swivelling it can be placed in an additional removal position (C), the height of which is adjustable.
摘要:
An electromagnetic drive mechanism for a pin in a matrix printing head has a first magnet with an articulated armature, wherein a free end of the armature acts on the pin and can be returned to a disengaaged position by a recovery mechanism. The recovery mechanism comprises another articulated-armature magnet with an armature identical with that of the first magnet but with a yoke mounted on a side of the armature that faces away from a yoke of the first magnet.
摘要:
Power supply system having a buffered intermediate voltage which is supplied by an auxiliary voltage source in the event of failure of a principal voltage source, there being generated from the intermediate voltage by comparison with a threshold value a digital failure signal which both controls the auxiliary voltage source and is used to form a final failure signal.
摘要:
A turnover device is provided having a W-shaped arrangement of hollow rod-like deflector rods and reverser rods with an automatic threading device. The turnover device receives continuous paper in an admission slot, self-threads the paper therethrough, and returns the paper through a discharge slot in a flipped-over manner for use with a multi-functional, electrographic printer device for printing a web-shaped recording medium in simplex and duplex printing. The rods are preferably hollow with air holes to provide an air cushion between the rod and paper. Guide channels are also preferably disposed over each rod to guide the paper thereover.
摘要:
In a thermal fixing system for fixing toner images on the front side of a recording medium in an electrographic printer or copier device, the back side of the recording medium already having a fixed toner image. The thermal fixing means contains a heat transfer fixing station that fixes the toner images on the recording medium, and contains a pre-heating saddle that precedes the heat transfer fixing station in a running direction of the recording medium. A sliding surface that accepts the recording medium over its back side is allocated to the pre-heating saddle. The sliding surface is constructed of a toner-repellant material at least in a contact region with the recording medium. A separating device can separate the recording medium from the saddle.