Abstract: The invention describes a turn-on delay device (10) for a visual display unit (14) which can be placed into an idle state by disabling at least one signal (H-SYNC IN, V-SYNC IN) controlling the visual display unit (14). The turn-on delay device contains, amongst other things, a disabling device (42, 44, 46) which disables the signal (H-SYNC IN, V-SYNC IN) for a predetermined delay period. When the delay period has elapsed, the signal (H-SYNC IN, V-SYNC IN) is supplied to the visual display unit (14).

Abstract: The card-shaped plastic carrier 2 of a cleaning card for magnetic track and chip card writing/reading devices is partially layered with a codable material as well as with soft cleaning material. The cleaning material consists of a fiber flock with individual fibers extending essentially perpendicularly from the carrier and tightly packed and adhesively attached to the carrier and having predetermined lengths and predetermined diameters. The codable material is in the form of a pigmented screen printed color printed in several screen printing processes; then on at least side of the card pre-given surface areas for the cleaning material is layered by screen printing processes with a two-component adhesive 8; then the individual fibers are set into the adhesive beds of the individual surface areas essentially perpendicularly; the flat plastic carrier 2 with the layers is subjected to a drying process; and then the nonbonded fibers are washed away.