Patent ID: 6229975
Filing Date: 2001-05-08
Classification: G03G

Abstract:
Apparatus for electrographically producing image patterns on a recording medium, said apparatus comprising at least one printing unit, a toner reservoir being permanently installed with the apparatus for supplying toner to the unit and being refilled at chronological intervals via a filling opening,an apparatus cover for covering internal parts of the apparatus as well as the toner reservoir,electrical safety means that interrupts operation of the apparatus when the apparatus cover is opened,and a second opening being provided in the apparatus cover through which the toner reservoir can be refilled from the outside without interrupting the printing process,the improvement comprising means for generating a slight under-pressure in the toner reservoir, at least during the refilling procedure and said filling opening having a mouth adjacent the second opening for receiving a neck of a standardized toner bottle being inserted into said filling opening and second opening, so that a portion of the bottle remains outside of the apparatus cover during a filling operation.