|
(11) | EP 0 736 846 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
|
(54) | Microprocessor systems for electronic postage arrangements |
(57) A microprocessor system suitable for an electronic postage arrangement comprises
a microprocessor (10) ,register means (20, 21) coupled to said microprocessor for
storing postage accounting data and a plurality of sensors (50, 51, 52) for detecting
operation conditions in said postage meter . The microprocessor has a software routine
stored in a permanent memory (11) to check said sensors periodically during operation
and means responsive to the noncorrespondence of the outputs of said sensors and a
unique code stored in said microprocessor permanent memory, upon a comparison performed
in accordance with said software routine, for indicating an error condition. |