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US 5,206,891 AGranted
Operational control counter circuitry for electrical apparatus
AssigneeMinolta Camera Kabushiki Kaisha
InventorHiroyuki Kishimoto
Life of this patent
Estimating the term…
Abstract
An electrical apparatus (e.g., copying apparatus) equipped with a counter for counting the number of specific cycles. Allowance or prevention of an operation cycle is controlled in accordance with voltage changes at a predetermined position of the controlling circuitry supplying a driving voltage to the counter. A specific operation of the electrical apparatus is enabled by connection of counter.
Claims17
An electrical apparatus for performing a specific operation, comprising:
- a counter for counting a number of said specific operations;
- a counter driving circuit being connected to said counter and supplying a driving voltage to said counter on the basis of an actuating signal;
- monitoring means for monitoring a voltage at a predetermined position of said counter driving circuit and outputting a result;
- and
- controlling means for controlling allowance of or prohibition of said specific operation in accordance with said result of said monitoring means.
2 more elements
An electrical apparatus for performing a specific operation, comprising:
- a counter for counting a number of said specific operations;
- connecting means which has a first connecting part which connects said counter with a power source for outputting a driving voltage for said counter, and a second connecting part which connects said counter with a ground;
- a counter driving circuit which supplies said driving voltage between said first and second connecting parts on the basis of an actuating signal;
- monitoring means for monitoring a voltage at a predetermined position of said counter driving circuit and outputting a result;
- and
- controlling means for controlling allowance of or prohibition of said specific operation in accordance with said result of said monitoring means.
3 more elements
Dependencies are inferred from the claim text.