JPS63199364U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure shows an example of the structure of a copying machine to which the usage period measuring device according to the present invention is applied, FIG. 3 is a circuit diagram showing a monitor circuit and a state detection circuit, and FIG. 4 shows a usage period measurement device according to the invention. FIG. 5 is a block diagram showing an example of the basic configuration of the apparatus, FIG. 5 is a timing chart when the copying machine is powered on, and FIG. 6 is a flow chart showing the processing flow of the control circuit. [Explanation of symbols], 1...Equipment body, 2...Equipment configuration unit, 3...Measuring means, 4...Resetting means, 5
... Usage condition monitoring means, 6... Condition determining means, 7...
Reset prohibition means, 10... Copying machine main body, 12... Status detection circuit, 14... Process end detection circuit, 16
...Control circuit, 18...Display device, 20...Process unit.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) When a device component unit that is detachably attached to the device body is attached to the device body, the amount corresponding to the operating time of the device component unit that operates in conjunction with the operation of the device shall be A usage period measuring device comprising a measuring means for cumulatively measuring the usage period of an equipment component unit, and a reset means for resetting the cumulative measurement value of the measuring means when loading the equipment component unit into the equipment body, The equipment configuration unit includes a usage state monitoring means that changes from a first state corresponding to an unused state to a second state when an unused equipment configuration unit is loaded into the equipment main body, and maintains this second state thereafter. At the same time, the device main body side is provided with a state determining means for determining the state of the usage state monitoring means when the device component unit is loaded into the device main body, and the state determining means on the device main body side determines the second state. A usage period measuring device characterized in that it is provided with a reset inhibiting means for inhibiting the reset operation of the reset means when the reset means is reset. (2) The usage state monitoring means is constituted by a current regulating circuit element that is blown out by the current supplied from the equipment main body when the equipment component unit is attached to the equipment main body, and the state determining means is configured to 1. A usage period measuring device according to claim 1, characterized in that the device comprises a current determining circuit that determines the presence or absence of a current flowing through a current regulating circuit element. (3) The usage period measuring device according to claim 2 of the utility model registration claim, characterized in that a fuse resistor is used as the current regulating circuit element. (4) The usage period measuring device according to claim 2 of the utility model registration claim, characterized in that the current regulating circuit element is an ultrafine pattern formed on a printed circuit board.