| 摘要 |
In a method for determining the number of normal imprints implementable in a printing device with a remaining ink quantity, to a computational determination of this number is made when a sensor-acquired, predetermined remaining ink quantity is signaled. In an arrangement for the implementation of the method, a microprocessor is programmed to undertake a rough computational determination of the remaining number of imprints to signal the need to change the ink tank cassette before the reserve quantity is tapped for use, to generate a message after a recognition of the change of the ink tank cassette, and to display it on a display. The microprocessor waits for an entry of a code via an input unit. Upon entry of the code, the microprocessor implements a check of the input code as to whether the changed ink tank cassette is authorized, and modifies the operation of the device if the completed check of the code has yielded an invalidity. The microprocessor undertakes a fine computational determination of the remaining number of imprints from a point in time at which the predetermined remaining ink quantity acquired by the sensor is signaled. The input of the code can ensue by chip card.
|
