condition if the embodiment shown in fig9 is used the thermochromic ink segment 50 is sufficiently heated by thermistor 76 and resistor 78 to be in a transparent condition the timer motor 88 remains deactuated during the entire time the moist fabrics short circuit sensor bars 20 22 as the fabrics become nearly dry they stop short circuiting the sensor bars 20 22 thereby causing scrs 90 92 to return to their original open circuit condition as a result the ptc thermistors 76 96 are turned off however the fabrics at this time are usually not completely dry and it is desirable to keep the dryer operating for an additional period of time this is accomplished by the timer motor 88 which begins running again because it is no longer under the influence of thermistor 96 during the time that the timer motor 88 continues to run the ptc thermistor 76 and 96 are off but the resistor 78 continues to be actuated through electronic control timer contact 84 resistor 78 provides sufficient heat to heat the end of thermochromic ink layer 34 adjacent the first l shaped leg of substrate 62 as viewed in fig8 or the segment 50 as viewed in fig9 and maintain them in a transparent condition as the timer motor 88 completes its cycle it causes timer contacts 82 and 84 to be opened thereby deactuating heater 86 and resistor 78 the thermochromic members 26 or 27 then cool and resume their opaque condition the amount of time that resistor 78 remains actuated is controlled by the setting of dial 79 the result of this configuration is that the entire window 32 is maintained in a transparent condition so.