摘要:
An ink tank having at least one solid type semiconductor device arranged therefor, comprising: energy converting means for converting energy from the outside; and operating means operated by energy converted by said energy converting means, wherein the ink tank is configured to be mounted on an ink jet recording apparatus which is provided with photosensitive means for receiving light emitted by light emitting means of said solid type semiconductor device arranged in said ink tank, and transmitted through ink contained in said ink tank.
摘要:
Upon executing printing by latching an input digital image signal temporarily stored in a shift register (502) by a latch circuit (501), and energizing and driving a heater (401) using a power transistor (410) using an nMOSFET on the basis of the latched image signal, a voltage converter (111) boosts a voltage representing the ON state of the latched digital signal, and applies the boosted voltage to the power transistor (410).
摘要:
A printhead has a plurality of printing elements and a drive circuit for driving the printing elements are aligned in a predetermined direction on an element board. The printhead is provided with a Schmitt trigger (508) having hysteresis properties that give different threshold values to the rising and falling edges of a wave form of a logic signal (HE, LT, CLK, DATA) input into the drive circuit. The Schmitt trigger is provided with means (105, 801, 901, 100', 101') for adjusting the length of the delay at the rising and falling edges of the input wave form signal, so that the speed of data transmission to the printhead can be increased even as the supply voltage is lowered.