The present invention is targeted at suppressing ringing and overvoltage.

A driver circuit (200) drives a plurality of loads (Z.sub.1 to Z.sub.N). A plurality of output terminals (Po.sub.1 to Po.sub.N) are connected to the plurality of loads (Z.sub.1 to Z.sub.N). A plurality of drivers (Dr.sub.1 to Dr.sub.N) correspond to the plurality output terminals (Po.sub.1 to PO.sub.N), and generate driving signals (Vo.sub.#) applied to the respectively corresponding load (Z.sub.#). A plurality of clamp circuits (260_1 to 260_N) correspond to the plurality of drivers (Dr.sub.1 to Dr.sub.N), and include Schottky diodes (SD) connected to input nodes or output nodes of the respectively corresponding drivers (Dr).

An element substrate, comprises: a plurality of printing elements configured to discharge liquid; a plurality of first driving elements disposed in correspondence with the plurality of printing elements and configured to drive the plurality of printing elements; a plurality of heating elements configured to heat the element substrate; a plurality of second driving elements disposed in correspondence with the plurality of heating elements and configured to drive the plurality of heating elements; and a delay unit that delays timing of driving the plurality of second driving elements to drive the plurality of second driving elements at a predetermined time difference when driving the plurality of second driving elements simultaneously.

An ink-jet head driving circuit includes: PMOS transistors each of which has an Nwell area, a drain terminal and a source terminal, the PMOS transistors connected to a piezoelectric element for jetting ink from a nozzle; and an NMOS transistor connected to the drain terminals of the PMOS transistors. The source terminals and Nwell areas of the PMOS transistors are connected respectively to power sources, and voltage of one of the power sources connected to the Nwell area of each of the PMOS transistors is equal to or higher than the highest voltage of the power sources connected to the source terminals of the PMOS transistors.

An ink-jet head driving circuit includes: PMOS transistors each of which has an Nwell area, a drain terminal and a source terminal, the PMOS transistors connected to a piezoelectric element for jetting ink from a nozzle; and an NMOS transistor connected to the drain terminals of the PMOS transistors. The source terminals and Nwell areas of the PMOS transistors are connected respectively to power sources, and voltage of one of the power sources connected to the Nwell area of each of the PMOS transistors is equal to or higher than the highest voltage of the power sources connected to the source terminals of the PMOS transistors.

The method of the present disclosure includes steps of: (S1) providing a silicon substrate; (S2) arranging and disposing an active component layer by utilizing a first type photomask on at least two high-precision regions of each of a plurality of inkjet print head chip regions on the silicon substrate; (S3) arranging and disposing a passive component layer by utilizing a second type photomask on the active component layer; and (S4) cutting the silicon substrate according to the inkjet print head chip regions so as to form the plurality of narrow type inkjet print head chips.

The present disclosure relates to an ink jetting apparatus and a printing system including the same, the ink jetting apparatus including a liquid droplet generating unit configured to generate liquid droplets and jet the generated liquid droplets, a guide channel unit having a channel to guide the jetted liquid droplets and control evaporation of the liquid droplets, and being configured to protect the liquid droplets from thermal and physical disturbance; and a nozzle unit configured to discharge the liquid droplets that passed through the guide channel unit towards a substrate.

An electric potential difference between both ends of a first fuse portion is increased to more than the electric potential difference that is generated by an electric potential applied to drive print elements in a state where a first print element and a first covering portion are electrically connected to each other.

An inkjet recording apparatus 100 which records on a transferred recording medium X by an inkjet scheme, wherein the inkjet recording apparatus 100 includes guide rolls R for guiding the recording medium X, the recording medium X being negatively charged, recording units 1, 2, 3, and 4 formed of a plurality of recording heads 1a, 2a, 3a, and 4a for spraying ink onto the recording medium X, and a conductive frame unit 11 for supporting the recording heads 1a, 2a, 3a, and 4a, the recording heads 1a, 2a, 3a, and 4a and the conductive frame unit 11 having a continuity relation and the recording heads 1a, 2a, 3a, and 4a being grounded via the conductive frame unit 11.

The present disclosure relates to an ink jetting apparatus and a printing system including the same, the ink jetting apparatus including a liquid droplet generating unit configured to generate liquid droplets and jet the generated liquid droplets, a guide channel unit having a channel to guide the jetted liquid droplets and control evaporation of the liquid droplets, and being configured to protect the liquid droplets from thermal and physical disturbance; and a nozzle unit configured to discharge the liquid droplets that passed through the guide channel unit towards a substrate.

An inkjet recording apparatus 100 which records on a transferred recording medium X by an inkjet scheme, wherein the inkjet recording apparatus 100 includes guide rolls R for guiding the recording medium X, the recording medium X being negatively charged, recording units 1, 2, 3, and 4 formed of a plurality of recording heads 1a, 2a, 3a, and 4a for spraying ink onto the recording medium X, and a conductive frame unit 11 for supporting the recording heads 1a, 2a, 3a, and 4a, the recording heads 1a, 2a, 3a, and 4a and the conductive frame unit 11 having a continuity relation and the recording heads 1a, 2a, 3a, and 4a being grounded via the conductive frame unit 11.