Inkjet chip and control circuit of printing module of rapid prototyping apparatus

摘要

An inkjet chip of printing module of a rapid prototyping apparatus and a control circuit thereof are disclosed. The inkjet chip has a length and a width to define a total area including an unwiring area and a wiring area. The unwiring area has at least three liquid supply slots in parallel with each other and respectively connected to one of the ink chambers of the modular ink cartridge. The wiring area has a control circuit. The control circuit includes a plurality of liquid ejectors. Each liquid ejector has a heating resistor, a driving transistor, and a nozzle. The control circuit is connected to receive a power signal, a printing data signal, a preheating data signal, a preheating control signal, a reverse preheating control signal, a heating control signal, and a reverse heating control signal and connected with the common connection node for controlling the liquid ejector.