Patent ID: 8282295

Claim:
A label sheet positioning device for a barcode printer comprising: a pressure regulation seat rotatably mounted to an enclosure of the barcode printer to be selectively downward closed onto a label sheet hold-down axle of the barcode printer or upward moved to disengage from the label sheet hold-down axle, the pressure regulation seat having a top to which two pressure adjusting knobs and at least one universal adjusting knob are movably mounted; at least one universal adjusting mechanism adjustably coupled to the pressure regulation seat and being subjected to resilient depression/upward springing effected by the pressure adjusting knobs to adjust pressure in upward-downward direction and being further subjected to universal adjustment of displacement direction and angle effected by the universal adjusting knob; at least one printing head holder coupled to the universal adjusting mechanism, the printing head holder having a bottom coupled to a printing head of the barcode printer, whereby with the universal adjustment effected by the universal adjusting mechanism, the printing head is set in close engagement with a surface of a label sheet of the barcode printer; and, a C-clip mounted to the retention groove; wherein the universal adjusting knob has a lower end forming a bar, and the bar has an end around which a retention groove is circumferentially formed.