Datamax-O'Neil printer replacementReplacement printheads for all Datamax-O-Neil printers. Original Datamax-O'Neil PHD20-2234-01 Thermal Printheads 300dpiSpecifications : Product Type: Printhead Brand Name: Datamax Manufacturer: Datamax-O'Neil Product Model: PHD20-2234-01 Product Name: PHD20-2234-01 300 DPI Printhead