High-Quality Printhead For940 C4900A C4901A For8000 8500 Series (CMYK)

Features: 1. This is a professional printhead compatible with a wide range of models. 2. This printhead is smooth and stable, and the color is natural. It's a worthy replacement printhead you deserve. 3. High-quality ink with a high degree of reduction and enough ink to reduce your costs. 4. The nozzle is polished, no paper jams, and the printing process is smooth. 5. All raw materials are Bayer from Germany; quality is guaranteed. Specifications: Features: 1. This is a professional printhead compatible with a wide range of models. 2. This printhead is smooth and stable, and the color is natural. It's a worthy replacement printhead you deserve. 3. High-quality ink with a high degree of reduction and enough ink to reduce your costs. 4. The nozzle is polished, no paper jams, and the printing process is smooth. 5. All use Bayer raw materials from Germany; quality is guaranteed. Specification: Color: Black/Yellow, Magenta/Cyan, CMYK (optional) Applicable Models: forOfficejet Pro8000/8500 / 8500A Printhead Size: approx. 94 x 57 x 20 mm / 3.7 x 2.2 x 0.8 inches Weight: approx. 80-160g Package List: 2 x Printhead Note: Please remove the cardboard polishing nozzle and the orange rubber cap before installation. Precautions: (1) Avoid physical contact with the nozzle holes and nozzle circuits to prevent electrostatic discharge and damage to electronic components. (2) Check the printer's ink cartridge for sufficient ink at all times and refill it promptly to prevent the nozzle from burning out due to insufficient ink. (3) The machine should not be left unused for too long to prevent the nozzles from clogging. (4) The nozzles and ink cartridges should not be removed frequently or left uninstalled for extended periods to prevent the ink supply tube from entering the air, causing an interruption in the ink supply. A lack of ink at the nozzle will affect the printing effect or burn the nozzle. "Printer head failure," try removing both print heads, gently wipe the circuit contacts of the faulty print head with an eraser, then install and use. (6) When the print quality is unsatisfactory, a machine with a control panel can run the "Nozzle Cleaning" option in the "Settings" menu on the panel. When a machine without a control panel is printing, a printer icon appears in the lower right corner of the computer screen. After clicking on it, click on "Printer" and then on "Properties" in the dialog box, and then locate the "Printer Cleaning" option. Different models have different features, and some models may not have this function. The nozzle can be removed, and the nozzle hole can be soaked in clean drinking water at 50-60 degrees Celsius for 3 to 5 minutes. Be careful when soaking the nozzle hole. The nozzle and water level must not exceed the contact point with the circuit board. Next, lightly wipe the nozzle hole with a clean paper towel and repeat the process several times. Clean any water spots before installing the machine for use. It is also recommended to adjust the print quality settings.