HP 70 Photo Black C9437A C9449A CN633A HP 70 Light Gray C9439A C9451A CN634A HP 70 Cyan C9440A C9452A CN636A HP 70 Magenta C9441A C9453A CN629A HP 70 Yellow C9442A C9454A CN630A HP 70 Light Magenta C9443A C9455A CN631A HP 70 Light Cyan C9389A C9390A CN632A Printheads The Printheads are extremely durable and do not need to be replaced every time an Ink Cartridge is replaced. They are independent of the Ink Cartridges and will continue giving excellent image quality results even if the Ink Cartridges are low on ink. If you notice a decline in print quality such as lines or dots missing from text/graphics, go to Troubleshooting Print Quality Problems on page 36 .
Available Printheads Printhead Type Part number HP 70 Matte Black & Cyan C9404A HP 70 Light Magenta & Light Cyan C9405A HP 70 Magenta & Yellow C9406A HP 70 Photo Black & Light Gray C9407A General Information About the Ink Supplies For optimum results from the printer and modular ink delivery system always follow these guidelines when handling the ink supplies: ● Always install the Ink Cartridges and Printheads before the expiration date, which is on the packaging. ● Install Ink Cartridges and Printheads in their color-coded slots. ● Follow the instructions on the front panel of the Printer during installation. ● Avoid unnecessary removal of the Ink Cartridges and Printheads.
10 Chapter 1 Ink Supplies Troubleshooting & Print Quality ENWW