The HP No. 20 Black Inkjet Cartridge is exclusively designed for the HP Deskjet 610C and 612C color printers. The No. 20 cartridge works with the HP No. 49 large and economy tri-color inkjet cartridges and the C1816A photo inkjet cartridge to deliver crisp black  text, vibrant photo-quality color and best-in-class  plain-paper printing. 

                                                   
Features
                                                    
HP's Color Layering Technology for smooth color transitions, sharp edges, and even skin tones and gradients 
                                                    
small ink drop volume for high quality prints 
                                                    
Recyclable cartridge through the HP Print Cartridge Return and Recovery Program 

                                                   
specifications

Usuable ink: 15 ml 
Page count: 430 at 15% density 
Average ink cost per page: $.074 at 15% density 
 

* Price and specification subject to change without notice.