Plus, you'll print three times as many pages as with a standard HP 21 cartridge, so it's an excellent value for anyone who needs to print frequently.

# Get great output with this high-quality cartridge
# Maximize your ink use: get fast results and superior fade resistance while using less ink with our Vivera inks
# Rely on HP for low-maintenance, trouble-free printing: this cartridge was designed alongside the HP Deskjet F4100 printer to create maximum efficiency
# Get exclusive offers and rewards discounts on HP ink, toner, and paper, plus shop from a list of customized printing supplies and get free next-day shipping with our "My Print Rewards" program
# Compatibility: HP Deskjet F4100 printer

Specifications
Standard cartridge for everyday printing
Ink volume: 20 ml

HP 56 Ink Cartridge is compatible Printers: 

HP 1240 Fax (Q5621A)
HP Deskjet 450cbi Mobile Printer (C8112A)
HP Deskjet 450ci Mobile Printer (C8111A)
HP Deskjet 450wbt Mobile Printer (C8145A)
HP Deskjet 5150 Color Inkjet Printer (C8962A)
HP Deskjet 5550 Color Inkjet Printer (C6487C)
HP Deskjet 5650 Color Inkjet Printer (C6490E)
HP Deskjet 5850 Color Inkjet Printer (C8975A)
HP Deskjet 9670 Printer (C8138A)
HP Deskjet 9680 Printer (C8139A)
HP Officejet 4110 All-in-One (Q1609A)
HP Officejet 4110v All-in-One (Q1611A)
HP Officejet 4215 All-in-One (Q5601A)
HP Officejet 5505 All-in-One (Q3438A)
HP Officejet 5610 All-in-One (Q7311A)
HP Officejet 6110 All-in-One (Q1638A)
HP Officejet 6110xi All-in-One (Q1639A)
HP Photosmart 7150 Printer (Q1604A)
HP Photosmart 7260 Photo Printer (Q3005A)
HP Photosmart 7350 Printer (Q1603A)
HP Photosmart 7450 Photo Printer (Q3409A)
HP Photosmart 7550 Printer (Q1605A)
HP Photosmart 7755 Photo Printer (Q5744A)
HP PSC 1210 All-in-One (Q1662A)
HP PSC 1311 All-in-One (Q5768A)
HP PSC 1315 All-in-One (Q5765A)
HP PSC 1350 All-in-One (Q3501A)
HP PSC 2110 All-in-One (C8648A)
HP PSC 2175 All-in-One (Q3068A)
HP PSC 2410 Photosmart All-in-One (Q3087A)
HP PSC 2510 Photosmart All-in-One (Q3094A)