Classic products, mainly For family or office use
Printers:
56/57 - 5550/5652/7150/7155;
27/28 - 3320/3323/3325/3420/3425/5168/5652;
816/817 - HP Deskjet 3538/3558/3658/3668/3743/3838/3918/5168, Photosmart 148/7268/7458, PSC 118/1218/1318/1406/1408
21/22 - HP Deskjet 3910/3920/3930/3940, PSC 1401/1402/1410