These printers use the C4844A cartridge:
HP 2000 C Professional Series
HP 2000 Printer
HP 2250
HP 2250 TN
HP 2500 CSE Professional Series
HP 2500 CXI Professional Series
HP 2500 C Professional Series
HP 2500 Professional Printer
HP Business InkJet 1000
HP Business InkJet 1100
HP Business InkJet 1100 D
HP Business InkJet 1100 DTN
HP Business InkJet 1200
HP Business InkJet 1200 D
HP Business InkJet 1200 DN
HP Business InkJet 1200 DTN
HP Business InkJet 1200 DTWN
HP Business InkJet 1700 D
HP Business InkJet 1700 PS
HP Business InkJet 2000
HP Business InkJet 2000 CN
HP Business InkJet 2000 CSE
HP Business InkJet 2000 CXI
HP Business InkJet 2200
HP Business InkJet 2200 SE
HP Business InkJet 2200 XI
HP Business InkJet 2230
HP Business InkJet 2250
HP Business InkJet 2250 TN
HP Business InkJet 2280
HP Business InkJet 2280 TN
HP Business InkJet 2300
HP Business InkJet 2300 DTN
HP Business InkJet 2300 N
HP Business InkJet 2330
HP Business InkJet 2500 C
HP Business InkJet 2500 C Plus
HP Business InkJet 2500 CM
HP Business InkJet 2500 CSE
HP Business InkJet 2600
HP Business InkJet 2600 DN
HP Business InkJet 2800
HP Business InkJet 2800 DT
HP Business InkJet 2800 DTN
HP Business InkJet 3000
HP Business InkJet 3000 DTN
HP Business InkJet 3000 N
HP Business InkJet CP-1700
HP Color InkJet CP 1700
HP Color InkJet cp-1700 D
HP Color InkJet cp-1700 PS
HP DesignJet 70
HP DesignJet 100
HP DesignJet 100 Plus
HP DesignJet 110
HP DesignJet 110 Plus
HP DesignJet 110 Plus NR
HP DesignJet 110 Plus R
HP DesignJet 500-24 IN
HP DesignJet 500-42 IN
HP DesignJet 500 PS 24 IN
HP DesignJet 500 PS 42 IN
HP DesignJet 800
HP DesignJet 800-24-Inch
HP DesignJet 800-42-Inch
HP DesignJet 800 PS
HP DesignJet 800 PS 24-Inch
HP DesignJet 800 PS 42-Inch
HP DesignJet Colorpro cad
HP DesignJet Colorpro ga
HP DeskJet 2000 CN
HP DeskJet 2000 CSE
HP DeskJet 2000 CXI
HP DeskJet 2500 CXI
HP HP 2000 C
HP HP 2000 CN
HP HP 2000 CSE
HP HP 2000 CXI
HP HP 2200 CXI
HP HP 2250
HP HP 2250 TN
HP HP 2500 C
HP HP 2500 C Plus
HP HP 2500 CM
HP HP 2500 CSE
HP HP 2500 CXI
HP HP 2500 SCE
HP HP 2500 SXI
HP OfficeJet 9100
HP OfficeJet 9110
HP OfficeJet 9120
HP OfficeJet 9130
HP OfficeJet Pro 9110
HP OfficeJet Pro 9120
HP OfficeJet Pro 9130
HP OfficeJet Pro K-850
HP OfficeJet Pro K-850 DN