These printers use the C8766 cartridge:
HP A 10 PRINTING MailBOX
HP DesignJet 5940
HP DesignJet 5940 XI
HP DesignJet 5943
HP DeskJet 460
HP DeskJet 460 C
HP DeskJet 460 CB
HP DeskJet 460 WBT
HP DeskJet 460 WF
HP DeskJet 5740
HP DeskJet 5740 XI
HP DeskJet 5743
HP DeskJet 5745
HP DeskJet 5748
HP DeskJet 5940
HP DeskJet 5940 V
HP DeskJet 5940 XI
HP DeskJet 5943
HP DeskJet 6520
HP DeskJet 6520 XI
HP DeskJet 6540
HP DeskJet 6540 DT
HP DeskJet 6540 XI
HP DeskJet 6543
HP DeskJet 6548
HP DeskJet 6620
HP DeskJet 6620 XI
HP DeskJet 6830 V
HP DeskJet 6840
HP DeskJet 6840 DF
HP DeskJet 6840 DT
HP DeskJet 6840 XI
HP DeskJet 6843
HP DeskJet 6940
HP DeskJet 6940 DT
HP DeskJet 6943
HP DeskJet 6988
HP DeskJet 6988 DT
HP DeskJet 6988 XI
HP DeskJet 9800
HP DeskJet 9800 D
HP DeskJet 9803
HP DeskJet 9803 D
HP DeskJet 9860
HP OfficeJet 100 Mobile - L411A
HP OfficeJet 100 Mobile - L411B
HP OfficeJet 150 Mobile All In One
HP OfficeJet 2710
HP OfficeJet 6200
HP OfficeJet 6200 All In One
HP OfficeJet 6200 Series
HP OfficeJet 6203
HP OfficeJet 6205
HP OfficeJet 6208
HP OfficeJet 6210
HP OfficeJet 6210 All In One
HP OfficeJet 6210 V
HP OfficeJet 6210 XI
HP OfficeJet 6213
HP OfficeJet 6215
HP OfficeJet 6300
HP OfficeJet 6300 All In One
HP OfficeJet 6304 All In One
HP OfficeJet 6305 All In One
HP OfficeJet 6307 All In One
HP OfficeJet 6308 All In One
HP OfficeJet 6310
HP OfficeJet 6310 All In One
HP OfficeJet 6310 V
HP OfficeJet 6310 XI
HP OfficeJet 6313 All In One
HP OfficeJet 6315 All In One
HP OfficeJet 6318 All In One
HP OfficeJet 7205
HP OfficeJet 7208
HP OfficeJet 7210
HP OfficeJet 7210 All In One
HP OfficeJet 7210 V
HP OfficeJet 7210 XI
HP OfficeJet 7213
HP OfficeJet 7215
HP OfficeJet 7218
HP OfficeJet 7310
HP OfficeJet 7310 All In One
HP OfficeJet 7310 XI
HP OfficeJet 7313
HP OfficeJet 7408
HP OfficeJet 7410
HP OfficeJet 7410 All In One
HP OfficeJet 7410 XI
HP OfficeJet 7410 XIM
HP OfficeJet 7413
HP OfficeJet H-470
HP OfficeJet H-470 B Mobile
HP OfficeJet H-470 Mobile
HP OfficeJet H-470 WBT Mobile
HP OfficeJet H-470 WF Mobile
HP OfficeJet H-470 WF
HP OfficeJet K-7100
HP OfficeJet K-7103
HP OfficeJet K-7108
HP PhotoSmart 325
HP PhotoSmart 325 V
HP PhotoSmart 325 XI
HP PhotoSmart 328
HP PhotoSmart 329
HP PhotoSmart 335
HP PhotoSmart 335 V
HP PhotoSmart 335 XI
HP PhotoSmart 337
HP PhotoSmart 375
HP PhotoSmart 375 B
HP PhotoSmart 375 V
HP PhotoSmart 385
HP PhotoSmart 385 V
HP PhotoSmart 385 XI
HP PhotoSmart 420 /M415
HP PhotoSmart 420 /M417
HP PhotoSmart 420 /M517
HP PhotoSmart 420 V
HP PhotoSmart 420 XI
HP PhotoSmart 422
HP PhotoSmart 422 GO GO
HP PhotoSmart 422 V
HP PhotoSmart 422 XI
HP PhotoSmart 425
HP PhotoSmart 425 GO GO
HP PhotoSmart 425 Portable Photo
HP PhotoSmart 425 Portable Photo Studio
HP PhotoSmart 425 V
HP PhotoSmart 428
HP PhotoSmart 428 GO GO
HP PhotoSmart 428 V
HP PhotoSmart 428 XI
HP PhotoSmart 475
HP PhotoSmart 475 V
HP PhotoSmart 475 XI
HP PhotoSmart 2570
HP PhotoSmart 2573
HP PhotoSmart 2575
HP PhotoSmart 2575 All In One
HP PhotoSmart 2575 V
HP PhotoSmart 2575 V All In One
HP PhotoSmart 2575 XI
HP PhotoSmart 2575 XI All In One
HP PhotoSmart 2605
HP PhotoSmart 2608
HP PhotoSmart 2610
HP PhotoSmart 2610 All In One
HP PhotoSmart 2610 V
HP PhotoSmart 2610 XI
HP PhotoSmart 2613
HP PhotoSmart 2615
HP PhotoSmart 2710
HP PhotoSmart 2710 All In One
HP PhotoSmart 2713
HP PhotoSmart 8030
HP PhotoSmart 8038
HP PhotoSmart 8049
HP PhotoSmart 8050
HP PhotoSmart 8050 V
HP PhotoSmart 8050 XI
HP PhotoSmart 8053
HP PhotoSmart 8150
HP PhotoSmart 8150 V
HP PhotoSmart 8150 XI
HP PhotoSmart 8153
HP PhotoSmart 8450
HP PhotoSmart 8450 GP
HP PhotoSmart 8450 V
HP PhotoSmart 8450 XI
HP PhotoSmart 8453
HP PhotoSmart 8543
HP PhotoSmart 8700
HP PhotoSmart 8700 XI
HP PhotoSmart 8700 GP
HP PhotoSmart 8753
HP PhotoSmart C4140
HP PhotoSmart C4150
HP PhotoSmart C4180
HP PhotoSmart C-4193 All In One
HP PhotoSmart C-4194 All In One
HP PhotoSmart C5060
HP PhotoSmart C5065
HP PhotoSmart C5069
HP PhotoSmart C5145
HP PhotoSmart C5155
HP PhotoSmart C5160
HP PhotoSmart D-5060
HP PhotoSmart D-5065
HP PhotoSmart D-5069
HP PhotoSmart D-5100
HP PhotoSmart D-5145
HP PhotoSmart D-5155
HP PhotoSmart D-5160
HP PhotoSmart Pro B-8300
HP PhotoSmart Pro B-8350
HP PhotoSmart Pro B-8330
HP Printer Scanner Copier 1600
HP Printer Scanner Copier 1600 All In One
HP Printer Scanner Copier 1603
HP Printer Scanner Copier 1605
HP Printer Scanner Copier 1608
HP Printer Scanner Copier 1610
HP Printer Scanner Copier 1610 All In One
HP Printer Scanner Copier 1610 V
HP Printer Scanner Copier 1610 XI
HP Printer Scanner Copier 1613
HP Printer Scanner Copier 1615
HP Printer Scanner Copier 2350
HP Printer Scanner Copier 2350 All In One
HP Printer Scanner Copier 2351
HP Printer Scanner Copier 2352
HP Printer Scanner Copier 2353
HP Printer Scanner Copier 2355
HP Printer Scanner Copier 2355 All In One
HP Printer Scanner Copier 2355 V
HP Printer Scanner Copier 2355 XI
HP Printer Scanner Copier 2357
HP Printer Scanner Copier 2358
HP Printer Scanner Copier 2575