Inside HP 21 (C9351AE) Black Ink Cartridge

Learn how to refill this cartridge here:

A quick video showing you the inside of the HP 21 (C9351AE) ink cartridge, how much ink is in it and approximately how many pages you can expect to print using this ink cartridge.

This ink cartridge is compatible with the following printers:
HP DeskJet 2149
HP DeskJet 2180
HP Deskjet 3900
HP Deskjet 3910
HP Deskjet 3915
HP Deskjet 3918
HP Deskjet 3920
HP Deskjet 3930
HP Deskjet 3938
HP Deskjet 3940
HP Deskjet 3940v
HP Deskjet D1360
HP DeskJet D1400
HP Deskjet D1415
HP Deskjet D1420
HP Deskjet D1430
HP Deskjet D1460
HP Deskjet D1470
HP DeskJet D1520
HP DeskJet D1530
HP DeskJet D1560
HP Deskjet D2230
HP Deskjet D2300
HP Deskjet D2320
HP Deskjet D2330
HP DeskJet D2360
HP Deskjet D2368
HP Deskjet D2430
HP Deskjet D2460
HP Deskjet D2466
HP Deskjet D2468
HP DeskJet F2100
HP DeskJet F2110
HP Deskjet F2120
HP DeskJet F2128
HP DeskJet F2140
HP Deskjet F2179
HP Deskjet F2180
HP DeskJet F2185
HP Deskjet F2187
HP DeskJet F2188
HP Deskjet F2200
HP Deskjet F2280
HP Deskjet F2290
HP Deskjet F310
HP Deskjet F340
HP Deskjet F350
HP Deskjet F370
HP Deskjet F375
HP Deskjet F380
HP Deskjet F388
HP Deskjet F390
HP Deskjet F4100
HP Deskjet F4140
HP Deskjet F4172
HP Deskjet F4180
HP Deskjet F4185
HP Deskjet F4188
HP Deskjet F4190
HP Officejet 4300
HP Officejet 4310
HP Officejet 4315
HP Officejet 4350
HP Officejet 4355
HP Officejet 4360
HP Officejet J3508
HP Officejet J3608
HP Officejet J3680
HP Officejet J5520
HP PSC 1400
HP PSC 1401
HP PSC 1402
HP PSC 1410
HP PSC 1410v
HP PSC 1410xi
HP PSC 1415
HP PSC 1417

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@gzjm6882 : I wonder that empty slot with no sponge, does it work as ink tank?? Or its just left empty on purpose?
@farooqueshaikh7148 : F2120 ke liye chale ga kiya
@MrCatman6 : Thank you, excellent information.  Especially using vacuum to get the ink started
@farooqueshaikh7148 : cartidge 21 kitne ka hain
@user-rw3qq2sr1z : SOOOOOO they don't use the whole cartridge for a bigger sponge to hold ink - what scam to bilk the consumer, customer out of cash with YUGE COSTS OF INK for such little amount !!

HP 21 Ink Cartridge - Quick Guide to HP 21 Ink Cartridge

Explaining the HP 21 ink cartridge such as model number and functions. Learn more about which HP printers the HP 21 ink cartridge fits such as the DeskJet and Office. Finally find about about the HP 21 ink cartridge capacity and page yield etc. A quick guide to the HP C9351A - more commonly known as HP 21 printer ink.

Refilling hp 21 cartridge

http://www.inkfilling.net/package-a-for-hp-cartridges.html
Instructions on how to refill hp 21 cartridges

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