Ang Refill ink For HP 852 Deskjet 6840, 6540, 6520, and 5740 Black Ink Cartridge

Compatible Printers Cartridges- 805, 860, 861, 803, 680, 678, 682, 818, 802, 901, 703, 704, 702, 831, 830, 46, 21, 22, 27, 28, 56, 57&, PG88, CL98, PG745, CL746, PG810, CL811, PG740, CL741, PG40, CL41, PG89, CL99, PG830, CL831 Compatible printers: 1112, 1212, 1510, 2131, 2723, 3835, 1000, 1010, 1515, 2132, 2675, 2729, 3050, 3515, 3545, 3635, 3636, 4123, 4535, 4625, 5075, 5550, 6500, 7000, 6500A, 1015, Can: E470, E477, E400, E410, E417, E560, E3370, E4570, MG2577S, MG2570S, MG3570, TS 207, TS 307, MX377, MP145 and all other cartridge inkjet printers Enjoy High Yield & Easy to refill -- 4000 Pages/Black, 6500 Pages/Colours per Bottle at 5% coverage Pages. How To Refill: Suck required ink into syringe from the ink bottle. Around 3 -5 ML is required to fill in each colour holes and 3 ML – 15 ML in black cartridge. It Depends on your Cartridge mode, slowly push the piston of the syringe into the hole. It should be very slow and careful. Do not overfill the sponge. Watch carefully while injecting