LKB 1 set HP72 Remanufactured printheads C9380A C9383A C9384A with New Updated Chips compatible with HP Designjet T610 T620 T770 T790 T1100 T1120 1200 T1300 T2300 (1MK/Y1C/M1PK/G-US

Package Included: 1xgray/photo black, 1xcyan/magenta, 1xmatte black/yellow ( 1 G/PK, 1 MC , 1 MK/Y, C9380A / C9383A / C9384A, 3 pcs 100% compatible with the following printers: . HP Designjet T610 T620 T770 T790 T1100 T1120 1200 T1300 T2300 1. My printer reports The following print head has a problem or any error message, how do we process the next step. LKB Answer: Just skip the message, and press OK or Continue and go on printing. 2. My printer did not recognize the print head, how do we do. LKB Answer:please take off print heads, use eraser to clean the chips softly and tissue paper to clean the metal touch pot softly(can't finger touch, and then re install the print head; Or ②You can use a knife to tear off the remanufactured print head chip, and then use the double side tape to paste the original chip. 3. My printer hasn't printed for a long time, now the printer report shows that the print head has a problem, how do we do. LKB Answer: Your printer at least needs to print 1~2 pages twice a week. 4. If the ink in the cartridge is dye ink, can I change the dye ink to pigment ink. LKB Answer: No, can't. Note: 1. Our print head is remanufactured, not original one, Non OEM value save more for you; 2. When you replace the print head, please do Printer Head Cleaning 2~3 times every time.