1. The print head is very fragile, do not touch it. Its surface is a piece of aluminum, and the inner layer is coated with a crystal oscillator and a very tiny ink tube. When it touches, it will be deformed even broken, the print head is broken at all.2. Be careful when installing the print head. Always power off and install properly. After install, gently push the carriage to left and right, check whether if it is smooth, after it is smooth, then can power on. Do not power on, whe it is not smooth.3. When connecting the cable, make sure it does not bring the ink, and make sure that it is in good contact with the socket. Otherwise, the print head will be short-circuited and burnt;4. The steel shaft should also be clean and smooth. It can be wiped with a paper towel and glued. Do not directly add oil to the shaft. Excess oil will flow to the nozzle and cause damage.5. After the machine and circuit is in good condition, secondly need to check if the ink water in enough and if the small cleaning blade and the ink suction pump is clean.6. There will be air inside the print head that has just been installed, so may it not print normally at once. Only when the air in the head is completely discharged, it can print normally;First of all, intermittent cleaning (clean it 2 times, then stop it for 30 minutes, then clean it again 2 times). If keep clean it many times without pause, it will cause Ink accumulation in pump, and print mix color, leak ink and also waste ink.Secondly, you can print more pictures to let the nozzle discharge air during work;Third, if the machine has led to the waste ink tube, you can first power off, and then use a syringewhich coverd with a rubber tube to pump the waste ink tube, until 3-5ml of ink is drawn.Then turn it on again and use the machine to clean it once. In this way, it means discharge the air artificially. The bad effect is that it is easy to cause the cleaning pump to stack ink.We also put installation video, you can watch it!!!Warranty for print head: If testing on your machine is good, then will be surely no quality problem.But if has quality problem when installation, non-human damage. Pls contact us we will provide return policy.

For Epson 1390 1400 R270

For Epson L210 L220

For HP 950 951 

For Epson T50 T60

For Epson XP600 XP601 XP700

For Brother DCP-J100 J105 MFC-J200 J132

Shenzhen Shenxiangyu Technology Co., Ltd has registered in 2000.It's an integrated enterprise of manufacture and sales in the line of printer consumable and parts. Our factory located in Shenzhen China. With over 10 years' experience in this industry. professional technique and sales department make our products quality and price be in the lead position.Our products range includes five series:1.Laser printer parts and consumables: like toner cartridge, OPC drum, magnetic roller, PCR, fuser film sleeve, wiper/doctor blade, fuser assembly/fuser assy...2.Copier and fax parts and consumables: like toner cartridge, OPC drum, developer unit, paper pickup roller, upper fuser roller, pressure roller...3.Ink cartridge and parts: like ink cartridge, clip, refill kit, printer head, main board, net card, power board, carriage assembly, CISS, formatter board, separation pad...4.Plotter parts and consumable: like belt, encode strip, power switch, memory card, cutter bushing, motor, carriage assembly...5.Dot matrix printer parts and consumables: like printer head, cable, harness panel cable, pin, ribbon, ribbon mask, main board, power board, platen knob, tractor...

Why work with us?Our Principle: Honest, Reliable, Professional, High quality, High Efficient, Mutual Respect, Mutual Benefit, Never-ending Service1. Toner cartridge, we use high quality OPC, Blades, PCR, MAG ROLLER, SCC chip, Korea toner to fill black toner cartridge, use Mistubishi toner to fill color toner cartridge. High quality as Original!2. Three times testing, 100% test on printer, low defective rate: <1%3. Worry-Free buying, we guarantee 100% replacement or refund for any defective products; We will never let you down or feel unhappy.4. Long-term technical support, service never ends, we work till you are satisfactory & happy5. Full range of printer consumables and printer accessories, one stop purchasing, saving your time, saving your cost.6. We are responsible, we won't shirk responsibility when we are responsible for it, you won't feel you are cheated, we are there with you, we would work together with you to find solution if there's any problem arises. We are there!If you have any question or inquiry, pls contact Serena Liu, always waiting for you here! My friend, why not send us a inquiry now?