Compatible Ink Cartridges for Epson T7904

A.If your printer runs smoothly and you want to continue using G&G or any other third-party high cost-effective products in the future, we recommend you to turn off automatic upgrade function to say no to firmware upgrades.

A.Quality assurance period for compatible new inkjet cartridge is 30 months; for remanufactured inkjet cartridge is 18 months

A.The printer only estimates the level of the ink in the cartridge. It is not a precise measurement. The new cartridges should be full and should last as long as normal.

A.Warning prompt is set by the printer manufacturer. Click YES to continue printing. There is no impact on printer and printing quality.

A.Take the cartridge out and reinstall it again. If still not work, use a dry cloth or paper tissue to clean the chip and reinstall it. If it is a HP with chip cartridge, as HP always updates the firmware, if it’s firmware updating, pls contact with your sales manager for a new chip.

A.Differing monitor drivers will produce slightly different color and therefore the colors displayed on your screen will always be slightly different than the ones that your printer prints. You could try to match them but each program uses a slightly different driver and therefore each color scheme is slightly different.

A. If you find any ink leakage, pls replace it asap, and replace a new one from your sales manager.

A.This should be the residual ink info of OEM cartridge is kept in the chip, simply ignore this warning. Click OK in the dialog box. As your printer will not warn you when the ink is running low we recommend keeping an eye on the quality of your prints and replacing the relevant cartridge when a color begins to fade.

A.This should be the residual ink info in the chip is used up, click "confirm" in the window or press "ok" button on the printer

A.This should be the residual ink info of OEM cartridge is kept in the chip, press “confirm” and go on printing.

A.This message may occur when you use remanufactured cartridge or cartridge with compatible chip, you can press “continue” to go on printing

A.There are some possible reasons as below, 1. The cartridge isn’t installed properly, pls reinstall. 2. The bad contact of metal tinsel in print head because of oxidation or loosening. Pls replace the print head. 3. Maybe you replace the inkjet cartridge when the power is off. Please turn on the printer and install the cartridge again, open the folder and then close it, and carry out the “nozzle cleaning procedure”. 4. The senor tinsel is not reset. Please take out the inkjet cartridge and reset the sensor tinsel, then install the inkjet cartridge 5. The inkjet cartridge isn’t replaced as procedures; pls replace it again properly according to procedures. 6. If it still doesn’t work after trying above solutions, possibly there is something wrong with the printer’s electronic memory. You need to delete the printer driver and reinstall the driver, then install the inkjet cartridge.

A.It's because air runs into the ink conduit or there is dirt in the printer head. You can carry on the "nozzle clean procedure" several times, or turn off the printer for several hours，or do the cleaning with cleaning cartridges

A.Please carefully check the nozzle test printout, you may find the picture is in disorder. This is because the printer head is deviated. You can use print head aligning tool in application tool once or several times until it's OK.

A.It's because the aging of print head. You have to change print head.

A.There are several possible reasons, 1. Virus with printer. You need to reinstall device driver or restart computer or reinstall system; 2. Bad contact with data cable. Reconnect data cable or change a new data cable. 3. Device driver for printer is damaged. Remove the old device driver and reinstall.

A.There are several possible reasons, 1. Printing paper is humid, pls dry printing paper or use a dry printing paper; 2. Printing paper is wrinkled or not smooth, pls change printing paper; 3. The bottom of the print head is dirty, pls clean print head.

A.It's because the aging of print head. You have to change print head.

A.The yellow label is not ripped off. The air guiding tunnel is still in a closed state, and air can’t flow into the cartridge. Pls rip off the yellow label.

A.1. Clean the print head for several times. If still not ok，place it for 1~2 hours and try again. 2. Maybe one cartridge is missing or used out, pls do nozzle test to check which one is missing or used out, just replace with a new one. 3. The printer program in the computer is not the same with printer you’re using. Pls set the right printer program. 4. The printer is settled to be economical mode, pls set another mode for better performance. 5. Color distortion is also related with computer color management，screen resolution, printer resolution, as well as print media. Please adjust the DPI to a higher figure 6. If your printer needs 2 or more inkjets, please check whether the inkjets are with same brand, as same brand ink has good compatibility 7. If above methods can’t work, maybe it’s because of the ink cartridges have bad quality, the damaged cartridges, or the aging print head and etc. Pls replace the inkjets or replace the print head.

A.1. If the print paper is not good, ink will be easily to permeate. Pls change the print paper. 2. If the DPI is setted too low, the print speed is increased, but printing quality is influenced. You can set the DPI to a higher figure.

A.Step 1: Please clean the print head no more than 6 times until it’s ok； Step 2: If it doesn’t work after the cleaning, please turn off the printer for one day. Then clean the print head and have a check the nozzle. Step 3: If it’s still not solved after the step 1 and step 2，you could forcibly print out a picture firstly, then clean the printer head and check the nozzle. Step 4: If all above methods don’t work, you need to send the printer to the Maintenance Station to clean.

A.This is normal; the printer do the cleaning repeatedly is for the purpose of filling the ink. When new inkjet cartridges are installed for the first time, it takes a few minutes to make the ink system full and make the printer initialization. When the ink is about to be full, the lights on the printer control panel blinks consistently; the printer couldn’t be turned off when the ink system is not full.