Printer r330 The middle of the red light is always on, what's going on?

1. Require replacement of ink cartridges:

Click this button on the red light, the car will move to the left. After the car stops, find the cartridge reset button, which is the small button that is high out of the cartridge, press the button for 10 seconds, and then press the ink key. If the car does not return to the automatic ink suction, repeat the above operation.

2. The printer does not recognize the ink cartridges:

A. Click on the Ink key (is the key to the red light), the car stopped after pulling out all the internal cartridges, using the eraser cartridge chip, reinstall.

But note: The hand can not touch the cartridge chip. Because the chip is made of CMOS material, easy to be damaged by the body electrostatic breakdown.

B. If the ink cartridge is still not recognized, replace the cartridge chip to try.