A user installed new inkjet cartridges and now nothing prints on the page. Printer carriage moves like it is printing but it prints blank page. They say there were no protective plastic covers on the cartridge, there is no error message, the ink shows as full, they cleaned the print heads and nothing prints. Ink is not dried up. Printer is an Epson Stylus c88+. I installed new drivers and same issue, computer is xpSP2.