Hp Laser Printer Error Code 70, 71. Hp Service Error 70, 71 - Faulty mio Card or simms

HP LASER PRINTER ERROR CODE 70, 71 - FAULTY MIO CARD OR SIMMS 

ALL HP LASER PRINTERS

1. Personality cartridge or SIMM installed in font or SIMM slot is incompatible with the printer.

2. Replace with compatible or SIMM.

HP LASER PRINTER 5SI

1. Faulty MIO card or cards.

2.Replace MIO card or cards.