Printer is getting error message 40 and 41 as well as EIO Error

HP JetDirect 620n - Print server - EIO - Ethernet, Fast eio slot EIO slot, one EIO slot with print Server, Fast Ethernet 10100 Base-TX Network Interface Card j Media: Input: Tray 1 pg slot ทดลองเล่น ซื้อฟรีสปิน Unscrew the attaching screws on the HP JetDirect card and remove it from the slot Carefully slide the JetDirect card into the other slot in

candy gold slot Install an EIO card · 1 Turn off the product · 2 Remove the two screws and cover plate from the EIO slot on the back of the product HP Laserjet P3010 nhu eio