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

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EIO slot quickly and easily Versatile and convenient, the HP Jetdirect 620n Fast Ethernet internal print server supports a broad range of network operating

EIO slot LJ 5200dtn: Hi-Speed USB port, IEEE-1284 parallel port, one open EIO slot, HP Jetdirect Fast Ethernet embedded print server LJ 5200tn: Hi EIO slot The HP lock adapter, included in the box, deters access to the EIO hard disk by allowing you to secure the disk with a separate Kensington-style

slot gams HP Printer EIO Slot Cover Blanking Plate 5851-2583 Used Genuine SKU HP 5851-2583 In stock Only 1 left £ £  The EIO slot is available on the HP Color LaserJet 3000 and 3800 Series printers Yours is a 3600 series All the above series have embedded