A 900.xx firmware error follows the connection of the printer to certain networks; these networks where identified to have transmission frames containing over 1500-byte packets, which exceeds the limit set by the IEEE 802.3 standard.
Disconnect the printer from the network.
Perform a Power- On Reset (POR).
Perform a copy or print an internal test page.
Clear ALL jobs from all print queues.
Reconnect the printer to the network.
Does 900.xx return immediately?
Does the error occur only when performing a print job?
If the firmware‑level is not current, update the firmware.
LEGACY ID: SO8684