Issue Description:
While a user is printing multiple print jobs, the printer suddenly posts a Busy, please wait... for a few minutes then a 900.55 Firmware appears on the control panel.
Solution:
To resolve this issue, follow these steps:
Remove the packaging material that is still installed in the toner cartridges.
Perform a Power-On Reset (POR) by manually switching the printer OFF for a minute then powering it back ON.
Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer model(s)
Printer serial number - How to find the printer's serial number?
LEGACY ID: SO8541