What is error 004 and what do I do about it - Office Equipment & Supplies

This error refers to the communication error between the printer and its connection. To help you troubleshoot the issue, please follow the steps mentioned below:
-Turn the printer off using the power switch located on the printer panel.
-Wait 10 seconds, turn the printer back on, and check if the error message still occurs.
-If the error persists, reseat all of the toner cartridges. For more information about reseating toner cartridges, refer to the user's guide for your printer manufacturer.
-While reseating, clean the toner cartridges with clean cloth and verify that the orange plastic covers have been removed from the developer rollers.
-Turn off the printer, and disconnect the AC power cable and communication cable (Ethernet or USB, depending on set-up).
-Remove the Imaging Drum and verify that the developer rotor frame is not bent. If the frame is bent, please contact printer manufacturer to replace it.
-With the Imaging Drum removed, Open the front cover and then push on the toner cartridge handle to determine if the carousel moves freely.
-Reconnect the AC power cable, turn on the printer, and check. If the error still occurs, please contact your printer manufacturer for further advice.

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