The 7410 indicates a drum error (see below) the 0163053 is the number of prints made by the printer. The drum was most likely knocked loose when installing toner. Drum unit non- installing error - The drum unit is not installed or not installed properly. Detaching and refitting the developer unit Procedure 1. Open the top cover. 2. Open the MP tray. 3. Remove the developer unit. 4. Check or replace the developer unit and refit all the removed parts. 1. Remove the developer unit. 2. Open the left side cover and then remove the waste toner box. 3. Unlock the drum unit lock and then remove the drum unit. 4. Check or replace the drum unit and refit all the removed parts. I hope this is helpful, Shawn
Detaching and refitting the drum unit
7002 is the error code; 0006904 is the printer page count.
Error means-
Toner motor 2 overcurrent detection error (cyan toner)
• The engine controller PWB (A0004)
detected the overcurrent of toner
motor 2.
Possable causes-
1. Lump of toner inside cyan toner container or defectiveness of toner replenishment drive system.
Replace the cyan toner container.
2. Defective toner motor 2.
Replace the toner motor 2.
3. Defective engine controller PWB (A0004).
Replace the engine controller PWB (A0004).
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