Error message "Service Req E527" with Epson C1100 CX11 CX21


This error message "Service Req E527" means that the toner carousel housing the toner cartridges is obstructed, or is unable to rotate correctly. It can be caused by installing a toner cartridge incorrectly.

Solution 1:
  • Check that the toner cartridge at the front of the printer is installed correctly.


Solution 2: Manualy remove all of the toner cartridges.
  1. Close all the covers, and then power the printer off.
  2. Open Cover B, and then remove the photoconductor unit (PCU).
  3. Turn the toner carousel by hand to line up a toner cartridge with the front of the printer.
  4. Open Cover A.
  5. If the toner cartridge is not in position to remove it, close Cover A and repeat the steps above.
  6. Remove the toner cartridge, and then close Cover A.
  7. Repeat all the steps above until you have removed all four toner cartridges.
  8. Reinstall the PCU.
  9. Close all the covers, and then power on the printer.
  10. Open Cover A and Cover B.
  11. Check thoroughly for any jammed paper, foreign objects or damaged parts.
  12. If you can locate an obstruction, remove it. Then, close all the covers and restart the printer again.
  13. If you can identify any damaged parts, there is an obstruction you cannot remove, or there is no change after restarting the printer, then contact Epson for further advice.
  14. Reinstall the toner cartridges (Follow the prompts on the LCD display), and then test the printer.

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