Remedy: An error occurred in re-writing the PU firmware. Turn off and on the printer, and then re-download it (In general use of the printer, this re-writing is not performed and this error does not occur).
Description: CU program error (203 to 214 do not occur in general use of the printer) Invalid processing was performed with a CU program.
Remedy: Invalid processing was performed with a CU program. Replace the CU/ PU board.
Code: 209
Display: POWER OFF/ON 209:DOWNLOAD ERROR
Description: Custom Media Type table downloading failure Custom Media Type table downloading failed.
Remedy: Custom Media Type table downloading failed. Turn off and on the printer, and then re-download it (In general use of the printer, this downloading is not performed and this error does not occur).
Code: 231
Display: SERVICE CALL 231:ERROR
Description: TAG interface error A TAG interface error was detected. 01: A short-circuit error. 02: TAG communication error.
Remedy: Be sure the toner cartridges and the image drums are properly set. Replace the toner cartridges. When the error occurs again after the image drums are re-installed, be sure of the cable connection from the CU/PU board to the toner sensor board.