C5550 MFP User’s Guide
Troubleshooting > 171
Error
554
555
556
557
Replace toner
%ERRCODE%:%COLOR% toner 
regional
OKI regional mismatch: 
Incorrect toner cartridge fitted 
(incorrect signature ID; correct 
distribution channel group).
Replace with genuine toner 
cartridge. 
Error 554: Y
Error 555: M
Error 556: C
Error 557: K
Error
614
615
616
617
Replace toner
%ERRCODE%: incompatible 
%COLOR% toner
OEM channel mismatch: 
Incompatible toner cartridge 
fitted (incorrect signature ID; 
incorrect distribution channel 
group).
Replace with genuine toner 
cartridge. 
Error 614: Y
Error 615: M
Error 616: C
Error 617: K
Error
620
621
622
623
Replace toner
%ERRCODE%: incompatible 
%COLOR% toner
OEM mismatch: Incompatible 
toner cartridge fitted (protected 
signature ID; incorrect 
distribution channel group).
Replace with genuine toner 
cartridge. 
Error 620: Y
Error 621: M
Error 622: C
Error 623: K
Error
550
551
552
553
Genuine toner is recommended
%ERRCODE%: non genuine 
%COLOR% toner
Unauthorised 3rd party: 
Incompatible toner cartridge 
fitted (signature ID can not be 
recognised).
Replace with genuine toner 
cartridge. 
Error 550: Y
Error 551: M
Error 552: C
Error 553: K
STATUS 
/ CODE
MESSAGE MEANING / ACTION