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16. Malfunction code bizhub C450 16.6.18 Field Service Ver. 1.0 Mar. 2005 C2257: Cleaning Brush Motor's failure to turn Relevant Electrical Parts Cleaning Brush Motor (M22) Control Board (PWB-MC) WIRING DIAGRAM Step Action Control Signal Location (Electrical Component) 1 Check the M22 connector for proper connection and correct as necessary. — — 2 Check M22 for proper drive coupling and correct as necessary. — — 3 Check the PWB-MC connector for proper connection and correct as necessary. PWB-MC PJ2MC-9 (DC24 V) H-2 PWB-MC PJ37MC-3 (REM) PWB-MC PJ37MC-6 (LOCK) K-3 — — 4 5 M22 operation check Change PWB-MC. 16.6.19 C2258: Cleaning Brush Motor Turning at abnormal timing Relevant Electrical Parts Cleaning Brush Motor (M22) Control Board (PWB-MC) WIRING DIAGRAM Step 1 2 M22 operation check Location (Electrical Component) PWB-MC PJ37MC-3 (REM) PWB-MC PJ37MC-6 (LOCK) K-3 — — Change PWB-MC. 16.6.20 Troubleshooting Control Signal Action C2351: Toner Suction Fan Motor/K's failure to turn Relevant Electrical Parts Toner Suction Fan Motor/K (M23) Control Board (PWB-MC) WIRING DIAGRAM Step Control Signal Location (Electrical Component) 1 Check the M23 connector for proper connection and correct as necessary. — — 2 Check M23 for proper drive coupling and correct as necessary. — — PWB-MC PJ15MC-10 (REM) PWB-MC PJ15MC-12 (LOCK) C to D-21 — — 3 4 350 Action M23 operation check Change PWB-MC.
