This is a Canon manufacturing problem that is common to a whole series of printers. It is referred to in Canon Europa N.V. Service Bulletin dated February 2007, Ref: iR3100C-049R ev. I
(F2-T0 I -0Ml -l 0 I 57-03)
Machines affected:
iR2570C 230V EUR : KNM03746 and later
iR2570C2i 30V : KNR00585a ndl ater
iR2570Ci2 30V EUR : KNQ06920a ndl ater
iR3170C 230V : KNC00006a ndl ater
iR3170C 230V EUR : KNB02l6l and later
iR3l70Ci 120V : KNF10183a ndl ater
iR3170C2i 30V : KNH00916a ndl ater
iR3170Ci2 30V EUR : KNG07907a ndl ater
iR3l70CU 120V : KNEl0l8l and later
Michael Beere, August 2008