4
!
Detail
When the message appears, replace the specified consumables or part
according to your maintenance agreement.
After the message "Please replace following unit(s)." appears, the mes-
sage "XXXX needs to be replaced." appears and the machine stops op-
erating.
The number of pages that can be printed after the message "Please re-
place following unit(s)." appears and before the message "XXXX needs to
be replaced." appears differs depending on the printing conditions, the
consumables and the part to be replaced.
4-106
Troubleshooting
cm4521