Troubleshooting flow chart 2:
** CHANGE DRUM SOON **
40055101TH Rev.4
Warning message to replace
ID unit because of its life.
Turn on power again.
Does the CHANGE
DRUM SOON message
remain on display?
Yes
Is the MCNT Board
mounted properly?
Yes
See ACTION 4.
No
See ACTION 3.
No
Mount it properly.
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