How do I check drum life in service mode for Canon iR advance c 5235?

[tonx10]

Which is the best way to check the drum life fo ira c5235i?

Thanks

T

[canonbundy]

Which is the best way to check the drum life fo ira c5235i?

Thanks

T

SRV MODE > COUNTER > LF.

or DURABLES1 > PT DRUM (Y-M-C-K) for % used.

[DMP]

SRV MODE > COUNTER > LF.

or DURABLES1 > PT DRUM (Y-M-C-K) for % used.

Should each drum be used until 100% or replace earlier?
Current values:
Y 78 (60%)
M 78 (60%)
C 85 (63%)
K 21 (21%)

Thanks in advance!

[disamm]

we leave the drums in it until they don't print nice anymore. We do not pay attention to the % display.