Checks / troubleshooting:
1. Is P_EDGE sensor
assembly cable at
head connected
correctly?
2. Is P_REAR sensor
under media guide
R connected
correctly?
3. Check sensor
sensitivity from
"Sen 6:EdgeAD" of
self-diagnosis
function.
4. Is CR cable inserted
obliquely?
5. CR cable may be
broken.
6. CR board assembly
may be damaged.

Recommended actions:
Securely connect it to
CR board assembly
connector J211.