Replace Toner Collection Unit
Description
Event log message 10.31.70.
The product indicates when a toner collection unit (TCU) is at the end of its estimated life.
NOTE: After a TCU has reached its end of life, the HP Premium Protection Warranty for that TCU ends.
Recommended action
1. Replace the TCU.
2. If you want to operate the toner collection unit past its estimated life capacity, go to the Manage
supplies menu, open the Toner Collection Unit and Very Low Settings submenus, and then select the
Continue item.
NOTE: HP does not recommended this option because of the risk of overfilling the TCU, which can
result in the need to service the product.
3. If the TCU is new or newer, but the message does not clear or reappears too soon, use the following
steps in this procedure to troubleshoot the error.
4. Remove, and then reinstall the TCU to reseat it.
5. Check the TCU for any damage.
6. Check to see if the TCU is dirty on the outside in the circled area in the following figure. Wipe clean if
necessary.
NOTE: A TCU that continually gets dirty on the outside indicates a problem (for example, a leaking
toner cartridge). Moving or shipping the product after it’s been in use can also cause the outside of the
TCU to get dirty.
A TCU that is dirty on the inside in the circled area must be replaced.
7. Check to see if anything is blocking the sensor. The sensor has small lenses on both sides of the opening
in the areas circled in the following figure.
8. Gently clean both lenses on the sensor with compressed air (or you can usecotton swab to carefully
clean the lenses).
416 Chapter 2 Solve problems ENWW
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