9. If the error persists, a service technician might need to replace the waste toner detect sensor assembly.
Replace Transfer Kit
Description
10.22.70 Event log
The product indicates when a transfer kit is at its estimated end of life. The actual life remaining might be
different than the estimation. Have a replacement transfer kit available to install when print quality is no
longer acceptable.
The transfer kit does not need to be replaced now unless the print quality is no longer acceptable.
NOTE: After a transfer kit has reached its approximated end of life, the HP Premium Protection Warranty on
that transfer kit ends.
Recommended action
Replace the transfer kit. Instructions are included with the transfer kit.
Resend external accessory firmware
Description
An external accessory requires a firmware upgrade. Printing can continue, but jams might occur if the job
uses the external accessory.
Recommended action
Perform a firmware upgrade.
ENWW Tools for troubleshooting 417