Kyocera TASKalfa MZ4000i/MZ3200i FAX platform — E/U04000
Kyocera E/U04000 means the recipient subaddress box is not registered or the subaddress does not match. The guidance here is specific to TASKalfa MZ4000i/MZ3200i FAX platform and the Fax/subaddress destination operation.
Error meaning
The recipient subaddress box is not registered or the subaddress does not match.
This interpretation is tied to the reviewed family/platform and subsystem. Do not reuse the code by itself on another printer family.
Applies to
TASKalfa MZ4000i/MZ3200i FAX platform
- TASKalfa MZ4000i
- TASKalfa MZ3200i
Common formatting
These are lookup/formatting aliases for this reviewed condition, not separate pages.
- E/U04000
What usually causes it
- The remote recipient does not have the requested subaddress box registered, or the subaddress sent by this machine does not match the recipient’s box. The mismatch is at the destination side.
- The exact condition recorded for this code is: The recipient subaddress box is not registered or the subaddress does not match.
- Confirm the recipient’s exact subaddress with the remote user and update the saved destination if the box number has changed. Treat the subaddress separately from the ordinary fax telephone number.
What to try
Check the condition this code actually names
Correct the recipient subaddress/box information.
Isolate the affected part of the workflow
Confirm the recipient’s exact subaddress with the remote user and update the saved destination if the box number has changed. Treat the subaddress separately from the ordinary fax telephone number.
Run a controlled confirmation test
Resend a short fax to the verified remote box. If a normal fax to the same number works but the subaddress fax fails, keep troubleshooting the box information rather than the phone line.
After each corrective action
Retry the original operation that produced E/U04000. If it works, stop there rather than moving into unrelated troubleshooting.
If the code returns
If E/U04000 returns, record the destination number and subaddress separately so the recipient can compare them with their registered box configuration.
When service may be needed
No internal printer repair is appropriate for a remote box mismatch. The destination administrator must create or correct the box when the supplied subaddress is valid.
Continue with guided troubleshooting
If the printer still is not working after the reviewed checks, carry this verified error context into the guided troubleshooter.
Related information
Verified source
Official two-model FAX guide. Error Code List establishes fax/i-FAX meanings and family scope; public guidance is independently paraphrased.