Kyocera TASKalfa MZ4000i/MZ3200i FAX platform — E/U03600
Kyocera E/U03600 means the subaddress-box password is incorrect. The guidance here is specific to TASKalfa MZ4000i/MZ3200i FAX platform and the Fax/subaddress password operation.
Error meaning
The subaddress-box password is incorrect.
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/U03600
What usually causes it
- The subaddress box exists, but the password supplied for that box is not accepted. This is an authentication failure at the fax box, not a telephone-line or paper problem.
- The exact condition recorded for this code is: The subaddress-box password is incorrect.
- Re-enter the box password exactly as configured and verify that the saved fax destination is not carrying an older password. If policy allows, update the destination entry rather than repeatedly guessing credentials.
What to try
Check the condition this code actually names
Enter the correct box password and retry.
Isolate the affected part of the workflow
Re-enter the box password exactly as configured and verify that the saved fax destination is not carrying an older password. If policy allows, update the destination entry rather than repeatedly guessing credentials.
Run a controlled confirmation test
Retry one fax to the same subaddress after the credential is corrected. A successful delivery confirms that the box registration itself was valid and only the password was wrong.
After each corrective action
Retry the original operation that produced E/U03600. If it works, stop there rather than moving into unrelated troubleshooting.
If the code returns
If E/U03600 continues, have an authorized administrator verify the box password locally and compare it with the sender configuration without exposing the credential in ordinary notes or screenshots.
When service may be needed
Do not disable box security to clear the message. Password reset or box administration should follow the organization’s access-control policy.
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.