Kyocera TASKalfa MZ4000i/MZ3200i FAX platform — U01400
Kyocera U01400 means tone dialing was attempted on a pulse-dial telephone line. The guidance here is specific to TASKalfa MZ4000i/MZ3200i FAX platform and the Fax/line dialing operation.
Error meaning
Tone dialing was attempted on a pulse-dial telephone line.
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.
- U01400
What usually causes it
- The fax is trying to use tone dialing on a telephone service configured for pulse dialing. The problem occurs before document transmission, so scan quality, destination memory, and SMTP settings are unrelated.
- The exact condition recorded for this code is: Tone dialing was attempted on a pulse-dial telephone line.
- Check the fax line’s actual dialing service and set the machine’s dialing mode to match it. On a managed PBX, confirm whether an outside-line prefix or PBX setting changes the dialing requirement.
What to try
Check the condition this code actually names
Set the fax line dialing mode to match the telephone service, then retry the call.
Isolate the affected part of the workflow
Check the fax line’s actual dialing service and set the machine’s dialing mode to match it. On a managed PBX, confirm whether an outside-line prefix or PBX setting changes the dialing requirement.
Run a controlled confirmation test
Place a short test fax after the dialing mode is corrected and listen only for normal call progress; do not change fax resolution or ECM during this first confirmation.
After each corrective action
Retry the original operation that produced U01400. If it works, stop there rather than moving into unrelated troubleshooting.
If the code returns
If U01400 returns on a line known to support tone dialing, record whether the machine is connected directly to the line or through a PBX/adapter because the intermediate telephone equipment may be presenting a different dialing environment.
When service may be needed
Do not modify telephone wiring beyond normal user connections. Persistent line-mode problems should go to the phone-system or fax administrator.
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.