Product

Thermal 2 Head

Machines affected

All devices

Errors

TH2 error 02700: Media initialization failed.

TH2 error 02701: The media key is invalid.

TH2 error 02702: The media index is invalid.

TH2 error 02703: Failure writing the media key.

TH2 error 02704: Failure reading the media key.

Cause

The firmware has become corrupted and a subsystem is not available. The media slots have become corrupted after a firmware downgrade.

Solution

Erase and rebuild the nvs.

1. Run nvsdump.spt.

   You will now have a back-up of all the nvs with the exception of the media parameters (which do not show up).

2. Type: TH2> pot info

   The following appears:

   Index     Name                      Wiper
   -----------------------------------------
   0         Focus Acuator             X*
   1         Beam-pointing Actuator    Y*
   **** Command Success ***

*Where X and Y represent your Wiper settings.

Important:  Write down the above pot settings as they will not be restored by any scripts.

3. Erase the registry.
   • Type: TH2> reg erase
4. Select Y to erase the registry.
5. Erase the Eeprom.
   • Type: TH2> eeprom erase
6. Select Y to erase the Eeprom.
7. Reset the head.
• Type: TH2> reset
8. Reload the prmparms.txt with the nvsrestore.spt.
9. Reload the pot settings.
   • Type: TH2> pot write 0 X*
   • Type: TH2> pot write 1 Y*

*This represents the data captured in step 2.

Note:  All your med settings will have been reset to their default values.

10. Manually re-enter the media settings such as:
• med name
• med laserpower
• med drumspeed
• med sr

Technical contact(s)

Kyle Good

Submitted by

Kyle Good

Date submitted

13 May 2008