Error Message:

DRUM: Extra Tach A pulse detected

Applies to:

• All

Service Information:

Should only occur during drum init. Counter that is in the MPE LCA has cover run and is indicating a count greater than 35999. Make sure that encoder type is correct (drum tpr). Clean index mark on encoder, clean entire encoder, check index pulse using scope & procedure 73-0106A

Check / replace encoder cable.

Align encoder, (procedure 73-0106A)

Replace MPE.

Replace back plane.

Operator Action:

Resume.

If problem persists, and you have been shown how to clean the encoder disc and you have the encoder cleaning procedure 73-3289A, use encoder cleaning kit 04-0014A to brush off the encoder disc. If that does not help then wipe disc off with LUMINEX cloth, Lastly use Creo Encoder Cleaner to clean the disc using a new Texpwipe TX609, then dry off with a new Texwipe, then polish with clean part of Luminex cloth.

If the problem persists, call Creo Response center.

Cause:

• Should only occur during drum init. Counter that is in the MPE LCA has cover run and is indicating a count greater than 35999.

See Also: