Error Message:

HEAD: couldn't find plate edge due to dirty edge strip on drum

Applies to:

• All

Service Information:

At least 8 false edges were detected and so the firmware has given up searching for the edge. These false edges are often caused by a dirty edge strip. Clean the strip following instructions in the Service Manual. Check the strip for scratches while cleaning. If the strip is badly scratched it may need to be replaced.

False edges can also be caused by a foreign object near the plate edge, such as a slipsheet stuck to the plate.

If the false edges continue after cleaning the strip, a "daom cal" should be performed and saved. Also the position of the edge strip should be checked by performing a "plot edge cal" command followed by a "drum edge" command. The green edge spot should be centred on the bottom half of the strip.

If none of the above seem to be the problem, the problem may be with the head. Someone experienced with diagnosing edge detect problems should be contacted.

Operator Action:

The edge detection strip should be cleaned as soon as possible, following the instructions in the Platesetter Operator's Manual. Contact Creo Service if this error is reported again.

Cause:

• Dirty or scratched edge strip
• DAOM calibration inaccurate
• Slipsheet stuck to plate
• Edge search spot not centred on bottom half of edge strip.

See Also: