Troubleshooting Tests - Foxjet Marksman MATRIX User Manual

Marksman Matrix & Elite

Troubleshooting Tests

Print Test
This test will determine if the print heads are printing.
1. Place a cloth in front of the print head front plate.
2. Initiate a print cycle by turning on conveyor and tripping the photocell.
3. Check for ink on cloth.
Printed dots on cloth indicate that the system is printing. Check product sensor offset set-
tings, product length, or product margins if print is not seen on carton.
No ink on cloth indicates that the system is not printing. Review system status to determine
other possible causes of system not printing, including a test of the photosensor and
encoder to ensure operation.
Photosensor Sensitivity Test
This test will determine if the photosensor sensitivity is adjusted correctly for the applica-
tion.
NOTE: The test object should be a sample of the actual product.
1. Place the test object approximately ¼ inch in front of photosensor; photosensor should
sense object.
2. Place the test object near the center of the guide rails; photosensor should sense
object.
3. Place the test object on far guide rail; photosensor should not sense object.
4. Check that objects on the far side of the conveyor do not trip the photosensor.
5. Check that color differences in product do not cause multiple photosensor trips at the
farthest sensing distance.
NOTE: If the red LED on the photosensor fails to illuminate when an object is placed in
front of (but not touching) it, this is an indication that the photosensor is disconnected, or
the power supply or photosensor has failed.
2465-623 User Manual Rev E
Section 8: Troubleshooting
Page 86