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HP Designjet L25500 Printer series - Page 101

HP Designjet L25500 Printer series
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Continuable and Non-Continuable Error Codes 93
System Error Codes
Check that power is going to the IR Sensor, a good indication of this is the blue LED lights if the
sensor is pointing to an object warmer than 30C
Check if the Curing IR sensor is dirty and requires cleaning, use the cleaning procedures described
in the User’s Guide while observing all safety precautions while working in the area of the heaters.
Check the position of the IR sensor is correct, if it is pointing to a position other than the substrate this
will cause an error.
Perform the IR sensor diagnostic check “8.4 Curing IR sensorPage 170, to check the values being
detected by the IR sensor. Replace the Curing IR sensor if required Page 510.
Replace the Heaters Control Assembly Page 465.
If there is power going to the Curing heater, but the heater does not come on, replace the Curing
Heaters Page 515.
Check the quality of the AC line going into the printer is within operational specification.
SE Code: 16.08:00 - Curing System fans not connected
Problem Description:
The array of Curing System fan(s) is not connected.
Corrective Action:
To confirm that none of the fans are working perform the service test 2.4 Page 129.
Check the cables from the Curing Fans to the Printmech are not damaged and are connected.
Replace the PrintMech Page 482.
SE Code: 16.09:00 - Curing System fans failure
Problem Description:
The array of Curing System fan is not connected or has failed.
Corrective Action:
Perform the service test 2.4 Page 129 to confirm that one or more of the fans is not working.
If none of the fans are working, this would indicate a failure with the PrintMech, or the cables from
the PrintMech:
Check the cables from the Printmech.
If all the cables from the Printmech to the fans are connected, replace the Printmech
Page 482.
If at least one of the fans is working, check if the failed fans are connected, if they are replace the
failed fan (Top Cover Fans Page 349 or Rear Cover Fans Page 351, Curing Fans Page 503.
SE Code: 16.10:00 - Curing Assembly resistors incorrect
Problem Description:
The firmware measures the current through the Burst resistor and the steady resistor, and it checks that one
is greater than the other. If the measurements detected are not as expected this could indicate that the
heaters have been swapped in error.
Corrective Action:
Replace the Curing Heaters Page 515.

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