Error 51 X 51 10 51 20 on HP printers

Error 51.XY, 51.10, 51.20 could be seen on these printers: HP 4240, 4250, 4350, P4014, P4014n, P3015... This error indicate that loss of beam-detect occurred.

51.10: Beam-detect error
51.20: Laser error






Solution 1:

• Dowload the last version of the driver

Solution 2:

• Press the "go" button.
• Switch off and on the printer.

Solution 3:

• Reseat connectors between the laser scanner and the DC controller (J83 and J84).

Solution 4:

• Replacer the laser scanner.

Solution 5:

• Replace the DC controller

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