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51.10 51.11 51.12 51.13 Error on HP Color LaserJet 5500 5550

Any of these error codes (51.10 51.11 51.12 51.13, 51.20, 51.21, 51.22, 51.23) points to a failure with one of the laser scanner assemblies on the HP Color LaserJet 5500 and 5550 series.  To solve these error codes, replace the corresponding laser scanner.  Sometimes when the laser scanner fails you will also hear loud noises (often higher-pitched noises like screeching sounds); the noises can be another sign that the laser scanner needs replacing. 

The laser scanner is a common failure part on this model printer. There are four laser scanners in this model, one for each toner color (cyan, magenta, yellow, black). The actual assemblies are the same part for each color. 

The error code meanings are as follows:
51.10 or 51.20 points to the Black laser scanner
51.11 or 51.21 points to the Cyan laser scanner
51.12 or 51.22 points to the Magenta laser scanner
51.13 or 51.23 points to the Yellow laser scanner

Please note when replacing that there are 4 laser scanners one for each color.  Make sure you select a laser scanner that fits your exact model (either the Color LaserJet 5500 or Color LaserJet 5550)., see below.

You can purchase a replacement laser scanner here:

Purchase here:   Laser Scanner Assembly for HP Color LaserJet 5500 series

Purchase here:   Laser Scanner Assembly for HP Color LaserJet 5550 series

Call us with any questions -- 866-352-7108.