HP LaserJet 6P - Page 70

LED Display ERROR CODE Description and Recommendation
62.0 Internal Memory
Problem
63 Internal RAM Memory Test Failed
64 Scan Buffer Error
1. Power-cycle the printer.
2. Replace the Formatter PCA.
Table 9. 62/63/64 Internal Memory Error
HP LaserJet 5P Printer Service Supplement
Troubleshooting
63