точно сказать не могу, но у большинства Хюлетов код 52 ....
1. Loss of beam detect
2. Improperly seated jr defective toner cartridge.
3. Laser shutter blocked or damaged.
4. Damaged fiber optic cable.
5. Defective Laser PCA.
6. Faulty Laser Scanner Cable Connectors.
7. Defective Laser Scanner Assembly
...Удачи.
