HP LaserJet 4350 HP LaserJet 4250/4350 Series - User Guide - Page 167
Control panel message, Description, Recommended action, X ERROR, For help press, To continue
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Interpreting control-panel messages (continued) Control panel message Description 69.X ERROR For help press alternates with 69.X ERROR To continue turn off then on A printing error occurred. 79.XXXX ERROR To continue turn off then on The printer detected a critical hardware error. Recommended action 1. Turn the printer power off and then on. 2. If the message persists, contact an HP-authorized service or support provider (see HP customer care). 1. Press STOP to clear the print job from the printer memory. Turn the printer power off and then on. 2. Try printing a job from a different program. If the job prints, go back to the first program and try printing a different file. If the message appears only with a certain program or print job, contact the software vendor for assistance. If the message persists with different programs and print jobs, try these steps. 1. Turn the printer power off. 2. Disconnect all cables to the printer that connect it to the network or computer. 3. Remove all the memory DIMMs or third-party DIMMs from the printer. Then reinstall at least one memory DIMM . (See Printer memory.) 4. Remove all EIO devices and CompactFlash cards from the printer. 5. Turn the printer power on. If the error no longer exists, follow these steps. 1. Install each DIMM and EIO device one at a time, making sure to turn the printer power off and back on as you install each device. 2. Replace a DIMM or EIO device if you determine that it causes the error. 3. Reconnect all cables that connect the printer to the network or computer. ENWW Understanding printer messages 155