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HP LASER PRINTER ERROR CODE 79 - CRITICAL HARDWARE ERROR HAS OCCURRED.
ALL HP LASER PRINTERS
1. Software/drivers, Memory PCA's, Font-MACRO-Personality cartridge, Optional I/O cards or Bad network card.
2. Defective formatter board.
3. Replace formatter board.
4. Replace the I/O card or the Network card..
HP LASER PRINTER 4, 4+, 5
1. Defective toner cartridge.
2. Replace toner cartridge.
3. Software communications error between the network and the printer.
3. Replace the Network Card.
5. Replace the formatter board.
HP LASER PRINTER 4100
1. Temporary communication error.
2. Software error- try printing from a different software.
3. Turn printer off. Disconnect from the network and turn printer back on. If error code comes back with no network cable or parallel cable in printer. You can also upgrade the firmware in the formatter or the network card. But it is better to replace the network card or the formatter board or both and the firmware DIMM chip.
HP LASER PRINTERS 1100, 2100, 4000, 4050, 8000
1. Power cycle the printer on and off.
2. Remove network cable or parallel cable then power cycle the printer.
3. If still have error remove network card.
4. If still have problem change the formatter board, firmware chip, network card.
HP LASER PRINTER 4200, 4300, 4250, 4350
1.Turn the printer off and turn printer on.
2. Reseat the formatter and the firmware dimms chip.
3. Up grade the firmware in the formatter board and the network card.
4. Replace the firmware Dimms.
5. Replace the formatter board.
HP LASER PRINTER 4345MFP, 5025MFP, 5035MFP
1. A critical hardware error occurred.
2. Turn the MFP off, and then turn the MFP on.
3. If the problem persists, reseat the firmware memory card.
4. Remove and reinstall the formatter.
5. Upgrade the firmware.
6. Replace the formatter.
HP LASER PRINTERS 5000, 5100, 5SI
1. Turn the printer off and then turn the printer on.
2. Try printing a job from a different software program.
3. Replace the network cable and cycle power.
4. Remove the network card and cycle power.
5. Remove the dimms one at a time and cycle power.
6. Try using the parallel interface, and printing threw the parallel cable to test the mother board.
7. With the network removed, Perform a cold reset.
8. If network cable is removed change the network card, formatter board, firmware chip.
HP LASER PRINTER 8100, 8150
1. Turn the printer off and then turn the printer on.
2. Try printing a job from a different software program.
3. Replace the network cable and cycle power.
4. Remove the network card and cycle power.
5. Remove the dimms one at a time and cycle power.
6. Up grade the firmware dimms or replace the firmware dimms.
7. Try using the parallel interface, and printing threw the parallel cable to test the mother board.
8. With the network removed, Perform a cold reset.
9. Remove the hard disk and cycle power.
10. If network cable is removed change the network card, formatter board, firmware chip.
HP COLOR LASER PRINTER 4500, 4550
1. Temporary error.
2. Software error.
3. Replace the firmware DIMMS
4. Replace the jet direct card.
4. Replace the formatter board.
HP COLOR LASER PRINTER 4600, 5500
1. A critical hardware error has occurred.
2. Turn the printer off and then turn the on.
3. Reseat the formatter and the Dimms chip.
4. Replace the Dimms chip.
5. Replace the formatter board.
HP COLOR LASER PRINTER 8500, 8550
2. Firmware has detected a hardware failure within the formatter.
3. Replace the formatter board.
HP LASER PRINTER 9000, 9040, 9050MFP
1. Critical hardware error has occurred.
2. Turn power off and then turn printer on..
3. Software error- try printing from a different software.
5. Replace or reseat interface cable / Network cable.
5. Try using the parallel interface .
6. Upgrade the latest firmware.
7. Remove the hard disk and turn printer on and then off.
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