Question about HP LaserJet 9500n Printer

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Power Issue HP 9500n

We have a 9500n printer that will not power up. we have swapped power cables and outlets, to kown good power cables and outlets, and it still will not power up. have pushed the power button on and off a few times. we think it maybe a fuse, but not sure. any ideas before we go tearing open the printer?

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Hi did you have a power surge before this problem? Or did you pull the power cord out of the wall socket before the system fans had shut down? If the answer to the above is yes then unfortunately you have blown the power supply board. The only way to get the machine working again is to replace the board.

If the answer is no then as you may have blown the power board it could be simple as the power switch is faulty or open the back of the machine and check the power board it is the one with the power supply input attached. I cannot remember if there is a fuse but using a continuity tester test the fuses if any.

Thanks J

Posted on Jan 27, 2008


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Posted on Jan 02, 2017


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Actually, if the manual says it's the fuser, it's probably the fuser. I haven't had this problem myself, but circuit boards coming before the fuser are not indicative of anything.

Again without personal experience with this specific part; I would suggest buying one locally rather than on the internet, open the packaging very carefully, and take it back to the store if it doesn't fix the problem.

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What i would suggest would be to reset your printer:

***Perform a hard reset***

Follow these steps to reset the product.
-Turn the power off.
-Unplug the power cord and the data cable from the product.
-Unplug the power cord from the wall outlet.
-Reconnect the power cord to the product and wall outlet, and then turn the power on.
-Print a self-test page again and check the print speed.
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Good luck,

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My HP office 7310 all-in-one says "warming up"


Here are some solutions that can help you resolve the issue.

Check the scanner light.
-press start copy color in the control panel of the printer, make a copy of any document you have, while doing that slightly open the lid to check if the light is visible, if the scanner moves withoout a light, contact the HP support and have it serviced. If there is a light, make sure that the printer is connected directly to a power outlet not to a power strip (this is to ensure that ebough electric currect is flowint to the printer). Repeat the scanning to check if the problem persist, if it does try another power outlet. If still the same try restart the printer, after restarting, while the printer is on, remove the power cable on the back of the printer then unplug it to the power outlet wait for about 15 - 20 secs then plug the cable to the outlet and to the back of the printer, then try scannin again. if still the same then do partial reset of the printer. Remove the power cable press and hold the # and number 3 keys while doing it reconnect the power cable then try to scan again, if the issue didnt resolve anything have the printer serviced by HP.

Hope this will resolve the issue.

Thank you for choosing fixya.

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Printer all led on when i give the printing


From HP website:

All lights are on


The product experienced a fatal error.

  1. Unplug the power cable from the electrical outlet.
  2. Wait for 30 minutes, and then plug the power cable into the electrical outlet.
  3. If you have completed all the steps listed above and are still experiencing a problem, service the product.

Visit the website above for more possible problems/solutions...

Good luck and best regards,

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I have the hpcolorlaserjet 9500n shows error code 50.6, how to solve

50.6 error is an open fuser heating circuit
between the fuser and low-voltage power supply.
Problem could be the fuser, the low voltage power supply
or the DC Controller.
The 1st thing to do is replace the fuser. If you have another one.
You should really call a printer tech to look at it.

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ERROR 59.06M

This error appears after the message Conditioning Drum is displayed and then after one page is printed. Conditioning Drum occurs approx every 100 pages printed. The 59 errors can appear either after the first message was posted to the front panel or after seven messages were displayed. Power cycling the printer can clear this error in the short term.
but at the end the printer will need service, here are the parts needed to fix the issue,Process cartridge drive assembly and the Ribbon cable between DC Controller and Print Driver

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The error message "83.0180" shows that an EIO error has occured.
Perform the following workaround and see whether the issue still persist.
1. Ensure that the printer is connected directly to the wall outlet.
2. Turn off the printer and then power on and see whether the issue persist.
3. Reseat the Jetdirect card and see whether the issue still persist.
4. Reseat the jetdirect card on a different slot and see whether the issue still persist.
5. Remove all the accessories from the printer and then power on the printer. See whether the issue still persist. If the issue does not persist, add on the accessories onee by one.
6. Power on the printer and check whether the issue persist, each time an accessories are added.
7. Swap the Jet direct card with a known good jet direct card and see whether the issue still persist.
8. Perform a cold reset and see whether the issue still persist.
To do a Cold Reset:
1. Remove all cables.
2. Press & hold the Test button while applying power & continue to hold it for 10 seconds, then release it for 10 seconds, then unplug it again.
3. Connect all cables & power it back up.
4. Wait 2 minutes for discovery & DHCP. If desired, change the DHCP & address settings.

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The first thing you should do is make sure the outlet you are plugged into is getting power. Then check the power cord -- either with a multimeter or by swapping it with a known good power cord. If the outlet and the cord are both good and you're not getting any power to the printer, the most likely option is a bad power supply unit. Maybe an electrical surge or spike fried something on the board, or maybe it just went bad over time. You can order a new one from HP or from an HP authorized reseller.

Hope that helps

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This seems to be a hardware issue.
Only step which can be tried is a power flee and reset if it works it is good if not you may have to replace the printer.
First power flee.
Unplug the power cable from the All-In-One when the printer is turned On and also unplug it from the wall outlet or surg prtector leave the power cable unplugged for about 1Mins or more atleast.
Then Connect the power cable directly to wall outlet without the surg prorector first and before connecting the power cable to the All-In-One press and hold the # and No 6 button at the same tme and plug the power cord back to the printer without releasing the keys, it should come up with a message as smifull reset if it shows that message then the unit is good if not you may have to replace the unit.

Good Luck

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