Color LaserJet HP 2550

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robt2003 Author

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Color LaserJet HP 2550

My system is a MacPro Mid 2010 running Mac OS X Lion 10.7.5. I am having problems with printing on my hp color laserjet 2550 printer. It is connected via a USB connection on one of the front ports. The issue is that I must power cycle the printer to submit a print job successfully to the printer. Otherwise, I get a message stating "busy waiting for the printer" when submitted the second print job even though the print queue shows the state of the printer to be in a "Printer Ready" state. So, it simply cannot mantain a proper connection with the printer. When the data successfully gets to the printer, it prints as expected.

I am currently using the Apple supplied HP Printer Software Update version 2.11. The installed printer driver is the "HP color LaserJet 2550 series" version 18.4. The problems have persisted no matter how many updates Apple has provided. HP's support basically says that it is supported by Apple and it should work with the drivers that Apple supplies.

Any suggestions would be greatly appreciated. I've tried many of the suggestions on this forum, but none have worked. I noticed that one person simply bought a new printer.

Mac Pro, Mac OS X (10.7.5)

Posted on Sep 30, 2012 9:58 AM

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Answer 1

robt2003 Author

Level 1

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Sep 30, 2012 10:21 AM in response to robt2003

I managed to get some success by rebuilding as described in another posting:

Dominique Simon

Re: HP Laserjet 2550L prints one job then hangs

Jun 15, 2012 2:13 AM (in response to Fami R.)

I had this issue too with my HP 2550. No more printing after the first printjob possible 😟

I managed to get the printer working as expected by removing the hp_io_enabler kext.

sudo -s

mkdir /Valhalla

mv /System/Library/Extensions/hp_io_printerclassdriver_enabler.kext /Valhalla

exit

Wait for the systemcaches to be rebuilt and reboot. You can see if the caches are being rebuilt by opening the Activity Tool, the process is named kextcache.

You need to have the Valhalla Folder in root of course.

Not very mac-like, but it works 😉

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