Photosmart C6280 won't print after trying to clear library/startupitems error

Question

I have had a Library/Startupitems error ever since updating my HP software a couple of years ago.  In trying to finally resolve this issue myself, the HP website suggested removing and reinstalling the software.  There is no active link within the HP support pages for a download.  I found a C6200 series driver online, which I've installed, but now I cannot print anything but a test page, and I still have the Library/Startupitems error.  As it is, I cannot even find that file at all to fix the error.
This question was solved.
View Solution.

Answer 1

Hi @Eric_V67 
Since the C6280 doesn't have full feature software and drivers, I can't image the error is stemming from the printer. I can however, provide you with instructions to remove ALL HP software including the HP driver that was provided from the apple software update.
If I understand one of your previous messages, it looks like perhaps you had this printer installed previously and then upgraded the Mac OS. If this is the case, then old software that was previously compatible could be the root cause.
Once the HP software and drivers are removed, you can restart the computer and see if the error persists. The final step would then to be reinstall the Apple software update.
Follow the instructions below. I apologize in advanced this is not a fun task! I will try to make it easy to follow. Some of the files described in the following steps may not be found, if you can't find one of the files or folders on your computer, don't be alarmed.
Move the files and/or folders to the trash, drag and drop
Macintosh HD/Applications//Hewlett-Packard folder
Macintosh HD/Library/Application Support/ - delete all files and folders regarding HP/Hewlett Packard
In Macintosh HD/Library/Caches - delete all files and folders regarding HP/Hewlett Packard
Macintosh HD/Library/Documentation/Help/ - delete all files and folders regarding HP/Hewlett Packard
Macintosh HD/Library/Frameworks/HPServicesInterface.framework
Macintosh HD/Library/Frameworks/HPSmartX.framework
Macintosh HD/Library/Image Capture/TWAIN Data Sources/HP Scan Pro
In Macintosh HD/Library/Image Capture/Scripts - delete all files and folders regarding HP/Hewlett Packard
In Macintosh HD/Library/Preferences - delete all files and folders regarding HP/Hewlett Packard
Move Macintosh HD/Library/Preferences/loginwindow.plist to the desktop. NOTE: Not removing the file loginwindow.plist during the manual uninstall could cause the uninstall to be unsuccessful.
In Macintosh HD/Library/Printer/hp - delete folder
In Macintosh HD/Library/StartupItems, drag the following folders to the trash, HP IO and HP Trap Monitor
In Macintosh HD/Users/USERNAME (this should have a symbol of a house next to it)/Library/Preferences, drag the following folders to the trash: *Any files beginning with com.apple.print, *Any files beginning with com.hp, *Any files beginning with Hewlett-Packard, *Any files beginning with HP or hp
In MacintoshHD/Users/USERNAME/Library/Printers, drag any All-in-One printers listed here into the trash.
Drag the HP icons from the Dock and drop it on an empty space on the desktop. The icon will disappear.
Close all open windows.
Restart the computer. - The startup error may be gone now.
Empty the Trash.
If the error is indeed gone, download and install the HP Printer Drivers for OS X and you should now be able to print and the start up error should cease to exist. If the error is still present, proceed to the next set of steps.
 Remove the print driver and other software from a computer.
From the computer desktop, double-click the Macintosh HD  icon.
Double-click the Library folder.
Double-click the Printers folder.
Right-click the HP folder, and then select Move to Trash.
When prompted, type the Administrator name and Password for the computer, and then click OK. Wait for authentication to complete.
Double-click the PPDs  folder.
Double-click the Contents  folder.
Double-click the Resources  folder.
Locate your printer in the printer list, and then right-click on your printer and select Move to Trash.
When prompted, type the Administrator name and Password for the computer, and then click OK. Wait for authentication to complete.
Click the Trash icon on the taskbar, click the Empty  button, and then click OK to empty the trash.
NOTEBy clicking OK, all items in your trash will be permanently deleted from your computer. To delete one item in the trash, click that item to highlight it, and then click OK.
On the upper-left corner of the computer desktop, click the Apple menu icon, and then click System Preferences on the drop-down menu.
Double-click Print & Scan.
In the Printers list, click your HP printer, and then click the Minus button to delete it.
Restart the computer and now you have a fresh start. - The start up error should be gone now (If the error is gone now, there is no need to proceed to the repair Disk Permissions step, instead simply download the HP Printer Drivers for OS X.
After logging in, Repair Disk Permissions
On the Dock, click  Applications, and then click Utilities.
Double-click Disk Utility.
Highlight your hard drive/partition on the left (by default this is "Macintosh HD").
Click the Repair Disk Permissions button at the bottom of the window.
Once the repair is complete, restart the computer .
Restart the computer - At this point you should no longer see the startup error
Download and install the HP Printer Drivers for OS X, once the install is successful we can then delete the loginwindow.plist from the desktop.
If by chance you still see the error please post a screenshot of it so I can continue to work with you towards a complete solution!! 
How to take a screenshot on a Mac.         How to post a picture on the HP Forums.
I look forward to hearing back from you.
Please click the Thumbs up icon below to thank me for responding.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Sunshyn2005 - I work on behalf of HP