Recently a customer was having issues printing invoices from Quickbooks. Actually invoices wouldn’t print at all, however they could print everything else from Quickbooks. After trying everything I could think of short of doing a complete reinstall, I discovered this easy fix.
# Open My Computer or Windows Explorer and navigate to the correct directory below for your version or QuickBooks.
# For QuickBooks 2007: Windows XP – C:\Documents and Settings\All Users\Application Data\Intuit\QuickBooks 2007
# For QuickBooks 2007: Windows Vista – C:\ProgramData\Intuit\QuickBooks 2007
# For QuickBooks 2006 and earlier: C:\Program Files\Intuit\[QuickBooks Version]
1. Locate the QBPRINT.QBP file and delete it. (Note: this file may be hidden by default.)
2. Open QuickBooks.
3. Click the File menu and select Printer Setup.
4. Click any one of the transactions in the Form Name drop-down and click OK. This will re-create the QBPRINT.QBP file. (This does not have to be done for each transaction.)
5. Open and print the transaction that was having problems.
This worked like a charm for me, hope it works for you as well.
via.
Recently I was working on an HP Photosmart C6280 that was throwing a “Ink system has failed” error message. Fortunately the solution is a simple one, however it involves removing a few screws, taking the right side cover off, and replugging in some cables. In other words, do not attempt this if your printer is under warranty as it will most likely void it.
*** Fix your HP Photosmart Printer (Reset Code/Master Reset) ***
- Turn off power and unplug from power source.
- Open right side of printer (looking at the front).
- Disconnect,by pulling gently, both white (or black, in my case) flat ribbon cables off the main circuit board.
- Plug in power source and turn printer on. Wait till you get a error message and push “Ok”.
- Unplug power source.
- Reconnect the flat ribbon cables by aligning and carefully pushing into the conectors on the main circuit board.
- Plug in power source and turn printer on (Printer preparing occurred).
- Voila, the nasty error message 0xc18a0001 “Ink System has Failed” is now gone.
Hopefully this will save you from having to buy a new printer. Let me know in the comments how you made out.
Much credit goes to
HarleyHawk for making this so simple.




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I had some difficulties finding the default username and password for a networked Okidata C3400. Turns out is a bit unique, at least in comparison to most default passwords. Hope this helps.
Username: root
Password: the last six of your printer’s MAC address. Do not include dashes and it is case sensitive.
I didn’t verify this, but it wouldn’t surprise me that this password would also work on the other Oki models such as the C3600, C5650, etc.
Hat tip to Daniel.