Windows 10下Xerox DocuColor 250打印机驱动dll异常问题求助

Hey there, let's dig into this crash issue you're hitting—where opening printer preferences from Word or other apps closes the program, with the error pointing to harmony10.dll. That DLL is part of Xerox's printer driver suite, so the problem is almost certainly tied to driver compatibility or corruption. Here are actionable steps to fix it:

• Update or Reinstall the Xerox Printer Driver (Most Likely Fix)
  The harmony10.dll error often pops up when the driver is outdated, corrupted, or using a generic Windows driver instead of Xerox's official build. Here's how to fix it:

  1. Open Device Manager (right-click Start menu > Device Manager).
  2. Expand the Print queues section, right-click your Xerox DocuColor 250, and select Uninstall device.
  3. Check the box that says "Delete the driver software for this device" and confirm.
  4. Download the latest 64-bit driver package for your DocuColor 250 from Xerox's official support resources, and run the installer to set up the printer again. Test opening preferences from Word after this.

• Scan and Repair Corrupted System Files
  Sometimes system-level corruption can affect driver DLLs. Run these commands in an elevated Command Prompt (right-click Start > Command Prompt (Admin)):

  1. First, run sfc /scannow—this will scan and replace any corrupted system files, including potentially damaged driver components.
  2. If SFC doesn't resolve it, run DISM /Online /Cleanup-Image /RestoreHealth to fix the Windows system image itself, which can help with underlying driver issues.

• Reset the Print Spooler Service
  A stuck print queue or misbehaving spooler service can also trigger crashes tied to driver DLLs:

  1. Press Win+R, type services.msc, and hit Enter.
  2. Find the Print Spooler service, right-click it, and select Stop.
  3. Open File Explorer and navigate to C:\Windows\System32\spool\PRINTERS—delete all files inside this folder (these are pending print jobs).
  4. Go back to Services, right-click Print Spooler, and select Start.

• Test App Compatibility Mode
  Older Xerox drivers might struggle with Windows 10 app integration. Try running Word (or the crashing app) in compatibility mode:

  1. Right-click the app's shortcut, select Properties, then go to the Compatibility tab.
  2. Check "Run this program in compatibility mode for:" and select Windows 7 or Windows 8 (these versions often have better driver support for older Xerox models).
  3. Also check "Run this program as an administrator" and click Apply. Launch the app and test printer preferences again.

• Manually Replace harmony10.dll (Advanced)
  If you're sure the DLL itself is corrupted (and the above steps haven't worked), you can replace it:

  1. First, stop the Print Spooler service (as outlined in the reset step above).
  2. Get a clean copy of harmony10.dll (version 2.6.102.0) either from a working Windows 10 machine with the same Xerox driver, or extract it from the official driver installer package (use a tool like 7-Zip to open the installer).
  3. Replace the existing file at C:\Windows\system32\spool\DRIVERS\x64\3\harmony10.dll with the clean copy.
  4. Restart the Print Spooler service and test.

If none of these steps work, it might be worth reaching out to Xerox support—since the DocuColor 250 is an older model, they might have specific patches or workarounds for Windows 10 compatibility.

内容的提问来源于stack exchange，提问作者TheCopyright