Search Knowledge Base

• HP Envy 7855 Duplex Printing Not Working? Solved
  HP • Printing Problems

  HP Envy 7855 duplex printing not working? A repair tech explains driver settings, the duplexer unit, and the borderless printing conflict nobody mentions.

• HP Smart Tank 7602 Fax Not Working? [Fixed]
  HP • Hardware & Maintenance

  HP Smart Tank 7602 fax not working? A repair tech explains the VoIP line problem almost nobody diagnoses correctly, plus 4 other real fixes.

• Canon IJ Scan Utility Not Working? Fix Scanner Driver & Network Glitches
  Canon • Drivers, Software & Firmware

  Is the Canon IJ Scan Utility freezing, failing to open, or saying the scanner is not found? Learn how to fix Twain driver conflicts and network scanner issues.

• Epson Perfection vs Canon CanoScan: Full Photo Scanner Comparison
  Epson • Hardware & Maintenance

  Compare Epson Perfection (V600/V850) vs Canon CanoScan (9000F/LiDE). Compare CCD vs CIS sensors, Dmax, film scanning, Digital ICE, and software.

• Kodak Printer Scanner Not Working? WIA Driver & Firewall Fixes
  Kodak • Connectivity IssuesError Code: Scanner Not Detected

  Is your Kodak ESP or Hero scanner failing to scan? A systems tech explains WIA vs TWAIN drivers, firewall blocks, and scan-to-computer workarounds.