Printers and Scanners Troubleshoot | Fix Steps That Work

Paper jams, connection drops, and driver corruption account for roughly eight out of ten printer and scanner failures. Before you call a repair shop or price a replacement, running through a structured printers and scanners troubleshoot sequence catches the real problem in under fifteen minutes. The steps below go in the order that fixes the most cases first — start at the top and work down.

Start With The Physical Check

Loose cables and dead network links cause more printer headaches than any software bug. A quick physical inspection rules out the simplest cause before you touch any settings.

Check the USB cable at both ends — the printer port and the computer port. If the connection feels loose, try a different port. Swap the cable itself if you have a spare; USB cables fail internally without visible damage. For wireless printers, confirm the Wi-Fi light on the printer is steady (not blinking). For Ethernet models, verify the cable clicks firmly at both the printer and the router.

Power cycle everything in order: turn off the printer, unplug it for at least thirty seconds, plug it back in, and restart your computer. This single step clears dozens of transient glitches.

If the connection checks out but the printer still won’t respond, the next likely culprit is the driver software.

Why Does Reinstalling The Driver Fix Most Printer Problems?

Drivers act as the translator between your computer and the printer. When that translation breaks — from a Windows update, a corrupted file, or a partial install — the printer can go completely silent. Replacing the driver with a fresh copy from the manufacturer restores communication more reliably than any other single fix.

On Windows 10 and 11, open Device Manager (press Windows + X and select Device Manager). Expand Imaging devices or Printers, right-click your device, and choose Uninstall device. Restart the computer — Windows automatically reinstalls a basic driver. For the full manufacturer driver, visit the support site for HP, Brother, Epson, Canon, or Lenovo and download the latest driver for your exact model number. On macOS, open System Preferences > Printers & Scanners, remove the printer, and re-add it using the + button. Use Preview to test scanning.

When the driver reinstall still doesn’t work, the print queue or spooler may be stuck with a corrupted job.

Clear The Print Queue And Reset The Spooler

A single stuck document in the print queue can block every job behind it. Open the print queue from your system tray, right-click each document, and select Cancel. Restart the computer to flush the queue completely.

If documents stay in the queue after canceling, the Print Spooler service needs a manual reset. On Windows, search for Services, double-click Print Spooler, and click Stop. Open File Explorer and delete everything inside %WINDIR%\system32\spool\PRINTERS. Go back to Services, start the Print Spooler again, and set its Startup Type to Automatic. This clears even stubborn stuck jobs.

Clean The Scanner Glass And Printheads

Dust and dried ink cause symptoms that look like hardware failure. A dirty scanner glass produces streaks or completely blank scans. Wipe the glass with a microfiber cloth and a small amount of glass cleaner, then dry it completely. Make sure the lid closes flat so the document presses evenly against the glass.

For print quality problems — faded output, missing colors, or horizontal banding — start with the printer software’s Clean Print Heads option, usually under Tools or Maintenance. If standard cleaning doesn’t help, run Deep Cleaning or Power Cleaning.

Run The Built-In OS Troubleshooter

Both Windows and macOS include diagnostic tools that automatically check for and fix common configuration problems. On Windows, go to Settings > Update & Security > Troubleshoot and select Printer or Hardware and Devices. The troubleshooter resets the spooler, checks driver status, and verifies network settings in one pass. On macOS, Apple Diagnostics can identify hardware faults on the printer or scanner side. If you have upgraded your operating system recently, sometimes you need to consider whether it makes more sense to invest in a newer model that natively supports your current OS rather than fighting driver compatibility issues — our roundup of cheap printer and scanner combos for every budget lists tested options that work with Windows 11 and macOS out of the box.

Common Mistakes That Keep Printers Offline

Several small errors cause outsized frustration. The printer may be set to a different default device than expected. On Windows, go to Settings > Devices > Printers & Scanners and click Set as default on your main printer. On macOS, use System Preferences > Printers & Scanners and select your printer, then choose Default printer from the dropdown.

Duplex (two-sided) printing slows every job and causes paper jams on printers not designed for heavy double-sided use. Switch to single-sided or draft mode for routine documents. Overfilling the paper tray is another common jam source — stack the paper squarely and adjust the guides to fit flush. Finally, antivirus or firewall software can block printer communication. Temporarily disable them to test, then re-enable immediately after the test completes.

Problem—Fix Sequence When Nothing Else Worked

If the printer still won’t scan or print after going through the steps above, the order here catches the last stubborn issues. Start with a fresh driver install from the manufacturer’s site using your exact model number — driver corruption that survives a basic restart needs a clean file. Next, reset the Print Spooler manually rather than relying on the queue window. Third, run the Windows Hardware and Devices troubleshooter even if the Printer troubleshooter already ran; the two check different subsystems. If scanning fails but printing works, clean the scanner glass with a microfiber cloth and verify the scanner is selected as the source in your scanning software, not the fax or document feeder. For printers that power on but do nothing, listen for unusual mechanical noises — grinding gears or clicking belts mean a service visit. When hardware truly needs replacing, the best cheap printer and scanner options for 2026 offer reliable all-in-one performance starting under fifty dollars.