Troubleshooting guide for scanner functions not working on a typical MFD.
A multifunction printer can print perfectly and still refuse to scan. That does not always mean the device is broken. Printing and scanning often use different software paths, permissions and network discovery. This guide helps home users and offices isolate the problem before replacing hardware unnecessarily.
Troubleshooting guide for scanner functions not working on a typical MFD.
When scanner functions stop working on a multifunction printer, check the connection, install the full scanner driver, confirm the printer and computer are on the same network, restart both devices, check firewall permissions and test scanning from the brand’s official app or utility.
Recommended models to compare first
Start with a short list rather than every printer in the catalogue. A buyer should compare one affordable inkjet option, one mono laser option and one colour laser option before deciding. This keeps the choice practical while still showing the real trade-off between price, colour, scan features and running costs.
| Model | Best for | Why compare it |
|---|---|---|
|
HP OfficeJet Pro 8123 All-in-One Printer + Genuine HP 925 Ink Cartridges R 3 039 |
Home-office scan checks | Good example of app and driver setup importance. |
|
Canon i-SENSYS MF275dw All-in-One Mono Laser Printer (5621C032AA) R 3 505 |
Mono laser MFD scanning | Useful for document-heavy home office scanning. |
|
Lexmark MX632adwe Mono Laser Multifunction Printer (38S0915) R 19 979 |
Business MFD workflow | A better fit where scanning is part of daily office operations. |
Why can an MFD print but not scan?
Printing may work through a basic driver while scanning needs full software, network discovery, user permissions or a scanner service. If the scanner is missing, reinstall the full HP, Canon, Brother, Epson or Lexmark software for the exact model.
This is common after a Windows update, router change or new laptop setup. The device may appear as a printer only, not as a scanner. For official driver checks, use trusted support pages such as HP Support, Canon Support or Brother Support.
When should you suspect a hardware problem?
Suspect hardware only after connection, driver, app, permissions and scanner-glass checks have been completed. Strange noises, repeated hardware errors, a stuck scan bar or failure from the printer’s own control panel may point to a physical issue.
If the scanner is vital to your work and downtime is costly, compare stronger office devices such as Lexmark MX632adwe Mono Laser Multifunction Printer (38S0915) or dedicated business scanners. Heavy scanning teams should not rely on a basic home all-in-one if scan workload has grown.
How should South African buyers compare prices?
Compare the total ownership cost, not only the first price you see. The best multifunction printer is the one that balances printer price, ink or toner price, paper handling, scan workflow, user count and delivery needs. A cheaper device can become expensive if it slows the office down.
On ElectroGuy, you can compare all printers, inkjet printers, laser printers, scanners and printing consumables in one place. That matters because a buyer may start with a printer question and then realise the real issue is toner yield, scanning volume or paper handling.
| Buyer need | Best starting category | Why |
|---|---|---|
| Light home colour | Inkjet multifunction | Lower entry price and flexible colour documents. |
| Daily black documents | Mono laser multifunction | Sharper text and stronger document workflow. |
| Business colour | Colour laser multifunction | Better office colour, speed and team use. |
| Mostly scanning | Scanners | A dedicated scanner may be better than a basic MFD. |
How to troubleshoot an MFD scanner that is not working
Use a step-by-step process so the printer matches the real job, not just the search result. A clear buying process prevents overpaying for features you will not use and prevents underbuying a device that cannot handle your document workload.
- Restart the printer, router and computer.
- Confirm the printer and computer are on the same network.
- Check whether printing works from the same device.
- Install the full scanner software for the exact model.
- Allow scanner permissions in firewall or security software.
- Test scanning from the official brand app.
- Try USB temporarily to separate network problems from scanner problems.
- Check the scanner glass, feeder and error messages.
Which brands are worth comparing?
HP, Canon, Brother, Epson, Lexmark and Oki are the main names shoppers should compare for multifunction printer decisions. HP covers OfficeJet and LaserJet ranges, Canon covers PIXMA and i-SENSYS, Brother is practical for small-office value, Epson is strong for ink tank printing, while Lexmark and Oki suit heavier office environments.
Brand reputation helps, but the model line matters more. A basic HP DeskJet should not be compared as if it were an HP LaserJet Enterprise. A Canon PIXMA and Canon i-SENSYS serve different buyers. Brother ink tank, Brother laser and Lexmark enterprise printers are also built for different workloads. Use brand as a filter, then compare the exact model, SKU, price and consumables.
For trusted background on printing and connectivity standards, useful references include ENERGY STAR imaging equipment, Mopria mobile printing and Apple AirPrint. These are informational references, not competing retail links.
Why buy through ElectroGuy?
ElectroGuy is built for buyers who want premium tech options online without guessing about price, delivery or support. Product pages show the model name, brand, price, image and category path so customers can compare printers in a structured way before checkout.
Orders are online only. Standard delivery is free in South Africa, and typical delivery is 2-3 business days after payment clearance and order processing. If a buyer is comparing printers for a business, school, home office or admin desk, the best next step is to open the linked product pages and compare two or three models side by side.
Common questions before buying
Why does my printer work but scanner not work?
The print driver may be installed while the scanner software or network scan service is missing.
Can Wi-Fi cause scanner problems?
Yes. Weak Wi-Fi, guest networks and router changes can stop scanner discovery.
Should I replace the printer if scan fails?
Not immediately. First reinstall software, check connections and test from the official app.