🔧Appliance

ERR-50

Brother · MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax

Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax ERR-50 Error Fix: Machine Error 50 — Scanner Motor Error

Machine Error 50 indicates the flatbed scanner motor or scanner carriage mechanism has failed. The scanner carriage (the bar with the light that moves under the glass) is stuck, jammed, or the motor driving it has failed. This can be caused by a foreign object on the scanner bed preventing carriage movement, a disconnected cable from a previous service or jam clearing, or a worn scanner belt/motor. Open the scanner lid and visually check that the scanner bar can move freely the full length of the glass. Ensure nothing is obstructing its path underneath the glass. Remove and check for any paper fragments stuck in the scanner assembly. Power cycle the printer. If the scanner carriage does not move at all during startup, the motor or motor driver board has likely failed.

High severity2 fixes available✨ Free fix available

Quick Answer

Error ERR-50 on the Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax means: Machine Error 50 — Scanner Motor Error. The top-ranked community fix is “Replace Scanner Motor or Belt Assembly” (medium difficulty, ~45 min, DIY cost: $15-$30). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · inkjet printer

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many inkjet printer repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $150-$250.

Other Brother Models with Error ERR-50

MFC-J1010DW 16 ppm Wireless All-in-One Color Inkjet Printer with Duplex and Mobile Device Support

inkjet_printer · 2 fixes

Other Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax Error Codes

ERR-46

Machine Error 46 — Paper Feed Problem

2 fixes

ERR-48

Machine Error 48 — Head Cleaning Failure

2 fixes

ERR-49

Machine Error 49 — Print Head Temperature Error

2 fixes

ERR-4F

Machine Error 4F — General Printer Malfunction

2 fixes

ERR-A5

Machine Error A5 — Encoder Strip Issue

2 fixes

ERR-AF

Machine Error AF — Waste Ink Absorber Full

2 fixes

MECH-ADF-MISFEED

ADF Document Feeder Misfeed or Multi-Feed

2 fixes

MECH-GHOST-JAM

Ghost Paper Jam — No Paper Found

2 fixes

People Also Ask About Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax Error ERR-50

What does error code ERR-50 mean on a Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax?

Error code ERR-50 on the Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax means: Machine Error 50 — Scanner Motor Error. Machine Error 50 indicates the flatbed scanner motor or scanner carriage mechanism has failed. The scanner carriage (the bar with the light that moves under the glass) is stuck, jammed, or the motor driving it has failed. This can be caused by a foreign object on the scanner bed preventing carriage movement, a disconnected cable from a previous service or jam clearing, or a worn scanner belt/motor. Open the scanner lid and visually check that the scanner bar can move freely the full length of the glass. Ensure nothing is obstructing its path underneath the glass. Remove and check for any paper fragments stuck in the scanner assembly. Power cycle the printer. If the scanner carriage does not move at all during startup, the motor or motor driver board has likely failed.

How do I fix error code ERR-50 on my Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax?

The most successful fix is "Replace Scanner Motor or Belt Assembly" (medium difficulty, ~45 minutes). Estimated DIY cost: $15-$30. HomeMD has 2 community-ranked fixes for this error.

Is error code ERR-50 on a Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax serious?

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Can I fix Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax error ERR-50 myself?

Yes — the top-ranked community fix ("Replace Scanner Motor or Belt Assembly") is rated medium difficulty and takes about 45 minutes. Tools needed: Phillips #0 screwdriver, Plastic pry tool, Multimeter.

How much does it cost to repair Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax error ERR-50?

DIY cost: $15-$30. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax have?

The Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax has 8 other known error codes, including: ERR-46 (Machine Error 46 — Paper Feed Problem), ERR-48 (Machine Error 48 — Head Cleaning Failure), ERR-49 (Machine Error 49 — Print Head Temperature Error), ERR-4F (Machine Error 4F — General Printer Malfunction), ERR-A5 (Machine Error A5 — Encoder Strip Issue), and 3 more.

Which other Brother models have the ERR-50 error?

Error code ERR-50 also appears on 1 other Brother model: MFC-J1010DW 16 ppm Wireless All-in-One Color Inkjet Printer with Duplex and Mobile Device Support. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax have?

The Brother MFC-J4335DW 20 ppm Wireless INKvestment Tank All-in-One Inkjet Printer with Duplex and Fax has 8 other known error codes:

ERR-46 — Machine Error 46 — Paper Feed Problem (2 fixes)
ERR-48 — Machine Error 48 — Head Cleaning Failure (2 fixes)
ERR-49 — Machine Error 49 — Print Head Temperature Error (2 fixes)
ERR-4F — Machine Error 4F — General Printer Malfunction (2 fixes)
ERR-A5 — Machine Error A5 — Encoder Strip Issue (2 fixes)
ERR-AF — Machine Error AF — Waste Ink Absorber Full (2 fixes)
MECH-ADF-MISFEED — ADF Document Feeder Misfeed or Multi-Feed (2 fixes)
MECH-GHOST-JAM — Ghost Paper Jam — No Paper Found (2 fixes)

Which other Brother models have the ERR-50 error?

Error code ERR-50 also appears on 1 other Brother model:

MFC-J1010DW 16 ppm Wireless All-in-One Color Inkjet Printer with Duplex and Mobile Device Support (inkjet printer) · 2 fixes

Ad Space — banner

Replace ADSENSE_PUBLISHER_ID in AdUnit.tsx