Brother MFC-L3710cw Drivers, Vertical Lines, Wi-Fi Issues, and Grinding Noise
Brother MFC-L3710cw Drivers, Vertical Lines, Wi-Fi Issues, and Grinding Noise
People land on this page thinking the MFC-L3710cw’s problems are driver-related because the printer can install, appear in Windows, and occasionally accept jobs—but real failures persisted even after reinstalling drivers or resetting software. What follows are field notes on what actually happened as users chased drivers or software fixes, including cases where the behavior remained unresolved or changed only under conditions unrelated to drivers.
Problem: Printer not responding to jobs from PCs
What users observed: Some reported that the MFC-L3710cw did not print jobs sent from PC applications, despite jobs showing as “sent” or “spooled.” The device was visible in the system, but did not execute the print job.
What was tried: The affected users tried driver reinstalls and removing/re-adding the printer in the OS interface. The jobs continued to queue with no execution or error response from the machine.
How this played out: The printer remained silent to job execution without any change in behavior after software reinstall attempts, indicating the failure did not clear with driver rollbacks or updates.
Problem: Black and blue prints streaks in the middle of the page
What users observed: Initial blurry black output progressed into clear edges with a faded center band. After replacing all drum units, black and blue improved on the sides but still appeared washed out in the middle. New toner cartridges did not correct the fading. Cleaning the belt unit also made no difference.
What was tried: Multiple drum replacements, swapping back to original OEM drums, installing new toners, and cleaning the belt assembly. None of these restored full density across the page.
What this turned out to be: Contamination on the internal LED printhead array. The LED unit inside the upper cover had accumulated residue affecting exposure consistency.
Where this sometimes ended: After wiping the LED unit with a dry, lint-free cloth, print density returned to normal, and the fading band disappeared without further parts replacement.
Problem: Loud grinding noise during computer print jobs
What users observed: When printing from a connected computer, the machine emitted a harsh grinding sound but still completed the job. Test prints initiated directly from the printer panel did not produce the same noise.
What was tried: Drum units were replaced first under the assumption that the noise originated there. Swapping full drum kits temporarily reduced the issue.
What this turned out to be: A failing cyan toner cartridge was causing the mechanical grinding.
Where this sometimes ended: Replacing the cyan toner cartridge resolved the grinding completely. Neither the drivers nor the drums was the root cause.
Problem: Printer repeatedly goes offline over Wi-Fi
What users observed: The printer showed as connected to Wi-Fi, but Windows and mobile devices repeatedly reported it offline. It would briefly reconnect after removal and reinstallation, then drop again after one or two prints.
What was tried: Driver reinstallations, printer removal, and repeated restarts did not stabilize the connection.
How this played out: Direct Ethernet connection to the router eliminated the issue immediately, suggesting instability in the wireless connection path rather than a driver fault. The problem did not recur while wired.
Problem: Constant rear paper jams after fuser replacement
What users observed: After replacing the fuser film, the printer began jamming at the rear exit path. The left edge of the paper caught on a roller guide, resulting in crumpling. Roughly one out of eight prints was completed successfully.
What was tried: The fuser was removed and reinstalled to rule out installation error. Jams continued.
What this turned out to be: Excess contact pressure in the fuser assembly.
Where this sometimes ended: Switching the rear pressure lever from “A” to “Envelope” reduced fuser pressure and eliminated the jams. Printing stabilized without replacing the fuser again.
Other devices showing similar behavior:
- Scans your system for missing or outdated drivers
- Downloads and installs the correct versions
- Creates a restore point before making changes