Brother HL-L2350DW how to clean the corona wire
When the LCD shows Drum ! or you have print quality problems.
Steps
- Open the front cover.
- Take the toner cartridge and drum unit assembly out of the machine.
- Slide the green tab on the drum unit gently left to right and back several times to clean the corona wire inside.
- Put the tab back in the Home position, with the arrow on the tab lined up with the arrow on the drum unit.
- Install the toner cartridge and drum unit assembly in the machine.
- Close the front cover.
A tab left out of the Home position can leave a vertical stripe on printed pages.
Source: Routine Maintenance: Clean the Machine: Clean the Corona Wire Source: Routine Maintenance: Clean the Machine: Clean the Corona Wire, p. 201
Used for
- Drum !: The corona wire on the drum unit needs cleaning, or the drum unit is not seated.
- Faint or light print
- Page prints all black
- Black lines or toner stains down the page
Other HL-L2350DW procedures
- How to clear a paper jam in the paper trayWhen the control panel or the Status Monitor reports a jam in the paper tray (Jam Tray 1).
- How to clear a paper jam at the back of the machineWhen the LCD shows Jam Rear.
- How to clear a paper jam inside the machineWhen the LCD shows Jam Inside.
- How to clear a paper jam in the 2-sided trayWhen the LCD shows Jam 2-sided.
- How to clean the drum unit with Drum Dot PrintWhen the printout has dots or other repeating marks at 94 mm intervals.
- How to clean the paper pick-up rollersWhen the machine has paper feed problems.
- How to replace the toner cartridgeWhen the LCD shows Replace Toner or Toner Ended.
- How to replace the drum unitWhen the LCD shows Replace Drum.
- How to cancel a print job from the control panelWhen a job is stuck, incomplete or prints garbage.
- How to print a test pageWhen a print quality problem appears.
- How to print the Printer Settings pageWhen you need the machine's current settings on paper.
- How to print the Network Configuration ReportWhen you need the IP address, subnet mask, node name or MAC address, or the link status.
- How to print the WLAN ReportWhen the wireless connection fails and you need the TS-xx error code.
- How to connect to Wi-Fi with the control panel setup wizardWhen you set up the machine on a wireless network from its own control panel.
- How to connect to Wi-Fi with WPS push buttonWhen the wireless access point or router supports WPS (PBC).
- How to connect to Wi-Fi with WPS PIN codeWhen the wireless access point or router supports WPS and you want to enter a PIN.
- How to connect to Wi-Fi when the SSID is not broadcastWhen the access point or router does not broadcast its SSID.
- How to set up Wi-Fi Direct with the one-push methodWhen the mobile device supports Wi-Fi Direct.
- How to set up Wi-Fi Direct manuallyWhen the mobile device supports neither Wi-Fi Direct nor WPS.
- How to repair the network connection with the Network Connection Repair ToolWhen a Windows computer cannot print to the machine because the machine has the wrong IP address or Subnet Mask.
- How to reset the network settingsWhen network settings, including the password and IP address, must return to the factory defaults.
- How to reset the machine settingsWhen settings you changed, including the Setting Lock and the language, need to return to their defaults.
- How to factory reset the machineBefore you dispose of the machine.
- How to check the firmware versionTo read the installed firmware version from the LCD.
- How to check the serial numberWhen you need the machine's serial number.
- How to check the remaining life of toner and drumTo see how much life the toner cartridge and drum unit have left.
- How to turn on Toner SaveTo reduce toner use when lighter print is acceptable.
- How to turn Quiet Mode on or offTo reduce printing noise at the cost of print speed, or to restore normal speed.
Sources
- Online User's Guide, HL-L2310D / HL-L2350DW / HL-L2357DW / HL-L2370DN / HL-L2375DW (UK English). Brother Industries, Ltd. Document cv_hll2310d_uke_oug_c, revision c (PDF created 2021-01-31), 249 pages, en-GB. download.brother.com (PDF). Listed on the manufacturer's support page. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.