imageCLASS MF445dw prints horizontal lines evenly spaced on left. How can I fix this?

Bobcannonmf445d — Sat, 13 Jun 2026 03:29:35 GMT

Re: Mf445dw prints horizontal lines evenly spaced on left. How can I fix this?

DerrickL — Sat, 13 Jun 2026 00:29:18 GMT

This is an inkjet printer forum and yours is a laser printer, but I can offer some possible causes.

Horizontal lines evenly spaced on the left side of prints from an MF445dw are often caused by a dirty or damaged transfer roller or toner flaking off onto the paper path. Try cleaning the transfer roller and running the built-in "Clean Fixing Assembly" maintenance routine; if the issue persists, check the paper path for toner buildup or replace the transfer roller.

Causes of Horizontal Lines in MF445dw Prints

Horizontal lines that are evenly spaced on the left side of prints from the MF445dw can be attributed to a few common issues:

Dirty or Damaged Transfer Roller: The transfer roller may have accumulated dirt or may be damaged, leading to improper toner application.
Toner Flaking: Toner may be flaking off during the printing process, causing lines to appear on the paper.

Steps to Fix the Issue

To resolve the problem, follow these steps:

1. Clean the Transfer Roller

Turn off the printer and unplug it.
Open the printer to access the transfer roller.
Use a lint-free cloth and isopropyl alcohol to gently clean the transfer roller.
Ensure that no residue is left on the roller.

2. Run the "Clean Fixing Assembly" Routine

Turn on the printer.
Navigate to the maintenance menu.
Select the "Clean Fixing Assembly" option.
Follow the prompts to complete the cleaning process.

3. Check for Toner Buildup

Inspect the paper path for any toner buildup or debris.
Use a soft brush or a vacuum to remove any loose toner particles.

4. Replace the Transfer Roller (if necessary)

If cleaning does not resolve the issue, consider replacing the transfer roller.
Refer to the printer's manual for instructions on how to replace this componen

Re: Mf445dw prints horizontal lines evenly spaced on left. How can I fix this?

Bobcannonmf445d — Mon, 15 Jun 2026 15:18:13 GMT

I’m not sure what the transfer roller is. The blue roller in the cartridge?

It looked clean. I installed a new cartridge and no more lines so I guess I’m good to go. , thanks DerrickL

topic Re: Mf445dw prints horizontal lines evenly spaced on left. How can I fix this? in Office Printers

imageCLASS MF445dw prints horizontal lines evenly spaced on left. How can I fix this?

Re: Mf445dw prints horizontal lines evenly spaced on left. How can I fix this?

Causes of Horizontal Lines in MF445dw Prints

Steps to Fix the Issue

1. Clean the Transfer Roller

2. Run the "Clean Fixing Assembly" Routine

3. Check for Toner Buildup

4. Replace the Transfer Roller (if necessary)

Re: Mf445dw prints horizontal lines evenly spaced on left. How can I fix this?