Brother Intellifax 750

Brother Intellifax 750 Fax Cartridges and Rolls FAQ

How to fix vertical lines on sent faxes and copies?

Those black vertical lines are usually caused by white out or dirt on the scanner unit. To solve this, follow the steps below:

Step 1. Disconnect first your telephone line, and then unplug your fax machine's power cord.

Step 2. Pull the control panel by pulling it towards you.

Step 3. Get a lint-free cloth and moisten it lightly with an isopropyl rubbing alcohol or water. If there's no lint-free cloth, you can instead use an alcohol prep pad. Do not use rough or an abrasive cloth like napkin or tissue to not damage the glass on your fax machine.

Step 4. With your lightly moisten lint-free cloth, clean the scanner cover glass found on the front base of your fax machine, small gray rollers.

Step 5. Clean the white pressure bar on the control panel's bottom underside.

Step 6. Wait for the cleaned areas to dry, and then close the control panel.

Step 7. After all this, plug back in the machine's power cord and reconnect the telephone line.

Step 8. Try to print some and see if the issue is still there.

Sent faxes and copies are all black.

Step 1. Press the Help/Q. Scan button that is located at the control panel's top, right hand side.

Step 2. Unplug both the telephone line and power cord, and then lift the control panel up to open it.

Step 3. Using a lint-free cloth lightly moistened with an isopropyl rubbing alcohol or water, clean both the white pressure bar and scanner glass. You can also use alcohol prep pad if lint-free cloth is not available.

Step 4. Wait for all the cleaned areas to dry before you proceed.

Step 5. Once the cleaned areas are dry, plug the fax machine back and reconnect the telephone line.

Step 6. Once the fax machine is on with the date and time visible on display, run a print test. If the black lines are no longer visible, your issue is fixed but if the black lines are still visible, proceed to the next step.

Step 7. Lift the control panel up, and then lift the blue levers located on either side of the top cover to release it.

Step 8. Lift the ribbon up to remove it out from your fax machine.

Step 9. Clean the fax's print head using a lightly moistened lint-free cloth. It is the copper-colored strip found at the base of your fax machine. Do not touch it with your fingers.

Step 10. Once done, reinstall the cartridge, then close the top cover and front cover respectively of the fax machine.

Step 11. Try to run a print test If the issue is still there, contact your machine technical service.