Question about Sharp FO 4450 Laser Fax

1 Answer

Poor Print quality - black lines appear on page

I am getting black lines accross the entire page on a received fax. I have about 12,000 copies on the existing drum. If I look at the drum there appears to be the black lines embedded on the drum. Is it time to change the drum? I did not get a warning from the fax itself stating the life of the drum is nearing the end.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 54 Answers
Re: Poor Print quality - black lines appear on page

If you see black lines on the drum, it is very likely that the drum unit is bad. Replace the drum unit and rest the drum counter. If you wait too long, you will cause toner build up in the fuser and will cost yourself several hundred dollars to get it replaced. More in labor than parts.

Use a soft cotton or very soft paper towel and wipe the excess toner from the drun. If there are lines worn in the surface of the drum, then replace it ASAP.

Posted on Dec 04, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

My brother MFC 8500 is receiving alright but everything I send out has a big black streak going down the right side of the page. Confirmation page also has big black streak.

Let me see if I got this right.

The received fax is clean but when you send one out it has a black streak on it.
Cool! So far so good.
Makes sense because for sending, the fax scans the original document and parts of the scanning area could be dirty and so on. Therefore a black streak may appear.
The same black streak would also appear when you make a copy, because the original document must also be scanned.

However for receiving faxes, the machine uses the internal memory and the print engine only, and the same applies to printing the transaction report, which comes from inside via the print engine.
The scanner has no rol in either situation.

Now I'm lost!


May 31, 2011 | Brother Fax Machines

1 Answer

Print is light

If you have replaced your toner and your print quality is still light, your next step is to replace your drum unit, if it has not been replaced lately. This particular drum unit has a life of roughly 12,000 pages.

Dec 27, 2008 | Brother IntelliFax-2820 Laser Fax

1 Answer

Poor fax printout quality

I would say you have a bad drum / toner cartridge.

Stuff you receive with vertical lines is probably the sender's dirty scanner.

Nov 04, 2008 | Canon LaserClass 2060P Plain Paper Fax

1 Answer

Brother IntelliFAX 4100 shooting out blank sheets

The machine told you poor line quality. Try a different phone line to verify. Try it at a friends house to verify it. If you are using Vonage, that is the problem. I have Vonage and every fax I test with has some issues with poor line.

Aug 07, 2008 | Brother IntelliFAX 4100 Laser Fax

1 Answer

Poor quality fax to fax, copy great, computor fax great.

beware of generic toner!
you may need to change out your drum unit
the drum unit may have been contaminated by the staples toner.
also clean laser window under drum cartridge.

Mar 17, 2008 | Brother IntelliFAX 2800 Laser Fax

1 Answer

Poor Quality

If you can copy ok you have effectively ruled out your machine as you have used both the scanning and printing mechanism of the machine.

It will probably be the fax on the other end as if it sends a poor quality page that's all your machine can receive, a poor line can also cause problems if it is from multiple faxes. If so have your provider check the line (you probably hear static on the line).

Mar 17, 2008 | Brother IntelliFAX 2800 Laser Fax

1 Answer

Recipient recieves a black page

I have seen the print cartridge not being seeted cause this problem.
  1. Open the front cover by pulling the cover release buttons toward you, and raising the cover.

    Slightly lift up on the Laser Printer Cartridge and then pull it toward you, but do not remove it.

    WARNING: The Fuser is hot! Use caution when you are working in this area. To prevent damage to the cartridge, do not expose it to light for more than a few minute.

    CAUTION: Do not touch the green Photoreceptor Drum. Scratches or smudges on the Photoreceptor will result in poor copy quality and may shorten the life of the cartridge.

  2. Slide the cartridge back down along the slots until it clicks into place.

  3. Close the Front Cover.
    Then Unplug an replug in the machine.

Dec 11, 2007 | Sharp UX 300 Plain Paper Thermal transfer...

Not finding what you are looking for?
Sharp FO 4450 Laser Fax Logo

401 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Fax Machines Experts


Level 3 Expert

1113 Answers

Norman  J Weimar Jr
Norman J Weimar Jr

Level 3 Expert

5693 Answers


Level 3 Expert

469 Answers

Are you a Sharp Fax Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides