Question about Panasonic KX-FL501 Plain Paper Laser Fax

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Poor print quality

Just took the 501 out of storage and when I receive or copy, the print always has areas of missing information, like something is on the drum. (runs all the way down the page) I've changed the drum and toner and it's in the same place on both drums. Is their a glass area where the laser reads that could be crudded up? Any other suggestions? Thanks, Jim

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Re: poor print quality

Remove the drum unit from the machine, you will see a glass called **** glass under the drum unit. if that glass is dirty, just clean it with alcohol and cotton.

white lines is the cause if that part is dirty.

call us at 02 3633636
Pantronics International Corp.
manila, Philippines

Posted on Mar 11, 2008

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Re: poor print quality


Posted on Sep 23, 2007

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1 Answer

ECM error message

Noise in the phone line, or low signal strength during fax transmission can result in fax failures. Noise or poor signal strength can cause a partial or complete loss of fax information during transmission. When Error Correction Mode (ECM) is on, the receiving fax machine checks the fax information for errors during reception. If the receiving fax machine detects an error, the receiving fax requests that the sending fax resend the information. Resending all or part of the information can make transmission times longer, but helps improve the quality of the received fax.
If the phone line quality or signal strength is extremely poor, sending a fax can fail. Turning off ECM can improve the ability of the product to send a fax successfully when the phone line quality is poor. However, the image quality of the received fax might be poor.
If ECM must be off to send faxes successfully, have the telephone service provider check the phone line quality. For an HP Fax, turning off ECM from the control panel does not necessarily mean that fax transmission will not use ECM. Fax products use ECM as follows.
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Enabling or disabling Error correction mode (ECM)
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  2. Use the arrow buttons (c01073166.jpg ) to select Basic Fax , and then press the OK button (c01335940.jpg ).
  3. Use the arrow buttons (c01073166.jpg ) to select ECM Mode , and then press the OK button (c01335940.jpg ).
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Several recepients cant read my fax, very feint. Is it a fault with my fax?

Try making a copy on your machine and see what the copy looks like.
What are you sending,??? if its a second carbon copy of something...remember what you see is what you get...if the original is poor quality the receiver will get poor quality. You can darken the image slightly...refer to your operators manual.

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Horizontal or vertical? Or do you mean lines of text?
Did you try to copy a document? If the copy is fine, then the fault is on the sending side, or there are severe transmission errors.
If the copy exhibits the same faults as the received faxes, then something is wrong with the printing part of your fax, and solving the problem will depend on the printing technology used (inkjet - clogged heads, need cleaning, or empty ink, needs replacing etc.)

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I will look it up in the morning, I don't have that information with me at the moment, But there is a scanner calibration you can do to correct it.
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sounds like you are using generic drum and toner. try OEM (brother brand). you say copies are coming out completely gray. try printing an internal report from the control panel. if that is gray or received faxes are gray, then the problem is not in your scanner area, and i would wager you are using "generic" supplies.


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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).

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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.
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