Faxes I send are reduced in size and have series of black line down right hand side.

Check the baud rate of your transmissions. Slow them down to the slowest setting and send a test fax to a helpful person. Slowly increase the baud rate (communication data speed) and send the fax test. When the fax doesn't show up on the receive site, then step one baud rate speed back, and save the setting.

It could also be your fax that is faulty, or even the receive sites fax, also being faulty.

To test your copy-head, insert a document into your loading section of the fax and press copy. If the copy prints out fine, then you know the head is reading correctly.

It is also possible that the receiver fax (the other end) has a printhead failure.

If you are able to make copies ok, I mean you get a full page of the copy, but when receiving a fax you're getting only half a page that could be a problem with the line. First, let's make sure you have all the settings right. Make sure that you have the phone cable plugged in to the port where it says line at the back of the fax machine with the other end going directly to the wall jack. (If that is a digital phone line that you have, the more that you'll have difficulty in receiving faxes, because fax machines are designed to work on analog phone lines only) Also, try turning Off your Error Correction Mode (could be found either on Basic or Advanced fax settings) If you have an answering machine on the same line with the fax, set it to 2 rings lower than the fax machine's number of rings, that way when a call comes in, the answering machine picks it up first, if a fax tone is heard, fax machine picks up. It is not recommended if you have a voicemail on the same line with the fax, if you do, it's either request to turn it off from the phone company or request for a distinctive ring, then set the distinctive ring by accessing your Advanced fax settings.
If you have all those notes above set, and you're still not being able to receive your faxes, let's check on your line. Try to plug the fax machine to a different wall jack and have someone send you a fax, if you receive the fax, then the wall jack where your fax was previously plugged in to must be faulty. Call your phone service provider for the issue.
If you're still having the same issue with the fax, with it plugged in on a diff wall jack, call the customer care hotline for your product.

When you send a fax (Assume a full page at 100% )...when it is printed at the other end there is now also a "header" printed showing the time, date, who sent it etc etc across the top of the page...now you also have to print your 100% information on the page therefore to do this and still keep it on a standard 11" page...the information is "typically" reduced to about 95% so that it will all fit on the page....if the other person then turns it around and sends it back to you the same thing happens so it now could be reduce by at least 10% or more.

The receiving fax must have legal size paper available and their machine set to auto reduction.

You can change the Transmit Resolution but not the resolution or the quality of the faxes received.

If your machine makes goog copies and prints, the problem is on the sender's side.

This is an excerpt from the troubleshooting section of your machine manual:

The image received on your fax machine was very poor. Contact the person sending you the fax and ask them to change their Transmit Resolution and Type of Original settings. Ask the person to make a copy of the document on their fax machine to ensure that it is working properly. Then ask them to send the fax again. If you still have a problem, try making a copy of a document on your machine to make sure it is working properly

You might have a job stuck in memory. Message window should say 00%. Try this press Function key press 7 key press monitor key slowly 4 times press * key press 6 key scroll down to ALL JOB CLEAR press SET wait for reboot Good Luck

Its the phone line causing the problem. Check the line via the handset, if you hear static sounds you have a bad line. Contact your phone provider and have it checked/fixed.

Also check the feeding of your original by using the copy function. It is possible that you have a feeding issue but I would bet on it being the line.

This maybe down to the other persons fax machine if your copy is coming out perfect try sending it to a different fax number to see what happens.

If the same thing happens press the menu key and you are looking for a heading call setup or machine settings within one of those will be TTI settings and make sure that reduction send is not on.

Hope this helps sorry a little vague but have manual at work

Thanks J

ONE OF THE DOCUMENT SENSOR IS FAULTY OR DIRTY AND IS NOT RESPONDING CLEAN/REPLACE , PROBLEM WILL BE RESOLVED

I would try sending to another source. If the document goes threw the machine and you get a confirmation report saying it was sent, then it was sent. The person on the other end may be having trouble with their machine as well.