Epson All-In-One only copies on one side, prints fine from computer.

You try to copy a document and it only has print on one half of the page (left side or right side). Then you try to print from the computer and the unit prints fine.

The two processes use different parts of the all-in-one in when copying or printing.

When you print from the computer all the information comes from the computer and only the printer section of the all-in-one is used and it sounds like there is nothing wrong with the printer section.

When you copy something you are using the printer section, plus the scanner function and possibly the document feeder section. If you are like most of us you put the document in the document feeder and press copy.

If you are only gettting copy on the left side more than likely one of two things are happening. Some units use a double lamp assembly, one on the left and a similar lamp on the right. If your unit has this setup one lamp could be defective or not getting power.

Most units have just one lamp the entire way across the page. It is located under the access panel for the document feeder. If this is your unit you could not get the problem you have with a bad lamp. You would have nothing on the page.

The second possibility would be a piece of paper or perhaps a label stuck on the document feeder, under the access panel, blocking the light path. This is easy to check. Open the paper jam access panel and look for any paper or labels or foreign material in the feeder and clean it all out.

If you do not use the document feeder but instead place the document to be copied on the glass under the cover you are using a different part of the unit than what I talked about previously. Now you are using the lamp from the scanner bed.

I do not believe that I have ever seen a scanner lamp which did not go the entire way across the page. This would mean that you could not have the problem described. Again you would not have anything on the page.

If you check everything I have just mentioned and do not find any problems, such as something blocking the light path or a bad lamp, then the only cause could be a bad memory board on the scanner board. While this could be changed if you have electronic experience, it would be very difficult and beyond the scope of this tip to attempt to explain the process.

Given the low cost of most units now it may be more cost effective to purchase a new unit.

Thanks for using FixYa and for the great rating.

hardrocko