Printed pages are light on both sides of page.

Try this link:
Read the Billing Meter The total number of printed pages can be reviewed at the Printer Control Panel, on the Configuration Page, and in CentreWare Internet Services (CWIS).
Three meters are available:

• Total Impressions
• Color Impressions
• Black Impressions

The billing meter counts the number of pages that were printed properly.

• 1-sided prints, including N-up, are counted as one impression.
• 2-sided prints, including N-up, are counted as two.
  
  NOTE: During 2-sided printing, if an error occurs after one side is printed properly, it is counted as one.
• Color documents converted using an ICC profile on applications with the Color (Auto) setting can print in color, even if displayed in black and white. The data prints in color even if it seems to be black and white data on the Display Screen. In that case, the number of Color Impressions is increased.
  
  NOTE: Grayscale images printed with the composite black setting count as color pages because color consumables are used. Composite black is the default setting on most printers.
• When printing automatic 2-sided printing, a blank page can be inserted automatically depending on the settings in the application. In this case, the blank page is counted as one page.

View the Billing Meters:
IMPORTANT: The Bill Meters track the total number of pages printed for the life of the printer; it cannot be reset.
To view the total number of pages printed:

1. Press the [System] button on the Control Panel.
2. Press the [Up] or [Down] arrow button until "Billing Meters" is selected, and then press the [OK] button. The Print Volume Report will be printed.
3. Press the [Down] arrow button to scroll to the required meter. The number of printed pages is displayed below the name.
4. Press the [Return] button to exit the Billing Meters menu.

http://wss.support.xerox.com/GTConnect/UnifiedAcceptor/AddWebFramework.Main/site/XeroxProductSupport/product/product_wc6505/lang/en-US/region/region_US/source/DND/Xlang/en_US/Xcntry/USA/prodID/WC6505/KBlang/en/#!view-content/ViewContent/View/contentId/x_6130_en-O8884

This is probably due to miss alignment, there is an option of test page which will be scanned to allign the cartridge, if ur's a all in one printer. This test page is printed at the first time and scanned instantly for first time operation.

Thankyou

Do you mean double sided printing? If so this model printer does not have a duplex unit and cannot print double sided prints automatically.
DOUBLY SIDED PRINTING WITHOUT A DUPLEX UNIT
Open your Word document.
Open page 1 - then Print the current page.
Then put the printed page 1 back in the paper tray upside down.Open page 2 and Print the current page (page 2 will beprinted on the other side of the page 1).
Repeat this procedure for the other pages.

This model Canon printer does not have a duplex unit and cannot print double sided printing automatically.
DOUBLY SIDED PRINTING WITHOUT A DUPLEX UNIT
Open your Word document.
Open page 1 - then Print the current page.
Then put the printed page 1 back in the paper tray upside down.Open page 2 and Print the current page (page 2 will be printedon the other side of the page 1).
Repeat this procedure for the other pages.

It depends on which side you want to print on. For transparencies, you want to print on one side only. Most likely, you want to print on the shiny side; essentially as if it were a glossy photo. Load the transparency so that the shiny side gets printed on. Don't know that part? Front loading printers are the easiest to determine which side is printed on. Look at where the paper goes in and where it comes out. Think about it; for single sided printing, the paper isn't being turned around inside; merely rolled around an internal roller, then back out. Watch what happens to the paper the next time you print on a single side. See if the top of the printed page came out first, or last.

The most common designs of front-loaders have the paper come out above where it went in. The paper curls around the bottom of the internal roller and comes right back out on top. Therefore, the printed side started out on the bottom, then curled around the internal roller and came out with the printed side up.

Most front loading printers have the top of the printed page come out first; therefore, the same edge that went in first, got printed on first. With that in mind, if you ever want to print on the unprinted side of a piece of paper (that is already out of the printer), obviously keep the printed side up, but since the top of the printed side came out first, you need to make sure the top goes in first to come out first for the back side.

Your Canon 560 printer has duplex printing, so it is a good idea to run your test to see what happens when printed on a single side, and what happens if you use the duplex-mode. For duplex mode printing, after printing on one side, the printer pulls the paper back in to print the other side automatically. Think about how much space is inside the printer. Depending on how much data the printer can store, either the first page is printed, then the second page, or the second page is printed first, then the first page. It depends on how the printer wants the page to come out. You can run a simple test and see exactly what happens.

Since the printer cannot easily turn the paper around, it merely starts with the opposite end of the first printed side when it prints on the back. If the top of the page came out first for the first printed side, the printer prints the bottom lines of the second page of text working back to the top in reverse order. As a result, the bottom of the page comes out first, with the top coming out last.

Some duplex printers can store so much data that the determine how the second page will look, print it first, then print the first page. Watch to see what yours does.

Worse comes to worse, mark a sheet of paper in one corner, insert it into the printer, then print a document that contains only the period character and see where it is printed. By knowing how you put the paper in, and where the period was printed, you can tell how to handle any situation. By the way, the period character was chosen because it will be so small that most likely you can use that sheet again.

Hello,

Is the whole page you want printed on half the page is just half the data printed? If the whole page is printed on half the paper then the problem is software. If the page only prints the left side or the right side blank on the other side then the problem is most likely the fuser assembly. Can you take a picture of the page and email it to us, we will email you back with what needs to be done next.

[email protected]

the problem is not with the printer but it is with the ink that might be damaged, this is located inside the printer

Hi, You have to remove the Catdriges from the printer and clean both catdriges and the roller. This might sort your problem. Secondly before printing check the pagesetup of the particular file.

Take the toner cartridge out and shake it side to side. What you want to do is "rebalance" the level of toner. Most printing on a page is on the left side, and that usually where a problem like this shows up. Down the center can be the same thing.

If that doesn't fix it, I would try replacing the cartridge.

Do you use OEM? (Factory original) or Aftermarket cartridges?
How many pages has the printer run?

I have a SCX-4100 Samsung, replaced the tonger cartridge, it was working fine for a few hundred sheets of printing, but after that, the left side of the page was printed very light, faded.
If I run the "Clean Drum", it will print a litter better, but still faded.
What can I do to correct this problem?
Thank you
TT