The left side of my paper is faint in color. All color cartridges are okay,

https://www.fixya.com/support/t29784277-afficio_mp2000_faint_copies_ot_new
https://www.fixya.com/support/t26524106-ricoh_mp_2000_photocopying_very_faint

Print quality issues on these models is usually if not always down to the cartridges used. I bet you are using compatible cartridges. If so just buy a set of genuine ones and I bet the quality will be perfect again.

Is the print quality poor on left side for all colors? You may have one bad cartridge. Create a paint document with Yellow, Magenta and Cyan squares on the left side and see if one color prints better than the others. You can also gently shake the cartridges to redistribute toner.

It insists there is a Cartridge problem on the Printer............ In this Case take out the Paper from the Paper Feed Tray........ Unplug the Power Supply from the Printer.......... Remove both the Cartridges from the Printer.......... Now take a size 10 Envelope fold it so that it should become like a thin long strip........ Now Insert that Envelope on the left side corner of the Printer and move it from right to left and left to right as fast as u can for about 10 times.......... Now Insert the Ordinary Papers onto the Printer and insert both the catridges and Turn on the Printer...... Blinking Stopped...........Issue Resolved....... Still Blinking: Remove both the Cartridges take a Paper Towel turn the catridges direction so that u can see a Copper plate with small boxes on it....... Just wipe it twice or thrice with the Paper Towel.......... Now insert it and Power on the Printer and see whether the Lights are still blinking if it is still blinking...... Contact Lexmark at 1-800-539-6275!!!!!

Good Luck!!!!!

Dear
Open the individual carts from the printer and visually observe the density of toner on the developer roller evenly. Some times the cleaning blade of ITB over come the problem.

Before this try to adjust altitude and cleaning on EPM or smart panel from PC.

Thanks.

Run the Print Quality test. Sounds like one of the color cartridges is bad.
Also run the Disable Cartridge test. That will let you test each cartridge by itself.

Before you do that, open the front door halfway. Now you can see each of the color drums in each cartridge. One of them may have a 1/2" stripe on the drum on the left side.

If your printer prints like this:
with the any color printing faintly down the page, then the problem is with the developer blades in the imaging unit. What happens is there are metal blades that meter the amount of toner that gets put on to the drum that makes the image on the paper. The toner is made up of fine particules of plastic. As the printer prints, some of this toner collects on the edge of the developer blades causing less and less toner to make it onto the page making the print look faint.

To correct this problem, you either need to buy a new imaging unit or clean the developer blades. There is a document on the internet that gives a detail instructions on how to do this, but, the link no longer works. I have a copy of this document, I will try to post it if people are interested.

Hi there
Your error message is coming from the Dell Series 5 ink Cartridge. To reset the error message, unplug the printer from the wall. Now remove the power brick from the back of the printer. Wait 60 seconds and then plug everything back in. This usually resets any error messages on the printer. Make sure the Dell Series 5 ink cartridges are intalled correctly by removing them and re-seating them .
Black in left or black side, color in right side or color side

If using a photo cartridge...

Photo cartridge in the black side(left) and color in the color side(right)
Dell Series 5 ink cartridges have a sensor in them that cannot be reset

It is also possible to get a new ink cartridge with a bad sensor. Please take it to the place of purchase for a refund or a replacement one.
Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
All The Best: Pineworks

replace your cartridge, and all should be fine.

Try taking out the cartridges and blot the bottom of the cartridge with paper towel wetted with warm water.Repeat several times.While the cartdigdes are out, use the eraser end of a pencil and gently clean the contacts in the carriage and then clean the contacts of the ink cartridges.