Am unable to print . MESSAGE on screen says check drum cart. I have removed cartridge and replaced and removed drum cartridge but the message remains on screen I have turned it off removed cartridge and drum cartridge replaced switched on but at first it tries to work but can't seem to take paper through then message reappeared on screen. Help please

why toner life end message keep on showing on sp 1200s prints.

Sometimes the fuse in the drum blows but the printer does not register it so it still thinks a new drum is required. You can find new fuses on ebay. Its cheaper than buying another new drum. Also put a new drum in with the power turned off. Once the lid is closed then turn the power back on and then the fuse will blow at the correct time.

AFTER CHANGING DRUM KEEP DOOR OPEN AND HOLD THE CANCEL BUTTON FOR 5 OR 10 SEC. IT WORKED FOR ME

Usually, that message means that your cartridge is dead. Try removing it, clean the electric contacts on it and the ones on the cartridge carrier. Put it back in. If that doesn't help, you will need to buy a new color cartridge.
If you do not have a replacement cartridge, you can still print in, what HP calls "ink backup mode". Simply remove the problem cartridge, and print with the remaining one, in this case, the black one.

• If you remove the tri-color cartridge, printouts will be in grayscale.

The photoev cart is the photo developer cartridge.

See User Reference
http://www.lexmark.com/publications/pdfs/c510/eng/userref.pdf

Understanding printer messages
pages 184 and 185

"Message:
83 Photodev Cart Exhausted

What this message means:
The photodeveloper cartridge is completely used.

What you can do:
Replace the photodeveloper cartridge.
See also: Replacing the photodeveloper cartridge [page 73]

Continuing below
Message:
83 Photodev Cart Life Warning

What this message means:
The photodeveloper cartridge is nearing the end of its life.

What you can do:
• Press Go to clear the message and continue printing.
• Replace the photodeveloper cartridge.
See also: Replacing the photodeveloper cartridge [page 73]

Continuing below
Message:
83 Photodev Cart Missing

What this message means:
The photodeveloper cartridge is either missing or incorrectly
installed.

What you can do:
Correctly install the photodeveloper cartridge to clear the message and continue printing.
See also: Replacing the photodeveloper cartridge [page 73] "

See User Reference
http://www.lexmark.com/publications/pdfs/c510/eng/userref.pdf

Understanding printer messages
pages 184 and 185

"Message:
83 Photodev Cart Exhausted

What this message means:
The photodeveloper cartridge is completely used.

What you can do:
Replace the photodeveloper cartridge.
See also: Replacing the photodeveloper cartridge [page 73]

Continuing below
Message:
83 Photodev Cart Life Warning

What this message means:
The photodeveloper cartridge is nearing the end of its life.

What you can do:
• Press Go to clear the message and continue printing.
• Replace the photodeveloper cartridge.
See also: Replacing the photodeveloper cartridge [page 73]

Continuing below
Message:
83 Photodev Cart Missing

What this message means:
The photodeveloper cartridge is either missing or incorrectly
installed.

What you can do:
Correctly install the photodeveloper cartridge to clear the message and continue printing.
See also: Replacing the photodeveloper cartridge [page 73] "

You need to clean the drum surface as well the charger roller. Removing the paper jammed can caused the surface get the dirty by toner split.

Was the cartridges lexmark factory replacements or was they generic replacement cartridges.

If they are generic cartridges you might want to buy lexmark cartridges because some generic cartridges will not work in some printers

Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.If this does not resolve the issue then try the next steps.

1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges.

Good luck and dont forget to rate me!!!

Error 1102 means cart error. Try cleaning the copper contacts on the cart and the contacts in the printer also. If still fails, then put old carts and check if u still get same error. If u dont get the error then there is a problem with the cart itself. But if you have bought a refilled cart then the print heads on the carts are bad. Needs replacement.