Lexmark c772 when printing it make load Laud noise

SOURCE: Lexmark x 1270 & x1290 printer won't print black after using re-filled cartridges.

hmmm...paperman..that's unusual to say the least..

SOURCE: Printer not working (Lexmark 1200 Series All-In-One)

do uninstalling of the printer driver. reboot your pc, and install the printer driver again..

hope this helps

SOURCE: I have a lexmark e250dn

Here is how to reset the photoconductor kit counter:

1. Make sure the new kit is installed and the printer is turned ON.

2. Open the front panel.

3. Hold the Cancel button in until the front panel LEDs flash.

4. Close the front panel

SOURCE: Lexmark C510 is making grinding noises while printing large jobs

I found another posting stating that the culprit was the black toner cartridge. Sure enough I changed our black cartridge and the grinding noise has stopped. No wonder the grinding noise was not happening all the time only when the black cartridge got low. Thanks for the help!

SOURCE: Lexmark T644 left side of prints faded

pull the toner cartridge out leave the bottom front cover open and bring down the top cover. with a flashlight check to make sure the charge roller is comming down straight if it comes down even. check to make sure the transfer roller has spring tension on the left side if the pring tension is present you will need to clean the flat leading edges of the mirror motor drive inside of the scanner located under the top cover.