Single-function: MS622, MS621, MS521, MS421, MS321,
B2338, B2442, B2546, B2650, M1242, M1246, M3250
Multifunction: MX321, MX421, MX521, MX622, MB2338, MB2442, MB2546, MB2650, XM5270, XM5263, XM1242, XM1246, XM3250
When printing a black-and-white or monochrome document, the image somehow appears grainy and a bit light. It is also observed that the printed images have small white dots or voids.
Print Defect Sample
Reset the printer's toner cartridge and Imaging unit.
Perform a Power-on-reset (POR).
Print a test page and check if the print quality defect still appears.
Should the issue persist, adjust the tonerdarkness by increasing its value to 10 before printing document. To change the toner darkness, Navigate to: Settings > Print > Quality > Toner Darkness
Still Need Help?
Have the following available when calling Lexmark Technical Support;
Printer serial number
Toner cartridge/imaging unit part number and serial number
LEGACY ID: SO8571