Lexmark M1342
There are visible vertical line(s), streak(s), or void(s) depicted on the printouts.
Ensure the paper loaded in the tray is a supported media.
Print the following printer internal pages
From the MSP, check whether the supply levels (toner cartridge and imaging kit) are low and need replacement.
Remove the supplies (toner cartridge and imaging kit) from the printer.
Separate the toner cartridge from the imaging unit.
Inspect the supplies and replace if necessary.
Disable Quiet mode to improve the print quality output.
LEGACY ID: SO8885
Check the paper settings in the print dialog and in the printer to get clean prints. Reinstalling or replacing the imaging unit may also help solve this print quality issue.
Prevent vertical dark streaks with missing images on your prints by checking the toner cartridge.