You are diagnosing a problem with a laser printer. When the laser printer prints, each page has white vertical lines running down it.
What should you try first?
1. >>Shake the toner cartridge.
2. Reinstall the printer driver.
3. Clean the photosensitive drum.
4. Replace the fuser assembly.
Explanation : When a laser printer prints pages with vertical white lines, it usually means that the toner cartridge is clogged so toner is not being distributed evenly. The first thing to try is to shake the toner cartridge to try to remove the clog. If that does not work, replace the toner cartridge.
The problem is probably not caused by a dirty photosensitive drum. A dirty or scratched photosensitive drum can cause a mark on the paper that repeats at regular intervals. A dirty drum will not normally cause white vertical lines.
You should not replace the fuser assembly. A problem with the fuser assembly would generally result in smudges or blotches on the page. It is not the first thing to check when diagnosing white lines on the page.
The problem is most likely not related to the printer driver. The printer driver is responsible for translating application and operating system commands to a language the printer can understand. Vertical white lines are caused by an ink distribution problem, not a translation problem.
Objective: Printers and Scanners
