During the initial phase of troubleshooting a high-end office printer, users report that the printer occasionally produces pages with blurry, smudged images, although most documents are printed perfectly. This occurs with various document types and irrespective of the printing mode selected. Printer maintenance and cleaning routines have been performed regularly, and there are no error messages displayed. Taking into account all user reports and observed printer behavior, which of the following would be the most appropriate initial troubleshooting step?
Factory reset the printer to resolve any software configuration issues that may have gone unnoticed.
Check the printer’s toner cartridges and imaging drums for defects or leakage.
Perform a thorough clean-up of the fuser unit, as fuser issues can cause image smudging.
Adjust the printer's humidity control settings (if available) to see if the issue is environmentally related.
Update the printer firmware to the latest version to address any undiscovered software bugs.
Replace all the paper in the printer with a different brand to eliminate the possibility of using poor-quality paper.