When print jobs remain stuck in the printer queue despite successful network communication (indicated by successful ping replies) and no issues with paper supply or toner levels, a common reason can be that the first job in the queue requires manual intervention, such as paper to be fed into a manual feed tray. Printers often pause the entire print queue if the first job requires a specific type of paper or manual insertion that hasn't been addressed, preventing subsequent jobs from processing.
References:
* CompTIA A+ Core 1 (220-1101) Exam Objectives, specifically the sections on troubleshooting printers, which include understanding various reasons why print jobs might get stuck in the print queue.
* Knowledge of printer operation and common print job issues, with an emphasis on how printers handle manual feed tray requirements and the impact on the print queue.