4 Troubleshooting Basic Troubleshooting Troubleshoot the HP LaserJet Companion Printer Accessory in four general areas: • Power On Self-Test • Paper Movement • Image Transfer • Image Quality When troubleshooting the Companion, follow the order shown. Begin with the Power On tasks and work through the list. The following pages explain the different troubleshooting tasks and how to complete them. EN Troubleshooting 4-1