3 Testing Performing Main Tests Final tests use the PaperPort software shipped with the HP LaserJet Companion Printer Accessory. Tests may be performed only when the scan roller and the image sensor are clean. To clean the scan roller and image sensor, follow the directions under “Cleaning the HP LaserJet Companion Printer Accessory” later in this chapter. System Requirements Connect the Companion to a computer and an HP LaserJet printer that meet the system requirements described in Chapter 1. Initializing Nonvolatile Random-Access Memory (NVRAM) NVRAM should be initialized before performing other tests. NVRAM initialization ensures that the internal memory is in the default mode.
1 Disconnect the power supply from the Companion. 2 Press and hold down [To[Printer] while reconnecting the power supply. The motor will rotate briefly. 3 Release [To[Printer] when the motor stops. The motor will again rotate briefly. Initialization is complete when the motor stops again. EN Testing 3-1