Alignment and Adjustments6-10 WorkCentre PE 120/120i6.4.4 Machine TestSWITCH TESTThis feature is used to test all the buttons/keys on the control panel. The results are displayed on the LCD eachtime a button/key is pressed.MODEM TESTThis is used to hear various transmission signals to the telephone line from the modem. It is also used to checkthe modem, amplifier and speaker. If no transmission signal sound is heard, the modem piece on the mainboard, amplifier, speaker or speaker harness is faulty.DRAM TESTThis tests the systems DRAM. The results appear on the LCD. If all memory is working properly the LCDreports <OK>.ROM TESTThis tests the systems ROM. The result and the software version appear on the LCD:■ FLASH VER: #.##V■ ENGINE VER: #.##VPATTERN TESTThis prints a test pattern to verify the system is function properly. This is a factory use only test.SHADING TESTThis prints a test pattern to see if the scan quality, determined by characteristics in the CCD, are optimal. Ifimage quality is noticeably poor the CCD may need replacement. This is a factory use only test.6.4.5 ReportPROTOCOL LISTThis list shows the sequence of the CCITT group 3 T:30 protocol during the most recent sending or receivingoperation. Use this list to check for send and receive errors.SYSTEM DATAThis list provides the user system data settings and tech mode settings.
