HP CM6030 Service Manual - Page 630

lines. The test page can use only Tray 2 as the paper source, so make sure that paper is loaded in Tray 2. Figure 7-14 Engine-test button 1 Troubleshooting menu The Troubleshooting menu allows you to run tests that can help you identify and solve problems with the printer. Menu item Event Log Calibrate Scanner PQ Troubleshooting Fax T.30 Trace Fax Transmit Signal Loss Fax V.34 Fax Speaker Mode Description This shows the event codes and their corresponding engine cycles on the control-panel display. See Print an event log on page 510. Use this feature to compensate for offsets in the scanner imaging system (carriage head) for ADF and flatbed scans. You might need to calibrate the scanner if it is not capturing the correct sections of scanned documents. See Calibrate the scanner on page 130. This item prints a series of eight pages that include instructions, pages for each color, a demo page, and a configuration page. These pages can help isolate print-quality problems. See Print-quality-troubleshooting pages on page 571. Print or configure the fax T.30 trace report. T. 30 is the standard that specifies handshaking, protocols, and error correction between fax machines. See Solve fax problems on page 602. Set loss levels to compensate for phone-line signal loss. Do not modify this setting unless requested to do so by an HP service representative because it could cause the fax to stop functioning. See Solve fax problems on page 602. Disable V.34 mode if several fax failures have occurred or if phone line conditions require it. See Solve fax problems on page 602. A technician can use this feature to evaluate and diagnose fax issues by listening to the sounds of fax modulations. See Solve fax problems on page 602 . 584 Chapter 7 Solve problems ENWW