HP Color LaserJet 9500 Service Manual - Page 473

Note Tray 4 light pattern interpretation (LJ 9500) If tray 4 is working correctly, it picks up media from the tray and feeds it to the printer, and the bottom service light flashes regularly every 0.5 second. Table 79. Tray 4 light pattern interpretation Long Short (0.03 Error number/ (1 second) second) meaning Recommended action 3 1 66.11.01 Lift the tray by hand to make sure that it lifts freely. Lifter malfunction Make sure that the paper size plates are installed correctly (in the same corresponding slots) and are not bent. If neither of these is the problem, replace tray 4. 2 1 13.11.11 The media does not reach the sensor. Open the door, Registration sensor and remove the media. Replace the paper pickup delay jam assembly. 2 2 13.11.3B Open the door, and remove the media. Check the Registration sensor sensors, and replace the corresponding FRU. station jam/initial jam 2 3 13.11.31 The media did not reach the sensor. Open the door, Jam sensor delay jam and remove the media. Replace the paper pickup assembly. 2 4 13.11.21 Open the door and remove the media. 13.11.2B Jam sensor stationary jam/initial jam 1 1 Paper path door is Close the door. open 1 2 Media tray is open Close the tray. Wrong-size media is loaded Load the correct size of media, or check the sensors. 1 3 No media in the tray Load media, or check the sensors. If the LED does not come on, replace the paper-deck PCA or the universal power-supply assembly. Tray 4 does not print media (LJ 9500) z make sure that power is supplied to tray 4 z print a configuration page and make sure that tray 4 is listed in the paper-handling options section z run a paper-path test from tray 4 (if the test is successful, the paper-size detection switches might have failed or an incorrect size might be specified in the software program) z make sure that the custom-size switch setting is correct ENWW Chapter 7 Troubleshooting 471