HP Color LaserJet 5500 Service Manual - Page 289

Troubleshooting process NOTE When the printer malfunctions or encounters an unexpected situation, the printer control panel alerts you of the situation. This section contains a pre-troubleshooting checklist to filter out many possible causes of the problem. A troubleshooting flowchart helps you diagnose the root cause of the problem. The remainder of this chapter provides steps for correcting problems. ● Use the pre-troubleshooting checklist to evaluate the source of the problem and to reduce the number of steps required to fix the problem. ● Use the troubleshooting flowchart to pinpoint the root cause of hardware malfunctions. The flowchart guides you to the appropriate section of this chapter that provides steps for correcting the malfunction. Before beginning any troubleshooting procedure, check the following: ● Are supply items within their rated life? ● Does the configuration page reveal any configuration errors? The customer is responsible for checking supplies and for using supplies that are in good condition. Pre-troubleshooting checklist The list below describes basic questions to ask the customer to help quickly define the problem(s). Table 7-1. Pre-troubleshooting checklist Environment Media ● Is the printer installed on a solid, level surface? ● Is the power supply voltage within ± 10 volts of the specified power source? ● Is the power supply plug inserted in the printer and the outlet? ● Is the operating environment within the specified parameters, as listed in Chapter 1 of this manual? ● Is the printer exposed to ammonia gas, such as that produced by diazo copiers or office cleaning materials? ● Is the printer exposed to direct sunlight? ● Does the customer use only supported media? ● Is the media in good condition (no curls, folds, etc.)? ● Is the media stored correctly and within environmental limits? ENWW Troubleshooting process 267