HP 4550 Service Manual - Page 214
Troubleshooting process, Pre-troubleshooting checklist
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Troubleshooting process Note The troubleshooting process requires both a mental and hands-on investigation of printer errors and 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. Check the printer for the following before troubleshooting a specific printer problem: Has regular maintenance been performed? Are the maintenance units within their rated life? Does the configuration page reveal any configuration errors? The customer is responsible for checking consumable items, and using consumables that are in good working condition. Pre-troubleshooting checklist The list below describes basic questions to ask the customer to help you quickly define the problem(s). 212 Troubleshooting C7085-90921