HP 2700n Service Manual - Page 194
Troubleshooting process, Pre-troubleshooting checklist - fuser error
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Troubleshooting process When the printer malfunctions or encounters an unexpected situation, the printer control panel alerts you to the situation. This chapter also contains information to help diagnose and solve problems. ● Use the pre-troubleshooting checklist to evaluate the source of the problem and to reduce the number of steps that are required to fix the problem. ● Use the troubleshooting flowchart to pinpoint the root cause of hardware malfunctions. The flowchart guides you to the section of this chapter that contains steps for correcting the malfunction. Before beginning any troubleshooting procedure, check the following issues: ● Are supply items within their rated life? ● Does the configuration page reveal any configuration errors? NOTE The customer is responsible for checking supplies and for using supplies that are in good condition. Pre-troubleshooting checklist The following table includes basic questions to ask the customer to quickly help define the problem(s). General topic Environment Media Input trays Print cartridges Transfer unit and fuser Covers Questions ● Is the printer installed on a solid, level surface (+/- 1°)? ● 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? ● 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, or distortion)? ● Is the media stored correctly and within environmental limits? ● Is the amount of media in the tray within specifications? ● Is the media correctly placed in the tray? ● Are the paper guides aligned with the stack? ● Is the cassette installed in the printer correctly? ● Is each print cartridge installed correctly? ● Are the transfer unit and fuser installed correctly? ● Is the front cover closed? 176 Chapter 6 Troubleshooting ENWW