HP 4600 Service Manual - Page 275

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 ■ Is the printer installed on a solid, level surface? ■ Is the printer to particle matter or dust? ■ 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? Media ■ Does the customer use only supported media? ■ Is the media in good condition (contains no curls, folds, and so forth)? ■ Is the media stored correctly and within environmental limits? Input trays ■ Is the amount of media in the tray within specifications? ■ Is the media placed in the tray correctly? ■ Are the paper guides aligned with the media? ■ Is the cassette correctly installed in the printer? Print cartridges ■ Is each print cartridge correctly installed? ETB and fuser ■ Are the ETB and fuser correctly installed? Covers ■ Are the top cover and front cover closed? Condensation ■ Does condensation occur following a temperature change (particularly in winter following cold storage)? If so, wipe the affected dry or leave the printer on for 10 to 20 minutes. ■ Was a print cartridge installed soon after being moved from a cold to a warm room? If so, allow the printer to sit at room temperature for one to two hours. Miscellaneous ■ Check for and remove any non-HP components (print cartridges, memory modules, and EIO cards) from the printer. ■ If hardware or software configuration has not changed, or the problem is not associated with any specific software, contact the Customer Care Center (see chapter 1). ENWW Troubleshooting process 259