HP Color LaserJet Enterprise CM4540 Service Manual - Page 420

Table 3-1 Pre-troubleshooting checklist (continued) 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 correctly placed in the tray? ● Are the paper guides aligned with the stack? ● Is the paper tray correctly installed in the product? Print cartridges ● Is each print cartridge installed correctly? ● Are original HP print cartridges installed? ● Are the cartridges damaged? ITB and fuser ● Are the ITB and fuser correctly installed? ● Is the ITB or fuser damaged? Covers ● Are the right and front doors closed? Condensation ● Does condensation occur following a temperature change (particularly in winter following cold storage)? If so, wipe the affected area dry or leave the product 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 product 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 product. ● Remove the product from the network, and make sure that the failure is with the product before beginning troubleshooting. ● For any print-quality issues, calibrate the product. See Calibrate the product on page 468. 368 Chapter 3 Solve problems ENWW