HP LaserJet M9040/M9050 Service Manual - Page 309
Media checks, Scanner and ADF checks, Make sure that the document is not damp.
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● The product is not exposed to direct sunlight. ● Non-HP components (such as refilled print cartridges, font DIMMs, and memory DIMMs) are removed from the product. NOTE: Sudden changes in environment can cause image defects and media-handling problems. Always make sure that the product is not exposed to direct sunlight or to heating or cooling vents. Allow time for the product and media to acclimate whenever changing environments (for example, moving from a cold environment to a warm one). Acclimation can take 3 to 24 hours depending on conditions. Media checks ● Make sure that the selected tray contains media that has been properly loaded and adjusted. ● Make sure that the selected tray contains the correct amount of media. ● Make sure that the recommended print media is in use. ● Make sure that the document is not damp. ● Make sure that the document is not dirty. Scanner and ADF checks ● Make sure that the ADF feeder is closed. ● Make sure that the ADF unit is closed. ENWW Troubleshooting process 291
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