HP Q7840A User Manual - Page 238
Performance problems
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Performance problems Problem No copy came out. Copies are blank. The wrong original was copied. Copies are reduced in size. Cause Solution The input tray might be empty. The original might have been loaded incorrectly. The sealing tape might not have been removed from the print cartridge. The original might have been loaded incorrectly. The media might not meet HP specifications. Load media in the device. SeeLoad media into the input trays for more information. Load the original correctly in the ADF or flatbed scanner. See Load media into the input trays. Remove the print cartridge from the device, pull out the sealing tape, and then reinstall the print cartridge. Load the original correctly in the ADF or flatbed scanner. See Load media into the input trays. Use media that meets HP specifications. See Media and trays. The print-cartridge toner-level might be Replace the print cartridge. See Change low. the print cartridge. The ADF might be loaded. Make sure that the ADF is empty. The device software settings might be See the device software Help for more set to reduce the scanned image. information about changing the settings. 226 Chapter 11 Problem solving ENWW