HP 5100 Service Manual - Page 220

Table 46. Gray background Possible cause Action Media does not meet printer 1. Print a few more pages to see if the problem corrects itself. specifications or is stored 2. Turn over the stack of paper in the tray. Also try rotating the paper 180°. improperly. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended media and to store it correctly. Inside of the printer is dirty Clean the inside of the printer (see chapter 4). Install a new toner cartridge if (toner might have leaked out it is leaking. of the toner cartridge). Printer's operating Make sure that the printer's operating environment meets the specifications. environment does not meet the specifications. Printing on envelope seams. Move the text to an area that has no seams. If you are not printing on seams, Printing on an envelope try a higher toner density setting. seam can cause a background scatter problem. Wrong toner density setting. From the print-quality menu on the control panel, increase the toner density setting. Make sure EconoMode is off. Faulty toner cartridge. Replace the toner cartridge. High-voltage connector springs are dirty or defective. The high-voltage connectors are mounted on and above the dc controller and protrude into the toner cartridge cavity. Check the springs for functionality. Clean if dirty, replace if defective or missing. High-voltage circuitry is defective. Replace the dc controller. 218 Troubleshooting Q1860-90918