HP LaserJet P4510 Service Manual - Page 342
Table 7-10, Image defect examples continued
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Table 7-10 Image defect examples (continued) Problem Image example Solution Lines AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc 1. Print a few more pages to see if the problem corrects itself. 2. Clean the inside of the product and run a cleaning page to clean the fuser. (See Clean the product on page 95.) 3. Replace the print cartridge. Gray background Toner smear Loose toner 1. Do not use paper that has already been run through the product. 2. Try using a different type of paper. 3. Print a few more pages to see if the problem corrects itself. 4. Turn over the paper in the tray. Also, try rotating the paper 180°. 5. Open the CONFIGURE DEVICE menu at the product control panel. On the PRINT QUALITY submenu, increase the TONER DENSITY setting. See Print Quality submenu on page 30. 6. Make sure that the environmental specifications for the product are being met. (See Operating environment on page 502.) 7. Clean the product paper path. 8. Replace the print cartridge. 1. Print a few more pages to see if the problem corrects itself. 2. Try using a different type of paper. 3. Make sure that the environmental specifications for the product are being met. (See Operating environment on page 502.) 4. Clean the inside of the product and run a cleaning page to clean the fuser. (See Clean the product on page 95.) 5. Replace the print cartridge. Loose toner, in this context, is defined as toner that can be rubbed off the page. 1. If paper is heavy or rough, open the CONFIGURE DEVICE menu at the product control panel. On the PRINT QUALITY submenu, select FUSER MODES, and then select the paper type you are using. Change the setting to HIGH1 or HIGH2, which helps the toner fuse more completely onto the paper. (See Print Quality submenu on page 30.) You must also set the type of paper for the tray you are using. (See Select the paper by source, type, or size on page 62.) 2. If you have observed a rougher texture on one side of your paper, try printing on the smoother side. 3. Make sure that the environmental specifications for the product are being met. (See Operating environment on page 502.) 4. Make sure that the type and quality of the paper you are using meet HP specifications. (See Paper and print media on page 47.) 328 Chapter 7 Solve problems ENWW