HP LaserJet P4510 Service Manual - Page 341
Solve image quality problems, Image defects, Table 7-10
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Solve image quality problems Image defects These examples identify the most common print-quality problems. If you still have problems after trying the suggested solutions, contact HP Customer Support. Table 7-10 Image defect examples Problem Image example Solution Light print (partial page) 1. Make sure that the print cartridge is fully installed. 2. The toner level in the print cartridge might be low. Replace the print cartridge. 3. The paper might not meet HP specifications (for example, the paper is too moist or too rough). See Paper and print media on page 47. Light print (entire page) Specks Dropouts 1. Make sure that the print cartridge is fully installed. 2. Make sure that the ECONOMODE setting is turned off at the control panel and in the printer driver. 3. Open the CONFIGURE DEVICE menu at the product control panel. Open the PRINT QUALITY submenu and increase the TONER DENSITY setting. See Print Quality submenu on page 30. 4. Try using a different type of paper. 5. The print cartridge might be almost empty. Replace the print cartridge. 6. Clean the product paper path. 7. Replace the transfer roller. Specks might appear on a page after a jam has been cleared. 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 paper path on page 95.) 3. Try using a different type of paper. 4. Check the print cartridge for leaks. If the print cartridge is leaking, replace it. 5. Clean the product paper path several times. 1. Make sure that the environmental specifications for the product are being met. (See Operating environment on page 502.) 2. If the paper is rough, and the toner easily rubs off, open the CONFIGURE DEVICE menu at the product control panel. Open 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.) 3. Try using a smoother paper that you know will work in the product. 4. Replace the transfer roller. ENWW Solve image quality problems 327