HP 4600 Service Manual - Page 367
Image defects troubleshooting, general - printing blank pages
UPC - 808736060875
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Image defects troubleshooting If specific defects occur repeatedly, print a Print Quality Troubleshooting page and follow the instructions on the page. If you are unable to resolve the problem, use the information in this section to identify the root cause of the problem. Image defects fall into the categories that are listed in Table 7-18 Image defects. Possible causes and recommended solutions for each of these categories are listed in the tables that follow. In general, the items are listed in order from minor repairs to major repairs. Check the items in the order in which they appear. Table 7-18 Image defects Image defect Light image Light color Dark image Dark color Completely blank All black/solid color Dots in vertical lines Dirt on back of paper Dirt on front of paper Vertical lines White vertical lines Horizontal lines White horizontal lines Missing color Blank spots Poor fusing Distortion or blurring Smearing Misplaced image Description More information A very light image is printed. One color is light in an image. A very dark image is printed. See Light image. See Light color. See Dark image. One color is dark in an image. No image is printed. An all black or solid colored image is printed. See Dark color. See Completely blank image. See All black or solid color. Vertical lines of white dots appear in the image. See Dots in vertical lines. The back (non-printed) side of the paper is dirty. See Dirt on the back of the paper. The front (printed) sided of the paper is See Dirt on the front of the paper. dirty. Vertical lines are printed. See Vertical lines. White vertical lines appear in the image. See White vertical lines. Horizontal lines are printed. See Horizontal lines. White horizontal lines appear in the image. See White horizontal lines. One of the four toner colors is not printing. The image has blank spots. Toner is loose on the printed image. See Missing color. See Blank spots. See Poor fusing. The image appears distorted, or colors See Distortion or blurring. seem out of alignment. The image is smeared or dirty. See Smearing. The image is placed incorrectly on the See Misplaced image. page. ENWW Image defects troubleshooting 351