Actions

1.Restart your printer. Then calibrate the scanner, as indicated in Scanner maintenance on page 156, and repeat your scan. Turn the original 90 degrees if possible before rescanning.

2.If the problem persists, analyze pattern 3, modules A through E, of the diagnostic plot. Call HP support and report an “object replication“ issue if you see the kind of error shown on the right.

Clipping or incorrect scale factor when down-scaling in copies and prints

When doing copies or prints (from USB, Embedded Web Server, or printer driver), the scaling setting is available with various possible options. If you are experiencing problems related to border clipping, or it seems that your print has lost the scale-factor adjustment, please read this section carefully in order to select the best value for the scaling setting in future jobs.

●Precise scaling: In this case, the content of the original image is scaled by the percentage factor that you have selected. For example, in an original CAD image with a 1:100 scale, if user selects scale to 50%, the printed plot will have an accurate scale of 1:200. Nevertheless, in the case of down-scalings when selecting a fixed percentage, some clipping of the marginal content of the plot may occur, as it is impossible for the printer to print up to the borders of the paper.

●Scale to fit into page size: In this case, the content of the original image is scaled by the percentage necessary to make sure that all the content is correctly printed and no clipping occurs. Nevertheless, in the case of down-scalings when selecting fit to page, the scale-factor adjustment may not be an integer divisor of the original. For example, in an original CAD plot with a 1:100 scale on A2 paper size, if user selects scale to fit on A3 paper size, the scaling factor will not be exactly 50% and the scale of the printed plot will not be 1:200 exactly. However, the plot will be printed completely without clipping any content.

Incorrect edge detection, mostly when scanning tracing paper

Tracing or translucent papers can be scanned with good results, although totally transparent papers are not supported. Nevertheless, the resulting image may have extra margins or some clipping of the content in some situations when detection of the edge of the paper is not accurate, which may also happen when scanning plain paper if the glass plate is dirty. In order to avoid these undesired effects, please follow these recommendations.

Actions

1.Carefully clean the scanner’s glass plate and the original to be scanned with a cloth. Turn the original 90 degrees if possible and re-scan it afterwards. Remember to select Translucent as the paper type at the scanner if your original is translucent.

2.If the problem persists, please calibrate your scanner, and re-scan your original again afterwards.

3.If the problem persists in the case of translucent paper, attach a sheet of white paper to the back of the original to be scanned. Remember to select White paper as the paper type for the scanner in this case.

218 Chapter 23 Troubleshooting scan-quality issues

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