Troubleshooting

Removing Print Smears

This cleaning procedure eliminates ink smears on prints.

1.On the printer control panel, select Troubleshooting and then press the OK button.

2.Select Print Quality Problems > OK.

3.Select Remove Print Smears > OK.

The printer prints several blank cleaning sheets as it goes through the cleaning process.

Eliminating Light Stripes

This procedure cleans the print head.

Notes:

Do not perform the advanced Eliminate Light Stripes procedure without performing two basic Eliminate Light Stripes procedures first.

Make sure the PostScript printer driver is set to Enhanced print-quality mode.

Before running the Eliminate Light Stripes procedure, print the Light Stripes Test page to check for incomplete or missing ink jets. For details, see Printing the Light Stripes Test Page on page 173.

To clean the printhead:

1.On the printer control panel, select Troubleshooting and then press the OK button.

2.Select Print Quality Problems > OK.

3.Select Eliminate Light Stripes > OK.

4.Select Start Basic Clean Cycle > OK.

The printer will perform a printhead cleaning, which takes about five minutes. The printer then prints a cleaning page and a Light Stripes Test page. If the Light Stripes Test page looks good, you are done. If not, go to step 5.

5.Repeat steps 1–4. Examine the Light Stripes Test page that prints. If there are no weak or missing ink jets, you are done; if there are, go to step 6.

Note: Perform the advanced Eliminate Light Stripes cleaning procedure only once.

6.On the Light Stripes Test page, note the color and number of the weak or missing color stripe.

7.On the control panel, in the Eliminate Light Stripes menu, select Advanced > OK.

8.On the control panel, select the weak or missing color and then press OK.

9.Select the number of the weak or missing jet and then press OK. The printer prints several cleaning pages.

10.After the cleaning procedure is complete, if the problem persists, perform another basic cleaning. If the problem is not corrected, try substituting a nearby functioning jet for the missing jet. For details, see Substituting an Ink Jet on page 173.

172ColorQube 8570/8870 Color Printer User Guide

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Xerox 8870, 8570 manual Removing Print Smears, Eliminating Light Stripes