Xerox C2424 Service Manual - Page 298
Jet Substitution Mode, Enabling Jet Substitution Mode
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Jet Substitution Mode The Jet Substitution Mode provides a temporary solution for print-quality problems when weak or missing jets cannot be recovered. Jet Substitution Mode reduces the maximum imaging speed by 50% or more and has other limitations that affect printer performance. Note Always refer to the infoSMART Knowledge Base to access the latest guidelines for using Jet Substitution Mode. When Jet Substitution Mode is active, adjacent jets are used to print over the area covered by the problem jet to restore image-quality. Enabling Jet Substitution Mode The Jet Substitution Mode is available through a hidden sequence. You must first perform the sequence to add Jet Substitution to the Print Quality Problems menu. To add Jet Substitution Mode to the control panel menu: 1. First press System Setup, and then enter the Information Menu. 2. From the menu, scroll to Troubleshooting, and then press the OK button. 3. Scroll to Print Quality Problems, and then press the OK button. 4. Press and hold the Up Arrow button, and then press the Back button. The Jet Substitution Mode is now displayed on the control panel. To correct print-quality problems, refer to the Eliminate Light Stripes test page to determine which jets are weak or missing. 1. Scroll to Jet Substitution Mode, and then press the OK button. 2. Scroll to Jet Select, and then press the OK button. 3. Scroll to the color for the weak or missing jet, then press OK to select the color. 4. Use the Up Arrow and Down Arrow buttons to select the number of the weak or missing jet, and then press OK to confirm the selection. 5. Select Save Change and Exit, and then press OK to complete the procedure. 6. After substituting a jet, print the Light Stripes Test page to verify the problem has been solved. At the bottom of the page, a Service Mode key summarizes the number of substituted jets for each color. Note The Configuration Page indicates the date when the service mode was entered. The Printer Status Page provides a list of jets in Service Mode. 6-12 WorkCentre C2424 Service Manual