6-12 WorkCentre C2424 Service ManualJet Substitution ModeThe Jet Substitution Mode provides a temporary solution for print-quality problemswhen weak or missing jets cannot be recovered. Jet Substitution Mode reduces themaximum imaging speed by 50% or more and has other limitations that affect printerperformance.NoteAlways refer to the infoSMART Knowledge Base to access the latest guidelinesfor using Jet Substitution Mode.When Jet Substitution Mode is active, adjacent jets are used to print over the areacovered by the problem jet to restore image-quality.Enabling Jet Substitution ModeThe Jet Substitution Mode is available through a hidden sequence. You must firstperform the sequence to add Jet Substitution to the Print Quality Problems menu. Toadd 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 todetermine 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 ormissing 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 hasbeen solved.At the bottom of the page, a Service Mode key summarizes the number ofsubstituted jets for each color.NoteThe Configuration Page indicates the date when the service mode wasentered. The Printer Status Page provides a list of jets in Service Mode.
