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Check out this little walkthrough I have put together. Adjusting the printer port settings on your computer should take care of it. Sharp Printer Offline Solution
You can download Sharp print drivers directly from this link. Both 32-bit and 64-bit drivers are available for download here on this page along with instructions for getting them installed.
during setup the machine do,nt install toner during calibration 25-2 steps: 1. Execute Simulation 25-01 and verify that the TCD_K value is less than 26. 2. Execute Simulation 7-1 and highlight [DV Check Disable]. 3. Open the Doc Feeder. 4. Place a piece of white paper in the lead edge area of the platen glass covering about 1-2 inches of the lead edge area of the copy. This will prevent jamming in the Fuser Unit. 5. Run 50 sky shots. 6. Check Simulation 25-01 and note the TCD_K value when it stabilizes. 7. Repeat steps 2 through 6 until the stabilized TCD_K value of Simulation 25-01 is 40 or higher. 8. Execute Simulation 7-1 and verify that [DV Check Disable] is not highlighted. 9. Hit CA and make sure machine comes to a ready state. 10. Turn Machine off/on. Make sure it comes to a ready state. 11. Make a copy and check the copy quality. 12. Run Copy Quality adjustment 12a according to the service manual if necessary. Note: TCD_K value of 26 or less will cause the MFP to display F2-40 error code. Remember that the TCD_K Value is inversely proportional to the Toner Concentration. If the TCD_K Value is stabilized at 40 or higher, then the F2-40 error code will not appear. Once you recover from the F2-40 Error Code, the MFP's Process Control will take over and regulate the Toner Concentration.
The problem is that the toner sensor is not recognizing that type of toner. All toner is not the same you will cause more damage to the machine. Use the specified manufacturer toner.
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