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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.
double check to make sure all paper is removed.
On the key pad press P * C * it will bring up another screen enter 14 and press the copy button it will ask you if your sure you want to clear the error select yes and press copy button machine should restart if error code comes back you will need a tech to come out and check the fuser and connections
The following is an extract from the Brother Service Manual that covers your machine:
"Error Code 50 & 51:
The purge cam switch
does not come ON or OFF
even after the purge cam
has been driven by the
specified number of
The manual lists seven different causes, best case being the need to clean part of the mechanism, the worst case being replace the whole main electronics board !
Unless you have very good skills for dismantling such a complicated machine*, your choices are take it to a Brother Service agent who will probably charge you more than a new machine, or bin it - sorry !
* If you want to have a go at dismantling it, the service manual can be bought on eBay for about £5. If you don't want to spend that much, I can supply you a .PDF file copy for £1 - just post back here and I'll sort it out.