• Push in the sides of the NVRAM unit to release the tabs and pull straight out.
3. Install the new NVRAM
After Installing the New NVRAM
1. Connect the power cord and switch the machine on.
2. Enter the SP mode and execute SP5801 (Memory All Clear)
3. Execute SP5825 (NVRAM Download) to download the data uploaded onto the SD card in
SD card slot C3.
4. Switch the machine off and on.
5. Execute SP5990 to print another SMC report. Confirm that all the SP settings have been
initialized.
6. Execute SP3001-002 (ID Sensor Initialization) to initialize the ID sensor.
7. Execute SP5907 (Plug & Play) and enter the brand and model name of the machine for
Windows Plug & Play capability.
8. Set SP 1902 001 (amount of fusing unit web used so far) to the most recent setting (see the
SMC list).
9. For details about SP initial settings, see “Section 5 Service Tables”.
• When you change the NVRAM, you lose all machine settings, and all data on the hard disk.
• If you have a back-up of the NVRAM settings on an SD card from a previous time, then you lose a)
the jobs that were stored on the hard disk after you made the backup, and b) changes to settings that
were made after you made the backup.
• In this condition, customers who are very worried about security must use the Data Overwrite Security
unit to clean the hard disk (use the Erase All Memory function). This is because the files on the hard
disk that you lost are still there.
3. Replacement and Adjustment
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