Canon iR4570 Series Service Manual page 712

Chapter 15
When HD-CHECK is run on such a sector, repairs will be made, but all data in the sector will be lost. A write-
suspended sector may be repaired only by HDD-CHECK (0); if not TYPE-TYPE=0, the task will be limited to an
FS level check.
If the write-suspended sector happens to be a critical sector that holds a control area, there is no way of repairing it;
you will have to execute HDD formatting.
- Replacing the HDD
1. Turn off the main switch.
2. Connect the new HDD.
3. Start up the machine in safe mode.
4. Connect the SST, and execute full formatting.
5. Using the SST, download the system software (System, Language, RUI).
6. Turn off and then back on the power. (It may take about 5 min for the machine to start up).
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