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# Replacing Machine Parts

Replace the paper feed roller, transfer roller, and fusing unit when they are worn.

Refer to the maintenance guide provided with the new items for the replacement maintenance kit.

| Do not remove any covers or screws other than those explicitly mentioned in this manual. Inside this machine are high voltage components that are an electric shock hazard and laser components that could cause blindness. Contact your sales or service representative if any of the machine's internal components require maintenance, adjustment, or repair. Do not attempt to disassemble or modify this machine. Doing so risks burns and electric shock. Note again that exposure to the laser components inside this machine risks blindness.

| Wait at least one hour after power off before replacing parts. Not allowing the machine to cool may result in burns.

| The inside of the machine could be very hot. Do not touch the parts with a label indicating the “hot surface”. Otherwise, an injury might occur.

The maintenance kit contains parts for maintaining the machine.

If the message `"Replacement Required: Maintenance Kit"` appears, replace the maintenance kit.

When the message `"Replacement Required Soon: Maintenance Kit"` appears, the maintenance kit should be replaced soon. Prepare a new maintenance kit.

- You can change the timing that the message appears prompting the user to replace supplies. For details, see “Changing the Timing for Prompting Users to Prepare Replacement Supplies”.

- Changing the Timing for Prompting Users to Prepare Replacement Supplies