The product tracks the amount of use on the customer-replaceable supplies by keeping a page count. The
product prompts the user to replace certain items when a supply is depleted or a specific number of pages
has been printed.
Swapping toner cartridges between products might cause a misrepresentation of supply life values and is not
recommended.
Before performing service
WARNING! Turn the product off, wait 5 seconds, and then remove the power cord before attempting to
service the product. If this warning is not followed, severe injury and damage to the product can result. The
power must be on for certain functional checks during troubleshooting. However, the power supply should be
disconnected during parts removal.
1. Remove all paper.
2. Place the product on an ESD mat (if available). If an ESD workstation or mat is not available, ground
yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.
3. Remove the toner cartridges.
4. Remove the toner collection unit (TCU)
5. Remove the trays.
After performing service
1. Reinstall the toner cartridges.
2. Reinstall the trays.
3. Return all paper to the trays.
4. Plug in the power cable and turn on the product.
5. Perform print-quality tests by printing from a host computer, the scanner glass, and the document
feeder.
Parts removal order
If multiple components must be removed to gain access to an assembly, the first step of the removal
procedure lists all of the components that must be removed to gain access to that assembly. Use these lists
to determine which parts must be removed before removing other parts.
84 Chapter 2 Removal and replacement ENWW
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