Use the following procedure to replace the toner cartridge:
1. Remove the envelope feeder if attached. See "Removing the Envelope
Feeder" on page 190 for removal instructions.
2. Pull up on the latch as indicated to open the duplex unit (if installed).
3. Pull on the latch to open Cover A.
4. Open the toner cartridge area cover.
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Chapter 7. Maintaining the Printer