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79 Error
Recommended action
1. Turn off the power by using the power switch, wait at least 30 seconds, and then turn on the
power and wait for the product to initialize.
2. If a surge protector is being used, remove it. Plug the product directly into the wall socket. Use the
power switch to turn the product on.
3. Replace the formatter.
Document Feeder Jam
Recommended action
1. Clear the jam.
2. If the error persists, replace the document feeder pickup roller assembly.
Document Feeder Mispick. Reload.
Recommended action
1. Remove the paper from the document feeder tray, and then reload it.
2. If the error persists, try the following solutions:
a. Replace the document feeder pickup arm assembly.
b. Replace the document feeder core assembly.
c. Replace the document feeder assembly.
Door open
Recommended action
1. Make sure that the door is completely closed.
2. If the error persists, try the following solutions:
a. Replace the print cartridge drawer.
b. Replace the DC controller.
55.4 error. Turn off then turn on.
Recommended action
1. Verify that the connectors on the DC controller are seated firmly.
2. Replace the DC controller.
204 Chapter 6 Engineering details ENWW