Repair information 4-49
7558-xxx
To install the new carrier (B):
Warning: Ensure that the carrier is installed evenly and uniformly in the assembly, or spillage may occur.
1. Open the appropriate bag, and dump the appropriate carrier into the appropriate assembly.
2. Rotate the gears in the assembly to evenly distribute the carrier (B).
Warning: Ensure that the two seals are properly positioned in the assembly before replacing the top cover
(A), or spillage may occur which may lead to print quality problems.
Warning: Ensure that the four plastic tabs in the top cover (A), are inserted into the four holes in the
developer unit or the carrier (B) will be ejected from the developer unit assembly which will result in carrier
contamination and print quality problems.
3. Replace the top cover (A).
4. Perform the ATC sensor setup and adjustment. Go to “Sensor (ATC) setup” on page 4-457.
Developer housing (C) removal
1. Remove the printer front door. See “Printer front door removal” on page 4-13.
2. Remove the transfer belt cleaner. See “Transfer belt cleaner removal” on page 4-178.
3. Remove the waste toner box.
4. Remove the four photoconductor units.
5. Remove the four toner supplies.
6. Remove the operator panel left cover. See “Operator panel left cover removal” on page 4-10.
7. Remove the operator panel right cover. See “Operator panel right cover removal” on page 4-11.
8. Remove the operator panel front cover. See “Operator panel front cover (MFP) removal” on page 4-8.
9. Remove the printhead retract door. See “Printhead retract door removal” on page 4-145.
10. Remove the inner cover. See “Inner cover removal” on page 4-4.
11. Remove the inner plate. See “Inner plate removal” on page 4-98.
12. Remove the ATC sensor PCB bracket. See “ATC sensor PCB bracket removal” on page 4-29.
13. Remove the waste toner auger chute. See “Waste toner auger chute removal” on page 4-194.
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