Description: Abnormally high subthermistor fuser temperature error.
Remedy: 1. Reinstall the fuser. Check the connector (J704) between the fuser and the product. If it is damaged, replace the fuser drive unit or fuser. 2. Reconnect the connector (J131A) on the DC controller PCA. 3. Replace the fuser.
Code: 51.20
Display: 51.XX Error
Description: The product has experienced an internal error with a laser scanner.
black
Remedy: 1. Turn the product off and then on. 2. Verify that the connectors J61 and J62 on the DC controller PCA are correctly seated. Also verify that the connectors on the laser scanner are correctly seated. 3. If the problem remains, replace the laser scanner.
Code: 51.21
Display: 51.XX Error
Description: The product has experienced an internal error with a laser scanner.
cyan
Remedy: 1. Turn the product off and then on. 2. Verify that the connectors J61 and J62 on the DC controller PCA are correctly seated. Also verify that the connectors on the laser scanner are correctly seated. 3. If the problem remains, replace the laser scanner.
Code: 51.22
Display: 51.XX Error
Description: The product has experienced an internal error with a laser scanner.
magenta
Remedy: 1. Turn the product off and then on. 2. Verify that the connectors J61 and J62 on the DC controller PCA are correctly seated. Also verify that the connectors on the laser scanner are correctly seated. 3. If the problem remains, replace the laser scanner.
Code: 51.23
Display: 51.XX Error
Description: The product has experienced an internal error with a laser scanner.
yellow
Remedy: 1. Turn the product off and then on. 2. Verify that the connectors J61 and J62 on the DC controller PCA are correctly seated. Also verify that the connectors on the laser scanner are correctly seated. 3. If the problem remains, replace the laser scanner.
Code: 54.15
Display: 54.XX Error
Description: The product has experienced an error with one of the print cartridge sensors.
yellow
Remedy: 1. Open the door to the cartridge tray and slide out the cartridge tray. 2. Inspect the white mechanism on the relevant cartridge. It is located on the right side of the cartridge. 3. Push the mechanism in and out slowly. A black flag will raise up as you push it. If it does not move smoothly, push repeatedly to try to clear any potential obstruction. 4. Push in the cartridge tray and close the door.