B245/B276/B277/B268/B269 Service Manual 18-Jan-06
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11. Inverter Roller
12. Duplex Inverter Sensor
13. Duplex Entrance Sensor
14. Hot Roller
15. Upper Transport Roller
16. Pressure Roller
17. OPC Drum
18. Middle Transport Roller
19. Duplex Exit Sensor
20. Image Density Sensor
31. Bottom Plate
32. PCU
33. Development Roller
34. WTL
35. Polygon Mirror Motor
36. Laser Unit
37. Toner Supply Bottle Holder
38. Exit Roller
39. 3rd Mirror
40. Scanner HP Sensor
Paper Path
The B269/B277 model has a duplex unit mounted on the right side of the machine.
All models have a by-pass tray.