HP Color 9850mfp Service Manual - Page 97

II UNIT EXPLANATION hp Color 9850mfp DRUM UNIT Symbol [27] [28] [29] [30] DRDB/Y DRDB/M DRDB/C DRDB/K M14 M15 M16 M17 PS60 Name Drum potential sensor K (DRPS K) Drum potential sensor C (DRPS C) Drum potential sensor M (DRPS M) Drum potential sensor Y (DRPS Y) Drum drive board Y Drum drive board M Drum drive board C Drum drive board K Drum motor Y Drum motor M Drum motor C Drum motor K Encoder sensor Y1 PS61 Encoder sensor Y2 PS62 Encoder sensor M1 PS63 Encoder sensor M2 PS64 Encoder sensor C1 PS65 Encoder sensor C2 Function or method Detects the surface potential of the drum K Detects the surface potential of the drum C Detects the surface potential of the drum M Detects the surface potential of the drum Y Drive board for the drum motor Y (M14) Drive board for the drum motor M (M15) Drive board for the drum motor C (M16) Drive board for the drum motor K (M17) Drives the drum Y Drives the drum M Drives the drum C Drives the drum K Detects the rotation of the encoder forthe drum Y Manages the drive of the drum motor /Y (M14) There are two sensors, PS 60 and PS61, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder Detects the rotation of the encoder for the drum Y Manages the drive of the drum motor Y (M14) There are two sensors, PS 60 and PS61, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder Detects the rotation of the encoder for the drum M Manages the drive of the drum motor M (M15) There are two sensors, PS 62 and PS63, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder Detects the rotation of the encoder for the drum M Manages the drive of the drum motor M (M15) There are two sensors, PS 62 and PS63, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder Detects the rotation of the encoder for the drum C Manages the drive of the drum motor C (M16) There are two sensors, PS 64 and PS65, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder Detects the rotation of the encoder for the drum C Manages the drive of the drum motor C (M16) There are two sensors, PS 64 and PS65, at opposite of the encoder to cancel the rotational fluctuations due to the eccentricity of the encoder 2-23