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P-37 (bizhub C650i/C550i/C450i)

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Malfunction typePH optical system dirt
Malfunction codeP-37
Malfunction detection timingSOS signal is not detected even once while the PH contamination detection control is being performed.
Relevant parts-PH unit
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between the PH unit-relay CN307-BASEB CN17E for proper connection and correct as necessary.
  2. Check CPUB for proper installation and correct as necessary.
  3. Replace the PH unit. (Part# AA2JR71500)
  4. Replace CPUB. (C650i Part# AA7NH02P03 / C550i Part# AA7PH02P01 / C450i Part# AA7RH02P02)
  5. Replace BASEB. (Part# AA2JH02005)

L.2.17 (Link to the Field Service Manual)

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