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HP LaserJet Quick Reference Service Manual Page 212

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Noisy Fan 3 (FM3)
Service Note Number:
Associated Part Numbers:
Serial Number Range:
• 115v
USCB000001-USCB099999, USCC000001-USCC011766,
SGCB000001-SGCB099999, USBC000001-USBC015282,
USBC000001-USBC015282, SGBB000001-SGBB099999,
SGBC000001-SGBC015282, NLBB000001-NLBB099999,
• 220v
USRB000001-USRB0999999, USRC000001-USRC006687,
SGRB000001-SGRB099999, SGRC000001-SGRC006687,
NLRB000001-NLRB099999, NLRC000001-NLRC006687,
USQB000001-USQB099999, USQC000001-USQC011106,
USQC000001-USQC011106, SGQB000001-SGQB-099999,
SGQC000001-SGQC011106, NLQB000001-NLQB099999-,
above have a potential for excessive fan noise.
The noise is a result of fan vibration. More specifically, this vibration
causes an increase of resonance between the fan duct and the
formatter shield cover. This intensification of sound may be annoying.
HP has set up a noise kit (5182-5899). It includes a piece
of foam tape and detailed instructions with drawings for correct
placement of the foam tape to eliminate noise between the fan and the
formatter shield.
Verify that the printer is in the serial number range listed. Attach the
foam tape between the fan duct and the formatter shield cover
according to the instructions included with the noise kit.
210 – Summary of service notes and technical tips
C3166A-02 & C3167A-02
Printers with the serial numbers in the range listed
5182-5899/Noise Kit


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