C392A (bizhub 554e/454e)

Contents

Trouble type	Heating roller temperature sensor contamination (Main of the heating side)
Trouble code	C392A
Rank	A
Detection timing	<bizhub 554e>	When the machine is in standby mode after a predetermined period of time after the warm-up stage is started, detected temperature of the heating roller temperature sensor (TEMS) lower than a given temperature for a given period of time consecutively.
Trouble isolation	–
Relevant electrical parts	• Fusing unit • Heating roller temperature sensor (TEMS) • Printer control board (PRCB)

  (2)Procedure

Step	Action	Control signal	Location of electrical components
1	Wipe the TEMS clean of dirt if any.		–	–
	Clear away a dirt or a foreign object on the sensor with a cotton swab. When a dirt is left even if you cleaned the sensor by above procedure, clear away a dirt or a foreign object on the sensor using a cotton swab dampened with the alcohol. And, wipe off the sensor with a dry cotton swab afterwards.
2	Check the TEMS for installed position and proper connector connection.		–	–
3	Check the connection of the fusing unit.		–	–
4	Check the fusing unit and PRCB for proper connection and correct or change as necessary.		–	–
5	Replace the fusing unitFusing Unit (Part# 545e A2XKR71022 454e A4FJR70322)		–	–
6	Replace PRCBPRCB (Part# 554e A61DH00101 454e A61EH00101)		–	–

• Link to the layout drawings for related parts by each trouble code (S.78. C392A)

Document Information ID D0001134381 Revise ID R000003

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K.3.8.10 (Link to the Field Service Manual)