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Stained image and uneven gloss due to breakage of torsion spring
pressurizing the collection roller
[Symptom/Question]
In the machine earlier than the following countermeasure cut-inserial numbers in factory, Stained image and uneven gloss may
occur.
[Cause]
The torsion spring, which is used for the primary fixing assembly [1] and the secondary fixing assembly [2], to pressurize the
collection roller may be damaged [a]. If the torsion spring is damaged, the pressure runs short and cleaning performance reduces,
resulting in the above-mentioned symptom.
[Remedy/Answer]
When the above-mentioned symptom occurs, prepare and replace the following parts. Replace the torsion spring both on the
front and rear sides at the same time even if only either of them is damaged.
- New-type torsion spring (front side) : FU2-0419-010
- New-type torsion spring (rear side) : FU2-0420-010
- Washer : XD1-1104-122 (2 pieces)
- Hanarl UD-321: FY9-6037-000
- New E-ring (2 pieces)
[Reference] Photo [A] shows the old-type torsion spring and Photo [B] shows the new-type.
The following replacing procedure is an example when the torsion spring (front side) damage occurs at the primary fixing
assembly. The procedure is the same when it occurs at the secondary fixing assembly
1) Pull out the fixing assembly up to the maximum position and take out the web unit [1] by referring to Service Manual.
[Attention] Perform this work after the heat of the fixing assembly cools sufficiently.
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