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Model:
Taurus-C1a/C1b (D074/D075)
3. 50mm interval Banding
Excerpt from RTB #RD074019a
Cause
Gap between the drum and
development roller fluctuates.
Machine usage conditions
Action
Step1:
Are the markings on the drive gear and coupling gear of the development roller aligned?
Yes : Go to step2.
No : Do the "Development roller Drive gear – Coupling gear alignment procedure"
described in the last part of this bulletin.
Print the image showing the problem. Has the problem resolved?
Yes : Finish.
No : Go to step2.
Step2:
Print out 40 sheets of full page solid fills on A3/DLT in duplex in the affected color to
refresh toner in the development unit. Then, do SP3-011-002 or [0201: Adjust Image
Density] in the [Adjustment Settings for Skilled Operators].
Print the image showing the problem. Has the problem resolved?
Yes : Go to step3.
No : Go to step4.
Step3:
Use the SMC tool (p/n: M0779509) and SP Check Sheet to verify the "average image
coverage ratio" of the jobs run on your customer's machine. If the average is lower than
5%, change the value applied in SP3-820-022 from 0 (default) to 100. This SP setting
enables the system to refresh toner at job end.
echnical
T
Cause
Drive gear and coupling gear
of the development roller are
misaligned.
Development unit is of the old
type (D0742301-03).
Development unit was
damaged during transport.
Toner/developer degradation
ulletin
B
Date:
20-Mar-14
Align the drive gear and
coupling gear. (Step1)
Replace with the latest
development unit. (Step4)
Refresh toner. (Steps 2&3)
Replace developer. (Step4)
PAGE: 10/25
No.:
RD074118
Solution
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