Technical Bulletin PAGE: 2/4
Reissued:12-Feb-14
Model: Taurus-C1a/C1b (D074/D075)
Step 2:
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 been resolved?
Yes : Go to step 3.
No : Go to step 4.
Step 3:
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.
Note
Increasing the value in SP3-820-022 will reduce the toner yield.
If the machine produces high P/J, the effect brought from this SP modification
may not be enough.
It is recommended to monitor for a while to verify the effect.
Step 4:
Is the s/n of the development unit smaller than the following?
Originally installed in mainframe : TP0130500289
Procured as service part : TP213050057
Yes : Replace with the development unit of the latest type.
No : Replace the developer.
Print the image showing the problem. Has the problem been resolved?
Yes : Finished
No : If the problem persists, contact your supervisor.
Note
If the symptom is severe and appeared shortly after installation, it is probable that
the development unit was damaged during transport. In such a case, replace the
affected development unit with the development unit of the latest type.
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