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It sounds like you are experiencing an issue with the red ink drum on your Risograph MZ1070E printer. The error code t44-513 can be caused by several factors, including a clogged or dirty ink drum, a faulty ink pump, or a problem with the ink sensor.
Here are some steps you can try to troubleshoot and potentially fix the problem:
Clean the ink drum: Use a damp cloth or cotton swab to gently clean the ink drum. Make sure to remove any debris or dried ink that may be clogging the drum.
Check the ink pump: Make sure that the ink pump is functioning properly and that it is not clogged or damaged.
Check the ink sensor: Make sure that the ink sensor is functioning properly and that it is not clogged or dirty.
Check the ink supply: Make sure that there is enough ink in the supply and the ink is not expired.
Check the ink filter: Make sure that the ink filter is not clogged or dirty
Check the ink drum unit: If the issue persist, you may need to replace the ink drum unit
Consult the manual: Consult the manual for specific troubleshoot and service information for your Risograph MZ1070E model.
If you are not familiar with these tasks, it is best to contact a professional or Risograph customer service for help with diagnosing and repairing the problem
All you really have to do is put in the ink color you want and run a bunch of prints. Going from a light to dark color like black is fast--like about 3000 prints. Black to light color is going to be a lot more prints. Best is to print something with heavy ink. the more ink you put out the fast it will change color.
Hi,
Try run a hundred copies at slow speed and full density/ pressure.
If that fails get a can of WD40 and spray it under the master, then rub the area with your finger. this will desolve the dryed ink on the drum surface.
Dermot
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