Hello I have to run a risograph tr1510 that have not been used for a couple of years or more. The drum are completely dry. I read this post: http://www.fixya.com/support/t4515933-risograph_rp3700_not_used_couple So I understand that this is not too bad My question to the experts is: what exactly I can do to rigenerate the drums before to attempt to print? What do you suggest? I first try to remove all dried ink with a wd40 oil and then make some test pirnts? Or I do better start with test prints and then finish cleaning with wd40 as described in the post? Thank you. Happy new year to everyone. Bye

My Risograph RZ990 master gets wrinkles at the end of the drum.
If your Risograph RZ990 master is getting wrinkles at the end on the drum, it can be a common issue with Risograph machines that may be caused by several factors. Here are some steps to help diagnose and potentially resolve the problem:
1. Master Roll Condition: Inspect the condition of the master roll itself. Wrinkles can occur if the master roll is damaged or has uneven tension. Ensure that the roll is loaded correctly and that it is not excessively loose or tight.
2. Master Roll Alignment: Make sure the master roll is properly aligned with the machine's drum. An improper alignment can lead to wrinkles during the printing process.
3. Drum Cleaning: Check the drum for any dirt, toner residue, or debris. A dirty drum can cause irregularities in the master's transfer, leading to wrinkles. Clean the drum gently with a lint-free cloth or an appropriate cleaning solution recommended by the manufacturer.
4. Drum Condition: Examine the condition of the drum itself. If the drum is scratched, worn, or damaged, it can affect the master's transfer quality. In such cases, the drum may need to be replaced or professionally serviced.
5. Master Roll Tension: Ensure that the tension of the master roll is correctly adjusted according to the manufacturer's guidelines. Incorrect tension can lead to wrinkles in the master.
6. Master Roll Quality: Check the quality of the master roll itself. If it's old or damaged, it may not feed smoothly, resulting in wrinkles. Consider replacing the master roll with a new one.
7. Temperature and Humidity: Environmental factors such as temperature and humidity can impact the performance of the master roll and the printing process. Ensure that the operating conditions are within the recommended range specified by the manufacturer.
8. Printer Settings: Verify that the printer settings, such as speed and pressure, are correctly configured for the type of master and paper you are using. Incorrect settings can lead to issues like wrinkles.
9. Maintenance Schedule: Follow the recommended maintenance schedule for your Risograph machine. Regular cleaning and maintenance can prevent issues like wrinkles and prolong the life of the equipment.
10. Professional Service: If the issue persists despite your efforts, it may be necessary to contact a professional technician who specializes in Risograph machines. They can diagnose and repair more complex issues and ensure that your machine operates smoothly.
Addressing wrinkles in the master of a Risograph RZ990 machine often involves a combination of proper maintenance, correct settings, and occasionally replacing damaged components. It's essential to follow the manufacturer's guidelines and consider seeking professional assistance if needed to resolve the issue effectively.

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:

1. 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.
2. Check the ink pump: Make sure that the ink pump is functioning properly and that it is not clogged or damaged.
3. Check the ink sensor: Make sure that the ink sensor is functioning properly and that it is not clogged or dirty.
4. Check the ink supply: Make sure that there is enough ink in the supply and the ink is not expired.
5. Check the ink filter: Make sure that the ink filter is not clogged or dirty
6. Check the ink drum unit: If the issue persist, you may need to replace the ink drum unit
7. 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.

replace drum

try cleaning the dry spot with WD40 or penetrating oil to melt down the ink

The drum cylinder of any risograph has a locking position. The drum position should be locked on before puting it back on the machine. After you confirmed the proper position and tried to putting it back and still no progress you do the following.
1. Removed the drum unit from its holder.
2. Use flash light and check inside of the machine. Check a shsft in the middle part of the machine where the drum put on.
Check the position of this shaft and the position of the drum hole where this shaft will put on.
3. Try to rotate this shaft according to the position of the hole of the drum then try to return the drum and put it back again.
4. If the drum won.t go in just half way, removed the drum and check the pressure roller position, if the roller are in highest position This roller in under the drum. If you see it blocking the drum removed the back cover and released the hook lever from pressure lever. You can see this by moving the roller and you will noticed its position,

$80US~~~

You can clean it, thats a good idea but,,(and this is messy) roll back the master.. take out the ink cartridge, use a rod to squeeze some ink onto the area, and smooth it out into the screen with a plastic scraper.. Lay the master back over. Keep scrap paper around and print a big black square and run a couple hundred sheets through.. This will work. Messy but will work. If you don't want to manually put some ink on the area.. Print a large black square and run a couple hundred sheets.. see what that does.

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

lol.. there's no thermal head on a Riso..lol..
Ok..Print a big black square and run the machine maybe 300 prints until it starts pushing ink through, set the machine on darkest setting.. The ink in the screens is just old and sticky.. If you go through a case of paper (5000 sheets) and it still isn't getting better then take off the master and use some varsol and a lint free cloth (LINT FREE!) to dab and clean the whole screen to loosen up the clogged ink.. If that's not working then you really have to take the screen off and clean it first with varsol,, then some soap and water.. You have to be really clean about this because lint or any thing will cause white dots on your print. (hey this happened to me) If you've cleaned it really well you should take a clean scraper and prime the screen area with some fresh ink.. this is messy.. but it will get you going for good..