Question about Riso RZ310 Duplicator

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Lexmark 4039 10r

Copies come out with streaks, believe drum is dirty. Do not have manual. thanks kinwod

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Dear sir
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For Ricoh: VT/JP-6/JP-12/JP-500/JP-10
For Gestetner: CPI2/CPI7/Stencil ink 217 /CP15/18
For Duplo: 504/51F4/544/744/ND 24

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Posted on Sep 02, 2009

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I'm pretty sure this is a printer not a copier.

Take out the cartridge and turn it upside down, you will see a (Usually) green cylinder, does it have a ring of toner, or does it appear to have been scrathed ?
Take the copy and put it next to the drum, does the lines match? Then replace cartridge. 
If not open back and take out fuser ( two screws for cover and two screws for fuser, are the rollers o.k? replace fuser.

Posted on Oct 26, 2007


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Posted on Jan 02, 2017

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Looks like a dirty, scratched or contaminated drum. Try wiping the drum with a very soft cloth, the streaks should go away but may re-appear. If there are visible marks on the drum that cannot be wiped of with the cloth, the drum will have to be replaced. DO NOT TRY USING ANY SOLVENTS TO CLEAN THE DRUM.

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Its also possible that there is dirt (typically loose toner) on the laser scan window (there's a laser that shines through it to get the image pattern on the drum). That window is often along the bottom of the unit under the drum/cartridge (take the cartridge out and look). The Brother manual I've seen seems to ignore this possibility.

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Nisha... If you haven't done so already, you need to run a few copies off the glass as opposed to through the feeder to determine "where" your problem is. Do the copies of your originals placed on the glass have the same line/streak defects as the ones made run through the feeder? IF NOT, then you probably have some sort of dirt or contamination on the FAR RIGHT side of the glass (ink, white-out, dirt, etc), and the machine is reading that as part of the image and printing it as a line. When running copies through the feeder, the scanner moves to the far right and parks there. Then the feeder moves the original over the scanner on the right side of the glass (the scanner stays still). So if you find the lines evident when using the feeder, but not there when copying off the glass, you need to clean the glass on the far right. IF YES (lines/streaks through the feeder AND off the glass), then your problem is most likely internal of the machine (bad drum in the L50 cartridge, dirty optical scanner, worn fuser rollers, etc) and I hate to say it, but will probably require a service call to rectify it. Sometimes you can actually take the L50 cartridge out immediately after running a few copies, and while holding it up, manually open the spring-loaded drum shutter on the under-side of the cartridge to expose the drum and visually inspect it to see if the line defects on your copies are evident on the drum itself. If so, you will most likely need to simply replace your cartridge and hopefully save a service call. If you can't really tell if the streaks are on the drum itself, then you're back to probably needing a service call. NOTE: DO NOT TOUCH, WIPE, CLEAN, OR OTHERWISE CONTAMINATE THE DRUM WHILE YOU ARE DOING THIS, and do not leave the unit exposed to light for longer than a minute or so, because if the problem isn't evident/obvious with the drum cartridge, you don't want to risk damaging/contaminating it and thereby causing one. Please let me know if any of this was helpful. Thanks.

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