Black streaks on copies from bypass tray and tray w/thick paper
I've had tons of people trying to figure this problem out on my Gestetner DSc435.
We are getting streaks of black on copies that are printed on heavier stock, i.e. 65lb. and even on lighter weight paper. We've changed the fuser and the black drum on many occasions and we still have the problem. It's strange; however, that it doesn't always do this...especially on paper smaller than 8 1/2 x 11.
Can you shed some light on this for us?
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Re: black streaks on copies from bypass tray and tray...
Most likely you may of had a toner spill awhile ago and the toner may be biult up with in the paper path and it is draging in it. Also, it may have to do with the drum pick off claw unit. The paper may be rubbing against the unit with thicker paper. I would have your service person clean the whole paper path of lose toner and if they can bring another drum unit to test if the problem is in the drum unit it self. Good Luck
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Sure it say that exactly never heard that before doesn't say "Replenish paper"? or does it give a code or jam indication
Is there any paper on it does this happen when printing or copying ? Trying to print paper or envelope? Do the draws work OK? If printing send the print job to the machine first the when the copier states replenish paper for the bypass tray put the paper there. insure your printer perfrancies match your setting on the copier for the bypass tray, such as THICK 1 or what ever
well could be several reason incorrect paper size incorrect paper weight are you running Thick 1 or Thick 2 to paper. Do you know how to read paper weight? on out side of the paper package is words 20lb or 36lb mite also see the something like 75 g/m2 that is the weight of paper in the metric world (Every one else except the GOOD OLD USA.:):):) we use the lb. system . select paper on the control panel and make sure the paper weight matches most paper copy are putting both lb. and metric but if it is only metric then use the control panel to figure it as you select the thick 1 or 2 you will see the g/m2 on the control panel, if you using paper off the shelve and don't know then call the company where you get the paper from and ask them. Are using the bypass tray make sure that you follow the icon on the screen when it says load paper in the by pass tray does the little icon show portrait or landscape. if you using legal size paper did you pull out the extention tray to allow additional sensor to come into play for the longer paper. Does you print properties on the computer screen match what is in the draws? IF the paper come wrapped an only has lb. # then you will not find it on the control panel you need to get your operation manual out in that manual will be a chart that show what lb. # equals what thick 1 or thick 2.
This is normal. The cardstock is fed from the manual feed or bypass tray and when selected the duplex option goes away. Many manufacturers do this....meaning they do not allow duplexing from the bypass tray. For the same reason they do limit automatic duplexing to standard or near standard papers. Cardstock is specifically excluded from duplexing obviously due to it's thick nature and when duplexing the paper has to be turned over and go thru paper paths that are not suitable for thick paper. If you must make a 2 sided copy using cardstock you will have to run the sheet thru the machine 2 times, also known as manual duplex.
Hope this helps.
Do the streaks appear when you use the contact glass or just when you use the Automatic feeder? If both, then you need to replace either the (drum unit) or the fuser roller(s). If it just happens through the auto feeder, then lift up the "feed-in section" (left side) and clean the narrow scanner glass.
Also, check the the paper thickness are correct.
On the [Setup] tab, select [Bypass Tray] in the [Paper source tray:] list, and then select [Thick] in the [Paper type:] list
On the [Paper] tab, select [Bypass Tray] in the [Input Tray:] list, and then select [Thick] in the [Type:] list.
copy and paste the link into your browser. If I could be of further assistance, let me know. If this helps or solves the issue, please rate it. Thanks, Joe
I would suggest calling a professional on this one. The jamming problem you are describing is probably the rubber feed tires in each tray that pick the paper up. They need to be replaced. If you could get the parts, you MIGHT be able to do this...however....the other problem is much more involved. It could be that you only need a drum cleaning blade. This is the blade that cleans the unused toner from the drum. But it could also be the drum itself, the developer, or the fuser. And it sounds like it could use a good vacuuming on the inside. Do not clean the drum. If the drum is still in good shape, cleaning could change that. Drums are very prone to scratch. I would call a professional....tell him or her: the model of the copier, and to bring feed tires, a drum cleaning blade, and a vacuum.
Have you tried specifying the paper type and weight INSTEAD of the tray. Set the tray properties first, then print. If you leave it on auto tray it will use the tray that matches your paper type and weight.