Hi, DC12 was working fine and then mid-run had image quality problems. In short after some messing around I've been able to determine that the problem is related to the yellow toner system. If I print a color in any color mode apart from black, the print has yellow bands running top to bottom every one and a half inches. From the waste toner bottle and from inspecting the drum it seems like there's excessive yellow toner being deposited. I've replaced the drum with no change of symptoms, I'm now thinking it could be something to do with the rotatary unit (yellow) or too much yellow toner being taken from the cartridge somehow. I'd really appreciate it someone could give a few pointers. Unfortunately I don't have local xerox support otherwise I'd have called them in by now. If any of you have had or heard of a simialr problem, I'd sure like to hear from you. Regards Carl Grainger.
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Re: DC12 - Yellow Banding (top to bottom)
There is a software patch on the Xerox.com site. Once there click Support and Drivers. Once there in the search box enter dc 12 Once to the Support area. Type in Yellow in the search box. That should direct you to the patches. I hope this helps.
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PRINTERCAT :Hi this is Michelle and i will be assisting you.PRINTERCAT :Error CE40:CE40] Image quality control test pattern abnormality(1) Use "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to 576)"to check the abnormal occurring condition for each color.PRINTERCAT :(2) Check "Output value display of image quality sensor / Low-density pattern (05-391-0 to 3)" tocheck if the low-density pattern abnormality occurs for each color. The values under 320 for Y, Mand C, and under 220 for K are defined as low-density pattern abnormality.PRINTERCAT :(3) Check "Output value display of image quality sensor / High-density pattern (05-390-0 to 3)" tocheck if the high-density pattern abnormality occurs for each color and identify the color whichpattern is abnormal. If the value is 630 or above, it is defined as high-density pattern abnormality.PRINTERCAT :(4) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Imagequality closed-loop control / Laser power (08-557)" to "0" (Invalid).PRINTERCAT :(5) Perform "Enforced performing of image quality open-loop control (05-394)".PRINTERCAT :(6) Output the image quality control test pattern (04-270) more than one time and check the patch ofthe color identified in step (3) to see if the image is abnormal (Note).PRINTERCAT :(7) Replace the image quality sensor.PRINTERCAT :(8) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Imagequality closed-loop control / Laser power (08-557)" to "1" (Valid).PRINTERCAT :(9) Perform "Enforced performing of image quality open-loop control (05-394)" and make sure it iscompleted normally. (Error [CE40] does not appear.) Then perform "Automatic gamma adjustment"( Chapter 3.5.1 and 3.6.1).(10) Clear all "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to576)".PRINTERCAT :Please note:Abnormal image:Blank print, Solid print, White banding, Color banding, White spots, Poor transfer, Uneven imagedensity, Faded image (low density), Uneven light distribution, Blotched image.''''''''''??320 or above (Y, M and C)220 or above (K)''??Under 320 (Y, M and C)Under 220 (K)Low-density pattern abnormalityCheck the transfer belt. If the cleaning is poor, correct thetransfer belt around its cleaning blade.'??To (9)''''''??Normal '??AbnormalCorrect the items related to the image.
Always start at the vary center of the screen with Green. Position Red over Green, then Blue over what now will look yellow. If all is perfect except the outside, you will need to adjust "Mid-Size" until the middle is just as far off as the outside lines. Then adjust the main "Size" adustments to match. Go very slow or you can make a mess of it.
Hi again, Ok, I finally got it licked and why you're having the problems and it's fairly simple. It's all based on 2 things but most of all, the order in which you create your planes or grids.
Because the main part of the image is on the front face that is what you want as your Parent face so get that as accurate as you can to start off with. Hold the 'x' key to temp zoom in and get the position as correct as you can. Once you've created you're primary ctrl-click(cmd-click on mac) the mid top point and pull it out then the same for the mid left point. Now if it still has the problem when you paste in the image and drag it onto the primary face then undo the paste. We need to adjust the secondary planes. Select the top plane and in the angle parameter (which should show 270°) change it to 269°. Then change the left planes angle to 89°. Try it now and it should work fine. Then put it back to 270° and 90° again.