Question about Dell 3000cn Color Laser Printer
Dell 3000cn has a vertical white line on print-outs. Drum replaced to include all toners and cleaning pad but issue has not been resolved.
Copied from the Dell community forums:
This is from a previous post and may help with your problem. I have printed 1000's since I came up with this fix with no recurrence of any streaking. Let me know how this works for you. I have come up with the cause and a fix for the above problem. This also fixes the problem of lines running the direction of paper travel on color prints. Black and white prints are OK. If you have a warranty on your printer or drum unit then you can have the drum unit replaced and hope you get a good replacement drum unit. To fix your drum unit do the following: 1. Remove the drum unit from your 3100cn. 2. Set the drum unit on a clean level surface and avoid touching the drum or the transfer belt (the decal with 4 arrows points to the transfer belt). 3. Remove the 6 screws from the top cover (the cover has the blue handle attached). Two screws are on top at both ends of the blue handle. The next 2 screws are on the sides and line up with the decal with 4 arrows. The last 2 screws are also on the sides and at the lower corners of the big decal that shows how to remove the drum unit from the 3100cn. 4. Carefully lift the cover from the drum unit and cover the drum unit with clean paper to protect the transfer belt from bright light. You can carefully reinstall the drum unit without the top cover and run some color prints. If the lines are gone then continue with step 5. 5. Look at the ribbed side of the top cover. Some may show some toner build-up. Some of the rib intersections are too high and are dragging in the toner that is applied to the transfer belt. The ribs are there to add stiffness to the cover and to keep it from bowing. 6. Place the cover handle side down on a clean towel. 7. Using a palm sander with 320 grit sandpaper and light pressure (the weight of the palm sander) sand until the ribs going both directions are showing signs of being sanded. You will be able to see the difference as unsanded areas will be glossy and sanded areas will have a dull finish. 8. Switch to 600 grit paper and do a light sanding. 9. Wash the cover under cool water. Don't use hot water since that could cause the cover to bend. 10. Dry completely. I used compressed air. 11. Reinstall the cover to the drum unit. Tighten the 4 side screws first and then the 2 top screws last. 12. Put the drum unit back into the 3100cn and try a color print. 13. Please post if you have any questions about the procedure. 14. If your next drum unit has the same problem you can swap top covers.
Message Edited by Ron13863 on 09-04-2007 07:16 AM
Posted on Feb 27, 2011
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Posted on Jan 02, 2017
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