Samsung CLP510 I have a CLP510 color laser printer. I am getting images of the previous page on my printouts. I have replaced the transfer belt and the imaging unit and am still getting images. What would my next step be to solve this problem?

See page 103 of http://downloadcenter.samsung.com/content/UM/201112/20111205134621713/EN/English.pdf. It looks like the clx6220 uses a transfer belt to transfer all the different toner powders to the paper.
see
http://www.genuinetonercartridges.com.au/genuine-samsung-clp-620nd-clp-670nd-clx-6220fx-clx-6250fx-page-image-unit-transfer-belt.html
The transfer belt unit is refered to also as the image unit !
Also each toner cartridge contains the OPC drum and is replaced when you replace a toner cartridge by the look of it.
You need a transfer belt to transfer the image to the paper and this is why they call it an image unit.
I am guessing that the transfer belt needs replacement !

In my experience, the fuser has always been the cause of the lines.

TRANSFER BELT UNIT COMPLAINT REPLACE TRANSFER BELT OR TRANSFER BELT WIPER BLADE

This is usually caused by the left over toner not being properly cleaned from the transfer belt.
Open the printer front cover and close it. Wait for the printer to cycle. It usually make a little noise then stops. Then open the cover and close it again. Then print.
If the first page of the print out is clean. but the next page you print has a shadow of the first page, then you have a a problem with the cleaning mechanism.

Unfortunately the cleaner is part of the image transfer belt assembly which runs about $150 to $200. Unfortunately not terribly cost effective as compared to the original cost of many of these printers.

Good Luck.

replced the transfer belt but still getting the replace transfer belt message?

check drum and transfer belt.either one could be scratched.

Most Printers that are laser have a transfer roller or transfer belt. If you have replaced all the drums this can often be the problem.

to reset the counter on the toners and transfer belt see:
http://www.dunfield.com/clp510/

Change the fuser unit if you have to hand. The problem is likely caused by a lack of pressure from the pressure roller. Also check the transfer roller for a similar ghost image.

So we all understand; there is no ink your printer. In an inkjet printer, liquid pigment is sprayed from print heads directly on the paper where it dries and makes an image. Your printer has toner, which is a pigmented powder. I'm sure you found this when you cleaned the waste toner container.

The simple:
A laser printer draws an image on a rotating drum which then rolls into a tub of toner. Anywhere the laser hit, toner sticks, where it didn't hit, it doesn't stick. The drum rolls over a piece of paper (transfer belt with 1-pass color) and the toner rubs off onto the paper - it's still powder. The paper then goes through an oven (developing drum or fuser) which melts the toner onto the paper. BaM! Out comes your document.

A consistent line going from top to bottom of every page printed means one of the following:
1) A band of evil is thinly encircling the imaging drum causing it to pick up toner where it has not been hit by the laser. Check the imaging drum for lines that match the ones on your paper. Replace if necessary.
2) The transfer belt has a line of evil on it. Look at the belt in the right light in order to see scratches and such. Replace as necessary.
3) If your streak is an anti-streak, which is the LACK of toner. You need a new imaging drum. It's damaged. Unless it's a smudge, then its the fuser.

You can clean things inside very carefully with a cloth, but I always use compressed air. The CLP-300 is very compact and cheap and is not really made to be repaired. Replace the parts, or throw it away.

I understand that at this time July 18, 2008, you can purchase this unit for as low as $99 US after mail-in rebate. Check your local or online (newegg) retailer.

Questions? Ask. Good Luck.