Samsung CLP 500 Error message 'Replace transfer roller'

I got this free Pdf manual from an online store for free and I don't think Ive visited a mechanic or fixya for help for more than 3-4 times out of the all the times I fixed the chipper in these 4 years

check on your pc smart panel that is install for any error detect for your printer.

follow the the error to get it check is much easier.

hold and press on the button of the printer for 5 sec to check on the supplier infor. that tells you the waer and tear item to be replace.
advice is to replace the toner block (OPC) image drum
if you do not have a smart panel install. you may go to www.samsung.com -> support and download the smart panel program.

http://www.samsung.com/sg/support/download/supportDown.do?group=pcperipheralsprinter&type=printermultifunction&subtype=colourlaserprinter&model_nm=CLP-300&language=&cate_type=all&dType=D&mType=DR&vType=&prd_ia_cd=06010200&acc_ia_fl=&disp_nm=CLP-300&model_cd=&menu=download

select the correct version with your OS.
1. OPC image drum - 25K +/- 2. transfer belt 25K +/- 3. transfer roller 20K +/- 4. pickup roller 20K +/- 5. Fuser 25K +/-

The fuser rollers (large orange rubber rollers visible with top cover open) are getting too hot, or the temperature sensor/wiring is faulty and misreading the temperature. Assuming sensor is okay, check the exhaust fan is running and expelling warm air as over time it will clog with dust and the fuser unit won't be cooled effectively.

Probably a bad connection between the transfer belt contacts and those inside the machine - clean any dirt/toner off them and make sure they aren't bent out of position and try again.

the transfer belt maybe defective or run its course..end of life
go into the menu, and see what the setup tells you

Use the keys on the control panel to select the following menus: setup|maintenance|check others|transfer belt|reset then press [enter]. The LCD should read "reset now" and the printer will return to the ready prompt.

This assumes the error message you have is for the transfer belt near end and not the transfer roller itself (which is NOT part of the transfer belt, it's actually attached to the RH door as you look at the control panel).

This error is caused by the Waste Toner Motor 'stalling' - usually as a result of the Waste Toner Full message being ignored for too long, and the waste system becomming overful.

Usually best to replace the Waste Toner Motor assembly.

They are for sale on auction websites from time to time.

Dear Friends:
I have a same problem after replacing both transfer belt and drum for Samsung CLP-510.
Can you help me?
An

Check on you drim uint the gears damaged.

If the messages are because the two units have reached their rated page count, you need to reset this via the printer menu system - see user handbook