Samsung CLP-510/XBH Service Manual page 127

Troubleshooting
8.1.3 Check the length of life of components
The length of life of consumable components is displayed either by operating time (% of life) or quantity of output. The
printer will not work if any of these parts have exceeded there expected life. When a user replaces any of these consumable
parts they must reset the appropriate counter using the maintenance menus (see section 7.4, page 7-13).
The printer calculates the working time and quantity of output for each component and saves this information.
1. The Working time for each component (OPC Drum, Toner Cartridge, Image Transfer Belt, Fuser Unit) is measured
every 30 seconds when the Transport Motor and Fusing Contact Motor are active.
2. In order to calculate the number of images printed 1 is added to the appropriate counter every 30 seconds. The
amount of waste toner is calculated based on the number of pixels in the image.
3. When the user replaces any of the consumable parts and resets the appropriate counter it starts again from 0.
Service Manual
8-4
Samsung Electronics