Quality Control

1.Combo Test
During new products developing the top PT engineers in R&D department will use advanced equipment to assist component and material testing and selection.

2.Matching Test
Extensive matching tests are conducted in different extreme environments and the post-lifecycle test to make sure all the replaced components work harmoniously.



3. Raw Material Test
All the key parts including Powder,OPC,Wipe Blade,Doctor Blade,Magnetic Roller and PCR are tested by the advanced new equipment and dealt with

4. Toner Filling& Vacuuming
Automatically fill the sealed cartridge with toner in isolated space and then vacuumed to make sure no toner leakage.The cartirdges are clearned by specially designed vacuum equipment without any damage to the cartridges.

5. Assembly
All the components are assebled mutual inspection is applied by new special technologies and advanced.Every details  are paid 100% attention on to ensure the highest performance.

6. Post Test
Every cartridge is tested by printing on the production line.Its he second ful printing test.

7. Sampling Test
Every production batch is sampling tested by a 1-3% rate depending on different models.The samples will undergo various German standard testing method in certain temperature and humidity for 100% life priting test.

8. Independent labs test
Besides the extremely strict in-house testing system,Yelbestech's products are verified by other independent testing labs regularly.


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