At what point in the laser printer printing process is toner transferred to the drum?
1. Developing-->Correct
2. Fusing
3. Conditioning
4. >>Transferring - Wrong
Explanation : Toner is transferred to the drum during the developing phase of the laser printer printing process.
Printing occurs in stages. The first stage, called charging or conditioning, is when a -600 v charge is applied evenly to the drum. During the writing or exposing stage, laser beams form an image by reducing the charge to approximately -100 v in the areas where the image will be formed. Next is the developing stage, when toner is transferred to the drum.
During the transferring stage, a +600 v charge is applied to the paper. Next is the fusing stage, when the image is transferred to the paper and pressure and heat (350 degrees Fahrenheit) melt and bond the toner to the paper. The final stage, cleaning and erasing, is when excess toner is removed from the drum and the drum is discharged. Understanding the print process and stages involved can be helpful when having to troubleshoot laser printer problems. By observing the symptoms, you can get an idea of which stage is having a problem and which components are involved.
Objective: Printers and Scanners
