Ace the COMPTIA A+ 2025 Exam – Get Ready to Geek Out and Dominate!

The beginning of the developing stage in the laser printing process is marked by the toner jumping from the develop roller to the drum. This is because during the developing stage, the toner particles are attracted to the areas on the drum that have been charged by the laser. The option A is incorrect because charging the drum is a part of the printing process, but it does not specifically mark the beginning of the developing stage. The option B is incorrect because the laser writing the image happens during the exposure stage, which happens before the developing stage. The option D is incorrect because toner transferring to paper happens during the last stage of the printing process, which is the fusing stage.