A+ Exam: Electrophotographic (Ep) Laser Print Process

1. What is the sixth step in the EP print process?

In the final step, the print image is made permanent. The registration rollers push the paper toward the fuser rollers. The 350 degree fuser takes control and melts the polyester resin of the toner, and the rubberized pressure roller presses it permanently into the paper. The paper continues until it exits the paper. The printer then trips a sensor to start the cleaning step all over again.

Explanation

In the final step, the print image is made permanent. The registration rollers push the paper toward the fuser rollers. The 350 degree fuser takes control and melts the polyester resin of the toner, and the rubberized pressure roller presses it permanently into the paper. The paper continues until it exits the paper. The printer then trips a sensor to start the cleaning step all over again.

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2. In electrophotography, the ______ is a fine powder that is used to create the visible image on the paper.

Toner is a crucial component in electrophotography, the technology used in laser printers and photocopiers. It consists of finely ground particles that are electrostatically attracted to the charged areas of the photoreceptor drum, forming the image that is then transferred to the paper.

Explanation

Toner is a crucial component in electrophotography, the technology used in laser printers and photocopiers. It consists of finely ground particles that are electrostatically attracted to the charged areas of the photoreceptor drum, forming the image that is then transferred to the paper.

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3. What is the fourth step in the EP print process?

Now that the surface of the drum holds an electrical image of the print job, a magnetic DEVELOPING roller inside the EP cartridge is charged to -600VDC. The developing roller rotates toward the photo sensitive drum. Toner sticks to this DEVELOPING roller and charges the toner to -600VDC. The toner is attracted to the -100VDC areas on the drum and repelled by the -600VDC areas. The drum now has toner stuck to it where the laser has written.

Explanation

Now that the surface of the drum holds an electrical image of the print job, a magnetic DEVELOPING roller inside the EP cartridge is charged to -600VDC. The developing roller rotates toward the photo sensitive drum. Toner sticks to this DEVELOPING roller and charges the toner to -600VDC. The toner is attracted to the -100VDC areas on the drum and repelled by the -600VDC areas. The drum now has toner stuck to it where the laser has written.

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4. What is the fifth step in the EP print process?

Fusing

Transferring

Cleaning

Writing

Charging

Now the developed image is rotating into position. The registration rollers move the paper underneath the drum, and the process of TRANSFERRING the image begins. The corona wire/roller acquires a strong positive charge (+600VDC) and applies the charge to the paper. The charge pulls the toner from the drum. The static eliminator strip then removes all charge from the paper.

Explanation

Now the developed image is rotating into position. The registration rollers move the paper underneath the drum, and the process of TRANSFERRING the image begins. The corona wire/roller acquires a strong positive charge (+600VDC) and applies the charge to the paper. The charge pulls the toner from the drum. The static eliminator strip then removes all charge from the paper.

5. What is the third step in the EP print process?

Developing

Cleaning

Fusing

Transferring

Writing

In this step the laser is turned on and scans the drum from side to side, flashing on and off according to the information received from the printer controller. Wherever the laser WRITES on the drum it reduces the charge to around -100VDC, creating the image to be printed.

Explanation

In this step the laser is turned on and scans the drum from side to side, flashing on and off according to the information received from the printer controller. Wherever the laser WRITES on the drum it reduces the charge to around -100VDC, creating the image to be printed.

6. What is the first step in the EP Print Process?

Charging

Developing

Fusing

Cleaning

Writing

In the first part of the laser print process, a rubber blade inside the EP cartridge scrapes (CLEANS!)any toner left on the drum into a used toner receptacle, and a fluorescent lamp discharges any remaining charge on the photsensitive drum.

Explanation

In the first part of the laser print process, a rubber blade inside the EP cartridge scrapes (CLEANS!)any toner left on the drum into a used toner receptacle, and a fluorescent lamp discharges any remaining charge on the photsensitive drum.