Download HP Color LaserJet CP5220 Series Printer Service Manual by Hewlett-Packard PDF

By Hewlett-Packard

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Extra info for HP Color LaserJet CP5220 Series Printer Service Manual

Sample text

This is the state for the black-only jobs. The operational sequence of the primary transfer roller engagement and disengagement control is as follows: 1. The fuser motor drives the primary transfer disengagement solenoid to rotate the primary transfer disengagement cam. 2. As the cam rotates, the YMC slide plate or the Bk slide plate moves to right or left. This causes the primary transfer roller to move up or down. 3. The ITB engages with or disengages from the photosensitive drum depending on the movement of the primary transfer rollers.

Figure 1-39 Skew-feed prevention Registration shutter Registration shutter Paper Pa pe ENWW r Pickup, feed, and delivery system 51 Feed-speed control The product adjusts the feed speed to obtain the best print quality depending on the type of print media. The product prints at the speed corresponding to the print mode specified by the formatter. Print mode Feed speed Print mode Feed speed Normal Full Photo media 1 Half Heavy media 1 Full Photo media 2 Half Heavy media 2 Half Photo media 3 Half Heavy media 3 Half Envelope Full Light media 1 Full OHT Half Glossy media 1 Half Label Half Glossy media 2 Half Rough Full Glossy media 3 Half Normal gloss Full Glossy film Half Fusing and delivery block The fusing-and-delivery block fuses the toner image onto the print media and delivers the printed page to the output bin.

When the negatively charged toner comes in contact with the photosensitive drum, it adheres to the latent image because the drum surface has a higher potential. Figure 1-17 Developing Developing blade Developing roller Developing bias Photosensitive drum 30 Chapter 1 Theory of operation ENWW Transfer block Primary transfer Step 5: The toner on the photosensitive drum is transferred to the intermediate transfer belt (ITB). The ITB is given a positive charge by the bias of the primary transfer roller.

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