The MP tray media presence sensor detects the presence of print media on the MP tray.

Figure 1-38Tray 1 (MP tray) paper pickup

DC controller

Pickup motor M5

MP tray pickup solenoid

SL2

MP tray pickup roller

PS2:

MP tray media presence sensor

Lifting plate

MP tray separation pad

Tray 1 (MP tray) last-paper detection

The product detects whether the print media on the MP tray is the last sheet during continuous printing to prevent toner contamination on the photosensitive drums and the ITB.

The product attempts to form the next image before the DC controller detects a media absence because the paper path between the MP tray media-presence sensor and the registration roller is short. To prevent the photosensitive drums and the ITB from being contaminated with toner, the last-paper sensor detects the last-paper. The MP tray last-paper detection roller rotates when the last-paper is picked up.

54 Chapter 1 Theory of operation

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HP Enterprise CP5525 manual Tray 1 MP tray last-paper detection, SL2