HP Enterprise CP5525 manual Media detection sensor types

Media detection

The product automatically selects an optimal print mode for a print-media by monitoring the media sensors on the paper path.

Media detection sensor types

●Reflected light type (detects the glossiness of paper)

●Transmitted light type (detects the thickness of paper)

The DC controller detects the type of print-media by the reflected light and the transmitted light, and switches the print modes accordingly. The DC controller identifies the following paper type:

●Plain paper

●Light paper

●Heavy paper

●Glossy paper

●Glossy film

●Overhead transparency (OHT)

The DC controller determines a media mismatch error and notifies the formatter under the following conditions:

●Simplex printing

◦The specified print mode is OHT, but the media sensor detects media other than an overhead transparency.

◦The specified print mode is something other than OHT, but the media sensor detects an overhead transparency.

●Duplex printing

◦The specified print mode is for duplex-printable-print mode, but the media sensor detects an overhead transparency. For more information about duplex-printable mode, see Duplex block (duplex models only) on page 63.

The DC controller flashes the media sensor during the initial rotation period under the following conditions:

●Product power is turned on

●The door is closed

The DC controller determines a media sensor abnormality and notifies the formatter when the light intensity is out of a specified range.

58 Chapter 1 Theory of operation ENWW