Canon iR C6800 Series Service Manual page 1084

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15.2.1.7 DPOT

15.2.1.7.1 Overview

Use it to indicate data collected of the photosensitive drum/transfer belt potential control mechanism.

15.2.1.7.2 <DPOT K>

Use it to indicate the surface potential of the photosensitive drum. unit: V

15.2.1.7.3 <VDM>

Use it to indicate the dark area potential (VD) for copying. unit: V

15.2.1.7.4 <1TR DC4K>

Use it to indicate the primary transfer DC (Bk by 4C). unit: V

400 to 3000 [V]

15.2.1.8 DENS

15.2.1.8.1 Overview

Use it to check the concentration of developer inside the developing assembly.

15.2.1.8.2 <DENS Y>

Use it to check the computed value of the density (Y) of the

patch formed on the photosensitive drum. (indicates the

discrepancy from the target value in %)

The value is updated when the machine executes toner supply

operation after the main power switch is turned on.

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