Canon iR C6800 Series Service Manual page 1263

<G LUT OF>
Use it to change the gamma LUT auto correction function (secondary curve correction start point offset).
Use it to set a degree of offset in relation to the bottommost start point for secondary curve correction
used as part of the gamma LUT auto correction function.
Attention The new setting will not be valid until the power switch has been turned off and then on.
Settings 0: 140
1: 120
2: 100
3: 80
4: 60
at time of shipment/upon RAM initialization: 2
<G LUT SZ>
Attention
Settings
<TR BKBND>
Attention
Settings
Use it to set the gamma LUT auto correction function (smoothing intervals).
Use it to set the intervals of smoothing executed as part of the gamma LUT auto
correction function.
The new setting will not be valid until the power switch has been turned off and then on.
0: 30
1: 35
2: 40
3: 45
4: 50
at time of shipment/upon RAM initialization: 0
Use it to set the black band used to prevent bending/slipping of the transfer cleaning blade.
The machine is designed to deposit a black band to prevent bending/shipping of the transfer
charging cleaning blade before cleaning the photosensitive drum immediately after patch
detection or before application of the secondary transfer reverse bias.
The new setting will not be valid until the power switch has been turned off and then on.
0: off (default)
1: on only if H/H
2: on at all times
at time of shipment/upon RAM initialization: 0
T-15-385
T-15-386
T-15-387
Chapter 15
0005-6882
0005-6883
0005-6884
15-199