AR-C150 (serv.man42). Troubleshooting Copy Quality - Sharp Copying Equipment Technical Bulletin (repair manual). Page 7

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GMA050702 
Sharp Electronics (UK) Ltd., Technical Services Group
 
 
 
 
If any of the above conditions are not met, adjust the density of each colour’s gamut 
by using the up and down arrows. This changes all 15 squares simultaneously. 
(each colour’ “gamut” is represented by 15 squares. - Letters “A” through “O”.) 
 
The next objective is to adjust the individual patch to get the composite black 
strip (CMY mixed) to match the process black strip (Bk) as closely as possible. 
 
1) 
With the first process black strip facing you, label the process black strip from 
left to right, MAX, O, N, M, L, K, J, I, H, G, F, E, D, C, B, and A. (16 squares) This 
will be your reference sheet. 
 
2) 
In order to manipulate the composite black strip so it resembles the process 
black strip as closely as possible, highlight the colour you wish to adjust (C, M, Y, or 
K). Choose the square you wish to adjust, (letter A through O) ,use the ten keys to 
increase or decrease the value, and press “OK”. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Select Colour 
to be adjusted 
Either Select 1 point to adjust 
1 point at a time or use the up 
and down arrows to adjust all 
15 points simultaneously
 
 
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