Olivetti d-Color MF2552 plus, Service Manual, Page: 219 / 740

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U410 Adjusting the halftone automatically
Description
Carries out processing for the data acquisition that is required in order to perform either auto-
matic adjustment of the halftone or the ID correction operation.
Purpose
Performed when the quality of reproduced halftones has dropped.
Method
1. Press the start key.
2. Select the item.
Method: [Normal Mode]
1. Select [Normal Mode].
2. Press the start key. A test patterns 1, 2 and 3 are outputted.
3. Place the output test pattern 1 as the original.
Place approximately 20 sheets of white paper on the test pattern 1 and set them.
4. Press the start key.
Adjustment is made (first time).
5. Place the output test pattern 2 as the original.
Place approximately 20 sheets of white paper on the test pattern 2 and set them.
6. Press the start key.
Adjustment is made (second time).
7. Place the output test pattern 3 as the original.
Place approximately 20 sheets of white paper on the test pattern 3 and set them.
8. Press the start key.
Adjustment is made (third time).
9. When normally completed, [Finish] is displayed.
If a problem occurs during auto adjustment, error code is displayed.
Error codes
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
Item No. Description
Display Description
Normal Mode Executing the automatic adjustment of the halftone
(continuous adjustment)
Codes Description Codes Description
S001 Patch not detected E001 Engine status error
S002 Original deviation in the main
scanning direction E002 Engine sensor error
EFFF Engine other error
S003 Original deviation in the auxil-
iary scanning direction C001 Controller error
C100 Adjustment value error
S004 Original inclination error C200 Adjustment value error
S005 Original type error CFFF Controller other error
SFFF Scanner other error
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