Read Sharp MX-7090N / MX-8090N Service Manual online
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Symptom!
・Repeat light and dark density every 157mm.
・Rotate OPC drum of the corresponding color.
①Remove WKHDV Un.
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③7XUQWKH23&GUXPGHJUHHV
②3XOOWKH3URFHVV8QLWRXW
③7XUQWKH23&GUXPGHJUHHV
(clockwise direction).
④5HLnsWDOOWKH Process UnLWDQGWKH DV UnLW,
and
Srint outWKHSDWWHUQDJDLQ
⑤If it is not improved, repeat ①∼④.
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Color Registration
・Color shift tend to occur RQ the wholearea
of the paper
・Setting Change (Registration value)
Select Appropriate direction and color.
Main scan direction:
Change the value for the front side and the rear
side by "2" regarding the machine R-side as "+".
side by "2" regarding the machine R-side as "+".
Sub scan direction:
Change by "2" regarding the rear end side of
the paper transport direction as "+".
the paper transport direction as "+".
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Sub Scan Direction
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<Operation>
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Color Registration on Heavy paper
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Sub Scan Direction
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WĂƉĞƌ&ĞĞĚŝƌĞĐ ŽŶ
ŝƐƉůĂĐĞĚ ŝŶ ƚŚĞ ǁŚŽůĞ ƐƵƌĨĂĐĞ ƉĂƉĞƌ
ŝƐƉůĂĐĞĚĂƚƚŚĞůĂƚƚĞƌŚĂůĨƉĂƌƚŽĨƚŚĞƉĂƉĞƌ
<Symptom>
・Color shift occurs in the paper transport
direction at the paper rear end.
・Setting Change (Motor Speed)
Select appropriate mode
Change “FSM” by ± 3 (By 1 counts)
*Change paper feed speed (fusing Speed).
<Operation>
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