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4
Troubleshooting
4-2. Troubleshooting for Image Quality
◆ Basic troubleshooting
If you are concerned about image quality, first perform [Package Color Auto Adj].
◆ Image diagnosis
If white spots or streaks appear on the image, it is recommended that [Image Diagnosis] is
performed.
Example)
How to perform image diagnosis
It is recommended that [Simple Diagnosis] is performed first, and if there is a problem,
[Detailed Diagnosis] is performed next.
[MACHINE] screen - [Adjustment] - [Quality Adjustment] - [Image Diagnosis]
[Simple Diagnosis]
Execute [Simple Diagnosis]
No problem
Display the result of
the simple diagnosis
Caution
• The following paper size is required to perform the image diagnosis (simple and
detailed).
Widthwise: 279.4 mm or more
Lengthwise: 420.0 to 487.7 mm
Automatically performing the image diagnosis
If both [Auto Selection] and [Auto Run] are turned on in [Package Color Auto Adj.], the simple
diagnosis is automatically performed before the automatic adjustment starts after the power
is turned on.
This is an effective way to detect problems at an early stage.
White spot
Color loss
There is a
problem
Detailed Diagnosis
settings associated with
Simple Diagnosis
OFF
If you want to create a
detailed diagnosis
Execute [Details Diagnosis]
Recover the recoverable items
display the result of the detailed
ON
07_070 Troubleshooting
Vertical streaks
Horizontal streaks
[Detailed Diagnosis]
diagnosis
and
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