Konica Minolta bizhub C250 Service Manual page 519

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18. Image quality problem
C. Initial Check Items 3
• If the printer is responsible for the image problem, let the machine produce a test print
and determine whether the image problem occurs in a specific single color or four colors
Mono Color
• Evaluation Procedure
Image
Problem
From [Service Mode], select [Test Mode] →
Lines,
[Halftone Pattern] → [SINGLE] → [HYPER]
bands
→ [Gradation] → [C→M→Y→K] → [Density
64], and produce a test print. Is image prob-
lem evident in each of all four colors?
476
Action
Field Service Ver. 3.0 Aug. 2006
Result
Cause
Printer,
YES
P.504
4 colors
Printer,
NO
P.490
single color
4 Colors
4038F4C509DA
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