WorkCentre Pro 423/428
3-4
CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING
3.2 Image Quality Specifications
E. Lead Edge Registration
Terminology description:
Represents deviation between lead edges of copy images and paper. The degree
of deviation is specified.
Judgment procedure:
l
499T247
Measure distance from the lead edge of paper to that of images.
l
499T281
Make a copy using the DADF and measure distance from the lead edge of paper to
the bottom line of an isosceles triangle.
F. Side Registration
Terminology description:
Represents deviation of images in the copy feed direction and transverse to the
copy feed direction. The degree of image deviation is specified.
Judgment procedure:
l
499T247
Measure distances between targets and side edges of the copy.
l
499T281
Make a copy using the DADF and measure distance from the side edge of paper to
the bottom line of an isosceles triangle.
G. Skew
Terminology description:
Indicates that copy images are copied at an angle against the paper. The degree of
inclination is specified.
Judgment procedure:
l
499T247
Measure distances from two targets to the side edge of paper and calculate the
difference.
l
499T281
Make a copy using the DADF and measure distance from the side edge of paper to
the bottom line of an isosceles triangle.
H. Line Copy Density
Terminology description:
Represents density of characters and lines. Degree of character and line density is
specified.
Judgment procedure:
Make a copy of Test Pattern (499T281) and check density and uniformity at three
paragraphs.
I.
Solid Reproducibility
Terminology description:
Represents image density of solid black area. Degree of solid image density is
specified.
Judgment procedure:
l
499T247
Observe density and uniformity at three solid areas.
l
499T281
Print the Test Pattern using the fax send/receive features and observe density and
uniformity at three solid/white alternate areas.
White area: Background
Terminology description:
Represents density of areas without images. Degree of whiteness is specified.
The work of high background is generally used to indicate dark white area or
background.
Judgment procedure:
Make a copy of Test Pattern (499T247) and observe the background which is the
darkest among white areas.
Содержание WorkCentre Pro 423
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Страница 3: ...WorkCentre Pro 423 428 6HUYLFH 0DQXDO...
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Страница 9: ...INTRODUCTION...
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Страница 24: ...WorkCentre 423 428 03 02 INTRODUCTION 14 7 Translation of Warnings...
Страница 25: ...CHAPTER 1 SERVICE CALL PROCEDURE...
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Страница 28: ...WorkCentre Pro 423 428 1 2 CHAPTER 1 SERVICE CALL PROCEDURE 03 02 1 1 Trimming...
Страница 31: ...CHAPTER 2 TROUBLESHOOTING...
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Страница 76: ...WorkCentre Pro 423 428 2 44 CHAPTER 2 TROUBLESHOOTING 03 02 2 3 Level 2 Troubleshooting...
Страница 242: ...WorkCentre Pro 423 428 2 210 CHAPTER 2 TROUBLESHOOTING 03 02 How to use the Diagnostic C E Mode...
Страница 243: ...CHAPTER 3 IMAGE QUALITY TROUBLESHOOTING...
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Страница 273: ...CHAPTER 4 DISASSEMBLY ASSEMBLY AND ADJUSTMENT...
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Страница 329: ...CHAPTER 5 PARTS LIST...
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Страница 415: ...03 02 5 2 Parts List WorkCentre Pro 423 428 5 85 CHAPTER 5 PARTS LIST...
Страница 416: ...CHAPTER 6 GENERAL...
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Страница 456: ...CHAPTER 7 ELECTRICAL WIRING DIAGRAMS...
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Страница 476: ...CHAPTER 8 ACCESSORIES...
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Страница 535: ...WorkCentre Pro 423 428 8 58 CHAPTER 8 ACCESSORIES 03 02 8 22 Stamp Kit Red...
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