Toshiba e-STUDIO 4500c, Service Manual

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TEST PATTERN PRINTING April, 2007
5-10
5.3.2 IPU TEST PATTERNS: SP4417
The IPU test patterns are primarily used for design purposes. However, they can
be used as follows:
•
To confirm that the IPU is processing images correctly.
•
To fine tune image processing
•
To trace the causes of poor images. For example, if the IPU test patterns are
normal when the machine is producing poor quality images, then the problem
must be after the IPU if the flow of image processing.
1. Enter the SP mode, select SP4417.
2. Scroll then select the number of the test pattern that you want to print.
3. Press [#].
4. Press "Copy Window" to open the copy window, then select the settings for the
test print (paper size, etc.)
5. Press the [Start] ( ) key to start the test print.
6. Press "SP Mode" (highlighted) to return to the SP mode display.
Here is a list of the text patterns you can select.
0 Scanned Image 13 Grid Pattern CMYK
1 Gradation Main Scan A 14 Color Patch CMYK
2 Gradation Main Scan B 15 Gray Pattern (1)
3 Gradation Main Scan C 16 Gray Pattern (2)
4 Gradation Main Scan D 17 Gray Pattern (3)
5 Gradation Sub Scan (1) 18 Shading Pattern
6 Grid Pattern 19 Thin Line Pattern
7 Slant Grid Pattern 20 S Grid Pattern
8 Gradation RGBCMYK 21 SGray Scale
9 UCR Pattern 22 S Color Patch
10 Color Patch 16 (1) 23 S Slant Grid C
11 Color Patch 16 (2) 24 S Grid D
12 Color Patch 64