Chapter 2
2-66
5) Adjust the DADF angle by right-side hinge adjustment screw [1].
Loosen the fixing nut [2] before adjustment. Tighten it after adjustment.
F-2-193
F-2-194
* For A>B -> Rotate clockwise.
* For A<B -> Rotate counterclockwise.
6) Tighten all of the hinge fixing screw loosened in the step 3).
5. Reading Position Adjustment
1) Enter the service mode.
2) Select the screen from the service mode screen in the following order, to display the adjustment screen.
1. COPIER
2. FUNCTION
3. INSTALL
3) 3) Press STRD-POS to highlight.
4) 4) Press OK key.
The scanner starts scanning by pressing OK. Auto adjustment of scanning position is completed in a few seconds, OK is displayed.
If auto adjustment is failed and NG is displayed, perform the following steps.
1) Clean the white roller of DADF and the copyboard glass of the main unit, and perform auto adjustment again.
2) If it fails again, perform manual adjustment in the following step by the service mode.
COPYER > ADJUST > ADJ-XY > STRD-POS
The default is 30.
Modify the value and check the actual copy image, and determine the optimum value.
6. Reproduction Ratio Adjustment
MEMO:
DADF reproduction ratio adjustment is performed by comparing the stream reading copy image and pressing plate reading copy image (because the DADF is for
color machine). Comparison between stream reading copy image and original is performed at DADF for the previous monochrome machine, so perform adjustment
taking this difference into account. When reproduction ratio adjustment by comparing stream reading copy image and original is performed as in the case of mon-
ochrome DADF, the following problems may occur.
- ACS erroneous decision
- Black text enhancement erroneous decision
1) Set test chart to DADF, copy one set. This is to be copy B.
2) Set the test chart used in the step 1) to the copyboard glass of the main unit, copy one sheet. This is to be copy A.
3) Compare the image length in the feeding direction between copy A and copy B. Perform adjustment at the service mode if necessary.
Copy B image is short -> Decrease the value (Make the document stream reading speed lower)
Copy B image is long -> Increase the value (Make the document stream reading speed higher)
Adjustment unit 1=0.1%
4) Select the screen from the service mode screen in the following order.
Summary of Contents for iR C3380 series
Page 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series...
Page 2: ......
Page 6: ......
Page 23: ...Chapter 1 Introduction...
Page 24: ......
Page 26: ......
Page 52: ......
Page 53: ...Chapter 2 Installation...
Page 54: ......
Page 127: ...Chapter 3 Basic Operation...
Page 128: ......
Page 130: ......
Page 136: ......
Page 137: ...Chapter 4 Main Controller...
Page 138: ......
Page 160: ......
Page 161: ...Chapter 5 Original Exposure System...
Page 162: ......
Page 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69...
Page 189: ...Chapter 6 Laser Exposure...
Page 190: ......
Page 192: ......
Page 206: ......
Page 207: ...Chapter 7 Image Formation...
Page 208: ......
Page 256: ......
Page 257: ...Chapter 8 Pickup Feeding System...
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Page 262: ......
Page 303: ...Chapter 9 Fixing System...
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Page 306: ......
Page 321: ...Chapter 10 Externals and Controls...
Page 322: ......
Page 326: ......
Page 336: ...Chapter 10 10 10 F 10 10 2 Remove the check mark from SNMP Status Enabled...
Page 337: ...Chapter 10 10 11 F 10 11...
Page 359: ...Chapter 11 MEAP...
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Page 401: ...Chapter 12 RDS...
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Page 411: ...Chapter 13 Maintenance and Inspection...
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Page 416: ...Chapter 13 13 2 F 13 1 8 9 1 2 3 3 5 6 7 10 11 12 13 14 4...
Page 421: ...Chapter 14 Standards and Adjustments...
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Page 431: ...Chapter 15 Correcting Faulty Images...
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Page 459: ...Chapter 16 Self Diagnosis...
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Page 481: ...Chapter 17 Service Mode...
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Page 484: ......
Page 571: ...Chapter 18 Upgrading...
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Page 603: ...Chapter 19 Service Tools...
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Page 609: ...Aug 29 2006...
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