May 2013
3-23
Xerox® WorkCentre® 5790 Family
IQ9, IQ10
Image Quality
•
(W/
TAG X-001
) Check the machine ground connections, refer to the
01A
Ground
Distribution RAP. If the machine ground connections are good, request that the cus-
tomer has the power outlet socket checked.
Inform the remote user of the required changes to the settings.
IQ10 Image Quality Improvement RAP
Use this RAP if the customer is not satisfied with the image quality.
The image quality can be altered by changing the image quality defaults. This will optimize the
image quality to the unique requirements of the customer.
A combination of changes may give the best result. It is recommended to change the image
quality options and then perform
ADJ 9.5
Optimize the Dark and Light Grey Image. The alter-
native would be to change the image quality options.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14
. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
•
Perform
IQ3
Xerographics RAP before starting this procedure
•
Make a copy of the customer document that shows the defect and keep as a reference.
•
Ensure that the customer image quality requirements are understood.
•
Perform
ADJ 9.2
Image Quality Adjustment Routine. If the image quality routine does not
correct the image quality defect. Enter
dC131
and reset location 09-321 and 09-322 to the
default value and continue with the procedure.
Procedure
Make a copy of the customers document with different image quality setups until the image
quality has been improved. Use different combinations of the image quality options that are
available. Set the image quality setting, as the default.
Refer to the image adjustments options that follow.
•
Normal. Standard setting for most originals.
•
Text. Use for originals containing text or line art.
•
Halftone Photo. Use for high quality lithographic images or continues tone photo with
text and / or graphics.
•
Photo. Use for continuous tone photographs.
•
Lighter / Darken. One to seven levels can be selected by using the slider.
•
Background Suppression. Select Off or On (default).
•
Sharpness. One to seven levels can be selected by using the slider
•
Contrast. One to seven levels can be selected by using the slider
•
Screen. This option is preset On with Normal, Text and Halftone Photo Original Type
options. Set to Special or Auto (default)
–
Special Enhances continuous tone photographs or high quality frequency halftone
images. Use to create smoother, less grainy output, but risk of blotchy copy quality
defects.
–
Auto. Eliminates the risk of blotches or small areas that have different texture or pat-
tern appearance than surrounding area. This may produce a grainier picture than if
Special is used.
A
Summary of Contents for WorkCentre 5790 Series
Page 1: ...Xerox WorkCentre 5790 Family Service Manual 708P90298 May 2013 ...
Page 4: ...May 2013 ii Xerox WorkCentre 5790 Family Introduction ...
Page 20: ...May 2013 xviii Xerox WorkCentre 5790 Family Translation of Warnings Introduction ...
Page 22: ...May 2013 1 2 Xerox WorkCentre 5790 Family Service Call Procedures ...
Page 32: ...May 2013 1 12 Xerox WorkCentre 5790 Family SCP 7 Service Call Procedures ...
Page 53: ...May 2013 2 21 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 1 3 3V Return ...
Page 54: ...May 2013 2 22 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 2 3 3V Return ...
Page 56: ...May 2013 2 24 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 3 5V Return ...
Page 57: ...May 2013 2 25 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 4 5V Return ...
Page 59: ...May 2013 2 27 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 5 12V Return ...
Page 61: ...May 2013 2 29 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 6 24V Return ...
Page 62: ...May 2013 2 30 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 7 24V Return ...
Page 63: ...May 2013 2 31 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 8 24V Return ...
Page 95: ...May 2013 2 63 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs Figure 2 Circuit diagram ...
Page 96: ...May 2013 2 64 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs ...
Page 178: ...May 2013 2 146 Xerox WorkCentre 5790 Family 06 350 Status Indicator RAPs ...
Page 592: ...May 2013 2 560 Xerox WorkCentre 5790 Family 16B 16C Status Indicator RAPs ...
Page 596: ...May 2013 2 564 Xerox WorkCentre 5790 Family 19 409 Status Indicator RAPs ...
Page 698: ...May 2013 3 2 Xerox WorkCentre 5790 Family Image Quality ...
Page 736: ...May 2013 3 40 Xerox WorkCentre 5790 Family IQS 8 Image Quality ...
Page 742: ...May 2013 4 6 Xerox WorkCentre 5790 Family Repairs Adjustments ...
Page 772: ...May 2013 4 34 Xerox WorkCentre 5790 Family REP 3 4 Repairs Adjustments ...
Page 938: ...May 2013 4 200 Xerox WorkCentre 5790 Family REP 9 10 Repairs Adjustments ...
Page 994: ...May 2013 4 256 Xerox WorkCentre 5790 Family REP 11 17 110 Repairs Adjustments ...
Page 1014: ...May 2013 4 276 Xerox WorkCentre 5790 Family REP 11 15 120 Repairs Adjustments ...
Page 1166: ...May 2013 4 428 Xerox WorkCentre 5790 Family REP 14 20 Repairs Adjustments ...
Page 1168: ...May 2013 4 430 Xerox WorkCentre 5790 Family ADJ 3 1 ADJ 3 2 Repairs Adjustments ...
Page 1174: ...May 2013 4 436 Xerox WorkCentre 5790 Family ADJ 4 1 Repairs Adjustments ...
Page 1242: ...May 2013 4 504 Xerox WorkCentre 5790 Family ADJ 14 1 ADJ 14 2 Repairs Adjustments ...
Page 1386: ...May 2013 6 2 Xerox WorkCentre 5790 Family General Procedures Information ...
Page 1524: ...May 2013 6 140 Xerox WorkCentre 5790 Family Fax Tags General Procedures Information ...
Page 1526: ...May 2013 7 2 Xerox WorkCentre 5790 Family Wiring Data ...
Page 1554: ...May 2013 7 30 Xerox WorkCentre 5790 Family PJ Locations Wiring Data ...
Page 1604: ...May 2013 8 2 Xerox WorkCentre 5790 Family Accessories ...
Page 1606: ...May 2013 8 4 Xerox WorkCentre 5790 Family ACC 1 Accessories ...
Page 1610: ...XEROX EUROPE ...