May 2013
3-10
Xerox® WorkCentre® 5790 Family
IQ1, IQ2
Image Quality
Figure 16 Test pattern 19
IQ2 Defects RAP
Use this RAP to resolve image quality defects.
On a properly registered document, with border erase is either on or off, an image defect (dele-
tion/disturbance within 5 mm of the edge of the sheet is acceptable.
Ensure
IQ1
Image Quality Entry RAP is performed before starting this RAP.
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.
Check the error log for the following codes: 09-310, 09-390, 09-360, 09-361, 09-362, 09-363. If
any of the codes are displayed, go to the
09-310, 09-390
Low Toner Sensor Failure RAP or the
09-360, 09-361, 09-362, 09-363
Toner Concentration Sensor Failure RAP.
Procedure
Refer to the appropriate image quality failure and perform the appropriate action.
•
Background. Refer to the
IQS 6
Copy / Print Defects and
IQS 2
Background. Go to the
IQ3
Xerographic RAP.
•
Bands. Go to the
IQ3
Xerographic RAP.
White bands on a grey or dark dusting. Check for developer leakage, refer to
Developer
Assembly Checkout
.
•
Barber pole deletions. A series of finger print deletions that form a pattern like a barber
pole or auger marks. The deletions are repeated at proximately 7 cm and are approxi-
mately 30 degrees to the lead edge throughout a grey or dark dusting. Go to
IQ12
Barber
Pole Deletions/Developer Leakage RAP.
•
Beads on print. Clean the following:
–
Developer beads hanging from the developer roll and the lower lip,
Figure 1
.
–
The developer roll area, above and in the recesses below the roll,
Figure 1
.
–
The halo guide and the registration guide,
Figure 1
.
–
The drive roll assembly,
PL 8.15 Item 9
and under the registration roll cover,
PL 8.15
Item 5
. Refer to
Figure 1
.
–
The duplex paper path (35-55 ppm)
PL 8.22
or (65-90 ppm)
PL 8.20
.
–
The base pan of the machine.
Go to
IQ3
Xerographic RAP and complete the
Xerographic Module and Short Paper Path
Checkout
and the
Developer Assembly Checkout
.
Improperly seated transfer/detack end block covers, or a misadjusted halo guide can
score the surface of the drum, leading to developer loss and premature xerographic mod-
ule replacement. Perform
ADJ 9.4
Xerographic cleaning.
•
Black band. Copies have a black band 1 inch wide from top of the copy. At start print the
scan carriage assembly moves to the right, starts to scan and then pulsates for an inch.
Check the connections on the scanner PWB. Install a new scanner PWB, (W/O
TAG 150
)
PL 14.20 Item 1
or (W/
TAG 150
)
PL 14.10 Item 1
.
•
Black image. Check the following conditions:
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 ...