January 2016
3-3
WorkCentre WorkCentre 4150/4250/4260WorkCentre 4150/4250/42604150/
IQ1
Image Quality
IQ1 Image Quality Entry RAP
Use this RAP to determine the source of an image quality problem.
Initial Actions
•
Check the condition of the paper. Do not use incorrectly cut paper, damp paper, paper
with rough edges, badly drilled paper, paper with wrapper wax or glue. Paper and media
should be stored flat, enclosed in wrappers, in a cool dry environment.
•
Check that the paper is within specifications. Refer to
GP 9
Paper and Media Specifica-
tions.
•
Check that paper tray guides are set to the correct paper size.
•
Check the document guides on the DADF.
•
Check the original documents for defects.
•
Ensure that the image adjustment mode selections are those used by the customer.
•
Check that the machine fans are working, go to the
OF3
Air Systems RAP.
Procedure
If necessary, refer to
IQ1 Internal Test Patterns
for:
•
A description of image quality defects.
•
The optimum test pattern to be used to diagnose the defect.
•
An example of all internal test patterns.
If possible, use the customer job to recreate the image quality problem.
Enter
dC606
. Select a suitable test pattern. Select the Features, 1 or 2 sided and paper size.
Press Start Test. Go to the relevant RAP:
•
IQ2
Blank Copies RAP
•
IQ3
Black Copies or Prints RAP
•
IQ4
Blurred Image From the Scanner RAP
•
IQ5
Vertical Black Lines or Bands RAP
•
IQ6
Vertical White Lines RAP
•
IQ7
Light Image RAP
•
IQ8
Dark Image RAP
•
IQ9
Background RAP
•
IQ10
Ghost Images RAP
•
IQ11
Stains on Back of Paper RAP
•
IQ12
Poor Fusing RAP
•
IQ13
Partial Blank Image (Not Periodic) RAP
•
IQ14
Partial Blank Image (Periodic) RAP
•
IQ15
Different Image Density (Left and Right) RAP
•
IQ16
Horizontal Bands RAP
•
IQ17
Periodic Printing Defects Check RAP
•
IQ18
DADF Lead Edge Offset RAP
•
IQ19
Poor Registration RAP.
•
IQ20
Image Displacement RAP
IQ1 Internal Test Patterns
Table 1
defines the image defect, gives a description of the defect and identifies the optimum
test pattern to be used.
To access patterns, go to Machine Status, Tools, Device Settings, Tests & Resets.
NOTE: There are 19 internal test patterns, but only 7 are unique. Each test pattern is available
more than one time. Only the first occurrence of a test pattern is shown in
Table 1
.
Table 2
describes the test patterns and the purpose for which they should be used to identify
image quality defects.
Table 1 Image quality defects
Image quality
defect
Description of defect
Optimum
internal test
pattern
Background
Uniform darkening across all the non print areas
1
Bands
Grey to dark in the light or non-image areas of the print in the
process direction or across the process direction. See also
narrow bands.
1
Beads on print Developer beads in the light or non-image areas of the print. 1, 7, 8
Black image
A print that is black or grey all over, but has no visible image
of the original document.
1, 7, 8
Blank image
No visible image.
1, 7, 8
Blurred image Part or whole of the image has the appearance of being out
of focus.
1, 7, 8
Dark prints
Very dark background with a visible image.
1, 7, 8
Deletions
Areas of the image missing from the print. Deletions may be
in the form of white spots, marks, lines, or whole areas of
toner missing from the print.
1, 6
Displaced and
fragmented
image
Distorted images, part images and missing images (scram-
bled images). Displaced images.
1
Light image
The image is visible on the print, but with insufficient solid
area density.
1
Lines
Black or white lines across the process direction or in the pro-
cess direction. See also the description, displaced and frag-
mented image.
1, 7
Magnification
At 100% magnification the printed image differs from the size
of the image on the original document.
7
Marks
Dark marks in the non-image areas of the print.
1, 7
Misregistration The image on the paper is Misregistration.
7
Narrow Bands Bands across the process direction visible in halftone areas.
1, 4, 5
Non uniformity Variation in image quality and density across the print. See
also uneven density.
4, 5
Offsetting
A previous image that was not removed from the fuser roll
during the cleaning cycle. The image is repeated at regular
intervals.
1, 5
Summary of Contents for 4150 - WorkCentre B/W Laser
Page 1: ...January 2016 Xerox WorkCentre 4150 4250 4260 4265 Family Service Manual Updated 1 25 16 DAW...
Page 3: ...0 0 00 2 No Product Name Assigned Preliminary Working Document Section Name...
Page 5: ...January 2016 ii WorkCentre WorkCentre 4150 4250 42604150 4250 4260WorkCentre 4150 Introduction...
Page 415: ...January 2016 WorkCentre 4150 4250 4260WorkCentre 4150 4250 4260 4265WorkCentre Parts List...
Page 563: ...January 2016 7 2 WorkCentre WorkCentre 4150 4250 4260WorkCentre 4150 4250 Wiring Data...
Page 627: ...January 2016 8 2 WorkCentre WorkCentre 4150 4250 4260WorkCentre 4150 4250 Accessories...
