Cq 28 Offsetting And Residual Image Isolation Rap - Xerox 2510 Service Manual

CQ 28 Offsetting and Residual
lmage Isolation
RAP
This RAP is used to isolate between an
offsetting and residual image copy quality
problem. It may be necessary to make
several copies to see if the problem can be
repeated.
Ask the customer for the document that
is
causing the problem.
Select a sheet of media, and draw a short
line 4 114 inches (108 mm) from the lead
edge and parallel to that edge.
Put the number 0 by one end of the line
drawn in step 2. Use this prepared sheet
a s the media for the next copy.
Select the normal contrast mode (middle
LED lit).
Insert the lead edge of the prepared
media with the marked side facing
down.
Start to make a copy, then press STOP
when the line marked on the copy media
i s even with the outside edge of the
transport latching cover.
NOTE: The mark will move about 112 inch
(1.27cm) beyond the front cover
before the main drive stops.
7. Open the transport latching cover and
remove the partially made copy. Ensure
that the copy is not dragged against the
photoreceptor or fuser roll.
8. Examine the new copy 10 318 inches
(264mm) (circumference of the drum)
away from the lead edge.
NOTE: Locate the exact end o f the fused
area of the image by wiping the
image with a finger.
9. If there is a reprint of the lead edge
information in the unfused area of the
image, then the problem
is
residual
image. This is caused by either a cleaning
problem,
a
dirty cleaning blade, or an
incorrect electrostatic value. Go to the
CQ- 15 Residual lmage RAP.
10.
Examine the images within the unfused
area. If the reprint
is
not in the unfused
area, then remove the oil dispense
assenibly arid check the fuser roll for
a
dry ink image.
If
there
is a
dry
ink
image
on the roll, then go to the CQ-13
Offsetting RAP.
NOTE: If you need to repeat this procedure,
remove dry ink from the fuser roll by
making a blank copy in between
attempts and discarding the copy.
10 318 INCHES
(264 mm)
LEAD EDGE
-J
4 114 INCHES
(1 08 mm)
THE PREPARED MEDIA
LEAD EDGE
IMAGE
\
EXAMINE
THIS
AREA
A CHECK F O R RESIDUAL IMAGES
FUSED
AREA
UNFUSED
AREA
7/92
251012515 3-109
CQ 28 Offsetting1 Residual Image Isolation RAP