Xerox 3050 Service Manual page 516

ADJ 5.1
Copy Size Adjustment
Purpose
The purpose of this adjustment is to obtain
a
size-for-size copy of the Document on the
customer supplied media. The size of the
image is adjusted by changing the speed at
which the document
i s
scanned. Thi s
adjustment compensates for the media
stretchlng or shrinking as the media passes
through the copier.
I
Perform the ChecW Adjustment of the Fuser
Temperature (Through NVM)
(ADJ 10.1).
Check
0
The
test pattern 8ZE%WO must be fed
Lead Edge first in the 36 inch (914 mm)
direction. Keep the copy media within
the 36 inch (914 mm) marks
on the feed-
in shelf.
1. Ensure that the copler is programmed for
the correct media type. Review the
following P codes: P4 1, P42, and P43.
Refer t o the User Guide.
2. Make 3 copies of test pattern 8285980 on
the customer supplled 20 pound (80 GSM)
bond paper (roll and cut sheet).
To give
the copy
media time to stabillre,
wait 5 minutes before checking the
third copy with the test pattern. Discard
the f b t
2
copies from the two media
sources (roll end cut sheet media).
3. Place the third copy from the two media
sources on top of the test pattern.
4. (Figure 1): Compare the Vertical Mag.
Scale reference marks on the test pattern
with the marks on the copy.
A
TEST PAT TERN
ALIGN 0 REFERENCE MARKS
\
-
EEEI
EEEI
-
EEEI
EEEI
€€El
EEEl
NARROW BLACK AREA
COPY REGISTRATION
MARKS MUST BE WI1
/
NARROW BLACK ARE
Figure 1 . Compare the Reference Marks on the Test
Pattern with the Marks on the Copy
'HIN
tA OF
(Continued)
ADJ 5.1