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,/'-.
,-.
,-
r
Adjusting
the Scanner
Drive Cable
Mount the upper frame stay on the upper
frame.
Hook
a spring
gauge
(CK-0054)
on the
pulley stop plate as shown in Figure '4-9,
pull it horizontally
with a force
of 3 kg,
and tighten screw A in Figure 4-7.
Figure 4-g
Adjusting
the
Mirror
Position
(optical
distance
between
mirrors
1 and 2)
Adjust
the
position
of the mirrors
when
the scanner drive cable has been replaced.
The adjustment
is made by changing
the
position of the cable stop plate for the mirror
1 mount (loosen the hex stop screw).
Note:
The cable tends to stretch
as copies
are
made;
adjust the optical distance
in such
cases.
If the optical distance
between
mirrors
1
and 2 is not correct, the cross-way
repro-
duction ratio will be wrong and sharpness
will fail.
Draw a line 1 cm from both sides on copy
paper (A4 or A3; Figure 4-10).
-I
-
lcm
-I
I-
I__
/
Draw
lines here.
Figure 4-l 0
lcm
Use the copy paper with lines as a docu-
ment, and make a copy. (A)
Place
a
blank
sheet
of 'paper
on
the
copyboard,
and feed the copy paper with
lines; in the manual feed mode. (B)
The copy paper fed will show contraction
by heat.
Align the left lines of the paper copied (A)
and paper fed (B), and adjust the position
of the mirror
1 mount
so that lengths
x
and y in Figure 4-l 1 are identical.
Figure 4-11
If x = y, correct.
If x > y, move the mirror 1 mount into direc-
tion a.
If x < y, move the mirror 1 mount into direc-
tion b.
Note:
The copy
image will be enlarged
if the dis-
tance
between
mirrors 1 and 2 is short, and
reduced if long.
WPVlUGHT
OILIS
CANON INC.
CdNON HP-1010
AN.0
OEC. IW
PAINTEO
IN JAPAN llMPAlME
AU JAPONI
Scanner drive cable
Figure 4-l 2
4-5
I
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