Canon NP6085 Service Manual page 362

6. Adjusting the Paper Height on the Front Tray
If pick-up failure or double feeding jams occur
frequently, check the position of the lifter (sensor);
as necessary, make the following adjustments:
Adjusting the Paper Height
1) Remove the duplexing unit, plate paper on the
front tray; then, move up the lifter.
2) Place a ruler on the paper, and check to make
sure that the position when the ruler is in con-
tact with the separation plate on the pick-up
side is about 1/2. (Figure 4-350)
Caution:
• When checking the height of the upper
front tray, slide out the duplexing unit, and
keep the feeding assembly is place with a
long screwdriver.
• When checking the height of the lower
front tray, remove the upper front tray in
advance.
Paper
Ruler
surface
Paper
Lifter
Figure 4-350a (front tray separation plate
assembly)
COPYRIGHT © 1996 CANON INC.
2/3
A
1/3
Bend
Separation plate
CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
Figure 4-350b (front tray separation plate
assembly)
3) If the position of the paper surface is not as
indicated, loosen the two adjusting screws of
the paper sensor plate, and move the sensor
support plate up and down to adjust the posi-
tion. (Figure 4-351)
• If the paper surface is low, lower the paper
sensor support plate.
• If the paper surface is high, raise the paper
sensor support plate.
Feeding roller
Separation roller
Figure 4-351
4. MECHANICAL SYSTEM
Separation plate
Paper sensor support plate
Adjusting screw
Pick-up roller
4-41