Sharp AR-280 Service Manual page 70

(In the case of NORMAL)
The screen of Fig. 2 is displayed for 1 sec, then the screen of Fig.
3 is displayed to terminate the adjustment of the original sensor.
* In this case, the display item of "2. A3 ORIGINAL" is shown
instead of "1. NO ORIGINAL" at the left top.
(In the case of ABNORMAL)
The screen of Fig. 4 is displayed for 1 sec, and the sensor of
abnormality is highlighted. In this case, check that there is no A3
original on the original glass, and press the [EXECUTE] key to
perform the sensor adjustment operation again.
* In this case, the display item of "2. A3 ORIGINAL" is shown
instead of "1. NO ORIGINAL" at the left top.
(2) Original size sensor position adjustment
1) Execute SIM 41-1.
(AB series)
(Inch series)
·
Slowly tilt the original detecting arm unit, and loosen the original
cover switch actuator adjustment screw, and slide and adjust
the actuator so that the highlighted display of OCSW is
changed to the normal display when the height of the arm unit
top from the table glass is 32 ± 0.5 mm.
(When the original cover switch ON timing is shifted, the origi-
nal detection function may not work properly.)
32 ± 0.5 mm
Table glass
Actuator adjustment screw
7/13/2000
Original detecting arm unit
Original cover switch actuator
(3) Waste toner full detection level adjustment
1) Fill water to the empty waste toner bottles to make dummy bottle
A and B.
Dummy bottle A: 480g (including the bottle weight)
Dummy bottle B: 560g (including the bottle weight)
2) Turn on the power switch of the copier.
3) Install dummy bottle A (480g) to the waste toner bottle detecting
unit and check that the weight detection is OFF.
4) Install dummy bottle B (500g) instead and check that the weight
detection is ON.
"Weight detection ON" means that the display of "REPLACE
TONER BOTTLE" on the panel display is ON. "Weight detection
OFF" means that it is OFF.
Initial value:
[When ON/OFF display is improper]
Loosen the fixing screw of the positioning plate. Move the positioning
plate up and down to adjust so that the weight detection is made as
specified.
6 – 20
The weight detection level
for ON becomes greater.
Adjustment
plate
The weight detection level
for OFF becomes smaller.
2 scales down from the center