Olivetti d-copia 1800 Service Manual page 70

2KL/2KK
Maintenance
item No.
Adjusting original size detection
U099
Description
Checks the operation of the original size detection sensor and sets the sensing threshold value.
Purpose
To adjust the sensitiveness of the sensor and size judgement time if the original size detection sensor mal-
functions frequently due to incident light or the like.
Method
1. Press the start key.
2. Select the item using the exposure adjustment keys
3. Press the start key. The machine enters the execution mode.
Display
dA
LE
Method to display the data for the sensor
1. Place an original on the contact glass and turn the original detection switch on. The exposure lamp turns
on and the width of the original is detected. The scanner data taken at the nine points from (1) at the
machine rear to (9) at the machine front is displayed. The data is displayed within the range of 000 to
255, 000 indicating white (original present) and 255 indicating black (no original).
2. Change the point to display the detection data using the exposure adjustment keys. For the correspon-
dence between the detection point and the exposure indicators, see Figure 1-3-16.
3. Press the stop/clear key. The selected item appears.
1-3-32
Description
Description
Displaying detection sensor transmission data
Setting detection sensor threshold value
Setting original size judgment time
1 2 3
4 5 6
7 8 9
Point Exposure indicator
1 exp. 1 (lit)
2 exp. 2 (lit)
3 exp. 3 (lit)
4 exp. 4 (lit)
5 exp. 5 (lit)
6 exp. 1 (flashing)
7 exp. 2 (flashing)
8 exp. 3 (flashing)
9 exp. 4 (flashing)
Figure 1-3-16
Service Manual Y110980-1