Kyocera Mita KM-1530 Service Manual page 117

2AV/X
Maintenance
item No.
U087 Turning the DF scanning position adjust mode on/off
Description
Turns on or off the DF scanning position adjust mode, in which the DF original scanning position is adjusted
automatically by determining the presence or absence of dust on the slit glass. Also changes the reference
data for identifying dust.
Reference
In the DF original scanning position adjust mode, the presence or absence of dust is determined by comparing
the scan data of the original trailing edge and that taken after the original is conveyed past the DF original
scanning position. If dust is identified, the DF original scanning position is adjusted for the following originals.
Purpose
Used to prevent appearance of black lines due to dust adhering in the original scanning position on the slit
glass when the DF is used.
Method
1. Press the start key.
2. Select the item to be set by lighting a copy exposure indicator using the copy exposure adjustment keys.
Copy exposure indicator
1-4
Exp. 1
Exp. 2
Setting the mode on/off
1. Select "on" or "oFF" using the zoom +/– keys.
Display
on
oFF
Initial setting: on
2. Press the start key. The setting is set.
Setting the reference data for identifying dust
Available only when the mode is turned on.
1. Change the setting using the zoom +/– keys.
Description
Minimum density to be regarded as dust
Example
The figure indicates the density in 256 levels of gray (0: white, 255: black). When the setting is 35, data of
the level of 35 or higher is regarded as dust and data of lower level is regarded as the background (scan
data taken when there is no original).
2. Press the start key. The value is set.
Completion
Press the stop/clear key. The indication for selecting a maintenance item No. appears.
1-4-68
Description
Description
Setting the mode on/off
Setting the reference data for identifying dust
Description
DF scanning position adjust mode on
DF scanning position adjust mode off
Setting range
10 to 95
Initial setting
35