2LK/2LN/2LM/2LC-2
1-3-68
U091 How to view test copies
Setting: Threshold value setting
1. Select the item to be set.
2. Change the value using the +/- or numeric keys.
* : Normally the Threshold (Com) value should not be changed from 112, the initial setting.
If white lines appear even though the CIS roller and glass are not dirty, raise the set value.
If fine lines in some originals disappear, lower the set value.
Set within the range 50 to 200. (If set outside this range, the image may be affected.)
3. Press the start key. The value is set.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
U099 Adjusting original size detection
Description
Checks the operation of the original size detection and sets the sensing threshold value.
Purpose
Modify the threshold of detection if documents are frequently mal-detected in size after scanning
a wholly dark document or a document enclosed with dark objects on edges.
Method
1. Press the start key.
2. Select the item.
Item No. Description
blank sheet black band Causes Corrective measures
No lines No lines - Complete
Black lines White lines Dirty CIS roller or CIS
glass
Clean CIS roller or CIS glass
and then perform U091 again
Black lines No lines Engine side U091 ends, check engine
No lines White lines Engine side U091 ends, check engine
Display Description
Setting
range
Initial
setting
Threshold(B) Displaying of abnormal pixel detection
threshold value for color B
0 to 1023 112
Threshold
(Abnormal)
Abnormal pixel threshold value setting 0 to 8191 75
Mode Switching between white line correction
mode ON/OFF
0: OFF/
1: ON/
2: Test mode
0
Display Description
Data1 Displaying original size detection transmission data
B/W Level1 Setting original size detection threshold value
Data2 Displaying original size detection transmission data (when DP is installed)
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