Sharp MX-M264N User Manual
Page 778

8-32
PROBLEMS RELATED TO ONE-TOUCH INDIVIDUAL 
KEYS / GROUP KEYS
The image is too light 
or too dark.
(When using PC 
Scan.)
Is the threshold value suitable?
Check the "B/W Threshold" setting. 
When scanning from the TWAIN driver with [Mono 2 
gradation] selected from the [Colour Mode] of the 
"Custom Settings" window, check the "B/W Threshold" 
setting. A large threshold value makes the image darker 
and a small threshold value makes the image brighter. 
To adjust the "B/W Threshold" automatically, click the 
[Auto Threshold] button on the [Image] tab of the 
"Custom Settings" window.
Are the brightness and contrast settings 
suitable?
When the brightness and contrast settings are not 
suitable (for example, the scanned image is too bright), 
click the [Auto Brightness / Contrast Adjustment] button 
on the [Colour] tab of the "Custom Settings" window. 
You can also click the [Brightness / Contrast] button to 
set the brightness and contrast while viewing the 
scanned image.
Problem
Point to check
Solution
A one-touch individual 
key or group key 
cannot be stored.
Has the maximum number of keys been 
stored?
Adjust the number of stored keys.
Delete one-touch keys (or group keys) that are not 
being used.
Have functions been disabled by the 
administrator?
Check with your administrator.
Some functions may have been disabled in the system 
settings (administrator).
A one-touch individual 
key or group key 
cannot be edited or 
deleted.
If the key is an individual key, is the key 
included in a group?
Remove the key from the group and then edit or 
delete the key.
(If the key is included in multiple groups, it must be 
removed from all groups.)
 System Settings > "Address Control" > "Address Book"
If multiple group keys have been stored, print the Group 
List in "Sending Address List" in the system settings. 
The list will show where the key is stored.
 System Settings > "List Print (User)" > "Sending
Address List" > "Group List"
Is the key being used in a reserved 
transmission or a transmission in 
progress?
Wait until the transmission is finished or cancel the 
transmission and then edit or delete the key.
Problem
Point to check
Solution
