Sharp MX-2615N Operating Guide - Page 818

TROUBLESHOOTING Problem The image is too light or too dark. (When using PC Scan.) Point to check Is the threshold value suitable? Are the brightness and contrast settings suitable? Solution Check the "B/W Threshold" setting. When scanning from the TWAIN driver with [Mono 2 gradation] selected from the [Color 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. 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 [Color] 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. PROBLEMS RELATED TO ONE-TOUCH INDIVIDUAL KEYS / GROUP KEYS Problem A one-touch individual key or group key cannot be stored. Point to check Has the maximum number of keys been stored? Solution 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. 8-32 Contents