User's Manual
Table Of Contents
- IMPORTANT NOTICES
 - RELEASE NOTES
 - INTRODUCTION
 - USING MOBILE COMPUTER
 - LEARNING SOFTWARE ARCHITECTURE
 - SYSTEM MENU
 - PROGRAM MANAGER & KERNEL
 - SPECIFICATIONS
 - DOWNLOAD UTILITY
 - TROUBLESHOOTING
- CANNOT TURN ON WHEN PRESSING POWER KEY
 - CHARGING ERROR
 - BUZZER SEEMS NOT WORKING
 - LED INDICATOR SEEMS NOT WORKING
 - LCD TOUCH SCREEN SEEMS NOT WORKING
 - KEYPAD SEEMS NOT WORKING
 - VIBRATOR SEEMS NOT WORKING
 - MOBILE COMPUTER SEEMS NOT WORKING
 - CANNOT SCAN BARCODES
 - CANNOT DECODE DATA AFTER SCANNING
 - CANNOT TRANSMIT/RECEIVE DATA
 
 - KEY REFERENCE TABLES
 
22 
8700 Series Mobile Computer Reference Manual
1.4 LCD 
The mobile computer ships with a  3” FSTN  graphic LCD, 160 by 16 0 pixels res olutions, 
which can be programmed to display text or graphics such as specific font and  company 
logo to meet various applications. 
Options 
Font Size (pixels)  Characters by lines 
English font  Font size 6×8 (pixels) 
Font size 8×16 (pixels) 
26 characters by 19 lines 
20 characters by    9 lines 
Chinese font  Font size 12×12 (pixels) 
Font size 16×16 (pixels) 
13 characters by 12 lines 
10 characters by    9 lines 
Other language fonts, company logo…  Programmable 
Note: The bot tom lin e ( ICON_ZONE) is  reserved t o display  st atus icon s, su ch as th e 
battery icon. 
1.4.1 ADJUSTING THE BACKLIGHT 
The backl ight of s creen and  keypad makes i t easier to  operate the mobile  computer in 
dim envi ronments. By  pressi ng t he fol lowing key com binations, L CD ba cklight ca n be 
turned o n/off a nd t he brightness can be adj usted. Kee p pressing  the key co mbination 
until the  br ightness or  contras t d ecreases or  increases to a desired  level. Alt ernatively 
the brightness and contrast are controllable through programming or via System Menu. 
Refer to 
3.2.2 Backlight
 and 3.2.13 Contrast. 
Note: Using back light on  batt ery pow er w ill su bstantially redu ce bat tery pow er. We 
suggest th at y ou dim  the back light while work ing in  a w ell-lit area or set  it to 
automatic power off when the computer isn’t actively used. 
Use the following key combinations to adjust the backlight for the mobile computer’s LCD 
and keypad, and also the contrast for the LC D. Combine the  keys by pressing  the [fn] 
key first and then pressing the second key. 
Key Combination 
Action 
24-key 44 key   
 + [Enter] 
  + [Enter]  Toggles on/off the backlight 
 + [Up] 
  + [Up]  Increases the contrast of LCD 
 + [Down] 
  + [Down]  Decreases the contrast of LCD 
 + [Right] 
 + [Right]  Turns on the  backl ight a nd i ncreases the bri ghtness of 
LCD/keypad backlight. 
 + [Left]  
 + [Left]  Turns on the backl ight and decr ease the bri ghtness of 
LCD/keypad backlight. 
    + [3]  Same as   + [Up] 










