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
 
50 
8700 Series Mobile Computer Reference Manual
Note:  The password is case-sensitive. To disable a previous password, press both [Enter] 
when you are asked to "Input new password" and "Verify password". 
3.2.7 FONT 
Shows the font information. It displays “System Font” if no custom font file is a ctive on 
the mobile computer. If a multi-language font file is downloaded, you are able to select a 
font from the list. 
3.2.8 SCREEN CALIBRATION 
When a to uch screen has served for a period  of  t ime, it  n eeds calibrat ion t o w ork 
accurately. C alibration improv es t he accu racy of  t he touc h scr een by  al igning the 
coordinates of the touch panel and the LCD underneath it. 
“Screen Cal ibration” is a command that  l aunches t he mobi le computer’s acti on directly. 
Upon your selecting this command, the screen di splay four cross marks, one at a time at 
the fo ur co rners of  the screen. A ccurately and firmly tap on the  centers of these cross 
marks using the stylus to follow through the calibration. 
Warning:  DO NOT use any pointed or sharp object to tap on the screen. 
3.2.9 USB VCOM NO. 
USB VC OM N o. is set t o “ Fixed” by  def ault. “Fixed” m eans the m obile computer will 
always connect to a host computer (such a s your PC) by the same USB Vi rtual COM port 
regardless of how many mobile computers are connected to it earlier or later. 
When the USB VC OM No. is set to “Fixed”, yo u can only connect one mobile computer to 
your P C at one time. Such  setting i s hel pful to configure a great amou nt of mobil e 
computers (for administrators’ or factory use). 
While in  other cases, y ou may n eed to set USB VC OM No. to “Change with S/N”, wh ich 
means the number of th e virtual COM port in use will vary by th e serial number of each 
mobile computer connected to your PC. 
  Press the n avigation k eys [U p] and [Down] to select be tween “Fixe d” a nd “Change 
with Serial Number”. 
3.2.10 USB CHARGE CURRENT 
By default, the USB charging curr ent is se t to 500 mA.  For direct charging via the USB  
cable without a power adapter, the standard charging current is 500 mA. 
  Press the navigation keys [Up] and [Down] to select between “500 mA” and “0 mA”. 
  To disable charging the mobile computer, select “0 mA”. 










