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Symbol reserves the right to make changes to any product to improve reliability, function, or design. Symbol does not assume any product liability arising out of, or in connection with, the application or use of any product, circuit, or application described herein.
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Q u i c k R e f e r e n c e Introduction The 4121GPRS Terminal is a durable hand-held or vehicle-mount radio data terminal. You can enter data by using the custom keypad, bar code scanner, or a combination of the two. You can transmit data from the terminal immediately by the radio link to a host computer.
Operating the Terminal on page 4 • Maintaining the Terminal on page 5 • Troubleshooting on page 6 • Regulatory Information on page Accessories The following optional accessories are available from Symbol Technologies: • Belt Attachment • DIAD IV Depot Charger • Stylus •...
Q u i c k R e f e r e n c e Parts of the Terminal Exit Key state Scan window indicator keys Microphone Photo Stop sensor complete Battery status LED Escape Space display Speaker Soft key cycle key Key state Delete key Backspace...
Charging the Internal Battery The terminal is shipped with a discharged internal battery. To fully charge the battery before using the terminal for the first time, store the terminal in the DIAD IV Depot Charger for up to six hours. While the battery charges, the battery status LED on the terminal is solid yellow.
Maintaining the Terminal The terminal is factory-sealed and contains no user-serviceable parts. Only qualified Symbol Service Centers should service the terminal. Clean the casing, keyboard, and display window by wiping with a soft cloth. If necessary, use the following Oasis products: •...
Troubleshooting Problem Cause Solution The terminal Battery not Recharge the terminal’s battery us- does not power charged. ing the charger. on or shuts off suddenly. Cannot see char- The terminal’s not Press any key to power on the ter- acters on display. powered on.
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Q u i c k R e f e r e n c e Problem Cause Solution The terminal Unreadable bar Ensure the symbol is not defaced. does not accept code. scan input. Distance be- Ensure you are within proper scan- tween exit window ning range.
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