
11. TROUBLESHOOTING  | 
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  | 11. TROUBLESHOOTING  | 
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Other problems  | Cause  | Corrective action  | 
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IrDA communication  | The communication  | Send the correct  | 
cannot be used.  | mode is incorrect.  | communication mode.  | 
  | 
  | 
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  | The printer ID is  | Set the correct printer ID  | 
  | incorrect.  | on the PC or handy  | 
  | 
  | terminal.  | 
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  | The IrDA interface  | Move the printer so that  | 
  | window faces improper  | the IrDA interface  | 
  | direction.  | window faces the PC's  | 
  | 
  | or handy terminal's one.  | 
  | 
  | 
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  | The print mode is  | Correct the print mode.  | 
  | incorrect.  | 
  | 
  | 
  | 
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  | The transmission rate  | Correct the transmission  | 
  | is incorrect.  | rate.  | 
  | 
  | 
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Serial interface  | The printer power is not  | Turn on the power. | 
communication cannot  | turned on.  | 
  | 
be used. (GH20 model  | 
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  | Firmly connect the serial  | |
only)  | The serial interface  | |
  | cable is not connected.  | interface cable. | 
  | 
  | 
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  | The print mode is  | Correct the print mode.  | 
  | incorrect.  | 
  | 
  | 
  | 
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  | The transmission rate  | Correct the transmission  | 
  | is incorrect.  | rate.  | 
  | 
  | 
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