Citizen Systems CLP-621 Betriebsanweisung

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1. Remove the screws (2) that anchor the bracket of the interface

board then pull the interface board towards you. When you do
this, be careful not to perform any unreasonable operations that
will damage the connecting cable and do not pull the cable too
much. If you do, it will cause a malfunction.

Always turn off the power to the printer before replacing the interface
board. Do not pull it out with unnecessary force. This will cause an
accident.

Interface Board

Interface Cable

Rear Side

Screw

2. Remove the connecting cable from the interface board and

reconnect  the  cable  to  the  connector  of  the  replacement
interface board

Rear Side

Interface Cable

Ethernet
Interface Board