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iDP-3221 Service Manual
2. Removing the Upper Cover (1) Remove the head springs from the hooks and detach the platen roller. (2) Remove the two screws (M3´8). (3) Lift the back of the upper cover to open it. ¬and -) to unlock the claws. (4) Lift the upper cover gently and disconnect the connectors of sensors (such as paper near-end sensor when paper of 58 mm width is used) from the control board. (5) Remove the upper cover by lifting it upward while paying attention so as not it is disturbed by the head springs. With this condition, insert a flat-blade screwdriver into the slit at the front of the printer (between the chassis and upper cover
