iSys V12 Thermal Printer - Manual (Page 30)

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Removing the side panels
1. On the bottom of the plotter, remove the two side 6/32” x 3/8” screws and washers from the
appropriate side- figure 7-4.
2. Open the plotter lid. Remove the two interior side panel 6/32” x 3/8” screws from the
appropriate side as shown in Figure 7-5.
3. Remove the side panel.
NOTE: For the right side panel, disconnect the 5-pin control panel cable as shown in Figure 7-6.
Note the cable orientation for reinstallation.
Opening the bottom panel
1. Remove the six bottom panel screws shown in Figure 7-4.
2. The bottom plate hinges down. Take care not to overstress the fan wires, or chassis
grounding wire.
Replacing the display board
The display board is located underneath the control panel switch pad. Switches are sealed in
the switch pad and should they fail, replacement of the switch pad will be necessary.
1. Remove the right side panel as described in this chapter.
2. Remove the two 4/40” x 1/4” display board screws as shown in Figure 7-7.
3. Disconnect the two cables from the front and rear of the display board. See Figure 7-8.
4. Replace the display board and reverse steps to reassemble.
Replacing the thermal printhead
1. Open the plotter lid. Disconnect the data and power cables from the back of the printhead.
(see Figure 7-1).
2. Remove the media pressure bar below the printhead.
3. Using a probe or small screwdriver, push the rear spring pin on the left side of the plotter lid
until the head plate can be rotated downwards from the hole (see Figure 7-9). Push in the front
of the pin; pull the left side of the head plate downwards until the plate is free of the left side
arm.
4. Remove the printhead by pulling to the left thereby disengaging the right head plate pins from
the right side arm. See Figure 7-10.
5. Remove the printhead from its plate by removing the six plate mounting screws shown in
Figure 7-11. \
6. Replace the printhead and reverse steps to reassemble.
NOTE: When replacing the printhead and plate, ensure that the tension springs (shown in
Figure 7-11) are securely seated in their holes in the lid.