Replacement Parts
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7.0 Replacement Parts
7.1 Printhead
The SST4 uses a thin film printhead that dissipates heat faster than thick film, providing a longer head life. Printhead warranty
is 1,000,000 linear inches (when used with direct thermal labels or 2,000,000 inches in the thermal transfer mode (with ribbons).
See
for printhead module replacement.
7.2 Mean Time to Repair (MTTR)
Estimated MTTR the printer is less than 15 minutes. A number of factors contribute to the ease of service. Primarily, all
electronics including the power supply are located on a single plug-in circuit board. Most electronic problems can be isolated
and repaired with a simple board swap.
The printhead is also designed for easy replacement. One mounting screw and two locator pins eliminate the mechanical head
adjustments required of other thermal label printers.
7.3 CPU Board Replacement
Removal:
1. Touch a bare metal part of the printer frame to dissipate any static electricity that may be present.
2. Turn the printer off and unplug from the outlet.
3. Unlatch the SST4 hinges.
4. Unplug all cables that connect to the CPU board. It is recommended to take a picture or label all connections before
disconnecting them for ease of re-installation.
5. Unscrew the screws that attach the CPU board to the printer frame and slide the CPU board out.
Replacement:
1. Slide new CPU board into the enclosure.
2. Use screws to attach board to enclosure.
3. Reconnect all ribbon cables and connectors. All connectors and cables are marked to corresponding board
placement.
Part No.
Description
Part No.
Description
209136 Board, main
209138 Display, front panel
209137 Power supply
109636 Ribbon cable 26 inch
209107 Printhead, 203 DPI
88733
Breather vent
Consult Upper platen roller kit
88734
Nut, breather vent M12x1
209138 Display
209082 Internal Printer
108717 Gasket, label presentation
209083 Internal Printer with Wi-Fi Module
108894 Gasket, latch mount
209084 Internal Printer with Internal Rewind
Consult 3/1.5 inch media supply hub
209085 Internal Printer with Wi-Fi Module and
Internal Rewind
Consult Stepper motor
Table 7-1. Replacement Parts