Dram - Printronix T3204 Maintenance Manual

DRAM

DRAM SIMMs may need to be replaced if (1) they are found to be defective
during troubleshooting or (2) a particular application requires printing of a
longer label than is possible using the standard DRAM capacity (see page
1–10). The standard DRAM memory size is 1 MByte, which may be
expanded to a maximum of 17 MBytes.
Before removing cover, turn power off, and unplug printer from supply
voltage.
Removal
1. Remove the printer cover (see page 7–3).
2. Locate connector J1 (see Figure 7–24).
3. Align the SIMM module's contacts with the connector, as shown in
Figure 7–22. The notch in the SIMM module does not allow it to fit into
the socket unless it is in the correct orientation.
4. Push forward on the module until the plastic hooks on the socket
engage with the holes on the module, and snap it into place.
The printer is configured to the amount of memory expansion by setting jumpers on
the Printer Controller PCBA. Figure 7–23 shows the permissible jumper locations.
No Module
To expand to 5 MBytes – Move jumper to E20–21
To expand to 17 MBytes – Move jumper to E22–23
7–22
WARNING
Figure 7–22
4 MB Module
Figure 7–23
16 MB Module
Removal and Replacement