diff --git a/Code/thermal_printer/etc/systemd/system/devterm-printer.service b/Code/thermal_printer/etc/systemd/system/devterm-printer.service
index f4e93ac..0f0812d 100644
--- a/Code/thermal_printer/etc/systemd/system/devterm-printer.service
+++ b/Code/thermal_printer/etc/systemd/system/devterm-printer.service
@@ -4,6 +4,7 @@ After=devterm-socat
 
 [Service]
 Type=simple
+EnvironmentFile=/usr/local/etc/devterm-printer
 StandardOutput=file:/tmp/devterm_printer.log
 StandardError=file:/tmp/devterm_printer.err.log
 ExecStart=/usr/local/bin/devterm_thermal_printer.elf
diff --git a/Code/thermal_printer/usr/local/etc/devterm-printer b/Code/thermal_printer/usr/local/etc/devterm-printer
new file mode 100644
index 0000000..1ac3fd4
--- /dev/null
+++ b/Code/thermal_printer/usr/local/etc/devterm-printer
@@ -0,0 +1 @@
+TTF=/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc