diff --git a/README b/README
index 8464b3d..2ec82c8 100644
--- a/README
+++ b/README
@@ -48,6 +48,7 @@
   Work-in-progress Printers:
 
    DNP DS80DX
+   Mitsubishi CP-3020D/DE and CP-3020DA/DAE
    Mitsubishi CP-D70DW, CP-D707DW, and CP-D80DW
    Mitsubishi CP-9000DW, CP-9500DW, and CP-9600DW-S
    Mitsubishi CP-9800DW, CP-9800DW-S, CP-9810DW, and CP-9820DW-S
@@ -221,6 +222,11 @@
      Kodak 1400
      Kodak 805
 
+   Work-in-progress printers:
+
+     Mitsubishi CP3020D/DE
+     Mitsubishi CP3020DA/DAE
+
    Valid commands:
 
      -C filename        Set tone curve [1]
@@ -538,11 +544,14 @@
 
     Mitsubishi CP-D70DW
     Mitsubishi CP-D707DW
+    Mitsubishi CP-D80DW
 
    Unsupported printers (Unknown VID/PID):
 
-    Mitsubishi CP-D80DW
     Fujifilm ASK-300
+    Mitsubishi CP-D70DW-S
+    Mitsubishi CP-D707DW-S
+    Mitsubishi CP-D80DW-S
 
    *** VERY IMPORTANT ***
 
@@ -592,6 +601,12 @@
     Mitsubishi CP-9800DZ/DZS/DW-S                     [1]
     Mitsubishi CP-9600D/DW
     
+   Unverified/untested, but should work:  (let us know, please!)
+
+    Mitsubishi CP-9800D/DW                            [1]
+    Mitsubishi CP-9810D/DW                            [1]
+    Mitsubishi CP-9820DW-S                            [1]
+
    Work-in-progress printers:
 
     Mitsubishi CP-9000D/DW
@@ -600,9 +615,6 @@
    Unsupported (unknown VID/PID):
 
     Mitsubishi CP-9600DW-S/DZ/DZ-S
-    Mitsubishi CP-9800D/DW                            [1]
-    Mitsubishi CP-9810D/DW                            [1]
-    Mitsubishi CP-9820DW-S                            [1]
 
    Valid commands:
 
diff --git a/backend_kodak1400.c b/backend_kodak1400.c
index ccbdc86..504d904 100644
--- a/backend_kodak1400.c
+++ b/backend_kodak1400.c
@@ -608,6 +608,9 @@ top:
 #define USB_VID_KODAK       0x040A
 #define USB_PID_KODAK_1400  0x4022
 #define USB_PID_KODAK_805   0x4034
+#define USB_VID_MITSU        0x06D3
+#define USB_PID_MITSU_3020D  0x038B
+#define USB_PID_MITSU_3020DA 0x03AA
 
 struct dyesub_backend kodak1400_backend = {
 	.name = "Kodak 1400/805",
@@ -623,6 +626,8 @@ struct dyesub_backend kodak1400_backend = {
 	.devices = {
 	{ USB_VID_KODAK, USB_PID_KODAK_1400, P_KODAK_1400_805, "Kodak"},
 	{ USB_VID_KODAK, USB_PID_KODAK_805, P_KODAK_1400_805, "Kodak"},
+	{ USB_VID_MITSU, USB_PID_MITSU_3020D, P_KODAK_1400_805, ""},
+	{ USB_VID_MITSU, USB_PID_MITSU_3020DA, P_KODAK_1400_805, ""},
 	{ 0, 0, 0, ""}
 	}
 };
diff --git a/backend_mitsu70x.c b/backend_mitsu70x.c
index a99504f..1611019 100644
--- a/backend_mitsu70x.c
+++ b/backend_mitsu70x.c
@@ -108,7 +108,7 @@ typedef int (*send_image_dataFN)(struct BandImage *out, void *context,
 #define USB_VID_MITSU       0x06D3
 #define USB_PID_MITSU_D70X  0x3B30
 #define USB_PID_MITSU_K60   0x3B31
-//#define USB_PID_MITSU_D80   XXXXXX
+#define USB_PID_MITSU_D80   0x3B36
 #define USB_VID_KODAK       0x040a
 #define USB_PID_KODAK305    0x404f
 //#define USB_VID_FUJIFILM    XXXXXX
@@ -1688,7 +1688,7 @@ struct dyesub_backend mitsu70x_backend = {
 	.devices = {
 		{ USB_VID_MITSU, USB_PID_MITSU_D70X, P_MITSU_D70X, ""},
 		{ USB_VID_MITSU, USB_PID_MITSU_K60, P_MITSU_K60, ""},
-//	{ USB_VID_MITSU, USB_PID_MITSU_D80, P_MITSU_D80, ""},
+		{ USB_VID_MITSU, USB_PID_MITSU_D80, P_MITSU_D80, ""},
 		{ USB_VID_KODAK, USB_PID_KODAK305, P_KODAK_305, ""},
 //	{ USB_VID_FUJIFILM, USB_PID_FUJI_ASK300, P_FUJI_ASK300, ""},
 	{ 0, 0, 0, ""}
diff --git a/backend_mitsu9550.c b/backend_mitsu9550.c
index ea3cfb9..3023383 100644
--- a/backend_mitsu9550.c
+++ b/backend_mitsu9550.c
@@ -39,15 +39,17 @@
 
 #include "backend_common.h"
 
-#define USB_VID_MITSU       0x06D3
-#define USB_PID_MITSU_9000D  0x0393
-#define USB_PID_MITSU_9500D  0x0394
+#define USB_VID_MITSU        0x06D3
+#define USB_PID_MITSU_9500D  0x0393
+#define USB_PID_MITSU_9000D  0x0394
+#define USB_PID_MITSU_9000AM 0x0395
 #define USB_PID_MITSU_9550D  0x03A1
 #define USB_PID_MITSU_9550DS 0x03A5  // or DZ/DZS/DZU
 #define USB_PID_MITSU_9600D  0x03A9
 //#define USB_PID_MITSU_9600DS  XXXXXX
-//#define USB_PID_MITSU_9800D   XXXXXX
+#define USB_PID_MITSU_9800D  0x03AD
 #define USB_PID_MITSU_9800DS 0x03AE
+#define USB_PID_MITSU_98__D  0x3B21
 //#define USB_PID_MITSU_9810D   XXXXXX
 //#define USB_PID_MITSU_9820DS  XXXXXX
 
@@ -1203,14 +1205,16 @@ struct dyesub_backend mitsu9550_backend = {
 	.main_loop = mitsu9550_main_loop,
 	.query_serno = mitsu9550_query_serno,
 	.devices = {
+	{ USB_VID_MITSU, USB_PID_MITSU_9000AM, P_MITSU_9550, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9000D, P_MITSU_9550, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9500D, P_MITSU_9550, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9550D, P_MITSU_9550, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9550DS, P_MITSU_9550S, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9600D, P_MITSU_9600, ""},
 //	{ USB_VID_MITSU, USB_PID_MITSU_9600D, P_MITSU_9600S, ""},
-//	{ USB_VID_MITSU, USB_PID_MITSU_9800D, P_MITSU_9800, ""},
+	{ USB_VID_MITSU, USB_PID_MITSU_9800D, P_MITSU_9800, ""},
 	{ USB_VID_MITSU, USB_PID_MITSU_9800DS, P_MITSU_9800S, ""},
+	{ USB_VID_MITSU, USB_PID_MITSU_98__D, P_MITSU_9810, ""},
 //	{ USB_VID_MITSU, USB_PID_MITSU_9810D, P_MITSU_9810, ""},
 //	{ USB_VID_MITSU, USB_PID_MITSU_9820DS, P_MITSU_9820S, ""},
 	{ 0, 0, 0, ""}