diff --git a/backend/pixma/pixma.c b/backend/pixma/pixma.c
index 28b273ad8..c32907cf4 100644
--- a/backend/pixma/pixma.c
+++ b/backend/pixma/pixma.c
@@ -92,7 +92,7 @@
  */
 #include "pixma_sane_options.h"
 
-#define BUTTON_GROUP_SIZE ( opt_scan_resolution - opt_button_1 + 1 )
+#define BUTTON_GROUP_SIZE ( opt_adf_orientation - opt_button_1 + 1 )
 #define BUTTON_GROUP_INDEX(x) ( x - opt_button_1 )
 
 typedef struct pixma_sane_t
@@ -318,6 +318,9 @@ update_button_state (pixma_sane_t * ss, SANE_Int * info)
     OVAL (opt_original).w = GET_EV_ORIGINAL(ev);
     OVAL (opt_target).w = GET_EV_TARGET(ev);
     OVAL (opt_scan_resolution).w = GET_EV_DPI(ev);
+    OVAL (opt_document_type).w = GET_EV_DOC(ev);
+    OVAL (opt_adf_status).w = GET_EV_STAT(ev);
+    OVAL (opt_adf_orientation).w = GET_EV_ORIENT(ev);
     }
   mark_all_button_options_cached(ss);
 }
@@ -749,6 +752,9 @@ control_option (pixma_sane_t * ss, SANE_Int n,
       case opt_original:
       case opt_target:
       case opt_scan_resolution:
+      case opt_document_type:
+      case opt_adf_status:
+      case opt_adf_orientation:
         /* poll scanner if option is not cached */
         if (! ss->button_option_is_cached[ BUTTON_GROUP_INDEX(n) ] )
           update_button_state (ss, info);
@@ -2212,6 +2218,21 @@ type int scan-resolution
   title Scan resolution
   cap soft_detect advanced
 
+type int document-type
+  default 0
+  title Document type
+  cap soft_detect advanced
+
+type int adf-status
+  default 0
+  title ADF status
+  cap soft_detect advanced
+
+type int adf-orientation
+  default 0
+  title ADF orientation
+  cap soft_detect advanced
+
 rem -------------------------------------------
 type group
   title Extras
diff --git a/backend/pixma/pixma.h b/backend/pixma/pixma.h
index b9aeb7f4b..27c472353 100644
--- a/backend/pixma/pixma.h
+++ b/backend/pixma/pixma.h
@@ -171,13 +171,19 @@ typedef uint32_t uint32_t;
 #define PIXMA_EV_ACTION_MASK   (0xffffff)
 #define PIXMA_EV_BUTTON1       (1 << 24)
 #define PIXMA_EV_BUTTON2       (2 << 24)
-#define PIXMA_EV_TARGET_MASK   (0xff)
-#define PIXMA_EV_ORIGINAL_MASK (0xff00)
-#define PIXMA_EV_DPI_MASK      (0xff0000)
+#define PIXMA_EV_TARGET_MASK   (0x0f)
+#define PIXMA_EV_ORIGINAL_MASK (0x0f00)
+#define PIXMA_EV_DPI_MASK      (0x0f0000)
+#define PIXMA_EV_DOC_MASK      (0xf000)
+#define PIXMA_EV_STAT_MASK     (0xf00000)
+#define PIXMA_EV_ORIENT_MASK   (0xf0)
 
 #define GET_EV_TARGET(x) (x & PIXMA_EV_TARGET_MASK)
 #define GET_EV_ORIGINAL(x) ( (x & PIXMA_EV_ORIGINAL_MASK) >> 8 )
 #define GET_EV_DPI(x) ( (x & PIXMA_EV_DPI_MASK) >> 16 )
+#define GET_EV_DOC(x) ( (x & PIXMA_EV_DOC_MASK) >> 12 )
+#define GET_EV_STAT(x) ( (x & PIXMA_EV_STAT_MASK) >> 20 )
+#define GET_EV_ORIENT(x) ( (x & PIXMA_EV_ORIENT_MASK) >> 4 )
 
 /**@}*/
 /** @} end of API group */
diff --git a/backend/pixma/pixma_mp150.c b/backend/pixma/pixma_mp150.c
index 0710f2e5e..b917e5877 100644
--- a/backend/pixma/pixma_mp150.c
+++ b/backend/pixma/pixma_mp150.c
@@ -914,7 +914,8 @@ handle_interrupt (pixma_t * s, int timeout)
       || s->cfg->pid == MX920_PID
       || s->cfg->pid == MB2300_PID
       || s->cfg->pid == MB5000_PID
-      || s->cfg->pid == MB5400_PID)
+      || s->cfg->pid == MB5400_PID
+      || s->cfg->pid == TR4500_PID)
   /* button no. in buf[7]
    * size in buf[10] 01=A4; 02=Letter; 08=10x15; 09=13x18; 0b=auto
    * format in buf[11] 01=JPEG; 02=TIFF; 03=PDF; 04=Kompakt-PDF
@@ -922,9 +923,28 @@ handle_interrupt (pixma_t * s, int timeout)
    * target = format; original = size; scan-resolution = dpi */
   {
     if (buf[7] & 1)
-      s->events = PIXMA_EV_BUTTON1 | buf[11] | buf[10]<<8 | buf[12]<<16;    /* color scan */
+    {
+      /* color scan */
+      s->events = PIXMA_EV_BUTTON1 | (buf[11] & 0x0f) | (buf[10] & 0x0f) << 8
+                  | (buf[12] & 0x0f) << 16;
+    }
     if (buf[7] & 2)
-      s->events = PIXMA_EV_BUTTON2 | buf[11] | buf[10]<<8 | buf[12]<<16;    /* b/w scan */
+    {
+      /* b/w scan */
+      s->events = PIXMA_EV_BUTTON2 | (buf[11] & 0x0f) | (buf[10] & 0x0f) << 8
+                  | (buf[12] & 0x0f) << 16;
+    }
+
+    /* some scanners provide additional information:
+     * document type in buf[6] 01=Document; 02=Photo; 03=Auto Scan
+     * ADF status in buf[8] 01 = ADF empty; 02 = ADF filled
+     * ADF orientation in buf[16] 01=Portrait; 02=Landscape */
+    if (s->cfg->pid == TR4500_PID)
+      {
+        s->events |= (buf[6] & 0x0f) << 12;
+        s->events |= (buf[8] & 0x0f) << 20;
+        s->events |= (buf[16] & 0x0f) << 4;
+      }
   }
   else if (s->cfg->pid == LIDE300_PID
            || s->cfg->pid == LIDE400_PID)
@@ -932,10 +952,16 @@ handle_interrupt (pixma_t * s, int timeout)
    * target in buf[0x13] 01=copy; 02=auto; 03=send; 05=start PDF; 06=finish PDF
    * "Finish PDF" is Button-2, all others are Button-1 */
   {
-      if (buf[0x13] == 0x06)
-        s->events = PIXMA_EV_BUTTON2 | buf[0x13];   /* button 2 = cancel / end scan */
-      else if (buf[0x13])
-        s->events = PIXMA_EV_BUTTON1 | buf[0x13];   /* button 1 = start scan */
+    if (buf[0x13] == 0x06)
+    {
+      /* button 2 = cancel / end scan */
+      s->events = PIXMA_EV_BUTTON2 | (buf[0x13] & 0x0f);
+    }
+    else if (buf[0x13])
+    {
+      /* button 1 = start scan */
+      s->events = PIXMA_EV_BUTTON1 | (buf[0x13] & 0x0f);
+    }
   }
   else
   /* button no. in buf[0]
@@ -951,9 +977,15 @@ handle_interrupt (pixma_t * s, int timeout)
     if (buf[9] & 2)
       query_status (s);
     if (buf[0] & 2)
-      s->events = PIXMA_EV_BUTTON2 | buf[1] | ((buf[0] & 0xf0) << 4);	/* b/w scan */
+    {
+      /* b/w scan */
+      s->events = PIXMA_EV_BUTTON2 | (buf[1] & 0x0f) | (buf[0] & 0xf0) << 4;
+    }
     if (buf[0] & 1)
-      s->events = PIXMA_EV_BUTTON1 | buf[1] | ((buf[0] & 0xf0) << 4);	/* color scan */
+    {
+      /* color scan */
+      s->events = PIXMA_EV_BUTTON1 | (buf[1] & 0x0f) | ((buf[0] & 0xf0) << 4);
+    }
   }
   return 1;
 }
@@ -1825,7 +1857,7 @@ const pixma_config_t pixma_mp150_devices[] = {
   DEVICE ("Canon PIXMA TR7530 Series", "TR7530", TR7530_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS | PIXMA_CAP_ADF),
   DEVICE ("Canon PIXUS XK50 Series", "XK50", XK50_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS),
   DEVICE ("Canon PIXUS XK70 Series", "XK70", XK70_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS),
-  DEVICE ("Canon PIXMA TR4500 Series", "TR4500", TR4500_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS | PIXMA_CAP_ADF),
+  DEVICE ("Canon PIXMA TR4500 Series", "TR4500", TR4500_PID, 0, 600, 0, 0, 638, 877, PIXMA_CAP_CIS | PIXMA_CAP_ADF | PIXMA_CAP_ADF_JPEG),   /* ToDo: max. scan resolution = 600x1200dpi */
   DEVICE ("Canon PIXMA E4200 Series", "E4200", E4200_PID, 0, 600, 0, 0, 638, 877, PIXMA_CAP_CIS | PIXMA_CAP_ADF),
   DEVICE ("Canon PIXMA TS6200 Series", "TS6200", TS6200_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS),
   DEVICE ("Canon PIXMA TS6280 Series", "TS6280", TS6280_PID, 0, 1200, 0, 0, 638, 877, PIXMA_CAP_CIS),
diff --git a/backend/pixma/pixma_mp800.c b/backend/pixma/pixma_mp800.c
index 942a45dea..905c246fb 100644
--- a/backend/pixma/pixma_mp800.c
+++ b/backend/pixma/pixma_mp800.c
@@ -1172,9 +1172,17 @@ static int handle_interrupt (pixma_t * s, int timeout)
    * target = format; original = size; scan-resolution = dpi */
   {
     if (buf[7] & 1)
-      s->events = PIXMA_EV_BUTTON1 | buf[11] | buf[10]<<8 | buf[12]<<16;    /* color scan */
+    {
+      /* color scan */
+      s->events = PIXMA_EV_BUTTON1 | (buf[11] & 0x0f) | (buf[10] & 0x0f) << 8
+                  | (buf[12] & 0x0f) << 16;
+    }
     if (buf[7] & 2)
-      s->events = PIXMA_EV_BUTTON2 | buf[11] | buf[10]<<8 | buf[12]<<16;    /* b/w scan */
+    {
+      /* b/w scan */
+      s->events = PIXMA_EV_BUTTON2 | (buf[11] & 0x0f) | (buf[10] & 0x0f) << 8
+                  | (buf[12] & 0x0f) << 16;
+    }
   }
   else if (s->cfg->pid == CS8800F_PID
             || s->cfg->pid == CS9000F_PID
@@ -1185,9 +1193,15 @@ static int handle_interrupt (pixma_t * s, int timeout)
   {
     if ((s->cfg->pid == CS8800F_PID && buf[1] == 0x70)
         || (s->cfg->pid != CS8800F_PID && buf[1] == 0x50))
-      s->events = PIXMA_EV_BUTTON2 | buf[1] >> 4;  /* button 2 = cancel / end scan */
+    {
+      /* button 2 = cancel / end scan */
+      s->events = PIXMA_EV_BUTTON2 | buf[1] >> 4;
+    }
     else
-      s->events = PIXMA_EV_BUTTON1 | buf[1] >> 4;  /* button 1 = start scan */
+    {
+      /* button 1 = start scan */
+      s->events = PIXMA_EV_BUTTON1 | buf[1] >> 4;
+    }
   }
   else
   /* button no. in buf[0]
@@ -1204,9 +1218,15 @@ static int handle_interrupt (pixma_t * s, int timeout)
       query_status (s);
 
     if (buf[0] & 2)
-      s->events = PIXMA_EV_BUTTON2 | buf[1] | ((buf[0] & 0xf0) << 4); /* b/w scan */
+    {
+      /* b/w scan */
+      s->events = PIXMA_EV_BUTTON2 | (buf[1] & 0x0f) | (buf[0] & 0xf0) << 4;
+    }
     if (buf[0] & 1)
-      s->events = PIXMA_EV_BUTTON1 | buf[1] | ((buf[0] & 0xf0) << 4); /* color scan */
+    {
+      /* color scan */
+      s->events = PIXMA_EV_BUTTON1 | (buf[1] & 0x0f) | (buf[0] & 0xf0) << 4;
+    }
   }
   return 1;
 }
diff --git a/doc/descriptions/pixma.desc b/doc/descriptions/pixma.desc
index 424e4d4e6..b7d38580d 100644
--- a/doc/descriptions/pixma.desc
+++ b/doc/descriptions/pixma.desc
@@ -866,8 +866,8 @@
 :model "PIXMA TR4500 Series"
 :interface "USB WiFi"
 :usbid "0x04a9" "0x1854"
-:status :untested
-:comment "Testers needed!"
+:status :complete
+:comment "Flatbed and ADF scan. All resolutions supported (up to 600DPI)"
 
 :model "PIXMA TR7500 Series"
 :interface "USB WiFi"
diff --git a/doc/sane-pixma.man b/doc/sane-pixma.man
index 23bc147c4..f7890e7fe 100644
--- a/doc/sane-pixma.man
+++ b/doc/sane-pixma.man
@@ -51,6 +51,8 @@ PIXMA MX410, MX420, MX470, MX510, MX520, MX530, MX700, MX720
 .br
 PIXMA MX850, MX860, MX870, MX882, MX885, MX890, MX920, MX7600
 .br
+PIXMA TR4500
+.br
 PIXMA TS3100, TS3300, TS5000, TS5100, TS6100, TS6200, TS8000
 .br
 PIXMA TS8200
@@ -113,7 +115,7 @@ PIXMA MX320, MX390, MX430, MX450, MX490, MX710
 .br
 PIXMA G3000, G3010, G4010, G6000, G6080, G7000, GM4000
 .br
-PIXMA TR4500, TR7500, TR7530, TR8500, TR8530, TR8580, TR9530
+PIXMA TR7500, TR7530, TR8500, TR8530, TR8580, TR9530
 .br
 PIXMA TS6000, TS6130, TS6180, TS6230, TS6280, TS6300, TS6330
 .br
@@ -238,10 +240,25 @@ or 1 = JPEG, 2 = TIFF, 3 = PDF, 4 = Compact PDF. For some scanners this value
 is equivalent to the number of the pressed button. Not all scanners can provide
 this data.
 .TP
-.I scan-resolution
+.I scan\-resolution
 (read only) Returns the resolution of the scan operation if the scanner
 provides that data. Known values: 1 = 75 dpi, 2 = 150 dpi, 3 = 300 dpi,
 4 = 600 dpi. Not all scanners can provide this data.
+.TP
+.I document\-type
+(read only) Returns the type of the scanned document if the scanner provides
+that data. Known values: 1 = Document, 2 = Photo, 3 = Auto scan. Not all scanners
+can provide this data.
+.TP
+.I adf\-status
+(read only) Returns the status of the document feeder if the scanner provides
+that data. Known values: 1 = ADF empty, 2 = ADF filled. Not all scanners can
+provide this data.
+.TP
+.I adf\-orientation
+(read only) Returns the scan orientation of the medium scanned from ADF if the
+scanner provides that data. Known values: 1 = Portrait, 2 = Landscape. Not all
+scanners can provide this data.
 .SH FILES
 .TP
 .I @LIBDIR@/libsane\-pixma.a