diff --git a/ChangeLog b/ChangeLog
index 8160db407..d17362711 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,10 +4,11 @@
 	  Fix warnings about ignored --datarootdir
 	* backend/hp5590_low.c: Fix incompatible pointer type warning
 	* backend/genesys_gl646.c: Fix incompatible pointer type warning
-	* backend/dc25.c, backend/epson2.c, backend/epson2-commands.c,
-	  backend/epson2-io.c, backend/epson2_net.c, backend/genesys.c,
-	  backend/genesys_gl841.c, backend/hp3900_usb.c, backend/lexmark_low.c,
-	  backend/plustek-usbhw.c, backend/sm3840.c: Fix format warnings
+	* backend/dc25.c, backend/coolscan2.c, backend/epson2.c,
+	  backend/epson2-commands.c, backend/epson2-io.c, backend/epson2_net.c,
+	  backend/genesys.c, backend/genesys_gl841.c, backend/hp3900_usb.c,
+	  backend/lexmark_low.c, backend/plustek-usbhw.c, backend/sm3840.c:
+	  Fix format warnings
 	* backend/pixma.c: Add missing #include
 
 2008-02-02  Mattias Ellert <mattias.ellert@tsl.uu.se>
diff --git a/backend/coolscan2.c b/backend/coolscan2.c
index 003ed901c..2f597bf7a 100644
--- a/backend/coolscan2.c
+++ b/backend/coolscan2.c
@@ -1525,7 +1525,7 @@ sane_read (SANE_Handle h, SANE_Byte * buf, SANE_Int maxlen, SANE_Int * len)
       xfer_len_in += s->block_padding;
       i = (xfer_len_in & 0x3f);
       if (i != 0)
-        DBG (1, "BUG: sane_read(): Read size is not a multiple of 64. (0x%06x)\n", i);
+        DBG (1, "BUG: sane_read(): Read size is not a multiple of 64. (0x%06lx)\n", (long) i);
     }
 
   if (s->xfer_position + xfer_len_line > s->xfer_bytes_total)
diff --git a/backend/epson2-commands.c b/backend/epson2-commands.c
index 626893ca7..ba837e0fa 100644
--- a/backend/epson2-commands.c
+++ b/backend/epson2-commands.c
@@ -335,18 +335,18 @@ esci_request_extended_identity(SANE_Handle handle, unsigned char *buf)
 		return status;
 
 	DBG(1, " command level   : %c%c\n", buf[0], buf[1]);
-	DBG(1, " basic resolution: %lu\n", le32atoh(&buf[4]));
-	DBG(1, " min resolution  : %lu\n", le32atoh(&buf[8]));
-	DBG(1, " max resolution  : %lu\n", le32atoh(&buf[12]));
-	DBG(1, " max pixel num   : %lu\n", le32atoh(&buf[16]));
+	DBG(1, " basic resolution: %lu\n", (u_long) le32atoh(&buf[4]));
+	DBG(1, " min resolution  : %lu\n", (u_long) le32atoh(&buf[8]));
+	DBG(1, " max resolution  : %lu\n", (u_long) le32atoh(&buf[12]));
+	DBG(1, " max pixel num   : %lu\n", (u_long) le32atoh(&buf[16]));
 	DBG(1, " scan area       : %lux%lu\n",
-	    le32atoh(&buf[20]), le32atoh(&buf[24]));
+	    (u_long) le32atoh(&buf[20]), (u_long) le32atoh(&buf[24]));
 
 	DBG(1, " adf area        : %lux%lu\n",
-	    le32atoh(&buf[28]), le32atoh(&buf[32]));
+	    (u_long) le32atoh(&buf[28]), (u_long) le32atoh(&buf[32]));
 
 	DBG(1, " tpu area        : %lux%lu\n",
-	    le32atoh(&buf[36]), le32atoh(&buf[40]));
+	    (u_long) le32atoh(&buf[36]), (u_long) le32atoh(&buf[40]));
 
 	DBG(1, " main status     : 0x%02x\n", buf[44]);
 	DBG(1, " input depth     : %d\n", buf[66]);
@@ -507,12 +507,12 @@ esci_set_scanning_parameter(SANE_Handle handle, unsigned char *buf)
 	params[0] = FS;
 	params[1] = 'W';
 
-	DBG(10, "resolution of main scan     : %lu\n", le32atoh(&buf[0]));
-	DBG(10, "resolution of sub scan      : %lu\n", le32atoh(&buf[4]));
-	DBG(10, "offset length of main scan  : %lu\n", le32atoh(&buf[8]));
-	DBG(10, "offset length of sub scan   : %lu\n", le32atoh(&buf[12]));
-	DBG(10, "scanning length of main scan: %lu\n", le32atoh(&buf[16]));
-	DBG(10, "scanning length of sub scan : %lu\n", le32atoh(&buf[20]));
+	DBG(10, "resolution of main scan     : %lu\n", (u_long) le32atoh(&buf[0]));
+	DBG(10, "resolution of sub scan      : %lu\n", (u_long) le32atoh(&buf[4]));
+	DBG(10, "offset length of main scan  : %lu\n", (u_long) le32atoh(&buf[8]));
+	DBG(10, "offset length of sub scan   : %lu\n", (u_long) le32atoh(&buf[12]));
+	DBG(10, "scanning length of main scan: %lu\n", (u_long) le32atoh(&buf[16]));
+	DBG(10, "scanning length of sub scan : %lu\n", (u_long) le32atoh(&buf[20]));
 	DBG(10, "scanning color              : %d\n", buf[24]);
 	DBG(10, "data format                 : %d\n", buf[25]);
 	DBG(10, "option control              : %d\n", buf[26]);
diff --git a/backend/epson2-io.c b/backend/epson2-io.c
index 2276cb629..e720d07b6 100644
--- a/backend/epson2-io.c
+++ b/backend/epson2-io.c
@@ -117,7 +117,7 @@ e2_recv(Epson_Scanner * s, void *buf, ssize_t buf_size,
 {
 	ssize_t n = 0;
 
-	DBG(15, "%s: size = %d, buf = %p\n", __func__, buf_size, buf);
+	DBG(15, "%s: size = %ld, buf = %p\n", __func__, (long) buf_size, buf);
 
 	if (s->hw->connection == SANE_EPSON_NET) {
 		n = sanei_epson_net_read(s, buf, buf_size, status);
diff --git a/backend/epson2.c b/backend/epson2.c
index 1bb2d03b2..163ec898f 100644
--- a/backend/epson2.c
+++ b/backend/epson2.c
@@ -3817,9 +3817,9 @@ e2_start_ext_scan(Epson_Scanner * s)
 	s->ext_counter = 0;
 
 	DBG(5, " status         : 0x%02x\n", buf[1]);
-	DBG(5, " block size     : %lu\n", le32atoh(&buf[2]));
-	DBG(5, " block count    : %lu\n", le32atoh(&buf[6]));
-	DBG(5, " last block size: %lu\n", le32atoh(&buf[10]));
+	DBG(5, " block size     : %lu\n", (u_long) le32atoh(&buf[2]));
+	DBG(5, " block count    : %lu\n", (u_long) le32atoh(&buf[6]));
+	DBG(5, " last block size: %lu\n", (u_long) le32atoh(&buf[10]));
 
 	if (s->ext_last_len) {
 		s->ext_blocks++;