diff -up epson-inkjet-printer-escpr-1.7.9/src/filter.c.filter epson-inkjet-printer-escpr-1.7.9/src/filter.c
--- epson-inkjet-printer-escpr-1.7.9/src/filter.c.filter	2021-02-09 05:43:33.000000000 +0100
+++ epson-inkjet-printer-escpr-1.7.9/src/filter.c	2021-03-17 01:26:25.891388047 +0100
@@ -33,6 +33,8 @@
 #include "epson-protocol.h"
 #include "epson-escpr-api.h"
 #include "epson-escpr-mem.h"
+#include "epson-escpr-services.h"
+#include "epson-escpage.h"
 
 #include "err.h"
 #include "mem.h"
@@ -41,6 +43,11 @@
 #include "libprtX.h"
 #include "optBase.h"
 #include "linux_cmn.h"
+#include "xfifo.h"
+
+extern EPS_ERR_CODE SetupJobAttrib (const EPS_JOB_ATTRIB*);
+extern EPS_ERR_CODE SendStartJob ();
+extern EPS_ERR_CODE PrintBand (const EPS_UINT8*, EPS_UINT32, EPS_UINT32*);
 
 #define WIDTH_BYTES(bits) (((bits) + 31) / 32 * 4)
 
@@ -380,7 +387,7 @@ main (int argc, char *argv[])
 	}
 	
 	printJob.jobStatus = EPS_STATUS_ESTABLISHED;
-	int printHeight = 0;
+    EPS_UINT32 printHeight = 0;
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////	
 
 	print_area_x = printJob.printableAreaWidth;
@@ -533,7 +540,7 @@ main (int argc, char *argv[])
 						memcpy(rever_buf + k*3, startpage + pos + (bandBmp.widthBytes - 6) - k*3, 3);
 					}
 				}
-				PrintBand (rever_buf, bandBmp.widthBytes, &printHeight);
+                PrintBand ((const EPS_UINT8 *)rever_buf, bandBmp.widthBytes, &printHeight);
 				pos -= bandBmp.widthBytes;
 			}
 
@@ -829,7 +836,7 @@ set_pips_parameter (filter_option_t *fil
 
 	/* Get number of pages */
 	char page_num;
-	read (STDIN_FILENO, &page_num, 1);
+    (void)read (STDIN_FILENO, &page_num, 1);
 
 	/* Others */
 	jobAttr.apfAutoCorrect = EPS_APF_ACT_STANDARD;
@@ -879,7 +886,7 @@ EPS_INT32 print_spool_fnc(void* hParam,
 
 //	fwrite (pBuf, cbBuf, 1, outfp);
 
-//	XFIFOWrite(context, pBuf, cbBuf);
+//	XFIFOWrite(context, (char *)pBuf, cbBuf);
 
 	return 1;
 }