Toner save and paper type controls from CUPS

Canon-LBP2900.ppd

@@ -293,11 +293,30 @@
 *DefaultColorModel: Gray
 *ColorModel Gray/Grayscale: "<</cupsColorSpace 3/cupsColorOrder 0/cupsCompression 2>>setpagedevice"
 *CloseUI: *ColorModel
+*OpenUI *captMediaWeight/Media Type B (Experimental): PickOne
+*OrderDependency: 11 AnySetup *captMediaWeight
+*DefaultcaptMediaWeight: pt2-1
+*captMediaWeight pt2-0/0: "<</MediaWeight 0>>setpagedevice"
+*captMediaWeight pt2-1/Default: "<</MediaWeight 1>>setpagedevice"
+*captMediaWeight pt2-2/2: "<</MediaWeight 2>>setpagedevice"
+*CloseUI: *captMediaWeight
+*OpenUI *captTonerSave/Toner Save: Boolean
+*OrderDependency: 10 AnySetup *captTonerSave
+*DefaultcaptTonerSave: False
+*captTonerSave False/Disabled: "<</cupsCompression 0>>setpagedevice"
+*captTonerSave True/Enabled: "<</cupsCompression 1>>setpagedevice"
+*CloseUI: *captTonerSave
 *OpenUI *Resolution/Resolution: PickOne
 *OrderDependency: 10 AnySetup *Resolution
 *DefaultResolution: 600dpi
 *Resolution 600dpi/600 DPI: "<</HWResolution[600 600]/cupsBitsPerColor 1/cupsRowCount 70/cupsRowFeed 592/cupsRowStep 0/cupsColorSpace 3>>setpagedevice"
 *CloseUI: *Resolution
+*OpenUI *MediaType/Media Type: PickOne
+*OrderDependency: 10 AnySetup *MediaType
+*DefaultMediaType: Plain
+*MediaType Plain/Plain Paper: "<</MediaType(Plain)/cupsMediaType 0>>setpagedevice"
+*MediaType Thick/Thick Paper: "<</MediaType(Thick)/cupsMediaType 1>>setpagedevice"
+*CloseUI: *MediaType
 *DefaultFont: Courier
 *Font AvantGarde-Book: Standard "(1.05)" Standard ROM
 *Font AvantGarde-BookOblique: Standard "(1.05)" Standard ROM
@@ -334,4 +353,4 @@
 *Font Times-Roman: Standard "(1.05)" Standard ROM
 *Font ZapfChancery-MediumItalic: Standard "(1.05)" Standard ROM
 *Font ZapfDingbats: Special "(001.005)" Special ROM
-*% End of CNLB2K9.ppd, 20521 bytes.
+*% End of CNLB2K9.ppd, 21444 bytes.

Canon-LBP3000.ppd

@@ -293,6 +293,19 @@
 *DefaultColorModel: Gray
 *ColorModel Gray/Grayscale: "<</cupsColorSpace 3/cupsColorOrder 0/cupsCompression 2>>setpagedevice"
 *CloseUI: *ColorModel
+*OpenUI *captMediaWeight/Media Type B (Experimental): PickOne
+*OrderDependency: 11 AnySetup *captMediaWeight
+*DefaultcaptMediaWeight: pt2-1
+*captMediaWeight pt2-0/0: "<</MediaWeight 0>>setpagedevice"
+*captMediaWeight pt2-1/Default: "<</MediaWeight 1>>setpagedevice"
+*captMediaWeight pt2-2/2: "<</MediaWeight 2>>setpagedevice"
+*CloseUI: *captMediaWeight
+*OpenUI *captTonerSave/Toner Save: Boolean
+*OrderDependency: 10 AnySetup *captTonerSave
+*DefaultcaptTonerSave: False
+*captTonerSave False/Disabled: "<</cupsCompression 0>>setpagedevice"
+*captTonerSave True/Enabled: "<</cupsCompression 1>>setpagedevice"
+*CloseUI: *captTonerSave
 *OpenUI *Resolution/Resolution: PickOne
 *OrderDependency: 10 AnySetup *Resolution
 *DefaultResolution: 600dpi
@@ -301,7 +314,8 @@
 *OpenUI *MediaType/Media Type: PickOne
 *OrderDependency: 10 AnySetup *MediaType
 *DefaultMediaType: Plain
-*MediaType Plain/Plain Paper: "<</MediaType(Plain)/cupsMediaType 1>>setpagedevice"
+*MediaType Plain/Plain Paper: "<</MediaType(Plain)/cupsMediaType 0>>setpagedevice"
+*MediaType Thick/Thick Paper: "<</MediaType(Thick)/cupsMediaType 1>>setpagedevice"
 *CloseUI: *MediaType
 *DefaultFont: Courier
 *Font AvantGarde-Book: Standard "(1.05)" Standard ROM
@@ -339,4 +353,4 @@
 *Font Times-Roman: Standard "(1.05)" Standard ROM
 *Font ZapfChancery-MediumItalic: Standard "(1.05)" Standard ROM
 *Font ZapfDingbats: Special "(001.005)" Special ROM
-*% End of CNLB3K.ppd, 20690 bytes.
+*% End of CNLB3K.ppd, 21404 bytes.

configure.ac

@@ -1,5 +1,5 @@
 AC_PREREQ([2.69])
-AC_INIT([captdriver], [0.1.2])
+AC_INIT([captdriver], [0.1.3])
 
 AC_CONFIG_SRCDIR([src/std.h])
 

src/canon-lbp.drv

@@ -16,7 +16,7 @@ Copyright "(C)2020 Moses Chong"
 ColorModel "Gray/Grayscale" k chunky 2 
 Filter application/vnd.cups-raster 1 rastertocapt 
 *Manufacturer "Canon Inc"
-Version 0.1.2 
+Version 0.1.3 
 {
 	Font *
 
@@ -102,8 +102,32 @@ Version 0.1.2
 	MediaSize Statement
 	// End Less Common Sizes
 
+	// Paper Type B Options
+	/* 
+	   This option is wired directly to the pt2 register in the
+	   page prologue (see prn_lbp2900.c). Its exact purpose is not
+	   known, but it appears to be an adjustment to cater the printer
+	   for different paper weights.
+	   The proprietary drivers offers a 'Plain Paper L' and 'Heavy Paper H'
+	   option. The LBP 3000 manual describes Heavy Paper H as an option
+	   to 'get improved fixing properties' for thick paper and 
+	   Plain Paper L as an option reduce curling on plain paper.
+	   And then there's the Transparency option for clear plastic film...
+	 */
+	Option "captMediaWeight/Media Type B (Experimental)" PickOne AnySetup 11
+		Choice "pt2-0/0" "<</MediaWeight 0>>setpagedevice"
+		*Choice "pt2-1/Default" "<</MediaWeight 1>>setpagedevice"
+		Choice "pt2-2/2" "<</MediaWeight 2>>setpagedevice"
+
+	// Toner Save Option
+	Option "captTonerSave/Toner Save" Boolean AnySetup 10 
+		*Choice False/Disabled "<</cupsCompression 0>>setpagedevice"
+		Choice True/Enabled "<</cupsCompression 1>>setpagedevice"
+
 	*Resolution k 1 70 592 0 "600dpi/600 DPI"
 	MaxSize 215.9mm 355.6mm		// US Legal
+	MediaType 0 "Plain/Plain Paper"
+	MediaType 1 "Thick/Thick Paper"
 	VariablePaperSize yes
 	{
 		// nearly matched to Alexey Galakhov's original 2011 specs
@@ -119,7 +143,6 @@ Version 0.1.2
 		FileName "Canon-LBP3000.ppd"
 		HWmargins 5mm 5mm 5mm 5mm 
 		MinSize 75mm 105mm
-		MediaType 1 "Plain/Plain Paper"
 		PCFileName "CNLB3K.ppd"
 	}
 }

src/paper.c

@@ -18,13 +18,16 @@
  */
 
 #include "paper.h"
-
 #include <cups/raster.h>
 
 void page_set_dims(struct page_dims_s *dims, const struct cups_page_header2_s *header)
 {
+	dims->media_type_a = header->cupsMediaType;
+	dims->media_type_b = header->MediaWeight;
 	dims->paper_width  = header->PageSize[0] * header->HWResolution[0] / 72;
 	dims->paper_height = header->PageSize[1] * header->HWResolution[1] / 72;
+	//using cupsCompression to reduce ink darkness, like Zebra printers
+	dims->toner_save = header->cupsCompression; 
 	dims->margin_height = header->Margins[0];
 	dims->margin_width = header->Margins[1];
 }

src/paper.h

@@ -25,8 +25,11 @@ struct cups_page_header2_s;
 
 struct page_dims_s {
 	/* set by CUPS */
+	unsigned media_type_a;
+	unsigned media_type_b;
 	unsigned paper_width;
 	unsigned paper_height;
+	unsigned toner_save;
 	unsigned margin_height;
 	unsigned margin_width;
 	/* set by printer ops */

src/prn_lbp2900.c

@@ -157,9 +157,11 @@ static bool lbp2900_page_prologue(struct printer_state_s *state, const struct pa
 	size_t s;
 	uint8_t buf[16];
 
-	uint8_t pt1 = 0x01;
-	uint8_t save = 0x00;
-	uint8_t pt2 = 0x01;
+	uint8_t pt1 = dims->media_type_a;
+	uint8_t save = dims->toner_save;
+	uint8_t pt2 = dims->media_type_b; // Please see .drv file
+
+	fprintf(stderr, "DEBUG: CAPT: Media type: pt1=%u, pt2=%u\n", pt1, pt2);
 
 	uint8_t pageparms[] = {
 		/* Bytes 0-21 (0x00 to 0x15) */