Lexmark ImageQuick Option User Manual

ImageQuick Option

Technical Reference

November 2001

Edition: November 2001

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Lexmark, Lexmark with diamond design, and Optra are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.

Drag’N’Print and ImageQuick are trademarks of Lexmark International, Inc.

PCL

is a registered trademark of the Hewlett-Packard Company. PCL is Hewlett-Packard Company’s designation of a set of printer commands (language) and functions included in its printer products. This printer is intended to be compatible with the PCL language. This means the printer recognizes PCL commands used in various application programs, and that the printer emulates the functions corresponding to the commands.

PostScript

is a registered trademark of Adobe Systems Incorporated. PostScript X is Adobe Systems’ designation of a set of printer commands (language) and functions included in its software products. This printer is intended to be compatible with the PostScript X language. This means the printer recognizes PostScript X commands used in various application programs, and that the printer emulates the functions corresponding to the commands.

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Table of

contents

Step 1: Introducing the ImageQuick Option . . . . . . . . . . . . 5

Step 2: Supported image formats . . . . . . . . . . . . . . . . . . . . 6

TIFF support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Other supported formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

PostScript extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Step 3: Image printing system performance . . . . . . . . . . 16

Step 4: PBM tag descriptions . . . . . . . . . . . . . . . . . . . . . . 17

About PBM language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

PBM file transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

PBM tag descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

PBM file and folder access attributes . . . . . . . . . . . . . . . . . . .24

Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Printer Bookmarks Manager . . . . . . . . . . . . . . . . . . . . . . . . . .25

Step 5: Printer Bookmarks parameters . . . . . . . . . . . . . . 26

Folder capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Flash space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

iii

Step 6: PJL tag descriptions . . . . . . . . . . . . . . . . . . . . . . . 28

LPULLPRINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

LEXECNPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Step 7: Operator panel function . . . . . . . . . . . . . . . . . . . .29

Image Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Scaling settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

AutoFit Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Color image details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Introducing the ImageQuick Option

The ImageQuick™ option provides seamless integration of image printing capabilities into the Lexmark RIP architecture. With the option installed, your printer automatically prints files in addition to any standard Printer Control Language (PCL) emulation or PostScript emulation jobs.

Unlike some image file processing options, the ImageQuick option is not a translator; therefore, there is no impact to throughput of standard PCL or PostScript emulation jobs. It adds image format processing capabilities as fully integrated extensions to your printer. With the option installed, the printer automatically detects image formats in the incoming data stream and processes them.

The printer automatically detects and identifies images on a job boundary when a PJL UEL is received or when the printer is idle. For network ports, it also occurs when a connection is opened or closed. It is possible to send several identical format images without an intervening job boundary. The images print correctly and are treated as a single job for job cancel and tracking purposes. Mixing image types in the same manner is not supported and causes an error after the first image prints.

Disabling PostScript datastream sensing for a port also disables image detection. Setting the PostScript systemparam /Filtering to /None has the same effect.

Introducing the ImageQuick Option

Supported image formats

This section focuses on details not covered in the Overview section of the ImageQuick option User’s Guide.

TIFF support The ImageQuick option supports the baseline TIFF file format as

described in the TIFF Revision 6.0 specification, published by the Adobe Developers Association. The TIFF format allows for image compression by numerous methods.

The option supports the following compression formats:

• TIFF RGB full color images

• TIFF palette full color images

• TIFF tiled images

• TIFF grayscale images (monochrome)

• TIFF CCITT Group 4

• TIFF CCITT Group 3 2D

• TIFF CCITT Group 3 1D

• TIFF Type 2

• TIFF PackBits

• TIFF Uncompressed

• TIFF LZW

Note: The ImageQuick option

does not support JBIG compression or IPCL TIFF segments.

Supported image formats

CCITT Group 3 and 4 formats are often referred to as “fax compression” methods. They were designed to be used by fax machines for electronic data transmission. However, they are also popular methods for storing documents electronically, particularly Group 4. TIFF Type 2 is also called “Modified Huffman run-length encoding,” and is a variant of CCITT Group 3. TIFF PackBits is a simple form of run-length encoding, which stores data as sequences of uncompressed bytes or as repeat-counts.

The printer recognizes a file as a TIFF image if the file begins with 0x4d 0x4d 0x00 0x2a or 0x49 0x49 0x2a 0x00.

The following TIFF fields are accepted by the ImageQuick option. All other tags are ignored.

Tag name Required in Image File directory? Value restrictions

ImageWidth Yes None

ImageLength Yes None

Compression Yes 1 (Uncompressed)

2 (CCITT 1D) 3 (Group 3 Fax) 4 (Group 4 Fax) 5 (LZW) 32773 (PackBits)

PhotometricInterpretation Yes 0 (WhiteIsZero)

1 (BlackIsZero) 2 (RGB) 3 (RGB Palette) 5 (CMYK)

Xresolution Yes 0 is mapped to 96 dpi.

Yresolution Yes 0 is mapped to 96 dpi.

StripOffsets* Yes None

StripByteCounts* Yes None

RowsPerStrip* Yes None

TileWidth No None

TileLength No None

TileOffsets* No None

TileByteCounts* No None

BitsPerSample No Defaults to 1.

FillOrder No Defaults to 1.

SamplesPerPixel No Defaults to 1.

T4Options No Only bit 0 and bit 2 honored.

ResolutionUnit No Defaults to 2 (inches).

Predictor No Defaults to 1.

Supported image formats

Tag name Required in Image File directory? Value restrictions

Colormap Required for Palette image. None

ExtraSamples No None

PlanarConfiguration No Must be 1 (chunky) if

SamplesPerPixel > 1.

*If TileWidth and TileLength are present, then TileOffsets/

TileByteCounts must be present. Otherwise, StripOffsets/ StripByteCounts/RowsPerStrip must be present. The Orientation

field is ignored.

If ExtraSamples is nonzero, the extra samples are discarded for each pixel. Associated alpha handling is not supported and is ignored.

Other supported

formats

In addition to TIFF, the ImageQuick option supports these document and image formats:

• JPEG baseline

• JPEG progressive

• GIF87a

• GIF89a

• PNG

• BMP

• Monochrome PCX Compression

• DCX, which is based on monochrome PCX

• HTML 4.0 (except animated GIF files, DHTML, and Java

Script)

• PDF 1.3 for Adobe Acrobat 4

• PDF 1.2 for Adobe Acrobat 3

Supported image formats

The following rules are used to recognize file types.

JPEG The ImageQuick option supports direct printing of both color and

monochrome JPEG format images including both baseline and progressive encodings. It does not support lossless JPEG images.

The printer recognizes a file as a JPEG image if it has an HTTP Content-type of image/jpeg, or if the file begins with 0xff 0xd8.

GIF The ImageQuick option supports direct printing of both color and

monochrome GIF format images, including both GIF87a and GIF89a.

The printer recognizes a file as a GIF image if it has an HTTP Content-type of image/gif, or if the file begins with either GIF87a or GIF89a.

PNG The ImageQuick option supports direct printing of both color and

monochrome PNG format images.

The printer recognizes a file as a PNG image if it has an HTTP Content-type of image/png, or if the file begins with 0x89 0x50 0x4e 0x47 0x0d 0x0a 0x1a 0x0a.

BMP The ImageQuick option supports direct printing of both color and

monochrome Windows BMP format images including versions 2 (Win2x), 3 (Win3x and WinNT), and 4 (Win95). Version 1 is not supported.

The printer recognizes a file as a BMP image if it has an HTTP Content-type of image/bmp, or if the file begins with BM.

PCX The ImageQuick option supports direct printing of bitonal

monochrome PCX format images.

The printer recognizes a file as a PCX image if the file begins with 0x0a, followed by a value less than 0x06, but not equal to 0x01, followed by 0x01.

Supported image formats

DCX The ImageQuick option supports direct printing of bitonal

monochrome DCX format images.

The printer recognizes a file as a DCX image if the file begins with 0xb1 0x68 0xde 0x3a.

HTML The ImageQuick option supports numerous character set encodings

within the HTML emulator. These encodings are utilized by either of two methods.

1 The HTTP Response Header Field

The printer recognizes a file as an HTML image if it has an HTTP-Content type of text/html; charset=xxx.

Note: The HTTP Response

Field is not usually accessible for setting by the user.

2 The HTML Meta tag

The printer recognizes a file as an HTML image if it has the following tag:

In the given methods, xxx indicates the desired character set encoding:

• ISO 8859-1

• ISO 8859-2

• ISO 8859-5

• ISO 8859-7

• ISO 8859-9

• ISO 8859-10

• ISO 8859-15

• Windows 1250

• Windows 1251

• Windows 1252 (default)

• Windows 1253

• Windows 1254

• Windows 1257

Supported image formats

PostScript

extensions

Userparams and

systemparams

The following keys have been added to the userparams and systemparams dictionaries to let the user modify the Image Menu options from a PostScript job. The new keys, their possible values, and the corresponding Image Menu values are shown below.

Key Value Image Menu value

ImageAutoFit 0 Off

1On

ImageInvert 0 Off

1On

ImageScaling 0 Anchor Center

1 Fit Height/Width

2 Fit Height

3Fit Width

4 Not used

5 Anchor TopLeft

6Best Fit

ImageOrientation 0 Portrait

1 Landscape

2Reverse Portrait

3 Reverse Landscape

The Values in the table are integers.

When set using the setsystemparams operator, the values persist from job to job, like when they are set using the Image Menu.

When set using the setuserparams operator, the values only persist until reset or the end of the job. Changes to userparams are subject to Save and Restore. The default userparams at the beginning of a job are equal to the current systemparams values.

Supported image formats

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