GB/T 34969-2017Test chart for color laser printers (English PDF)

2.1 Grayscale blackness

Image density imagedensity

The reflected optical density of a single-color area is expressed by the formula (1).

s=lg (1)

In the formula.

s---gradation or image density;

beta---light reflectance.

Note. When the gradation is 1.0, the reflectance is 10%; when the gradation is 2.0, the reflectance is 1.0%.

2.2 Bottom gray background

The toner adhered to the background without the image on the background of the standard observation distance visible to the naked eye. Use unprinted parts and print no image text

The difference in the partial light reflectance is expressed.

2.3 Ghost ghosting

The phenomenon of residual images in the previous cycle is periodically displayed on the printed matter.

[GB/T 13963-2012, definition 6.14]

3.1 Comprehensive version

3.1.1 Drawing

The A4 comprehensive version of the pattern is shown in Figure 1, and the A3 comprehensive version is shown in Figure 2.

Figure 1 A4 comprehensive version of the pattern

Figure 2 A3 comprehensive version of the pattern

3.1.2 Structure diagram

The structure of A3 comprehensive version is shown in Figure 3. The structure of A4 comprehensive version (slightly) and A3 differ in that there is one single person and the middle, and the ray.

The position of the zone, the line pair zone, the color zone and the 7 color blocks are different (see Figure 1 and Figure 2 for a comprehensive version of the pattern).

Description.

A---baseline area;

B---Color area;

C---solid round area;

D---line pair area;

E---header word area;

G---single person;

H---three people like;

I---ray area;

J---7 color block area;

K---gray color block area;

L---text area;

M---Copyright area.

Figure 3 A3 comprehensive version of the structure

3.1.3 Coordinates and dimensions of structural elements

3.1.3.1

The coordinates and dimensions of the structural elements of the A4 comprehensive version are shown in Table 1.

Table 1 The coordinates and dimensions of each structural element of the A4 comprehensive version are in pounds [pt1)]

1) 1pt=1/72in=25.4/72mm=0.353mm.

Structure element name starting point abscissa starting point ordinate height and width note

Baseline outer border 18 (upper left corner) 18 (upper left corner) 806 560 Border spacing 4, line width 0.215

Nesting area

Upper left corner 34 34

Middle right corner 379 398

44(K), 36(C)44(K), 36(C)

Symmetrical area in the four corners, central copy

Bay upper right corner; line spacing 4, line width 0.215 solid

Round area

Upper left C color

Lower left C color

Middle left C color

57 (center)

184 (centre)

57 (center)

697 (center)

418 (center)

Adjacent circle center spacing 28; relative frame left

Right symmetry; bottom center and bottom border spacing

4 more than the center of the top and the top border

Line pair

Upper left C color 80 (right vertical line) 75 (lower line) 12 12

Left middle C color 229 (right vertical line) 424 (lower line end) 12 12

Line to vertical line abscissa. and resolution

The nearest vertical line of the word is the reference; the vertical line reference

Line spacing, from 75 and 100 corresponding datum

Line spacing 24 is decremented by 1; line to horizontal line

The ordinate. the bottom horizontal line and the vertical line

The bottom end is flush and is based on the horizontal knot;

Line pairs at the four corners. vertical to the nearest circle

Centering; left center line pair spacing and square line pair

Semicircular

Line area C

Color 94 (center) 440.4 (center) 52 104

Radius radius 52, line width 0.06, angle 1 °;

Ray semicircle left and right ends and image left

Aligned to the right, half-center spacing of the same column 66

7 colors

Block area

Red upper left

Corner 514 156 40 40

RGB CMYK7 color block along the vertical

Uniform, longitudinal height 362

Three people like the upper left corner 42 156 230.4 460.8 pixels. 1920 × 960

Grayscale

Block area

Upper left corner

C color

42 522 28 32×16

Horizontal alignment, 5 rows and 2 spacing; upper 4

Row vector mode, bottom row bitmap mode

Text area

Upper left corner C

Color background

226 738.365 12 144

3 groups per line, 5 words per group, font from left

To the right is the Song, the Song, the corpus, the black body

And the Song Dynasty; the font size is No. 5, Xiao Wu and

Sixth word; 8 lines of Chinese characters, etc.;

4-line word and background horizontal vertical alignment

Title word - - - - -

Horizontal alignment, relatively close to the solid circle vertical

Confrontation; Xiao No. 2 Song

Copyright word - - - - -

Horizontal alignment, and the bottom line of the color zone

End alignment, No.5 Song

Note 1. The top left corner of all pages is the coordinate origin, and the horizontal to middle finger in the table is centered relative to the left and right baselines of the frame.

Note 2. This standard test version is based on the commonly used pt of the printer. The 210mm of A4 is 595.276pt, and the center 105mm is 297.638pt, which are not integers.

3.1.3.2

The coordinates and dimensions of the structural elements of the A3 comprehensive version are shown in Table 2.

Table 2 The coordinates and dimensions of each structural element of the A3 comprehensive version are in pounds (pt)

Structure element name starting point abscissa starting point ordinate height and width note

Baseline outer border 18 (upper left corner) 18 (upper left corner) 1154 806 Border spacing 4, line width 0.215

Nesting area

Upper left corner 34 34

Middle right corner 534 580

44(K), 36(C)44(K), 36(C)

Symmetrical area in the four corners, central copy

Bay upper left corner; line spacing 4, line width 0.215 solid

Round area

Upper left C color 69 (center) 71 (center)

Center C color 321 (center) 598 (center) a circle at the four corners (regardless of color)

Isometric for the inner frame, adjacent to the center of the circle 32

Line pair

Upper left C color 102 (right vertical line) 77 (lower line) 12 12

Center left C color 354 (right vertical line) 604 (lower line) 12 12

Line to vertical line abscissa. and resolution

The nearest vertical line of the word is the reference; the vertical line reference

Line spacing, from 75 and 100 corresponding datum

Line spacing 32 is decremented by 1; line to horizontal line

The ordinate. the bottom horizontal line and the vertical line

The bottom end is flush and is based on the horizontal knot;

Line pairs at the four corners. vertical to the nearest circle

Centering; the center line pair spacing is the same as the square line pair

Semicircular

Line area

C color 113 (center) 630 (center) 52 104

Radius radius 52, line width 0.06, angle 1 °;

Uniform distribution on both sides of the line

7 colors

Block area

Red left

Upper corner

60 (RGB )

50 (CMYK)

60 (RGB )

50 (CMYK)

RGB color block, CMYK color block online pair

Uniformly distributed on both sides

Single person like the upper left corner 61.200 368.64 253.44 pixels. 1056×1536

Three people like the upper left corner 320.2.200 368.64 460.8 pixels. 1920 × 1536

Grayscale

Block area

Upper left corner

C color

61 720 45 45×16

Horizontal alignment, 5 rows and 5 spaces; top 4

Row vector mode, bottom row bitmap mode

Text area

Upper left corner C

Background 349 1071.365 13.75 144

3 groups per line, 5 words per group, font from left

To the right is the Song, the Song, the corpus, the black body

And the Song Dynasty; the font size is No. 5, Xiao Wu and

Sixth word; 8 lines of Chinese characters, etc.;

4-line word and background horizontal vertical alignment

Title word - - - - -

Horizontal alignment, relatively close to the solid circle vertical

Confrontation; Xiao No. 1 Song

Copyright word - - - - -

Horizontal alignment, and the bottom line of the color zone

End alignment, No.5 Song

Note 1. The top left corner of all pages is the coordinate origin, and the horizontal to middle finger in the table is centered relative to the left and right baselines of the frame.

Note 2. This standard test version uses the pt commonly used in printers. The 420mm of A3 is 1195.051pt, and the center 210mm is 595.276pt.

Integer.

3.1.4 Description of structural elements

3.1.4.1 Baseline frame

The reference frame is the outermost C, M, Y and K color borders of the integrated version, with equal spacing.

Note. The baseline box is used to test the size of the baseline itself and other pixels and their relative position dimensions.

3.1.4.2 Nesting area

The color zone pattern is shown in Figure 4. There are 5 zones, which are located in the 4 corners and center of the comprehensive version. Set color area K color line single end and C, M respectively

And Y color lines are connected.

Note. The color zone is used to test the color registration error of C, M, Y and K colors.

Figure 4 Schematic diagram of the color zone

3.1.4.3 Solid round area

The solid circle pattern is shown in Figure 5. It consists of solid circles of C, M, Y and K colors. There are 5 groups in total, which are located in the 5 corners of the comprehensive version.

Figure 5 Solid circle pattern

Note. CMYK patches in solid circles and integrated 7-color patches are used to test image density and color density uniformity.

3.1.4.4 Line pair area

The line pair pattern is shown in Figure 6. There are 4 groups in total. Each group consists of C, M, Y and K color line pairs, which are located in the 4 corners and center of the comprehensive version. Figure

The upper numbers 75, 100, 150,.200, 300, and 400 (small sixth song) indicate the number of lines per 25.4 mm.

Figure 6 line pair pattern

Note. Line pairs are used to test the resolution of the printer horizontally and vertically.

3.1.4.5 m word line

The "meter" word line pattern is shown in Figure 7. The four sets of "meter" word lines with line widths of 0.085mm, 0.063mm, 0.042mm, and 0.021mm are respectively.

Composition, located below the comprehensive title, centered on the left and right. The numbers 85, 63, 42 and 21 below the "meter" line are the "meter" word lines respectively.

The thin line number; 300, 400, 600, and 1200 in parentheses are the printer resolutions for these thin lines, respectively, in units of points per 25.4 mm.

The numbers in the A4 format are the Xiao No. 6 Song, and the numbers in the A3 format are the Xiao No. 5 Song.

Figure 7 Schematic diagram of the word line

Note. The “M” word line is used to test the continuous, uninterrupted, clear, thin line on the printed print and the resolution of the printer resolution.

3.1.4.6 Semicircular ray zone

The semicircular ray pattern is shown in Fig. 8. It consists of C, M, Y and K ray and red semicircle. There are 4 groups in total, which are located in the upper part of the comprehensive version. Each group

181 rays, the angle between the line and the line is 1°, the line width is 0.06pt, corresponding to 1200 points per 25.4mm; the ray center blank circle and the ray direction

The radius of the outer four red circles corresponds to the (800, 600, 400, 300,.200) points, and the line width of each 25.4 mm is equal.

It is the sixth Song.

Figure 8 Semicircular ray pattern

Note. Semi-circular rays are used as a special pair to test the resolution in all directions.

3.1.4.7 Color block area

The R, G, B, C, M, Y, and K color block patterns are shown in Figure 9.

Figure 9 color block pattern

Note. Color blocks are used to visually check the reproducibility of common colors; the CMYK color blocks can also be used together with solid circles to test image density and uniform color density.

Sex and so on.

3.1.4.8 Photo area

The picture pattern is shown in Figure 10. A3 comprehensive version of a total of 2, the right picture size is the same as the original picture, 1920 pixels wide, 1536 pixels high; left

The side image is taken from the upper middle portion of the original image, and is 1056 pixels wide and 1536 pixels high. A4 comprehensive version of a photo, taken from the original picture (Figure

The upper part of the right picture in 10) is 1920 pixels wide and 960 pixels high.

Figure 10 photo pattern

Note 1. The ISO 300 in the upper right corner of the picture refers to the original image every 25.4mm300 pixels; the photo of this standard is also designed for every 25.4mm300 pixels.

Note 2. The photo is mainly used to visually check whether the skin color is distorted and the contrast of the skin color. It can also be used to visually check the background gray balance of the left image, the solution of the hair and the sweater.

The image of the force and the right blue to purple dark tone.

The 16-level gray patch pattern is shown in Figure 11, including C, M, Y, and K patches of equal-increasing coverage. Coverage number under the color block. A4

The format is No. 6 Song, and the A3 format is Xiao No. 5 Song.

Figure 11 16-level gray-scale color block pattern

Note 1. 16-level gray patches are used to test the change and resolution of gray scale between different gray patches.

Note 2. 16-level gray patches can also be used to test the difference between the image density of different coverage patches and the theoretical value.

3.1.4.10 text area

The text area is shown in Figure 12. The first five words in each line are the fifth word, the middle five words are the small five number, and the right five words are the sixth number (text)

Above the district is the “No. 5 word, small five number, six characters” logo. From left to right, the fonts are Song, Imitation, Scorpion, Black and Song.

The color of the upper four lines and the background color of the lower four lines are C, M, Y, and K, respectively.

Figure 12 text area pattern

Note. The text area is used to test the sharpness of normal glyphs and anti-white glyphs.

3.2 full color version

3.2.1 Drawing

The full color version of the C, M, Y, and K colors is shown in Figure 13.

Figure 13 full color version of the pattern

3.2.2 Coordinates and dimensions of structural elements

The coordinates and dimensions of the structural elements of the C, M, Y, and K color full-color plates are shown in Table 3.

Table 3 The coordinates and dimensions of the full color version of the structural elements are in points (pt)

Structural element name horizontal coordinate ordinate height and width

Full color block 18 (upper left corner) 78 (upper left corner) 746 (A4)/1094 (A3) 540 (A4)/806 (A3)

Headline

Copyright word

Horizontal alignment

39.89 (center) Xiao No

1 Song

Relatively comprehensive version of the copyright word, up 739 fifth Song

3.2.3 Description of structural elements

The color of the full color version is C, M, Y, and K colors.

Note. The full-color version of the color block is used to test printer defects such as noise points and lines, and can also be used to test uniformity, particles, spots, and the like.

3.3 bottom ash and fixing fastness version

3.3.1 Drawing

The bottom ash and fixing fastness patterns are shown in Figure 14.

Figure 14 bottom ash and fixing firmness pattern

3.3.2 Coordinates and dimensions of structural elements

The coordinates and dimensions of the bottom ash and fixing fastness structural elements are shown in Table 4.

Table 4 The coordinates and dimensions of each structural element of the bottom ash and fixing fastness are in points (pt)

Structural element name horizontal coordinate ordinate height and width note

Wireframe C color 18 (upper left corner) 78 (upper border) 140 140

The line width is 0.215, and the square frame is symmetrically distributed.

Left, right, and bottom margins, centerline frame page

Centering

Solid circle C color 52 (A4)/120 (A3) 421 (A4)/595 (A3) 22 22 Center coordinates; center-to-center spacing 80 (A4)/124 (A3)

Headline

Copyright word

Horizontal alignment

39.89 (center) Xiao No

2 Song

Relatively comprehensive copyright word, on

Shift 739

No.5 Song

3.3.3 Description of structural elements

3.3.3.1

The C, M, Y, K, and G color line boxes are located at five positions on the top left, top right, bottom left, bottom right, and center of the page.

3.3.3.2

C, M, Y and K solid circles are on both sides of the center frame, and the two sides are symmetrical.

Note 1. The area inside the color frame is used to test the change in image density before and after printing.

Note 2. The solid circle is used to test the fixing firmness.

3.4 ghost version

3.4.1 Drawing

The C, M, Y, and K color ghost patterns are shown in Figure 15.

Figure 15 ghost version of the pattern

3.4.2 Coordinates and dimensions of structural elements

3.4.2.1

The coordinates and dimensions of the A4 ghost version of the structural elements are shown in Table 5.

Table 5 The coordinates and dimensions of each structural element of the A4 ghost version are points (pt)

Structural element name horizontal coordinate ordinate height and width note

Solid round frame (left) 18 (top left corner) 78 (top left corner) 67.5 70

Solid circle (left) 53 (center) 111.75 (center) - - Center diameter 30, at the center of the solid round frame

Grayscale (left) 18 (upper left corner) 145.5 (upper left corner) 650 70 8 grayscale contours

Grayscale coverage box (left) 18 (upper left corner) 795.5 (upper left corner) 28.5 70 8 frames equal width

Grayscale specifier (left) centered in the box - - small fourth song

Headline

Copyright word

Horizontal alignment

39.89 (center) Xiao No

1 Song

Relatively comprehensive version of the copyright word, up 739 fifth Song 3.4.2.2 The coordinates and dimensions of the A3 ghost version of the structural elements are shown in Table 6.

Table 6 The coordinates and dimensions of each structural element of the A3 ghost version are points (pt)

Structural element name horizontal coordinate ordinate height and width note

Solid round frame (left) 18 (top left corner) 78 (top left corner) 94 100.75

Solid circle (left) 53 (center) 111.75 (center) - - Center diameter 40, at the center of the solid round frame

Grayscale (left) 18 (upper left corner) 145.5 (upper left corner) 960 100.75 Grade 8 grayscale contour

Grayscale coverage box (left) 18 (upper left corner) 795.5 (upper left corner) 40 100.75 8 frames equal width

Grayscale specifier (left) centered in the box - - small fourth song

Headline

Copyright word

Horizontal alignment

39.89 (center) Xiao No. 1 Song

Relatively comprehensive version of the copyright word, up 739 fifth Song

3.4.3 Description of structural elements

The coverage of the 8-level grayscale in the ghost image area is 0%, 10%, 20%, 40%, 60%, 80%, 90%, 100%, respectively.

Note. The ghost area is used to test whether the print process produces positive ghosts or negative ghosts.

references

[1] GB/T 13963-2012 Electrostatic copying (including multi-function) equipment terminology

[2] ISO /IEC 12640-1.1997 Graphictechnology-Prepress digitaldataexchange-Part 1.

CMYKstandardcolourimagedata(CMYK/SCID) […]