Decode test with ink jet printers

Aim : Identify the minimum cell size of color c code, possible to decode from ink jet prints

«Used codes and decoding environment»

cell standard : 162×162mm
redundancy level : 3 levels (level 1 [10% restoration), level 2 (20% restoration), level 3 (30% restoration)]
cell size : 5 types (0.2×0.2ｍｍ, 0.25×0.25ｍｍ, 0.3×0.3ｍｍ, 0.35×0.35ｍｍ, 0.4×0.4ｍｍ)
decoding device : scanner [CANON SCAN LIDE 90] (resolution600dpi)
ink jet printer : Brother, Canon, Epson (total 22 devices) - printer selection : based on printers currently in the market.

Brand and type of printer, and printing paper

«Brother»

• Printer type : 4 types

DCP-350C / MFC-480CN / MFC-870CDN / MFC-880CDN

• Paper : 3 types)

• multipurpose paper
• ink jet paper
• photo glossy paper

«Canon»

• Printer type : 9 types

iP100 / iP2600 / iP3500 / iP4500 / MP470 / MP610 / MP970 / MX850 / MX7600

• Paper : 5 types

• multipurpose paper - white
• multipurpose paper for color
• high quality print paper
• satin glossy gold
• professional photo print paper
• * High quality print paper and professional photo paper was not supported for "MX7600," therefore testing was not available.

«Epson»

• Printer type : 10 types

PM-T990 / PM-T960 / PM-A940 / PM-A840 / PX-FA700 / PX-A740 / PX-A640 / PM-G860 / PX-V780 / PX-G930

• paper : 2 types

• super fine paper
• photo glossy paper

Table of test results for ink jet prints (ink-jet080830.pdf)36kb

«Conclusion»

• Brother

Glossy paper is most suited for all Brother printers.
In addition, the decoding accuracy from ink printers are significantly high.
他にもインクジェット紙の読み取り精度が高く, 特に普通紙では0.16�o(冗長レベル3)を読み取ることが可能。
セルサイズは普通紙で0.2mm(冗長レベル3), インクジェット紙, 光沢紙0.16mm(冗長レベル3)まで読み取ることが可能。

• Canon

If "glossy gold paper" was used and the code redundancy level is set to 2, the code can be decoded in 100% probability.
In addition, the code can be decoded from "satin," "professional photo," and "high quality print paper" if the redundancy level is set to 2 as well.
When using "multipurpose paper for color" and "multipurpose paper - white" the code is more decoded when created under redundancy level 2 or more and cell size 0.3 mm or more.

• Epson

If "super fine paper" and "photo glossy paper" are used, and the code redundancy level is set to 2, the can be decoded in a high probability.
Since "super fine paper" is not supported to [PX-G930], we recommend "photo glossy paper" for decode.
For small sized codes, decoding probability is high when the code is set to redundancy level 3 and cell size 0.25 mm.

*Notation
The results do not compare the printing performance of each printer brands. The results are exclusively based on the print testings of Color C Code. Please note that the results do not provide any guaranteed information of the attributes of Color C Code. Colour Code Technologies has no responsibility for any accidents that ensued from these results.