GB/T 34970-2017 in English
VALIDTest method for prints quality of colour laser printers
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$146.00
《GB/T 34970-2017彩色激光打印机印品质量测试方法》由TC28（全国信息技术标准化技术委员会）归口，TC28SC28（全国信息技术标准化技术委员会办公机器、外围设备和耗材分会）执行，主管部门为国家标准化管理委员会。
Introduction
GB/T 34970—2017 Standard Overview
| Standard Dimensions | Specific Requirements | Technical Indicators |
|---|---|---|
| Test Environment Conditions | Temperature, Humidity, Illuminance | $18^\circ C \sim 28^\circ C$, 40% $\sim$ 60%, 500 lx $\sim$ 1000 lx |
| Test Instruments | Reflection Densitometer, Spectrophotometer, Whiteness Meter, etc. | Density repeatability $\leq$ 0.01, color difference repeatability $\leq$ 0.1 |
| Test items | Color error, color density, fixing fastness, etc. | Covering A3 and A4 format printers, including 19 detailed indicators |
Standard formulation background and technology evolution analysis
With the rapid development of color laser printing technology, the market's requirements for print quality are increasing. The GB/T 34970-2017 standard fills the gap in the quality test method of domestic color laser printers and provides a unified technical specification for the industry.
Explanation of professional terms and practical application
- Out of color registration: refers to the positional offset between the colors of a color image. In actual printing, it can be optimized by adjusting the printer calibration parameters.
- Fixing level: an important indicator to measure the degree of fixation of printed products. During the test, a friction tester is used to simulate the daily friction environment to ensure the durability of the printed output.
Implementation suggestions
To ensure the effective implementation of the standard:
- Enterprises should be equipped with testing instruments that meet the requirements and calibrate them regularly.
- Operators need to undergo professional training and master various test methods.
- It is recommended to establish a quality traceability system to record test data and results.
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