1、INCITS/ISO/IEC 19752:20042008 (ISO/IEC 19752:2004, IDT) Information technology Method for the determinationof toner cartridge yieldfor monochromatic electrophotographicprinters and multi-function devicesthat may contain printer componentsINCITS/ISO/IEC 19752:20042008(ISO/IEC 19752:2004, IDT)INCITS/I
2、SO/IEC 19752:20042008 ii ITIC 2008 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the comp
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5、 Central Secretariat at the address given below. Adopted by INCITS (InterNational Committee for Information Technology Standards) as an American National Standard. Date of ANSI Approval: 6/18/2008 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyr
6、ight 2008 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyright claims of International Standardization Organization (ISO), International Electrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technol
7、ogy Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW, Washington, DC 20005.
8、 Printed in the United States of America INCITS/ISO/IEC 19752:20042008 ITIC 2008 All rights reserved iii Contents Page Foreword iv Introduction .v 1 Scope 1 2 Terms and definitions 1 3 Test Parameters and Conditions .2 3.1 Set-up 2 3.2 Sample Size 3 3.3 Print Mode.3 3.4 Print Environment 3 3.5 Paper
9、 .4 3.6 Maintenance .4 3.7 Print File 4 4 Test Methodology .5 4.1 Testing Procedure 5 4.2 Procedure for handling a defective cartridge or printer .5 4.2.1 Defective Cartridge .5 4.2.2 Defective Printer .5 5 Determination of the declared yield value and declaration 6 5.1 Determination of the declared
10、 yield value .6 5.2 Test data reporting .6 5.3 Declaration of the yield 6 Annex A (informative) Examples of Fade .7 Annex B (informative) Process Flowchart and Examples8 Annex C (normative) Standard test page . 11 Annex D (informative) Sample reporting form . 16 Annex E (informative) Comparison of Y
11、ield for Two Printing Systems 18 INCITS/ISO/IEC 19752:20042008 iv ITIC 2008 All rights reserved Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that ar
12、e members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other internation
13、al organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the
14、 ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at lea
15、st 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 19752 was prepared by Joint Technical
16、Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 28, Office equipment. This corrected version of ISO/IEC 19752:2004 incorporates the corrected title, which has been changed from Information technology Method for the determination of toner cartridge yield for monochromatic electrophot
17、ographic printers and multi-function devices that may contain printer components to Information technology Method for the determination of toner cartridge yield for monochromatic electrophotographic printers and multi-function devices that contain printer components. INCITS/ISO/IEC 19752:20042008 IT
18、IC 2008 All rights reserved v Introduction The purpose of this International Standard is to provide a process for determining the page yield for toner cartridges for monochromatic printers using a standard office consumer type test page. This standard prescribes the following: The test method that m
19、anufacturers should use to determine cartridge yield. The method for determination of declared yield values from the test results. The appropriate method of describing the yield of cartridges in documentation supplied to the consumer by the manufacturer. The end of life is judged with either of two
20、phenomena - image fade caused by toner depletion of the cartridge in the printing system or “automatic printing stop“ by the Toner Out detection function. AMERICAN NATIONAL STANDARD INCITS/ISO/IEC 19752:20042008 ITIC 2008 All rights reserved 1 Information technology Method for the determination of t
21、oner cartridge yield for monochromatic electrophotographic printers and multi-function devices that contain printer components 1 Scope The scope of this International Standard is limited to evaluation of toner cartridge yield for toner containing cartridges (i.e. all-in-one toner cartridges and tone
22、r cartridges without a photoconductor) for monochrome electrophotographic printers. This International Standard could also be applied to the printer component of any multifunctional device that has a digital input-printing path (i.e. multi-function devices that contain printer components). This Inte
23、rnational Standard is only intended for the measurement of toner cartridge yield. No other claims can be made from this testing regarding quality, reliability, etc. NOTE Application of this International Standard for yield measurement of toner replenishment systems (i.e. toner cartridge- and bottle
24、type systems where the toner reservoir is internal to the printing system and not user-replaceable) requires some procedural modifications specifically noted herein. This International Standard is intended for equipment used in the office space and does not apply to production volume or large format
25、 printing machines where the major cost of ownership is not caused by the consumable yield measured in this International Standard. 2 Terms and definitions For the purposes of ISO 19752, the following terms and definitions apply. 2.1 Fade a phenomenon whereby a noticeable reduction in density unifor
26、mity across the page occurs NOTE In this test, fade is defined as a noticeably lighter, 3 mm or greater, gap located in the text or boxes around the periphery of the test page. The determination of the change in lightness is to be made referenced to the 100th page printed for each cartridge in testi
27、ng. For examples of fade, please consult Annex A. 2.2 Shake Procedure in the case that the cartridge users manual instructs cartridge shaking and its method, shaking the cartridge according to the procedures specified NOTE If a shake procedure is used in testing it will be noted in the report. 2.3 T
28、oner Low a signal generated by the printer when it has been detected that the amount of toner is such that a toner change will be required soon NOTE It does not indicate that the system is out of toner. INCITS/ISO/IEC 19752:20042008 2 ITIC 2008 All rights reserved 2.4 Toner Out a signal generated by
29、 the printer when the toner in the system is depleted and the printer is incapable of reliable printing without user intervention NOTE For the purpose of this test, the toner out signal will only be used if it causes the printer to stop printing and requires toner replacement to continue printing. 2
30、.5 End of Life when the printer declares Toner Out NOTE 1 The general intent of this definition is to allow 2 shake procedures near end of life and to declare end of life at the first fade after the 2 shake procedures. Nominally the shake procedures are to be executed at print fade. However, if the
31、printer is equipped with a Toner Low device, then the first, second or both shake procedures can be executed at Toner Low instead of at fade as a convenience for the tester. If the users guide does not specify a shake procedure then the shake procedures are not done and end of life occurs at the fir
32、st fade. NOTE 2 When fade occurs before Toner Out and no shake procedure is specified, then end of life is declared at the fade. If a shake procedure is specified for a printer with a Toner Out device, then up to 2 shake procedures can be executed as described in the paragraph above when fade occurs
33、 before Toner Out. In this case, if fade occurs after 2 shake procedures but before Toner Out, then end of life is declared at the third fade. If Toner Out occurs at any time during testing, the cartridge is considered to be at end of life. NOTE 3 When applied to replenishment systems (bulk toner re
34、placement or multi-part toner systems), the intent of this definition is to declare a quasi-end of cartridge life at a regular predetermined point. If the printer is equipped with a Toner Low or Toner Out signal, these can be used as the point of quasi-end of life. In either case, the end of life co
35、ndition chosen must be noted in the test report. NOTE 4 When shake procedures have been performed during the test, the test report will note for both the first and second shake procedures whether they were done at Toner Low or at fade. Any faded pages printed during the test are to be excluded from
36、the cartridge page count. NOTE 5 Application of this definition may be clarified by reference to a flow chart and examples found in Annex B. 2.6 Individual Page Yield the number of standard page file pages printed between cartridge installation and end of life (as defined in Section 3.5) NOTE For re
37、plenishment systems, the individual page yield is determined by counting the number of standard page file pages printed between prescribed quasi-end of life conditions (defined in Section 3.5). 2.7 Declared Page Yield (see Clause 6) 3 Test Parameters and Conditions 3.1 Set-up Place the printer on a
38、horizontal surface and set-up the printer according to the installation guide provided in the printer users manual. Use the most recent printer driver available from the manufacturer. The driver version will be specified on the test report. Cartridge installation shall be completed following the ins
39、tructions in the cartridge installation guide. If there is a contradiction between the printer and cartridge manuals for the cartridge installation, the cartridge manual will take precedence except if changes are recommended for printer or driver settings. If the cartridge used in testing is a toner
40、 replenishment or toner bottle type, then one complete toner cartridge will be used in each printer before the start of the test. The pages printed to deplete this priming cartridge do INCITS/ISO/IEC 19752:20042008 ITIC 2008 All rights reserved 3 not have to be recorded and printing can be conducted
41、 at any environment. This priming cartridge is used to bring the printing system to a set toner level condition. All image and print quality modifiers should be at their factory pre-set configuration for the printer and default installed condition for the driver. If the printer and driver differ, th
42、en the driver defaults should be used. Any user selectable toner conservation modes should be disabled during testing. If the printer under test uses an internal PDF interpreter, it is ok to use it as long as the printer defaults are set to not substitute fonts. If the internal interpreter is used,
43、this should be noted on the report. To assure that the test page is rendered correctly, any page size modifiers such as Fit to Page , Page Centring and font substitution should be turned off. To further insure that font substitution does not occur, fonts should be downloaded as TrueType fonts if the
44、 driver provides that option. If the option exists, rendering of graphics should be performed by the printer, not the application software or operating system. The file should be printed using the fonts embedded in the file and should be rendered on the page in a size corresponding to the dimensions
45、 in the test page description. Page placement modifies such as page centering can be used to place the image properly on the page. If there is a question about rendering settings affecting the yield, the setting should be noted in the report. NOTE The application software (i.e. Adobe Reader), printe
46、r driver and printer may have page size modifier functions, such as Fit to Page . Make sure that all of these functions are disabled. 3.2 Sample Size A combination of at least three cartridges shall be run on a combination of at least three printers (for a minimum of nine cartridges and three printe
47、rs). This is the minimum number of engines and cartridges that should be used for testing. When feasible it is recommended that additional engines and cartridges be used in testing. When testing additional engines and cartridges above the minimum, an effort should be made to test equal number of car
48、tridges on each engine. For example, if an additional engine is to be tested then the minimum number of cartridges to be tested would be 12 (3 cartridges X 4 engines). When testing cartridges for a released product, it is recommended that cartridges and printers are procured from various sources, or
49、 selected from different production lots. The printers and cartridges must be within their useful life as stated in their users manual. NOTE It is recommended that an additional cartridge be procured to allow for the possibility of cartridge failure during testing. 3.3 Print Mode For reporting cartridge yield, the test shall be run in continuous print mode simplex printing, with printed output occurring at or near rated printer speed. The actual print speed will be semi-continuous because of printing being in
