ISO/IEC 19798:2017
(Main)Information technology — Office equipment — Method for the determination of toner cartridge yield for colour printers and multi-function devices that contain printer components
Information technology — Office equipment — Method for the determination of toner cartridge yield for colour printers and multi-function devices that contain printer components
The scope of ISO/IEC 19798:2017 is limited to evaluation of toner cartridge page yield for toner-containing cartridges (i.e. all-in-one toner cartridges and toner cartridges without a photoconductor) for colour electrophotographic print systems. This document can also be applied to the printer component of any multifunctional device that has a digital input printing path, including multi-function devices that contain electrophotographic printer components. ISO/IEC 19798:2017 is only intended for the measurement of toner cartridge page yield when printing on plain paper using cyan, magenta, yellow and black toner cartridges. No other claims can be made from this testing regarding quality, reliability, etc. ISO/IEC 19798:2017 is not for use with printers whose minimum printable size is equal to or greater than A3 or for photo-only printers. NOTE 1 Application of this document for yield measurement of toner replenishment systems (i.e. toner cartridge and bottle type systems where the toner reservoir is internal to the printing system and not user-replaceable) requires some procedural modifications specifically noted herein. This document is intended for equipment used in the office space and does not apply to production volume or large format printing machines where the major cost of ownership is not caused by the consumable yield measured in this document. NOTE 2 An all-in-one toner cartridge is a cartridge that includes at least: a toner containment part, a photoreceptor part and a developer part (see ISO/IEC 29142‑1).
Technologies de l'information — Équipements de bureau — Méthode pour la détermination du rendement de cartouche de toner pour les imprimantes couleur et pour les dispositifs multifonctionnels qui contiennent des composants d'imprimantes
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 19798
Third edition
2017-01
Information technology — Office
equipment — Method for the
determination of toner cartridge
yield for colour printers and multi-
function devices that contain printer
components
Technologies de l’information — Équipements de bureau — Méthode
pour la détermination du rendement de cartouche de toner pour
les imprimantes couleur et pour les dispositifs multifonctionnels qui
contiennent des composants d’imprimantes
Reference number
©
ISO/IEC 2017
© ISO/IEC 2017, Published in Switzerland
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ii © ISO/IEC 2017 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test parameters and conditions . 2
4.1 Set-up . 2
4.2 Sample size . 3
4.3 Print mode . 3
4.4 Print environment . 4
4.5 Paper . 4
4.6 Maintenance . 5
4.7 Test files . 5
4.8 End of life . 5
5 Test methodology . 6
5.1 Testing procedure . 6
5.2 Procedure for handling a defective cartridge or printer . 6
5.2.1 General. 6
5.2.2 Defective cartridge . 6
5.2.3 Defective printer . 7
6 Determination of the yield value and declaration . 7
6.1 Determination of the declared yield value . 7
6.2 Test data reporting . 8
6.3 Declaration of the yield . 8
Annex A (informative) Examples of fade .10
Annex B (informative) Flow chart .11
Annex C (normative) Sample reporting form .13
Annex D (normative) Optional method for comparison of colour to ISO/IEC 19752 .17
Bibliography .19
© ISO/IEC 2017 – All rights reserved iii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
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 international
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www . i so .org/ iso/ foreword .html.
The committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 28, Office
equipment.
This third edition cancels and replaces the second edition (ISO/IEC 19798:2007), of which it constitutes
a minor revision with the following changes:
— The definitions for 3.1, 3.2, 3.3 and 3.4 have been aligned with ISO/IEC 19752:2016.
— For the sample size in 4.2 ‘at least’ has been inserted.
— 4.8 has been added as a subclause containing information previously given in notes to entry in 3.5;
— ISO 29142-1 has been added to the Bibliography.
iv © ISO/IEC 2017 – All rights reserved
Introduction
The purpose of this document is to provide a process for determining the cartridge page yield for a given
colour electrophotographic print system (i.e. all-in-one toner cartridges and toner cartridges without
a photoconductor) using a standard office consumer type test suite. This test suite is not focused on
printing of photographs, but is intended to be a sampling of typical office consumer pages. In the case
where a cartridge set can be used in multiple printer models, only one yield test needs to be performed
as long as the difference between printer models does not impact yield.
NOTE A cartridge supplier can choose to use more than one market identifier for a single physical cartridge.
In this case, only one yield test is required as long as there are no differences in the cartridges other than market
identifiers.
This document prescribes the following:
— the test method that manufacturers, test labs, etc. 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 the documentation supplied to the
consumer by the manufacturer.
The cartridge yield is determined by an end of life judgment, or signalled with either of two phenomena:
fade caused by depletion of the useable toner in the cartridge or automatic printing stop caused by a
toner out detection function.
This document will be used for the measurement of one of the contributions to cost per page (CPP). This
document does not directly measure CPP, only the yield of the magenta, cyan, yellow and black toner
cartridges. In most cases, these are not the only contributors to the CPP. It is beyond the scope of this
document to provide a methodology for calculation of CPP.
© ISO/IEC 2017 – All rights reserved v
INTERNATIONAL STANDARD ISO/IEC 19798:2017(E)
Information technology — Office equipment — Method
for the determination of toner cartridge yield for colour
printers and multi-function devices that contain printer
components
1 Scope
The scope of this document is limited to evaluation of toner cartridge page yield for toner-containing
cartridges (i.e. all-in-one toner cartridges and toner cartridges without a photoconductor) for colour
electrophotographic print systems. This document can also be applied to the printer component of
any multifunctional device that has a digital input printing path, including multi-function devices that
contain electrophotographic printer components.
This document is only intended for the measurement of toner cartridge page yield when printing on
plain paper using cyan, magenta, yellow and black toner cartridges. No other claims can be made from
this testing regarding quality, reliability, etc.
This document is not for use with printers whose minimum printable size is equal to or greater than A3
or for photo-only printers.
NOTE 1 Application of this document for yield measurement of toner replenishment systems (i.e. toner
cartridge and bottle type systems where the toner reservoir is internal to the printing system and not user-
replaceable) requires some procedural modifications specifically noted herein. This document is intended for
equipment used in the office space and does not apply to production volume or large format printing machines
where the major cost of ownership is not caused by the consumable yield measured in this document.
NOTE 2 An all-in-one toner cartridge is a cartridge that includes at least: a toner containment part, a
photoreceptor part and a developer part (see ISO/IEC 29142-1).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 24712, Colour test pages for measurement of office equipment consumable yield
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
3.1
fade
phenomenon whereby a noticeable reduction in density uniformity in the bars around the sides of the
diagnostic page occurs
Note 1 to entry: This does not have to be a distinct gap.
© ISO/IEC 2017 – All rights reserved 1
Note 2 to entry: In this test, fade is defined as a noticeably lighter area, 3 mm or greater, located in the bars
around the diagnostic page of the test suite. Generally, the lightening will occur parallel to the paper movement
direction during printing. The determination of the change in light
...
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