ISO/IEC PRF 19798

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

General Information

• Status: Not Published
• ICS: 37.100.10 - Reproduction equipment
• Technical Committee: ISO/IEC JTC 1/SC 28 - Office equipment
• Drafting Committee: ISO/IEC JTC 1/SC 28/WG 2 - Consumables
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 29-Aug-2025
• Completion Date: 06-Sep-2025

Relations

• Revises: ISO/IEC 19798:2017 - Information technology — Office equipment — Method for the determination of toner cartridge yield for colour printers and multi-function devices that contain printer components
• Effective Date: 27-Jan-2024

Standards Content (Sample)

International
Standard
ISO/IEC 19798
Fourth edition
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
PROOF/ÉPREUVE
Reference number
ISO/IEC 19798:2025(en) © ISO/IEC 2025

ISO/IEC 19798:2025(en)
© ISO/IEC 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO/IEC 2025 – All rights reserved
ii
ISO/IEC 19798:2025(en)
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 file .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 cartridge yield .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
PROOF/ÉPREUVE
© ISO/IEC 2025 – All rights reserved
iii
ISO/IEC 19798:2025(en)
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.
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 document 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 or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 28, Office equipment.
This fourth edition cancels and replaces the third edition (ISO/IEC 19798:2017), which has been technically
revised.
The main changes are as follows:
— the note to the term 3.6 “test files” has been moved to 5.1 f);
— the link address of the test files in 4.7 has been updated.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
PROOF/ÉPREUVE
© ISO/IEC 2025 – All rights reserved
iv
ISO/IEC 19798:2025(en)
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 is 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 performed 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 laboratories, etc. used 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.
PROOF/ÉPREUVE
© ISO/IEC 2025 – All rights reserved
v
International Standard ISO/IEC 19798:2025(en)
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
This document is limited to the 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.
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)
implies 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 1 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).
NOTE 2 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.
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 19752, Information technology — Method for the determination of toner cartridge yield for
monochromatic electrophotographic printers and multi-function devices that contain printer components
ISO/IEC 24712, Colour test pages for measurement of office equipment cons
...

ISO/IEC DISPRF 19798:2024(en)
ISO/IEC JTC 1/SC 28
Secretariat: JISC
Fourth edition
Date: 2025-0208
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
FDIS stage
Internal
© ISO/IEC 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO'sISO’s member body in the country of the requester.
ISO Copyright Officecopyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland.
© ISO/IEC 2025 – All rights reserved
Internal
ii
ISO/IEC DISPRF 19798:2025(en)
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 . 4
4.4 Print environment . 4
4.5 Paper . 5
4.6 Maintenance . 5
4.7 Test file . 5
4.8 End of life . 6
5 Test methodology . 6
5.1 Testing procedure . 6
5.2 Procedure for handling a defective cartridge or printer . 7
6 Determination of the yield value and declaration . 7
6.1 Determination of the declared cartridge yield . 7
6.2 Test data reporting. 8
6.3 Declaration of the yield. 9
Annex A (informative) Examples of fade . 11
Annex B (informative) Flow chart . 14
Annex C (normative) Sample reporting form . 19
Annex D (normative) Optional method for comparison of colour to ISO/IEC 19752 . 27
Bibliography . 29

© ISO/IEC 2025 – All rights reserved
Internal
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.
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
document 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 or www.iec.ch/members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the use of
(a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent database
available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held responsible for
identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html.
In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 28, Office equipment.
This fourth edition cancels and replaces the third edition (ISO/IEC 19798:2017), which has been technically
revised.
The main changes are as follows:
— — the note to the term 3.63.6 “test files” has been moved to 5.15.1 f);
— — the link address of the test files in 4.74.7 has been updated.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html and www.iec.ch/national-
committees.
© ISO/IEC 2025 – All rights reserved
Internal
iv
ISO/IEC DISPRF 19798:2025(en)
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 beis 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 performed 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 labslaboratories, etc. used 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.
© ISO/IEC 2025 – All rights reserved
Internal
v
DRAFT International Standard ISO/IEC DIS 19798:2025(en)

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
This document is limited to the 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.
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)
implies 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 1 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).
NOTE 2 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.
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 19752, Information technology — Method for the determination of toner cartridge yield for
monochromatic electrophotographic printers and multi-function devices that contain printer components
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 terminology databases for use in standardization at the following addresses:
© ISO/IEC 2025 – All rights reserved

Internal
— — ISO Online browsing platform: available at https://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/
3.1 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.
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 lightness is to be made referenced to the 100th page (diagnostic page)
printed for each cartridge in testing. For examples of fade, consult Annex AAnnex A.
3.2 3.2
shake procedure
specified method to carry out the shaking of a cartridge according to the user manual
3.3 3.3
toner low
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 1 to entry: It does not indicate that the system is out of toner.
3.4 3.4
toner out
signal generated by the printer when the toner in the system is depleted and the printer is incapable of reliable
printing without user intervention
Note 1 to entry: 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.
3.5 3.5
end of life
point when
...