SIST CWA 16926-18:2023

Extensions for Financial Services (XFS) interface specification Release 3.50 - Part 18: Item Processing Module Device Class Interface - Programmer's Reference

This specification describes the XFS service class for Item Processing Modules (IPM). The specification of this service class includes definitions of the service-specific commands that can be issued, using the WFSAsyncExecute, WFSExecute, WFSGetInfo and WFSAsyncGetInfo functions.
This service class is currently defined only for self service devices.
In the U.S., checks are always encoded in magnetic ink for reading by Magnetic Ink Character Recognition (MICR), and a single font is always used. In Europe some countries use MICR and some use Optical Character Recognition (OCR) character sets, with different fonts, for their checks.
Item Processing Modules accept one or more media items (Checks, Giros, etc.) and process these items according to application requirements. The IPM class supports devices that can handle a single item as well as those devices that can handle bunches of items. The following are the three principal device types:
• Single Item: can accept and process a single item at a time.
• Multi-Item Feed with no stacker (known as an escrow in some environments): can accept a bunch of media from the customer but each item has to be processed fully (i.e. deposited in a bin or returned) before the next item can be processed.
• Multi-Item Feed with a stacker: can accept a bunch of media from the customer and all items can be processed together.
The IPM class provides applications with an interface to control the following functions (depending on the capabilities of the specific underlying device):
• Capture an image of the front of an item in multiple formats and bit depths.
• Capture an image of the back of an item in multiple formats and bit depths.
• Read the code line of an item using MICR reader.
• Read the code line of an item using OCR.
• Endorse (print text) on an item.
• Stamp an item.
• Return an item to the customer.
• Deposit an item in a bin.
• Retract items left by the customer.
The IPM device class uses the concept of a Media-In transaction to track and control a customer’s interaction with the device. A Media-In transaction consists of one or more WFS_CMD_IPM_MEDIA_IN commands. The transaction is initiated by the first WFS_CMD_IPM_MEDIA_IN command and remains active until the transaction is either confirmed through WFS_CMD_IPM_MEDIA_IN_END, or terminated by WFS_CMD_IPM_MEDIA_IN_ROLLBACK, WFS_CMD_IPM_RETRACT_MEDIA or WFS_CMD_IPM_RESET. While a transaction is active the WFS_INF_IPM_TRANSACTION_STATUS command reports the status of the current transaction. When a transaction is not active the WFS_INF_IPM_TRANSACTION_STATUS command reports the status of the last transaction as well as some current status values.
There are primarily two types of devices supported by the IPM, those devices with a stacker and those without.
In this the specification the terms “long edge” and “short edge” are used to describe the orientation of a check and length of its edges. The diagram below illustrates these definitions.

Specifikacija vmesnika razširitev za finančne storitve (XFS), izdaja 3.50 - 18. del: Vmesnik razreda naprave modula za obdelavo elementov - Referenca za programerje

Ta specifikacija opisuje razred storitve razširitev za finančne storitve (XFS) za module za obdelavo elementov (IPM). Specifikacija tega razreda storitve vključuje definicije ukazov, značilnih za določeno storitev, ki jih je mogoče izdati s funkcijami WFSAsyncExecute, WFSExecute, WFSGetInfo in WFSAsyncGetInfo.
Ta razred storitve je trenutno opredeljen samo za samopostrežne naprave.
V ZDA so čeki vedno kodirani v magnetnem črnilu – za branje se uporablja prepoznavanje znakov, zapisanih z magnetnim črnilom (MICR), in vselej je uporabljena enaka velikost črk. V Evropi nekatere države za čeke uporabljajo prepoznavanje znakov, zapisanih z magnetnim črnilom, nekatere pa nabore znakov s prepoznavanjem optičnih znakov (OCR) z različnimi velikostmi črk.
Moduli za obdelavo elementov sprejmejo enega ali več sredstev (čekov, žiro čekov itd.) in jih obdelajo v skladu z zahtevami aplikacije. Razred modula za obdelavo elementov podpira tako naprave, ki lahko obravnavajo en element, kot tiste, ki lahko obravnavajo več elementov. Obstajajo tri glavne vrste naprav:
• Za posamezne elemente: naenkrat lahko sprejme in obdela en element.
• Za več elementov brez zlagalnika (v nekaterih okoljih se imenuje hramba): lahko sprejme več sredstev stranke, vendar mora biti vsak element v celoti obdelan (npr. odložen v vsebnik ali vrnjen), šele nato je mogoče obdelati naslednji element.
• Za več elementov z zlagalnikom: lahko sprejme več sredstev stranke, pri čemer je mogoče vse elemente obdelati skupaj.
Razred modula za obdelavo elementov zagotavlja aplikacije z vmesnikom za upravljanje naslednjih funkcij (odvisno od zmogljivosti določene osnovne naprave):
• zajem slike sprednjega dela elementa v več oblikah zapisa in z različno bitno globino;
• zajem slike zadnjega dela elementa v več oblikah zapisa in z različno bitno globino;
• branje vrstice kode elementa z napravo za prepoznavanje znakov, zapisanih z magnetnim črnilom;
• branje vrstice kode elementa z napravo za prepoznavanje optičnih znakov;
• označevanje elementa (tiskanje besedila);
• žigosanje elementa;
• vrnitev elementa stranki;
• odložitev elementa v vsebnik;
• vrnitev elementov, ki jih stranka ne vzame.
Razred naprave modula za obdelavo elementov uporablja koncept transakcije sredstev za sledenje in nadzor interakcije stranke z napravo. Transakcija sredstev zajema enega ali več ukazov WFS_CMD_IPM_MEDIA_IN. Transakcija se začne s prvim ukazom WFS_CMD_IPM_MEDIA_IN in ostane aktivna, dokler ni potrjena z ukazom WFS_CMD_IPM_MEDIA_IN_END ali preklicana z ukazom WFS_CMD_IPM_MEDIA_IN_ROLLBACK, WFS_CMD_IPM_RETRACT_MEDIA ali WFS_CMD_IPM_RESET. Ko je transakcija aktivna, ukaz WFS_INF_IPM_TRANSACTION_STATUS sporoči status trenutne transakcije. Kadar transakcija ni aktivna, ukaz WFS_INF_IPM_TRANSACTION_STATUS sporoči status zadnje transakcije in nekaj vrednosti trenutnega statusa.
Modul za obdelavo elementov podpira zlasti dve vrsti naprav – z zlagalnikom in brez njega.
V tej specifikaciji se izraza »dolga stranica« in »kratka stranica« uporabljata za opis usmerjenosti čeka in dolžine njegovih stranic. Ti definiciji sta prikazani na spodnjem diagramu.

General Information

• Status: Published
• Publication Date: 22-Jan-2023
• ICS: 35.200 - Interface and interconnection equipment
• ICS: 35.240.15 - Identification cards. Chip cards. Biometrics
• ICS: 35.240.40 - IT applications in banking
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Jan-2023
• Due Date: 11-Mar-2023
• Completion Date: 23-Jan-2023
• Ref Project: CWA 16926-18:2022 - Extensions for Financial Services (XFS) interface specification Release 3.50 - Part 18: Item Processing Module Device Class Interface - Programmer's Reference

Standards Content (Sample)

SLOVENSKI STANDARD
SIST CWA 16926-18:2023
01-marec-2023

Specifikacija vmesnika razširitev za finančne storitve (XFS), izdaja 3.50 - 18. del:

Vmesnik razreda naprave modula za obdelavo elementov - Referenca za
programerje

Extensions for Financial Services (XFS) interface specification Release 3.50 - Part 18:

Item Processing Module Device Class Interface - Programmer's Reference
Ta slovenski standard je istoveten z: CWA 16926-18:2022
ICS:
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
35.240.15 Identifikacijske kartice. Čipne Identification cards. Chip
kartice. Biometrija cards. Biometrics
35.240.40 Uporabniške rešitve IT v IT applications in banking
bančništvu
SIST CWA 16926-18:2023 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST CWA 16926-18:2023
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SIST CWA 16926-18:2023
CEN
CWA 16926-18
WORKSHOP
December 2022
AGREEMENT
ICS 35.200; 35.240.15; 35.240.40
English version
Extensions for Financial Services (XFS) interface
specification Release 3.50 - Part 18: Item Processing
Module Device Class Interface - Programmer's Reference

This CEN Workshop Agreement has been drafted and approved by a Workshop of representatives of interested parties, the

constitution of which is indicated in the foreword of this Workshop Agreement.

The formal process followed by the Workshop in the development of this Workshop Agreement has been endorsed by the

National Members of CEN but neither the National Members of CEN nor the CEN-CENELEC Management Centre can be held

accountable for the technical content of this CEN Workshop Agreement or possible conflicts with standards or legislation.

This CEN Workshop Agreement can in no way be held as being an official standard developed by CEN and its Members.

This CEN Workshop Agreement is publicly available as a reference document from the CEN Members National Standard Bodies.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North

Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

Ref. No.:CWA 16926-18:2022 E
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CWA 16926-18:2022 (E)
Table of Contents

European Foreword ...................................................................................................... 4

1. Introduction .......................................................................................................... 8

1.1 Background to Release 3.50 ....................................................................................................... 8

1.2 XFS Service-Specific Programming ........................................................................................... 8

2. Item Processing Module ................................................................................... 10

2.1 Devices with a Stacker .............................................................................................................. 12

2.1.1 Automatic Accept/Refuse ...................................................................................................................12

2.1.2 Application Controlled Accept/Refuse ...............................................................................................12

2.2 Device without a Stacker ........................................................................................................... 14

2.2.1 Multi-Feed Devices without a Stacker ................................................................................................14

2.2.2 Single-Feed Devices ............................................................................................................................14

3. References ......................................................................................................... 15

4. Info Commands ................................................................................................. 16

4.1 WFS_INF_IPM_STATUS ............................................................................................................ 16

4.2 WFS_INF_IPM_CAPABILITIES .................................................................................................. 23

4.3 WFS_INF_IPM_CODELINE_MAPPING ..................................................................................... 31

4.4 WFS_INF_IPM_MEDIA_BIN_INFO ............................................................................................ 32

4.5 WFS_INF_IPM_TRANSACTION_STATUS ................................................................................ 35

4.6 WFS_INF_IPM_MEDIA_BIN_CAPABILITIES ............................................................................ 39

5. Execute Commands .......................................................................................... 41

5.1 WFS_CMD_IPM_MEDIA_IN ....................................................................................................... 41

5.2 WFS_CMD_IPM_MEDIA_IN_END .............................................................................................. 46

5.3 WFS_CMD_IPM_MEDIA_IN_ROLLBACK ................................................................................. 49

5.4 WFS_CMD_IPM_READ_IMAGE ................................................................................................ 51

5.5 WFS_CMD_IPM_SET_DESTINATION ....................................................................................... 56

5.6 WFS_CMD_IPM_PRESENT_MEDIA .......................................................................................... 57

5.7 WFS_CMD_IPM_RETRACT_MEDIA .......................................................................................... 59

5.8 WFS_CMD_IPM_PRINT_TEXT .................................................................................................. 61

5.9 WFS_CMD_IPM_SET_MEDIA_BIN_INFO ................................................................................. 62

5.10 WFS_CMD_IPM_RESET ............................................................................................................ 63

5.11 WFS_CMD_IPM_SET_GUIDANCE_LIGHT ............................................................................... 65

5.12 WFS_CMD_IPM_GET_NEXT_ITEM ........................................................................................... 66

5.13 WFS_CMD_IPM_ACTION_ITEM ................................................................................................ 68

5.14 WFS_CMD_IPM_EXPEL_MEDIA ............................................................................................... 70

5.15 WFS_CMD_IPM_GET_IMAGE_AFTER_PRINT ........................................................................ 71

5.16 WFS_CMD_IPM_ACCEPT_ITEM ............................................................................................... 73

5.17 WFS_CMD_IPM_SUPPLY_REPLENISH ................................................................................... 74

5.18 WFS_CMD_IPM_POWER_SAVE_CONTROL ........................................................................... 75

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5.19 WFS_CMD_IPM_SET_MODE ..................................................................................................... 76

5.20 WFS_CMD_IPM_SYNCHRONIZE_COMMAND ......................................................................... 77

6. Events ................................................................................................................. 78

6.1 WFS_EXEE_IPM_NOMEDIA ...................................................................................................... 78

6.2 WFS_EXEE_IPM_MEDIAINSERTED ......................................................................................... 79

6.3 WFS_USRE_IPM_MEDIABINTHRESHOLD .............................................................................. 80

6.4 WFS_SRVE_IPM_MEDIABININFOCHANGED .......................................................................... 81

6.5 WFS_EXEE_IPM_MEDIABINERROR ........................................................................................ 82

6.6 WFS_SRVE_IPM_MEDIATAKEN ............................................................................................... 83

6.7 WFS_USRE_IPM_TONERTHRESHOLD ................................................................................... 84

6.8 WFS_USRE_IPM_SCANNERTHRESHOLD .............................................................................. 85

6.9 WFS_USRE_IPM_INKTHRESHOLD .......................................................................................... 86

6.10 WFS_SRVE_IPM_MEDIADETECTED ........................................................................................ 87

6.11 WFS_EXEE_IPM_MEDIAPRESENTED ..................................................................................... 88

6.12 WFS_EXEE_IPM_MEDIAREFUSED .......................................................................................... 89

6.13 WFS_EXEE_IPM_MEDIADATA ................................................................................................. 91

6.14 WFS_USRE_IPM_MICRTHRESHOLD ....................................................................................... 94

6.15 WFS_EXEE_IPM_MEDIAREJECTED ........................................................................................ 95

6.16 WFS_SRVE_IPM_DEVICEPOSITION ........................................................................................ 96

6.17 WFS_SRVE_IPM_POWER_SAVE_CHANGE ............................................................................ 97

6.18 WFS_SRVE_IPM_SHUTTERSTATUSCHANGED ..................................................................... 98

7. Command and Event Flows .............................................................................. 99

7.1 Devices with Stacker ................................................................................................................. 99

7.1.1 Bunch Media Processing (OK flow) ...................................................................................................99

7.1.2 Bunch Media Processing (Some Media Items Returned) ..................................................................100

7.1.3 Bunch Media Processing with Errors ................................................................................................101

7.1.4 Bunch media processing with Rollback ............................................................................................102

7.1.5 Bunch media processing with Retract ...............................................................................................103

7.1.6 Bunch Media Processing - Application Refuse Decision (All OK flow) ..........................................103

7.1.7 Bunch Media Processing - Application Refuse Decision (Some items refused) ...............................104

7.2 Devices without Stacker .......................................................................................................... 106

7.2.1 Bunch Media Processing (OK flow) .................................................................................................106

7.2.2 Bunch Media Processing (Some Media Items Returned) ..................................................................107

7.2.3 Bunch Media Processing with Errors ................................................................................................108

8. ATM Mixed Media Transaction Flow – Application Guidelines.................... 110

9. C-Header File ................................................................................................... 111

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SIST CWA 16926-18:2023
CWA 16926-18:2022 (E)
European Foreword

This CEN Workshop Agreement has been developed in accordance with the CEN-CENELEC Guide 29

“CEN/CENELEC Workshop Agreements – The way to rapid consensus” and with the relevant provisions of

CEN/CENELEC Internal Regulations - Part 2. It was approved by a Workshop of representatives of interested

parties on 2022-11-08, the constitution of which was supported by CEN following several public calls for

participation, the first of which was made on 1998-06-24. However, this CEN Workshop Agreement does not

necessarily include all relevant stakeholders.

The final text of this CEN Workshop Agreement was provided to CEN for publication on 2022-11-18.

The following organizations and individuals developed and approved this CEN Workshop Agreement:

• AURIGA SPA
• CIMA SPA
• DIEBOLD NIXDORF SYSTEMS GMBH
• FIS BANKING SOLUTIONS UK LTD (OTS)
• FUJITSU TECHNOLOGY SOLUTIONS
• GLORY LTD
• GRG BANKING EQUIPMENT HK CO LTD
• HITACHI CHANNEL SOLUTIONS CORP
• HYOSUNG TNS INC
• JIANGSU GUOGUANG ELECTRONIC INFORMATION TECHNOLOGY
• KAL
• KEBA HANDOVER AUTOMATION GMBH
• NCR FSG
• NEXUS SOFTWARE
• OBERTHUR CASH PROTECTION
• OKI ELECTRIC INDUSTRY SHENZHEN
• SALZBURGER BANKEN SOFTWARE
• SECURE INNOVATION
• SIGMA SPA

It is possible that some elements of this CEN/CWA may be subject to patent rights. The CEN-CENELEC policy on

patent rights is set out in CEN-CENELEC Guide 8 “Guidelines for Implementation of the Common IPR Policy on

Patents (and other statutory intellectual property rights based on inventions)”. CEN shall not be held responsible for

identifying any or all such patent rights.

The Workshop participants have made every effort to ensure the reliability and accuracy of the technical and non-

technical content of CWA 16926-18, but this does not guarantee, either explicitly or implicitly, its correctness.

Users of CWA 16926-18 should be aware that neither the Workshop participants, nor CEN can be held liable for

damages or losses of any kind whatsoever which may arise from its application. Users of CWA 16926-18 do so on

their own responsibility and at their own risk.
The CWA is published as a multi-part document, consisting of:
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SIST CWA 16926-18:2023
CWA 16926-18:2022 (E)

Part 1: Application Programming Interface (API) - Service Provider Interface (SPI) - Programmer's Reference

Part 2: Service Classes Definition - Programmer's Reference
Part 3: Printer and Scanning Device Class Interface - Programmer's Reference
Part 4: Identification Card Device Class Interface - Programmer's Reference
Part 5: Cash Dispenser Device Class Interface - Programmer's Reference
Part 6: PIN Keypad Device Class Interface - Programmer's Reference
Part 7: Check Reader/Scanner Device Class Interface - Programmer's Reference
Part 8: Depository Device Class Interface - Programmer's Reference
Part 9: Text Terminal Unit Device Class Interface - Programmer's Reference

Part 10: Sensors and Indicators Unit Device Class Interface - Programmer's Reference

Part 11: Vendor Dependent Mode Device Class Interface - Programmer's Reference
Part 12: Camera Device Class Interface - Programmer's Reference
Part 13: Alarm Device Class Interface - Programmer's Reference
Part 14: Card Embossing Unit Device Class Interface - Programmer's Reference
Part 15: Cash-In Module Device Class Interface - Programmer's Reference
Part 16: Card Dispenser Device Class Interface - Programmer's Reference
Part 17: Barcode Reader Device Class Interface - Programmer's Reference
Part 18: Item Processing Module Device Class Interface - Programmer's Reference
Part 19: Biometrics Device Class Interface - Programmer's Reference
Parts 20 - 28: Reserved for future use.

Parts 29 through 47 constitute an optional addendum to this CWA. They define the integration between the SNMP

standard and the set of status and statistical information exported by the Service Providers.

Part 29: XFS MIB Architecture and SNMP Extensions - Programmer’s Reference
Part 30: XFS MIB Device Specific Definitions - Printer Device Class
Part 31: XFS MIB Device Specific Definitions - Identification Card Device Class
Part 32: XFS MIB Device Specific Definitions - Cash Dispenser Device Class
Part 33: XFS MIB Device Specific Definitions - PIN Keypad Device Class
Part 34: XFS MIB Device Specific Definitions - Check Reader/Scanner Device Class
Part 35: XFS MIB Device Specific Definitions - Depository Device Class
Part 36: XFS MIB Device Specific Definitions - Text Terminal Unit Device Class

Part 37: XFS MIB Device Specific Definitions - Sensors and Indicators Unit Device Class

Part 38: XFS MIB Device Specific Definitions - Camera Device Class
Part 39: XFS MIB Device Specific Definitions - Alarm Device Class
Part 40: XFS MIB Device Specific Definitions - Card Embossing Unit Class
Part 41: XFS MIB Device Specific Definitions - Cash-In Module Device Class
Part 42: Reserved for future use.

Part 43: XFS MIB Device Specific Definitions - Vendor Dependent Mode Device Class

Part 44: XFS MIB Application Management
Part 45: XFS MIB Device Specific Definitions - Card Dispenser Device Class
Part 46: XFS MIB Device Specific Definitions - Barcode Reader Device Class

Part 47: XFS MIB Device Specific Definitions - Item Processing Module Device Class

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CWA 16926-18:2022 (E)
Part 48: XFS MIB Device Specific Definitions - Biometrics Device Class
Parts 49 - 60 are reserved for future use.

Part 61: Application Programming Interface (API) - Migration from Version 3.40 (CWA 16296:2020) to Version

3.50 (this CWA) - Service Provider Interface (SPI) - Programmer's Reference

Part 62: Printer and Scanning Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version

3.50 (this CWA) - Programmer's Reference

Part 63: Identification Card Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version

3.50 (this CWA) - Programmer's Reference

Part 64: Cash Dispenser Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50

(this CWA) - Programmer's Reference

Part 65: PIN Keypad Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50

(this CWA) - Programmer's Reference

Part 66: Check Reader/Scanner Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to

Version 3.50 (this CWA) - Programmer's Reference

Part 67: Depository Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50 (this

CWA) - Programmer's Reference

Part 68: Text Terminal Unit Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version

3.50 (this CWA) - Programmer's Reference

Part 69: Sensors and Indicators Unit Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to

Version 3.50 (this CWA) - Programmer's Reference

Part 70: Vendor Dependent Mode Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to

Version 3.50 (this CWA) - Programmer's Reference

Part 71: Camera Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50 (this

CWA) - Programmer's Reference

Part 72: Alarm Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50 (this

CWA) - Programmer's Reference

Part 73: Card Embossing Unit Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to

Version 3.50 (this CWA) - Programmer's Reference

Part 74: Cash-In Module Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50

(this CWA) - Programmer's Reference

Part 75: Card Dispenser Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50

(this CWA) - Programmer's Reference

Part 76: Barcode Reader Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50

(this CWA) - Programmer's Reference

Part 77: Item Processing Module Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to

Version 3.50 (this CWA) - Programmer's Reference

Part 78: Biometric Device Class Interface - Migration from Version 3.40 (CWA 16296:2020) to Version 3.50 (this

CWA) - Programmer's Reference

In addition to these Programmer's Reference specifications, the reader of this CWA is also referred to a

complementary document, called Release Notes. The Release Notes contain clarifications and explanations on the

CWA specifications, which are not requiring functional changes. The current version of the Release Notes is

available online from: https://www.cencenelec.eu/areas-of-work/cen-sectors/digital-society-cen/cwa-download-

area/.

The information in this document represents the Workshop's current views on the issues discussed as of the date of

publication. It is provided for informational purposes only and is subject to change without notice. CEN makes no

warranty, express or implied, with respect to this document.
Revision History:
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3.10 November 29, 2007 Initial Release.
3.20 March 2, 2011 For a description of changes from version 3.10 to version
3.20 see the IPM 3.20 Migration document.
3.30 March 19, 2015 For a description of changes from version 3.20 to version
3.30 see the IPM 3.30 Migration document.
3.40 December 06, 2019 For a description of changes from version 3.30 to version
3.40 see the IPM 3.40 Migration document.
3.50 November 18, 2022 For a description of changes from version 3.40 to version
3.50 see the IPM 3.50 Migration document.
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1. Introduction
1.1 Background to Release 3.50

The CEN/XFS Workshop aims to promote a clear and unambiguous specification defining a multi-vendor software

interface to financial peripheral devices. The XFS (eXtensions for Financial Services) specifications are developed

within the CEN (European Committee for Standardization/Information Society Standardization System) Workshop

environment. CEN Workshops aim to arrive at a European consensus on an issue that can be published as a CEN

Workshop Agreement (CWA).

The CEN/XFS Workshop encourages the participation of both banks and vendors in the deliberations required to

create an industry standard. The CEN/XFS Workshop achieves its goals by focused sub-groups working

electronically and meeting quarterly.

Release 3.50 of the XFS specification is based on a C API and is delivered with the continued promise for the

protection of technical investment for existing applications. This release of the specification extends the

functionality and capabilities of the existing devices covered by the specification:

• Addition of E2E security
• PIN Password Entry
1.2 XFS Service-Specific Programming

The service classes are defined by their service-specific commands and the associated data structures, error codes,

messages, etc. These commands are used to request functions that are specific to one or more classes of Service

Providers, but not all of them, and therefore are not included in the common API for basic or administration

functions.

When a service-specific command is common among two or more classes of Service Providers, the syntax of the

command is as similar as possible across all services, since a major objective of XFS is to standardize function

codes and structures for the broadest variety of services. For example, using the WFSExecute function, the

commands to read data from various services are as similar as possible to each other in their syntax and data

structures.

In general, the specific command set for a service class is defined as a superset of the specific capabilities likely to

be provided by the developers of the services of that class; thus any particular device will normally support only a

subset of the defined command set.

There are three cases in which a Service Provider may receive a service-specific command that it does not support:

The requested capability is defined for the class of Service Providers by the XFS specification, the particular vendor

implementation of that service does not support it, and the unsupported capability is not considered to be

fundamental to the service. In this case, the Service Provider returns a successful completion, but does no operation.

An example would be a request from an application to turn on a control indicator on a passbook printer; the Service

Provider recognizes the command, but since the passbook printer it is managing does not include that indicator, the

Service Provider does no operation and returns a successful completion to the application.

The requested capability is defined for the class of Service Providers by the XFS specification, the particular vendor

implementation of that service does not support it, and the unsupported capability is considered to be fundamental

to the service. In this case, a WFS_ERR_UNSUPP_COMMAND error for Execute commands or

WFS_ERR_UNSUPP_CATEGORY error for Info commands is returned to the calling application. An example

would be a request from an application to a cash dispenser to retract items where the dispenser hardware does not

have that capability; the Service Provider recognizes the command but, since the cash dispenser it is managing is

unable to fulfil the request, returns this error.

The requested capability is not defined for the class of Service Providers by the XFS specification. In this case, a

WFS_ERR_INVALID_COMMAND error for Execute commands or WFS_ERR_INVALID_CATEGORY error

for Info commands is returned to the calling application.

This design allows implementation of applications that can be used with a range of services that provide differing

subsets of the functionalities that are defined for their service class. Applications may use the WFSGetInfo and

WFSAsyncGetInfo commands to inquire about the capabilities of the service they are about to use, and modify

their behavior accordingly, or they may use functions and then deal with error returns to make decisions as to how

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to use the service.
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2. Item Processing Module

This specification describes the XFS service class for Item Processing Modules (IPM). The specification of this

service class includes definitions of the service-specific commands that can be issued, using the

WFSAsyncExecute, WFSExecute, WFSGetInfo and WFSAsyncGetInfo functions.
This service class is currently defined only for self service devices.

In the U.S., checks are always encoded in magnetic ink for reading by Magnetic Ink Character Recognition

(MICR), and a single font is always used. In Europe some countries use MICR and some use Optical Character

Recognition (OCR) character sets, with different fonts, for their checks.

Item Processing Modules accept one or more media items (Checks, Giros, etc.) and process these items according

to application requirements. The IPM class supports devices that can handle a single item as well as those devices

that can handle bunches of items. The following are the three principal device types:

• Single Item: can accept and process a single item at a time.

• Multi-Item Feed with no stacker (known as an escrow in some environments): can accept a bunch of

media from the customer but each item has to be processed fully (i.e. deposited in a bin or returned) before

the next item can be processed.

• Multi-Item Feed with a stacker: can accept a bunch of media from the customer and all items can be

processed together.

The IPM class provides applications with an interface to control the following functions (depending on the

capabilities of the specific underlying device):
• Capture an image of the front of an item in multiple formats and bit depths.
• Capture an image of the back of an item in multiple formats and bit depths.
• Read the code line of an item using MICR reader.
• Read the code line of an item using OCR.
• Endorse (print text) on an item.
• Stamp an item.
• Return an item to the customer.
• Deposit an item in a bin.
• Retract items left by the customer.

The IPM device class uses the concept of a Media-In transaction to track and control a customer’s interaction with

the device. A Media-In transaction consists of one or more WFS_CMD_IPM_MEDIA_IN commands. The

transaction is initiated by the first WFS_CMD_IPM_MEDIA_IN command and remains active until the transaction

is either confirmed through WFS_CMD_IPM_MEDIA_IN_END, or terminated by
WFS_CMD_IPM_MEDIA_IN_ROLLBACK, WFS_CMD_IPM_RETRACT_MEDIA or

WFS_CMD_IPM_RESET. While a transaction is active the WFS_INF_IPM_TRANSACTION_STATUS

command reports the status of the current transaction. When a transaction is not active the

WFS_INF_IPM_TRANSACTION_STATUS command reports the status of the last transaction as well as some

current status values.

There are primarily two types of devices supported by the IPM, those devices with a stacker and those without.

In this the specification the terms “long edge”
...