VIDEOJET 1650, 1650 UHS Service Manual

Videojet 1650

Videojet 1650 UHS

Service Manual

P/N 462332-01

Rev AC, March 2013

Copyright March 2013 , Videojet Technologies Inc. (herein referred to as Videojet). All rights
reserved.

This document is the property of Videojet Technologies Inc. and contains confidential and proprietary
information owned by Videojet. Any unauthorized copying, use or disclosure of it without the prior
written permission of Videojet is strictly prohibited.

Videojet Technologies Inc.

1500 Mittel Boulevard Phone: [phone] Offices - USA: Atlanta, Chicago, Los Angeles, Philadelphia
Wood Dale, IL Fax: [phone] INT’L: Canada, France, Germany, Ireland, Japan, Spain,
60191-1073 USA Int’l Fax: [phone] Singapore, The Netherlands, The United Kingdom

www.videojet.com Distributors Worldwide

Compliance Information

Warning

For Customers in the European Union

This equipment displays the CE mark to indicate conformance to the
following legislation:

EN 55022: Class A Emissions Standard for industrial environments
EN 61000-6-4 Generic Emissions Standard for Heavy Industrial

Environments
EN 61000-3-2 Harmonic Current Fluctuations
EN 61000-3-3 Voltage Fluctuation and Flicker
EN 61000-6-2 Immunity Characteristics for Industrial Environ-

ments
Following the provisions of EU EMC Directive 2004/108/EC

EC Low Voltage Directive 2006/95/EC

Essential health and safety requirements relating to electrical equipment designed for use within
certain voltage limits.

IEC 60950-1 2nd Edition (Incl. Amend. 1)
EN 60950-1

Safety requirements for information technology equipment including electrical business equipment.

EN 60529

Degrees of protection provided by enclosu r es (I P Code ) .

For Customers in the U.S.A.

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: 1) this device may not cause harmful
interference, and 2) this device must accept any interference received,
including interference that may cause undesired operation.

Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to
operate the equipment.

This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful
interference, when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio

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Videojet 1650/1650 UHS Service Manual

frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely
to cause harmful interference in which case the user will be required to
correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with
Class A FCC limits.

The user may find the following booklet prepared by the Federal
Communications Commission helpful: How to Identify and Resolve
Radio-TV Interference Problems. This booklet is available from the U.S.
Government Printing Office, Washington, DC 20402,
Stock No. 004-00-00345-4.

This equipment has been tested and certified for compliance with U.S.
regulations regarding safety and electrical emissions by:

Electromagnetic Testing Services Limited

Pratts Fields

Lubberhedges Lane

Stebbing, Dunmow

Essex, CM6 3BT

England, UK

This equipment has been investigated by Underwriters Laboratories Inc.
in accordance with the standard for safety: UL 60950-1: Safety of
information technology equipment first edition. Subject 2178 marking and
coding equipment, electronics.

Report reference E252185.

For Customers in Canada

This digital apparatus does not exceed the Class A limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.

This equipment has been tested and certified for compliance with
Canadian regulations regarding safety and electrical emissions by:

Electromagnetic Testing Services Limited

Pratts Fields

Lubberhedges Lane

Stebbing, Dunmow

Essex, CM6 3BT

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England, UK

Warning

This equipment has been investigated by Underwriters Laboratories
Incorporated in accordance with the standard for safety: CAN/CSA C22.2
No. 60950-1-03. Safety of information technology equipment. Subject 2178
marking and coding equipment, electronics.

Report reference E252185.

Pour la clientèle du Canada

Le present appareil numerique n’emet pas de bruits radioelectriques
depassant les limites applicales aux appareils numerique de las class A
prescrites dans le Reglement sur le brouillage radioelectrique edicte par le
ministere des Communications du Canada.

Cet équipement est certifié CSA.

This equipment has been investigated by Underwriters Laboratories
Incorporated in accordance with the standard for safety: CAN/CSA C22.2
No. 60950-1-03. Safety of information technology equipment. Subject 2178
marking and coding equipment, electronics.

Videojet 1650/1650 UHS Service Manual

Report reference E252185.

This product is not intended for use in the immediate/direct visual
field of the display work place. To avoid disturbing reflections on
the display work place, this product shall not be placed in the
immediate/direct field of vision.

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Support and Training

Contact Information

If you have any questions or need assistance, please contact at 1-800-843­3610 (for all customers within the United States). Outside the U.S.,
customers should contact their distributor or subsidiary for assistance.

Videojet Technologies Inc.
1500 Mittel Boulevard
Wood Dale, IL 60191-1073 U.S.A.
Phone: [phone]
Fax: [phone]
International Fax: [phone]
Web: www.videojet.com

Service Program

About Total Source® Commitment

Total Source® TOTAL SERVICE PLUS RELIABILITY, is the commitment
to provide you - our customer - the complete service you deserve.

The Total Source Commitment

The Total Source® Service Program is an integral part of our business in
providing marks, codes, and images where, when, and how often
customers specify for packages, products, or printed materials. Our
commitment includes:

• Applications support

• Installation services

• Maintenance training

• Customer response center

• Technical support

• Field service

• Extended hours phone assistance

• Parts and supplies

•Repair service

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Customer Training

If you wish to perform your own service and maintenance on the printer,

Videojet Technologies Inc. highly recommends you complete a Customer
Training Course on the printer.

Note: The manuals are intended to be supplements to (and not replacements for)
Videojet Technologies Inc. Customer Training.

For more information on Videojet Technologies Inc. Customer Training
Courses, call 1-800-843-3610 (within the United States only). Outside the
U.S., customer should contact a Videojet subsidiary office or the local
Videojet distributor for further information.

Videojet 1650/1650 UHS Service Manual

Rev AC v

Table of Contents

For Customers in the European Union. . . . . . . . . . . . . . . . . . . . . . . . . . . . i

For Customers in the U.S.A.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

For Customers in Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Pour la clientèle du Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Support and Training

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Service Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Customer Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Chapter 1 — Introduction

Videojet 1650/1650 UHS Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

About the Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

Related Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

Language Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

Content Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

The Word ‘Printer’. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

Positional References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

Units of Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

User Interface Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

Abbreviations and Acronyms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

Chapters in the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

Chapter 2 — Safety

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1

General Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1

Electrical Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2

Electrical Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2

Electrical Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3

Bonding and Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3

Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5

Fluid Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5

Read the Material Safety Data Sheets . . . . . . . . . . . . . . . . . . . . . . . 2–5

Ink and Make-up Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6

Cleaning Agent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7

Compressed Air Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

UI Related Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

Other Important Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9

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Videojet 1650/1650 UHS Service Manual

Chapter 3 — Main Parts

Printer Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–1

Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–3

Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–4

Mains Power Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–4

Electronics Compartment Door . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–5

Ink Compartment Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–6

Umbilical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–6

Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–7

Back Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–17

Electronics Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–18

Power Supply Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–19

Control System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–20

Electronics Compartment Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–22

Positive Air Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–23

Printer Interface Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–24

EHT/HV Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–25

Ink Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–26

Ink Core Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–27

Smart Cartridges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–28

Ink Compartment Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–29

Gutter Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–30

Condenser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–31

Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–31

Printhead Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–32

Printhead Valve Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–32

Printhead Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–32

Printhead Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–36

Printhead Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–37

Umbilical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–41

The Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–42

Chapter 4 — Installation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–1

Tools and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–2

Typical Production Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–2

Unpack and Inspect the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–4

Commission the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–4

Inspect the Ink System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–4

Inspect the Electronics System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–8

Inspect the Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–9

Log into UI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4–11

Install Ink and Make-up Cartridges . . . . . . . . . . . . . . . . . . . . . . .4–16

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Videojet 1650/1650 UHS Service Manual

Configure the Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–23

Prime the Ink Core Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–26

Perform System Flush Purge and Umbilical Purge . . . . . . . . . . 4–28

Perform Ink Stream Alignment and Viscosity Calibration . . . . 4–31

Perform Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–37

Set the Password Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–40

To Change Default Level 1 and Level 2 password: . . . . . . . . . . 4–43

Set the Throw Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–46

Install the Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–46

Internal Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–47

External Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–49

Auto Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–52

Install the Print Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–53

Install the Stack light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–56

Nozzle Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–59

Perform Calibration and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–62

Calibrate EHT/HV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–62

Calibrate Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–64

Chapter 5 — Printer Operation

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1

Reset Pump Run Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1

Reset Machine Run Hours. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3

Perform Backup (Printer Clone). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–4

To Create Clone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–4

To Restore Clone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7

Delete Jobs from the Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–9

Perform Umbilical Purge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–10

Chapter 6 — User Interface

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1

Menu Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1

Using the Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2

Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–5

Printhead Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–6

Overall Equipment Effectiveness - Availability Tools . . . . . . . . . . . 6–11

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–11

Printer Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–11

Operational Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–12

Availability Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–13

Availability Fault Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–22

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Videojet 1650/1650 UHS Service Manual

Chapter 7 — Replacement Instructions

Printhead Bonding during Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–3

Bonding during Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–4

Chapter 8 — Maintenance

Replacement of Ink System Fan Filter for IP65 . . . . . . . . . . . . . . . . . .8–2

How to Remove the Old Ink System Fan Filter for IP65 . . . . . . .8–2

How to Install the New Ink System Fan Filter. . . . . . . . . . . . . . . .8–3

Replacement of Floor Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–3

How to Remove the Old Floor Filter IP65 . . . . . . . . . . . . . . . . . . .8–3

How to Install the New Floor Filter IP65 . . . . . . . . . . . . . . . . . . . .8–5

Ink Change Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–5

Parts/tools Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–5

How to Perform Ink Change. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–6

Chapter 9 — Troubleshooting

Read the Operator Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–1

Important Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–1

Startup Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–2

Printer Fails to Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–2

Display Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–3

LCD Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–3

Retrieving USB Logging File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–4

Beacon Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–4

Fault Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–5

Fault/Alarm Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–6

Warning Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–15

Voltage Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–41

Jet Start and Stop Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–42

Quick Start Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–42

Quick Start Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–43

Quick Stop Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–45

CSB Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–46

Standard Software Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–46

How to Clear a Clogged Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–47

Perform a Nozzle Flush. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–47

Perform a Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9–48

Perform Flush Prime (with Nozzle Attached) . . . . . . . . . . . . . . . 9–49

Clean the Nozzle with a Syringe and Cleaning Liquid . . . . . . .9–50

How to Correct Loss of Modulation. . . . . . . . . . . . . . . . . . . . . . . . . . .9–51

1-4 Rev AC

Chapter 10 — Illustrated Parts List

How to Read the IPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–1

Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–1

Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–4

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–4

Videojet 1650/1650 UHS Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–5

Electronics Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–6

Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–7

Electronics Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–7

Power Supply Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–9

Control System Board (CSB) with Back Plate . . . . . . . . . . . . . . . 10–9

Printer Interface Board Assembly (PIB) . . . . . . . . . . . . . . . . . . . 10–10

Electronics Fan Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–11

Air Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–11

EHT Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–12

Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–12

PCB Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–13

Ink Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–16

Ink Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–16

Make-up Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–17

Septum Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–18

Ink Core Module Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–19

Ink Core Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–19

Ink Core Without Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–20

Ink System Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–21

Condenser Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–21

Ink System Filter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–22

Floor Filter - IP65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–23

Cabinet Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–23

Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–26

Printhead Valve Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–27

Printhead Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–29

Printhead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–30

90 Degree Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–32

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–34

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–36

Beacon Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–36

Dry Air Kit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–37

Static Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–38

Mobile Stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–39

Printhead Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–40

Printhead Photocell Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–40

Wash Station Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–41

Videojet 1650/1650 UHS Service Manual

Rev AC 1-5

Videojet 1650/1650 UHS Service Manual

Shaft Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–42

Product Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–43

Power Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–44

Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–45

Din Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–45

Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–50

Miscellaneous Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–51

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–51

Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–51

Printhead and Umbilical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–51

90 Degree Printhead and Umbilical. . . . . . . . . . . . . . . . . . . . . . .10–52

Tools Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10–53

Appendix A — Clean Start and Stop Description

Clean Start/Stop Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–1

Clean Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–2

Clean Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–3

Nozzle Flush . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–4

Appendix B — Encoder Information

Internal Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–1

External Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–2

Auto Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–6

Appendix C — Universal CSB Test Points

CSB Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–1

Appendix D — Menu Structure

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–1

Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D–2

Appendix E — CLARiTY® Configuration Manager

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E–1

Password Configuration Manager. . . . . . . . . . . . . . . . . . . . . . . . . .E–1

CLARITY® Configuration Manager . . . . . . . . . . . . . . . . . . . . . . . . . . .E–9

Appendix F — Warnings and Errors

Warnings and Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F–1

1-6 Rev AC

Introduction

Videojet 1650/1650 UHS Printer

The Videojet 1650/1650 UHS is a continuous ink jet printer that can print
fixed and variable codes at high line speeds on consumer and industrial
products. The printer delivers superior uptime, print quality, and ease of
use to the operators.

About the Manual

1

The Videojet 1650/1650 UHS Service Manual is written for the service
technician of the printer. The Service Manual contains the installation,
service, and troubleshooting procedures.

Related Publications

The Videojet 1650/1650 UHS Operator Manual (Part Number: 462331) is
available for reference.

Language Codes

When you order these manuals, make sure to add the 2-digit language
code at the end of the part number. For example, the part number of the
Spanish version of the Service Manual is 462332-04. Use the list of
language codes shown in Table 1-1 on page 1-2 to identify the translated
versions of the manual.

Note: Availability of the Operator Manual is indicated by an asterisk (*).
Availability of the Service Manual is indicated by a plus sign (+). Contact the
Videojet distributor or subsidiary for more information.

Rev AC Videojet 1650/1650 UHS Printer 1-1

Videojet 1650/1650 UHS Service Manual

Code Language Availability (see

01 English (US) * +
02 French * +
03 German * +
04 Spanish * +
05 Portuguese Brazilian *
06 Japanese * +
07 Russian *
08 Italian *
09 Dutch *

note)

10 Chinese (Simplified) * +
11 Arabic *
12 Korean * +
13 Thai *
15 Norwegian *
16 Finnish *
17 Swedish *
18 Danish *
19 Greek *
20 Hebrew *
21 English (UK) * +
23 Polish *
24 Turkish * +
25 Czech *
26 Hungarian *
33 Vietnamese *
34 Bulgarian *
36 Chinese (Traditional) *
55 Romanian *
57 Serbian *

Table 1-1: List of Language Codes

1-2 Related Publications Rev AC

Content Presentation

Warning

This manual contains different types of information like safety guidelines,
additional notes, User Interface (UI) terminology and so on. To help you
identify the different types of information, different writing styles are
used. This section describes these writing styles.

The Word ‘Printer’

The word ‘printer’ indicates the Videojet 1650/1650 UHS printer, from
this point onwards, in this manual.

Positional References

Unless stated to the contrary, positions and directions such as left, right,
front, rear, to the right and to the left are given with respect to the printer
when viewed from the front.

Videojet 1650/1650 UHS Service Manual

Units of Measurement

This manual uses metric units of measurement. The equivalent English
measures are included in parenthesis. For example, 240 mm (9.44 inches).

Note: The default date display format is UK (day/month/year).

Safety Information

The safety information includes warning and caution statements.

Warning

The warning statements indicate hazards or unsafe practices that can
result in personal injury or death.

For example:

PERSONAL INJURY. The cleaning agent is poisonous if taken
internally. Do not drink. Seek medical attention immediately if
ingested.

Rev AC Content Presentation 1-3

Videojet 1650/1650 UHS Service Manual

Caution

Caution

The caution statements indicate hazards or unsafe practices that can result
in damage to the equipment.

For example:

EQUIPMENT DAMAGE. Do not fit or remove any connector on the
printer when the power is on, otherwise the printer may get
damaged.

Notes

Notes provide additional information about a particular topic.

For example:

Note: You can set the password protection for some functions to prevent any
unauthorized access.

User Interface Terminology

For information on operating system, refer “User Interface” on page 5-1.

Abbreviations and Acronyms

Abbreviation Expansion

AC Alternating Current
CSB Control System Board
DC Direct Current
DMM Digital Multi Meter
DVM Digital V olt Meter
EHT/HV Extra High Tension/High Voltage
FPGA Field Programmable Gate Array
IEC International Electrotechnical Commission

Table 1-2: Abbreviations and Acronyms

1-4 Abbreviations and Acronyms Rev AC

Videojet 1650/1650 UHS Service Manual

Abbreviation Expansion

LED Light Emitting Diode
LCD Liquid Crystal Display
MOD Modulation
MS Microsoft
PC Personal Computer
PCB Printed Circuit Board
PIB Printer Interface Board
PSU Power Supply Unit
SoC System on Chip
SRAM Static Random Access Memory
USB Universal Serial Bus
VDC Volts of Direct Current
WYSIWYG What You See Is What You Get
FIB Front Panel Interf ac e Boa rd

Table 1-2: Abbreviations and Acronyms (Continued)

Chapters in the Manual

Chapter
No.

1. Introduction Contains the information about this manual, the related

2. Safety Contains the safety and hazard information

3. Main Parts Describes the main parts of the printer

4. Installation Explains the installation procedures of different parts of

Chapter Name Description

publications, and writing styles used in this manual

the printer

5. Printer Operation Contains the information on how to use the UI to setup
and operate the printer

6. User Interface Explains how to use the UI to create and store messages

7. Replacement

Instructions

Explains the procedures to remove and replace the parts
of the printer

Table 1-3: List of Chapters

Rev AC Chapters in the Manual 1-5

Videojet 1650/1650 UHS Service Manual

Chapter

Chapter Name Description

No.

8. Maintenance Provides the maintenance and cleaning procedures o f the
printer.

9. Troubleshooting Contains diagnostic and troubleshooting procedures

10. IPL Contains the illustrated parts list of orderable parts

11. Appendix A Describes clean start and clean stop procedures

12. Appendix B Contains encoder setup information

13. Appendix C CSB Test Points (Universal)

14. Appendix D Contains the COMET menu structure

15. Appendix E Contains the lists of all the configurable parameters of the
printer and password configuration information.

16. Appendix F

Contains the list of CLARiTY

®

specific warnings and

errors.

Table 1-3: List of Chapters (Continued)

1-6 Chapters in the Manual Rev AC

Safety

Introduction

2

The policy of Videojet Technologies Inc. is to manufacture non-contact
printing/coding systems and ink supplies that meet high standards of
performance and reliability. We enforce strict quality control techniques to
eliminate the potential for defects and hazards in our products.

The intended use of the Videojet 1650/1650 UHS printer is to print
information directly onto a product. Use of this equipment in any other
fashion may lead to serious personal injury.

The safety guidelines provided in this chapter are intended to educate the
technicians on all safety issues, so that the printer is serviced and operated
in a safe manner.

General Safety Guidelines

• Always refer to the correct service manuals as per the specific Videojet
printer model.

• Only Videojet-trained personnel must carry out installation and
maintenance work. Any such work undertaken by unauthorized
personnel may damage the printer and will invalidate the warranty.

• To avoid damage to the printer components, use only soft brushes and
lint free cloths for cleaning. Do not use high pressure air, cotton waste,
or abrasive materials.

• The printhead must be completely dry before attempting to start the
printer, otherwise the printhead may get damaged.

• To prevent nozzle clogs, always wear rubber gloves whenever the
nozzle tubing manifold is to be disconnected from the printhead valve
module.

Rev AC Introduction 2-1

Videojet 1650/1650 UHS Service Manual

Warning

Warning

Warning

Electrical Safety Guidelines

This section explains the safety guidelines related to electrical power
supply and electrical cables.

Electrical Power Supply

PERSONAL INJURY. Lethal voltages are present within this
equipment when it is connected to the mains electrical supply. Only
trained and authorized personnel must carry out the maintenance
work.

PERSONAL INJURY. Observe all statutory electrical safety codes
and practices. Unless it is necessary to run the printer, disconnect the
printer from the mains electrical supply before removing the covers
or attempting any service or repair activity. Non-adherence to this
warning can result in death or personal injury.

PERSONAL INJURY. A high AC voltage is present at the inverter
and backlight. Extreme caution is required when diagnosing failure
in these areas.

2-2 Electrical Safety Guidelines Rev AC

Electrical Cables

Warning

Warning

Warning

Warning

PERSONAL INJURY. Use only the mains power cable supplied with
the printer. The end of this cable must have an approved, three-pole,
mains plug that has a protective ground conductor.

The electrical power cables, sockets and plugs must be kept clean
and dry.

For pluggable equipment, the socket-outlet must be installed near
the equipment and must be easily accessible.

Videojet 1650/1650 UHS Service Manual

PERSONAL INJURY. Always inspect the cables for damage, wear,
corrosion, and deterioration. Make all grounding/bonding
connections void of areas of paint, ink build-up, and corrosion.

Bonding and Grounding

PERSONAL INJURY. The printer must be connected only to an AC
power supply that has a protective ground conductor and must be
according to IEC requirements or applicable local regulations.

PERSONAL INJURY. Do not use the printer if there is any
interruption in the protective ground conductor or if the protective
ground conductor is disconnected. The failure to follow this warning
can cause an electrical shock.

Rev AC Electrical Safety Guidelines 2-3

Videojet 1650/1650 UHS Service Manual

Warning

Warning

Warning

Warning

Warning

PERSONAL INJURY. Always ground conductive equipment to an
earthing electrode or to the building grounding system with
approved cables as per NEC standards in order to drain all potential
static discharge. For example, a metal service tray to earth ground.

PERSONAL INJURY. A resistance reading from the grounded
service tray to the equipment chassis or mounting bracket should be
0 to less than 1 ohm. A resistance check should be made using a safe
and reliable ohmmeter and should be done on a frequent basis.

PERSONAL INJURY. The PCBs contain static sensitive devices. A
suitably grounded, antistatic wrist strap must be worn when
working on or handling PCBs.

PERSONAL INJURY. Always prevent static discharge from
occurring. Use proper Grounding and Bonding methods. Only use
Videojet approved metallic service trays and ground cables.

PERSONAL INJURY. Always bond conductive equipment together
with approved cables to maintain them at the same potential and
minimize static discharge. For example, printhead to metal service
tray.

2-4 Electrical Safety Guidelines Rev AC

Videojet 1650/1650 UHS Service Manual

Warning

Caution

Warning

PERSONAL INJURY. The Optional Wash Station has been solely
designed for the cleaning of the printhead.

Do not use it for purging or printing operations or for any other
purposes.

Always ensure that the jet is stopped and that any hazardous
voltages are switched off prior to the commencement of the
printhead wash down.

EQUIPMENT DAMAGE. Always empty the service trays
frequently. Some inks and cleaning solutions are flammable. Make
sure that the waste fluids are disposed according to HAZMAT.

Fuses

PERSONAL INJURY. To ensure continued protection against fire
hazards, replace fuses only with the specified type and rating.

Fluid Safety Guidelines

This section describes the hazards that may occur while handling ink,
make-up fluid, and cleaning solutions, and the safety precautions that a
user must take to prevent the hazards.

Read the Material Safety Data Sheets

Read and understand the Material Safety Data Sheet (MSDS) before using
any ink, make-up fluid, or cleaning solution. An MSDS exists for each type
of ink, make-up fluid, and cleaning solution. For more information, visit

www.videojet.com and navigate to Documentation > Material Safety Data
Sheets.

Rev AC Fluid Safety Guidelines 2-5

Videojet 1650/1650 UHS Service Manual

Warning

Warning

Warning

Ink and Make-up Fluid

PERSONAL INJURY. The ink and make-up fluid are irritating to the
eyes and respiratory system. To prevent personal injury when
handling these substances:

Always wear protective clothing and rubber gloves.

Always wear goggles with side-shields or a face mask. It is also
advisable to wear safety glasses when carrying out maintenance.

Apply barrier hand cream before handling ink.

If ink or make-up fluid contaminates the skin, wash immediately
with soap water. DO NOT use washdown or solvent to clean ink
stains from the skin.

PERSONAL INJURY. The ink and make-up fluid are volatile and
highly flammable. They must be stored and handled in accordance
with local regulations.

Do not smoke or use a naked flame in the vicinity of these
substances.

Immediately after use, remove any tissue or cloth that becomes
saturated with these substances. Dispose all such items in
accordance with the local regulations.

In the event that any ink or make-up fluid container is not
completely empty after use, it should be resealed. Only full bottles
are recommended for use when replenishing ink or make-up fluid;
partially filled bottles must be disposed in accordance with the local
regulations.

PERSONAL INJURY. When setting up the nozzle, direct the ink
stream into a beaker or suitable container. To avoid the
contamination of the ink, do not re-use any ink collected in this way.
Dispose all waste ink in accordance with the local regulations.

2-6 Fluid Safety Guidelines Rev AC

Warning

Cleaning Agent

Warning

Warning

Warning

Videojet 1650/1650 UHS Service Manual

PERSONAL INJURY. Prolonged breathing of make-up fluid or
cleaning fluid vapor may cause drowsiness and/or effects similar to
alcoholic intoxication. Use only in open, well-ventilated areas.

PERSONAL INJURY. The cleaning agent is poisonous if taken
internally. Do not drink. Seek medical attention immediately if
ingested.

PERSONAL INJURY. The cleaning agent is irritating to the eyes and
respiratory system. To prevent personal injury when handling this
substance:

Always wear protective rubber gloves and clothing.

Always wear goggles with side-shields or a face mask. It is also
advisable to wear safety glasses when carrying out maintenance.

Apply barrier hand cream before handling the cleaning agent.

If cleaning agent contaminates the skin, rinse off with running water
for at least 15 minutes.

PERSONAL INJURY. The cleaning agent is volatile and highly
flammable. It must be stored and handled in accordance with local
regulations.

Do not smoke or use a naked flame in the vicinity of the cleaning
agent.

Immediately after use, remove any tissue or cloth that becomes
saturated with cleaning agent. Dispose all such items in accordance
with local regulations.

Rev AC Fluid Safety Guidelines 2-7

Videojet 1650/1650 UHS Service Manual

Caution

Caution

Warning

Caution

EQUIPMENT DAMAGE. Make sure that the cleaning agent is
compatible with the ink used before carrying out printhead cleaning
otherwise the printhead may get damaged.

EQUIPMENT DAMAGE. Any cleaning solutions containing either
chloride, including hypochlorite bleaches or hydrochloric acid, can
cause unacceptable surface pitting and staining. These should not be
used in contact with stainless steels. If wire brushes or wire scouring
pads are used, these should be made of stainless steel. Make sure
that any abrasive media used is free from sources of contamination,
especially iron and chlorides.

Compressed Air Safety Guidelines

PERSONAL INJURY. Airborne particles and substances are a health
hazard. Do not use high pressure compressed air for cleaning
purposes.

UI Related Safety Guidelines

DATA SECURITY. To prevent unauthorized access to the software,
ensure that Logout is selected (HOME page) when exiting from a
higher level password.

2-8 Compressed Air Safety Guidelines Rev AC

Caution

RISK OF DATA LOSS. Ensure that the correct message name is
selected for message deletion. All the messages apart from the TEST
MESSAGE will be deleted when you select all for Delete.

Other Important Guidelines

1 ACCESS TO SERVICE FUNCTIONALITY. Machine functions that

only Videojet-trained personnel can access are set at password level 3
(Manufacturer’s password). To obtain the password, do one of the
following:

• Call Videojet Technologies Inc. Customer Service Department at 1-

800-843-3610 (United States only), or contact the local Videojet
Technologies Inc. representative.

Videojet 1650/1650 UHS Service Manual

•Access Service tab at www.videojet.com.

2 EXCESSIVE USE OF MAKE-UP FLUID. As solvent is used during the

stop cycle, repeatedly stopping and starting the printer can lead to
excessive use of make-up fluid or solvent. This makes the viscosity go
out of the range and can lead to a Ink Core Level High error.

3 PRINTER OVERHEATING. Report all overheating incidents to a

maintenance engineer.

4 DAMAGE TO GUTTER. Never attempt to bend the gutter. Its position

is fixed.

5 DAMAGE TO CHARGE ELECTRODE. The charge electrode is not

adjustable so, do not attempt any mechanical adjustments.

6 EQUIPMENT DAMAGE. Adhere to prescribed circuit limitations

when using any external input or output devices with the printer.

7 EQUIPMENT DAMAGE. The DIN connector for the lamp stack must

not have any inductive load placed on it as it may cause damage to the
PCB.

8 EQUIPMENT DAMAGE. Do not fit or remove any connector on the

printer when the power is on, otherwise the printer may get damaged.

9 RISK OF EXPLOSION. If the battery is replaced by an incorrect type,

it will lead to an explosion. Always dispose the used batteries
according to the instructions and local regulations.

Rev AC Other Important Guidelines 2-9

Videojet 1650/1650 UHS Service Manual

10 HEATER. In a fault condition, heater can reach 70

o

C. Do not touch
the plate on which the heater is mounted. The failure to follow this
warning can cause personal injury.

2-10 Other Important Guidelines Rev AC

Main Parts

Figure 3-1: Main Parts of the Printer

1. Touch Screen Display

2. Ink Compartment

3. Printhead

4. Umbilical

5. Connector Panel

6. Electronics Compartment*

7. Mains Power Switch*

8. Back Filter*

* The components are not shown in the picture.

Printer Overview

5

3

1

4

3

2

Rev AC Printer Overview 3-1

Videojet 1650/1650 UHS Service Manual

Figure 3-2: System Overview

Figure 3-2 shows the schematic diagram of the printer.

LCD
Touch
Screen

FIB

CSB

PSU

0 V
5 V

+15 V

-15 V

24 V

Printhead

50 way16 way

Core Module

PIB

50 way

Ink and
Make-up
Cartridges

50 way

Interface
Connectors

3-2 Printer Overview Rev AC

Cabinet

1. Touch Screen Display

2. Mains Power Switch

3. Electronics Compartment Door

4. Ink Compartment Door

5. Handle

6. Umbilical

7. Connector Panel

8. Back Filter*

* The component is not shown in the figure.

Figure 3-3: Printer Cabinet

Videojet 1650/1650 UHS Service Manual

The cabinet of the printer is made of stainless steel. The cabinet includes
the following parts:

• Control Panel (Touch screen display)

• Electronics compartment door

• Mains power switch

•Ink compartment door

• Connector panel

• Umbilical

Refer to Figure 3-3 to see the parts of the cabinet.

1

7

2

3

6

5

4

Rev AC Cabinet 3-3

Videojet 1650/1650 UHS Service Manual

Figure 3-4: Control Page

1. Printer Status Bar

2. Tools Button

3. Current Message Details Bar

4. Consumables Information

5. Print Position

6. Performance Information

7.System Control Buttons

8. Home Button

9. Job Select Button

7

5

2

3

6

8

4

1

9

Figure 3-5: Mains Power Switch

1. Mains Power Switch

2. Handle

2

1

Home Page

Figure 3-4 shows the home page of the operator control system. Refer to
Chapter 3 in the Operator Manual for more information.

Mains Power Switch

The mains power switch (item 1, Figure 3-5) is a green push button to turn
on or off the power supply to the printer. You can find the switch on the
right side of the printer.

Note: The handles (item 2) are provided for easy movement of the unit.

3-4 Cabinet Rev AC

Electronics Compartment Door

Figure 3-6: LCD Touch Screen

The electronics compartment door (item 3, Figure 3-3 on page 3-3) is
mounted on two hinges. The door has a seal that is water resistant and
prevents entry of any dust into the cabinet.

Note: The seal depends on the model of the printer. Videojet 1650/1650 UHS is
fitted with IP65 sealing.

The door is closed using two M4 x 30 socket head screws. The door
contains touch screen display (LCD) (refer to “Home Page”) and front
panel interface board.

Refer “Electronics Compartment” on page 3-18 for more information on
the electronics compartment.

LCD and Front Panel Interface Board

The front panel interface board (FIB), provides the interface between the
CSB and the LCD. This assembly is located inside the electronics
compartment door.

Videojet 1650/1650 UHS Service Manual

Rev AC Cabinet 3-5

Videojet 1650/1650 UHS Service Manual

Figure 3-7: FIB (CLARiTY PCB)

1
2

3

4
5

6

78

9

1. SD Card

2. Battery

3. To Backlight (Touch Screen)

4. To Touch Screen Membrane

5. To LCD

6. RS232 - Internal Only (not in use)

7. USB Connects to External USB
Connector

8. Ethernet Connects to CSB

9. Ethernet Connects to External
Ethernet Connector

Ink Compartment Door

The ink compartment door (item 4, Figure 3-3 on page 3-3) is mounted on
a hinge pin. The door has a seal that is water resistant and prevents entry
of any dust into the cabinet.

Note: Videojet 1650/1650 UHS is fitted with IP65 sealing.

Umbilical

The umbilical (item 6) connects the printhead to the printer cabinet. It
sends the control signals and ink to the printhead.

3-6 Cabinet Rev AC

Connector Panel

The connector panel (item 7) provides inputs for several types of external
devices.

Table 3-1 shows the connectors available for the printer.

Videojet 1650/1650 UHS Service Manual

Connector
Type

Print Trigger1 PCB 1 Videojet 1650/

COMMS
RS232

COMMS
RS485

Shaft Encoder PCB 2 Videojet 1650/

Relay Switches PCB 1 Videojet 1650/

Status Output
(Lampstack)

USB - Videojet 1650/

Message A
Input

PCB Standard Optional

1650 UHS

PCB 2 Limited functionality for Videojet 1650/

1650 UHS

PCB 1 Not Available for Videojet 1650/

1650 UHS

1650 UHS

1650 UHS

PCB 2 Videojet 1650/

1650 UHS

1650 UHS

PCB 3 Not Available for Videojet 1650/

1650 UHS

-

-

-

-

-

Print Trigger 2 PCB 3 Videojet 1650/

1650 UHS

Message B
Input

Ethernet - Videojet 1650/

I/O 25 Way PCB 4 Limited functionality for Videojet 1650/

PCB 3 Not Available for Videojet 1650/

1650 UHS

1650 UHS

1650 UHS

-

Table 3-1: Connector Panel Ports

Note: All the connectors are sealed to provide the required protection from water
and dust according to the IP65 standards.

Rev AC Cabinet 3-7

Videojet 1650/1650 UHS Service Manual

8

1. Message A Input

2. Print Trigger 2 (Reverse Print)

3. Status Output (Lampstack)

4. Shaft Encoder

5. Relay Switches

6. Print Trigger 1

7. I/O 25 Way

8. USB

9. Ethernet

10. COMMS RS485

11. COMMS RS232

12. Message B Input

Figure 3-8: Connector Panel

12

11

1

2

3

4

5

10

9

6

7

Cat 5e

Print Trigger 1 Connector

The product detector connector, detects the product and informs the
printer, when to print on the product. The printer provides a +15 VDC,
200 mA output for use by a photoelectric cell (PEC), inductive proximity
detector. The print trigger 1 connector (item 6) is a 3 way DIN connector.
The pin functions are shown in Table 3-2 on page 3-9.

Note: Photoelectric cell (PEC) is also called as inductive proximity detector or
product detector.

The default configuration is NPN (current sinking input). This input can
be changed to PNP (sourcing input) with the movement of a jumper
located on the back of the touch screen display. If the input is configured

3-8 Cabinet Rev AC

for PNP the maximum input voltage will be +24 VDC and the maximum
current is 60 mA.

Videojet 1650/1650 UHS Service Manual

1

2

3

Figure 3-9: Print Trigger 1 Connector Pin Diagram

Note: Figure 3-9 represents the view of the connector on the side of the printer.

Pin Function

DIN Pin 1 +15 VDC supply to sensor
DIN Pin 2 Sensor output
DIN Pin 3 0 VDC common

Table 3-2: Print Trigger 1 Connector Pinouts

Note: The mating cable (male, 3 pin DIN connector -P/N: 500-0036-578) is used
to interface other product detectors to the printer.

Print Trigger 2 Connector

The product detector connector, detects the product and informs the
printer, when to print on the product. This input is the second product
detector input for the printer. This is also used for the bi-directional
(reverse print) input, used for traversing printhead applications. This
input reverses the characters and message when triggered prior to PEC1
triggered. The printer provides a +15 VDC, 200 mA output for use by a
photoelectric cell (PEC). The print trigger 2 connector (item 2) is a 3 way
DIN connector. The pin functions are shown in Table 3-3 on page 3-10.

The default configuration is NPN (current sinking input). This input can
be changed to PNP (sourcing input) with the movement of a jumper
located on the back of the touch screen display. If the input is configured
for PNP the maximum input voltage will be +24 VDC and the maximum
current is 60 mA.

Rev AC Cabinet 3-9

Videojet 1650/1650 UHS Service Manual

1

2

3

Figure 3-10: Print Trigger 2 Connector

1

23

4

Figure 3-11: Shaft Encoder Connector Pin Diagram

Note: Figure 3-10 represents the view of the connector on the side of the printer.

Pin Function

DIN Pin 1 +15 VDC supply to sensor
DIN Pin 2 Sensor Output
DIN Pin 3 0 VDC common

Table 3-3: Print Trigger 2 Connector Pinouts

Note: The mating cable (male, 3 pin DIN connector (P/N: 500-0036-578) is used
to interface other product detectors to the printer.

Shaft Encoder Connector

The printer provides a nominal +15 VDC, 200 mA output for use by a shaft
encoder with a maximum frequency of 100 kHz. The printer looks for
NPN open collector input for the encoder signals. The printer uses pulses
(leading and trailing edges) from both channels (Channel A and Channel
B) of the shaft encoder. So the pulses per inch (PPI) from the encoder are
multiplied by a factor of 4. For more information, refer “Install the
Encoder” on page 4-46. The shaft encoder connector (item 4) is a 4 way
DIN connector. The pin allocation is shown in Table 3-4 on page 3-11.

3-10 Cabinet Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 3-12: Status Output Connector Pin Diagram

Note: Figure 3-11 on page 3-10 represents the view of the connector on the side of
the printer.

Pin Function

DIN Pin 1 +15 VDC supply to shaft encoder
DIN Pin 2 Shaft encoder input ‘A’
DIN Pin 3 Shaft encoder input ‘B’
Din Pin 4 0 VDC common

Table 3-4: Shaft Encoder Connector Pinouts

Note: The shaft encoder output must be of the PUSH/PULL type.

Note: The mating cable (male, 4 pin DIN connector - P/N: 500-0036-581) is used

to interface other shaft encoders to the printer.

Status Output Connector

The printer provides an output for a set of status lights through the status
output connector (Figure 3-8 on page 3-8). This provides +24 VDC output,
the printer will switch in a ground to turn on the light. This is a 6-way DIN
connector. The pin allocation is shown in Table 3-5 on page 3-12 and
Figure 3-12.

Lamp color Function

Green Print Ready Output
Yellow Warning Output
Red Fault Output

Note: For 24 VDC, the maximum current rating is 900 mA.

3

4

2

5

1

Rev AC Cabinet 3-11

6

Videojet 1650/1650 UHS Service Manual

Figure 3-13: USB Connector

Note: Figure 3-12 on page 3-11 represents the view of the connector on the side of
the printer.

Pin Function

DIN Pin 1 Red lamp negative supply
DIN Pin 2 Amber lamp negative supply
DIN Pin 3 Green lamp negative supply
DIN Pin 4 + 24 VDC supply to the strobe/siren
DIN Pin 5 Strobe/siren negative supply
DIN Pin 6 + 24 VDC common to the traffic lights

Table 3-5: Status Output Connector Pinouts

Note: The mating cable (male, 6 pin DIN connector - P/N: 500-0036-577).

USB Connector

The USB Connector (item 8) allows you to do the following:

• Message importing and exporting

• Data logging

• To update printers software

This port is not currently used for a communication port or an external
data source.

Note: Figure 3-13 represents the view of the connector on the side of the printer.

Relay Switches

The relay switches connector (item 5) is a 7 way DIN connector. This
connector supports the following relays:

• Relay ‘A’ duplicates the functionality of the green LED on the
keyboard, and you can use the relay to provide a ‘Print Ready’ output.

• Relay ‘B’ duplicates the functionality of the yellow LED on the
keyboard, and you can use the relay to provide a ‘Warning’ output.

3-12 Cabinet Rev AC

Videojet 1650/1650 UHS Service Manual

1

2

3

4

5

6

7

6

5

4

3

2

1

Figure 3-14: Relay Switches Connector Pin Diagram

Female Connector

Male Connector

Maximum Contact Loading

0.5 A @ +24 VDC

These relays have electrical ratings of 1 - 30 VDC, 300 mA maximum. It is
suggested to use +24 VDC. For example, if the printer is in a print ready
state, the normally open (N.O.) contacts closes and informs the host that
the printer is in a print ready state. If the printer is removed from the print
mode for any reason (removed from print), printer faults out, thus opens
the contacts. The pin allocation is shown in Table 3-6.

Note: Female connector (Figure 3-14) represents the view of the connector on the
side of the printer.

Connector Pin Function Wire Color
Female

Pin

DIN Pin 1 DIN Pin 6 Relay A - Normally open contact White
DIN Pin 2 DIN Pin 5 Relay A - Normally closed contact Red
DIN Pin 3 DIN Pin 4 Relay A - Common contact Black
DIN Pin 4 DIN Pin 4 Relay B - Normally open contact Green
DIN Pin 5 DIN Pin 2 Relay B - Normally closed contact Blue
DIN Pin 6 DIN Pin 1 Relay B - Common contact Brown
DIN Pin 7 DIN Pin 7 Not used -

Male Pin

Table 3-6: Relay Switches Connector Pinouts

Note: The mating cable - P/N SP378810 (male, 7 pin DIN connector ­P/N: 500-0036-583).

Rev AC Cabinet 3-13

Videojet 1650/1650 UHS Service Manual

Figure 3-15: I/O 25 Way

Note: These outputs are cold contact relays. It will not supply control voltage to
the host system. If the host is going to send a control voltage through these
contacts, it is suggested to use +24 VDC.

I/O 25 Way Connector

The I/O 25 way connector (Bulgin Connector) is available for
Videojet 1650/1650 UHS printer (item 7). See Figure 3-15.

25

24

21 20

19

16

10

15

14

9

22

23

18

17

13

12

11

7

8

6

2345

1

Note: Figure 3-15 represents the view of the connector on the side of the printer.

Pin Function

1. +15 VDC Supply Voltage

2. N/A

3. N/A

4. N/A

5. N/A

6. Jet Stop (+)

7. Jet Stop (-)

8. Spare Input #1 (+)

9. Spare Input #1 (-)

10. Spare Input #2 (+)

11. Spare Input #2 (-)

12. Common

13. Power +12 VDC to +24 VDC (Customer Supply Voltage)

Table 3-7: I/O 25 Way Pinouts

3-14 Cabinet Rev AC

Pin Function

Figure 3-16: Ethernet Connector

14. Print Complete (Open Collector)

15. Sp are Output #1 (Open Collector)

16. Sp are Output #2 (Open Collector)

17. Print Ready (Open Collector)

18. Warnings (Open Collector)

19. Faults (Open Collector)

20. Common

21. No Connection

22. No Connection

23. No Connection

24. Chassis Ground

Videojet 1650/1650 UHS Service Manual

25. Chassis Ground

Table 3-7: I/O 25 Way Pinouts (Continued)

Beacon Indicator Pins

Pin Function

17 Print Ready Output
18 Warning Output
19 Fault Output

Ethernet Connector

The Ethernet connector (item 9) is used to connect the printer to a remote
computer or network to import data or control the printer remotely.

Cat 5e

Note: Figure 3-16 represents the view of the connector on the side of the printer.

Rev AC Cabinet 3-15

Videojet 1650/1650 UHS Service Manual

1

2

3

4

5

Figure 3-17: RS-232 Connector

RS-485 Connector

The RS-485 connector is a 5 way DIN (180 degree or stereo type)
connector. Use this to connect the printer to an RS-485 network to import
data or control the printer remotely at upto 1 Mbps (bi-directional,
half-duplex).

Note: RS-485 connector is not supported for use in Videojet 1650/1650 UHS.

RS-232 Connector

The printer has an RS-232 communication port at up to 250 kbps, 1-8-1, no
parity, bi-directional, full-duplex. The RS-232 connector (item 11) is a 5
way DIN connector. The pin allocation is shown in Table 3-8.

RS-232 has limited use for print acknowledgement function.

Note: Figure 3-17 represents the view of the connector on the side of the printer.

Pin Function

DIN Pin 1 0 VDC common
DIN Pin 2 Transmit data out from the printer.
DIN Pin 3 Receive data into the printer.
Din Pin 4 RTS output from the printer.
Din Pin 5 CTS input to the printer.

Table 3-8: RS-232 Connector Pinouts

Message A and B Input Connectors

There are eight external message inputs provided on PCB 3 with four
inputs on each of two Message connectors. The user has to link adjacent
pins to indicate a logic '1' value on that bit. The link short-circuits a
resistive 15 VDC supply to an opto-isolated input.

3-16 Cabinet Rev AC

Back Filter

Figure 3-18: Back Filter (IP65 Version)

Videojet 1650/1650 UHS Service Manual

The printer uses the message inputs to select messages numbers coded in
Binary Coded Decimal (BCD) format (00-99) with Message A as the least
significant digit.

Note: Message A and B Input Connectors are not supported for use in Videojet
1650/1650 UHS.

The ink compartment draws the air from the outside atmosphere to keep
the compartment cool. The back filter removes the dust from the air that
goes inside the ink compartment.

The IP65 back filter is standard for Videojet 1650/1650 UHS.

Rev AC Cabinet 3-17

Videojet 1650/1650 UHS Service Manual

1

2

3

4

5

6

7

1. Electronics Compartment Fan

2. Power Supply Unit (PSU)

3. Positive Air Pump

4. Control System Board (CSB)

5. Printer Interface Board (PIB)

6. EHT/HV Module

7. Connector Panel Boards

Figure 3-19: Electronics Compartment

Electronics Compartment

Note: When a customer orders a Videojet 1650/1650 UHS printer with an air
dryer kit, the positive air pump is not fitted to the printer. The air dryer supplies
positive air to the printhead from an external air source. Air dryers are required
when the printer is operated in an environment with elevated humidity or where
certain water sensitive inks are used. Please contact Videojet Technologies Inc. at
1-800-843-3610 (for all customers within the United States). Outside the U.S.,
you should contact your Videojet Technologies Inc. distributor or subsidiary for
assistance.

3-18 Electronics Compartment Rev AC

Power Supply Unit

E

NN

L

L

Mains Switch

PSU

TB1

Figure 3-20: Mains Input Circuit

Figure 3-21: Power Supply Unit

The Power Supply Unit (PSU) is the main source of power to the printer.
The mains input circuit is shown in the Figure 3-20. The AC electrical
power is supplied through three core cables. The line and neutral are fed
to the On/Off switch. After the On/Off switch the line and neutral are fed
to TB1 connector on the PSU.

Videojet 1650/1650 UHS Service Manual

TB2 Connector

TB1 Connector

The PSU features are as follows:

• The PSU provides four DC voltage levels (+24 VDC, +15 VDC,
+5 VDC, and -15 VDC) to the CSB.

• The input power to the PSU ranges from 100 to 240 VAC, 50 – 60 Hz.

Rev AC Electronics Compartment 3-19

Videojet 1650/1650 UHS Service Manual

Figure 3-22: Control System Board

1. Connectors CN1, CN2 and CN3

2. Charge Tunnel and Modulation Signal
Connector

3. Input Power Connector

4. LEDs

5. JTAG

6. USB 2 Host Device

7. User Interface Connector

8. Ethernet Connector

1

2

3

4

5

6

7

8

Control System Board

Connectors 1, 2, and 3

The ribbon cables from the PIB connect to the CSB through the connectors
1, 2 and 3 (item 1, Figure 3-22) and relay the data that reaches PIB from
different parts of the printer to the CSB.

3-20 Electronics Compartment Rev AC

Videojet 1650/1650 UHS Service Manual

Charge Tunnel and Modulation Signal Connector

The charge tunnel and modulation signals are generated on the CSB.
These signals are sent directly to the printhead through the umbilical. All
other input or output signals are sent through the PIB.

Charge 1 MOD Connector

Pin Function

DIN Pin 1 Charge
DIN Pin 2 GND
DIN Pin 3 GND
DIN Pin 4 MOD

Table 3-9: Pin Functions for Charge 1 MOD Connector

Input Power Connector

You can check the voltages at input power connector (item 3, Figure 3-22
on page 3-20) to make sure that the power supply from the mains power
supply is of the correct value.

Pin 12345678
Signal +15 V 0 V +5 V -15 V +5 V +24 V 0 V N/C

Table 3-10: Pin Connections - Input Power Connector

Rev AC Electronics Compartment 3-21

Videojet 1650/1650 UHS Service Manual

1. Power LED

2. Ethernet LED

Figure 3-23: Status LEDs

1

2

Figure 3-24: Cooling Fan

LEDs

LED Description

Power Indicates power on
Ethernet Indicates the status of Ethernet communications

Table 3-11: Status LEDs

Electronics Compartment Fan

A cooling fan circulates the air inside the electronics compartment. The
top-cover casting of the printer dissipates the heat.

3-22 Electronics Compartment Rev AC

Positive Air Pump

Figure 3-25: Positive Air Pump

1. Dampener

2. Positive Air Pump

1

2

The positive air pump (with dampener) assembly provides dust free air to
the printhead and thus prevents the accumulation of dust in the printhead
and contamination of the ink (see Figure 3-25).

Videojet 1650/1650 UHS Service Manual

Note: When a customer orders a Videojet 1650/1650 UHS printer with an air
dryer kit, the positive air pump is not fitted to the printer. The air dryer supplies
positive air to the printhead from an external air source. Air dryers are required
when the printer is operated in an environment with elevated humidity or where
certain water sensitive inks are used. Please contact Videojet Technologies Inc.
Customer Service Department at 1-800-843-3610 (United States only), or
contact the local Videojet Technologies Inc. representative for more information.

Rev AC Electronics Compartment 3-23

Videojet 1650/1650 UHS Service Manual

Figure 3-26: Printer Interface Board (PIB) - Electronics Compartment Side

1. 10-way Printhead Connector

2. 12-way Printhead Connector

3. EHT/HV Cable Connector

4. Positive Air Pump Connector

5. Electronics Compartment Fan Connector

6. 16-way Connector

7. CSB Ribbon Cable Connectors (x3)

8. USB Connector

9. PCB1 Connector

10. PCB 2 Connector

11. PCB 3 Connector

12. 25-way Connector

Figure 3-27: Printer Interface Board (PIB) - Ink Compartment Side

1. 14-way Ink Door Ribbon Cable Connector

2. Ink Compartment Fan Connector

3. 16-way Ink Core Module Ribbon Cable
Connector

4. 20-way Ink Core Module Ribbon Cable
Connector

Printer Interface Board

89

10

12

11

1

234

5

6

7

4

3

12

3-24 Electronics Compartment Rev AC

The description of different connectors on the PIB is provided in the

1. Cooling Fan

2. EHT/HV Module

Figure 3-28: Cooling Fan and EHT/HV Module

Table 3-12.

Connector Description

Videojet 1650/1650 UHS Service Manual

10-way Printhead Connector
12-way Printhead Connector

EHT/HV Cable Connector Input to EHT/HV module
Positive Air Pump Connector Input to positive air pump
Fan Connector Input to electron ics compartment fan
CSB Connectors (x4) Input to CSB
PCB1 Connector Print Trigger 1, COMMS RS-485, and Relay Switches
PCB 2 Connector COMMS RS-232, Shaft Encoder, Status Output
PCB 3 Connector Message A and B Input, Print Trigger 2
PCB 4 Connector I/O 25 Pin Connector
Ink System Ink pump, valves, sensors, level detectors, smart chip supplies

Connection to valves, phase detector, strobe LED, heater and
thermistor, and gutter detect

validation system

Table 3-12: PIB Connectors

EHT/HV Module

The extra high tension (EHT/HV) module (item 2, Figure 3-28) generates
the high tension voltage (0 to 8000 VDC) that is supplied to the deflector
plate in the printhead.

1

2

Rev AC Electronics Compartment 3-25

Videojet 1650/1650 UHS Service Manual

1

2

3

Figure 3-29: Ink Compartment

1. Smart Cartridges

2. Ink Compartment Door

3. Ink Core Module

4. Ink Compartment Fan*

*

The component is not shown in the picture

Ink Compartment

The ink system provides a continuous supply of ink to the printhead at the
correct pressure, temperature and viscosity. The ink system is housed in
the printer cabinet and the different components of the system are
interconnected by Poly Tetra Fluoro Ethylene (PTFE) tubing.

3-26 Ink Compartment Rev AC

Ink Core Module

1. Ink Core Cover

2. Ink Core Pump

Figure 3-30: Ink Core Module

The ink core module maintains the pressure and viscosity of the ink in the
printer.

Videojet 1650/1650 UHS Service Manual

1

2

The ink core module contains the following subsystems:

•Ink core pump

•Ink core

Ink Core Module Connections

There are three inputs, three outputs, and one vent hydraulic connection
to the ink core module.

Connections Type of Tube

Input Hydraulic Connections • Ink addition tube (black-striped tube)

• Gutter pump discharge (blue-striped tube)

• Make-up addition tube (green-striped tube)

Table 3-13: Ink Core Module Connections

Rev AC Ink Compartment 3-27

Videojet 1650/1650 UHS Service Manual

Connections Type of Tube

Output Hydraulic
Connections

Vent Vent or breather tube (clear tube)

Table 3-13: Ink Core Module Connections (Continued)

Two ribbon cables provide the electrical interface between the ink core
module and the electronic system. The cables connect directly from the ink
core module to the PIB and allow for the transfer ink core data.

Ink Core Pump

The ink core pump is a positive displacement gear pump driven by a 24
VDC brushless motor.

The pump provides stable ink pressure to the nozzle during printing and
also provides a flow of ink to other components inside the ink core
module.

Smart Cartridges

Two types of cartridges are used in the printer.

• Flush supply tube (red-striped tube)

• Ink supply tube (clear tube)

• Ink Commissioning Tube (clear tube)

• Ink cartridge - This contains the ink.

• Make-up cartridge - This contains the make-up fluid.

Functions

The cartridge is based on smart chip technology that helps you to:

• Store the information about the ink levels and make-up fluid

• Use the correct type of ink or make-up fluid

• Know the expiry date of the ink

3-28 Ink Compartment Rev AC

Ink Compartment Fan

1

2

Figure 3-31: Smart Cartridges

1. Smart Chip PCB

2. Septum

The ink compartment fan (item 1, Figure 3-32 on page 3-30) cools the ink
compartment.

Videojet 1650/1650 UHS Service Manual

Rev AC Ink Compartment 3-29

Videojet 1650/1650 UHS Service Manual

1. Ink Compartment Fan

2. Gutter Pump

Figure 3-32: Fan and Gutter Pump

Gutter Pump

The gutter pump (item 2, Figure 3-32) is fitted to the rear of the cabinet
inside the ink compartment. The functions of the gutter pump are as
follows:

• Vacuum generation for gutter suction

• Vacuum generation to assist in nozzle back flushing

• Ink delivery to the ink core module during printer installation

1

2

3-30 Ink Compartment Rev AC

Condenser Assembly

Figure 3-33: Condenser Assembly

1. Printhead Cover

2. Printhead Engine

3. Printhead Screw

4. Printhead Valve Module

Figure 3-34: Printhead

The condenser assembly recovers solvent from the ink core vapour.

Videojet 1650/1650 UHS Service Manual

Printhead

The printhead contains the following parts:

• Printhead cover

• Printhead engine

• Printhead valve module

1

3

4

2

Rev AC Printhead 3-31

Videojet 1650/1650 UHS Service Manual

1. Printhead Cover

2. Printhead Engine

3. Printhead Screw

4. Printhead Valve Module

Figure 3-35: Printhead (UHS)

4

1

3

2

Printhead Cover

The printhead cover (item 1, Figure 3-34 on page 3-31 and Figure 3-35) is
attached to the printhead with a printhead screw (item 3). The cover
protects the printhead components. Removal of the cover is sensed by the
printer through the cover switch. When the cover is removed the voltage
to the deflector electrodes is turned off.

Printhead Valve Module

The printhead valve module (item 4) consists of the bleed/gutter valve,
ink feed valve, solvent feed valve, and the head heater.

Printhead Engine

The printhead engine (item 2) consists of the nozzle, charge electrodes,
time of flight sensors, deflection plate, and gutter tube.

Nozzle

The nozzle (item 10, Figure 3-36 on page 3-34 and Figure 3-37 on page 3-

35) creates the ink droplets.

Charge Electrode

The charge electrode (item 11) applies an electrical charge to each ink
droplet. The charge applied to the droplet is variable and affects the
position of the droplet on the substrate.

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Videojet 1650/1650 UHS Service Manual

Phase Detectors

The phase detectors (item 14) measure the ink drop velocity and perform
phasing.

Gutter Tube

The gutter tube (item 13) is the return path for the uncharged ink droplets
that are not used for printing. The gutter delivers the ink back into the ink
core.

The gutter detect senses when ink is present in the gutter. The ink feed
tubes are metallic and a signal is fed to one of them. A signal return lead is
connected to the other. When ink (which is conductive) is present, the
signal passes through it to the return lead. The gutter detect signal is then
fed, via the umbilical, to the CSB in the electronics system.

Deflection plate

The deflection plate (item 12) is supplied with a fixed positive DC voltage
(0 - 8000 VDC) from the EHT/HV Module. This voltage deflects the
charged drops over the top of the gutter, through the printhead slot, and
onto the substrate.

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Videojet 1650/1650 UHS Service Manual

1. Solvent Flush Line

2. Bleed/Gutter Line

3. Bleed/Gutter Valve

4. Ink/Solvent Feed Valve

5. Front Manifold

6. Ink Pipe

7. Vertical locking Screw

8. Ground

9. Vertical Adjustment

10. Nozzle

11. Charge Electrode

12. Deflection Plate

13. Gutter Tube

14. Phase Detectors (electrodes)

15. Horizontal Adjustment

16. Nozzle Cradle

17. Nozzle Holder

18. Horizontal Locking Screw

19. Bleed Pipe

20. Ink Feed Line

Figure 3-36: Printhead Components

20

19

18
17
16

15

14

1
2

3

4

5

6

7
8

9

10
11

12

13

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Videojet 1650/1650 UHS Service Manual

1
2

3

4

5

6

7

8

9

10

12

14

16

15

19

20

13

17

18

11

1. Solvent Flush Line

2. Bleed/Gutter Line

3. Bleed/Gutter Valve

4. Ink/Solvent Feed Valve

5. Front Manifold

6. Ink Pipe

7. Vertical locking Screw

8. Ground

9. Vertical Adjustment

10. Nozzle

11. Charge Electrode

12. Deflection Plate

13. Gutter Tube

14. Phase Detectors (electrodes)

15. Horizontal Adjustment

16. Nozzle Cradle

17. Nozzle Holder

18. Horizontal Locking Screw

19. Bleed Pipe

20. Ink Feed Line

Figure 3-37: Printhead Components (UHS)

Rev AC Printhead 3-35

Videojet 1650/1650 UHS Service Manual

Printhead Functions

The phasing and velocity fly-by sensors and supporting circuitry
contribute directly or indirectly to the performance of six critical control
functions during steady-state operation:

• Phasing

•Modulation control

• TOF measurement

• Pump speed control

• Target pressure control

•Viscosity control

The functions of the ink core module are shown in Table 3-14.

Name Function Frequency

Phasing Between prints, charge transfer to test drops is measured by

the LEAD fly-by sensor (phase detector) in orde r to
synchronize drop charging to drop break-off, thereby
optimizing print quality.

Modulation
Control

TOF
Measurement

Pump Speed
Control

T arget Pressure
Control

Between prints, modulation amplitude is validated by
performing an abbreviated auto-modulation test using the
LEAD fly-by sensor (phase detector). The amplitude is
changed in small increments whilst measuring the rate of
change of the phase angle in order to ve rify that the amplitude
setting remains at or near the “appropriate setting”.

Between prints, drop velocity is monitored by measuring the
TIME OF FLIGHT of the test drops from the LEAD (phase)
sensor to the TRAILING (velocity) sensor. The measured
result is referred to as the “actual velocity”.

A pressure transducer inside of the Core measures “actual
pressure”. This pressure is compared to the “target pressure”.
The resultant error is used to increase or decrease the pump
speed.

The “target pressure” represents the nominal pressure the
printer determines that it must operate at in order for the actual
velocity to be equal to the “velocity set point”. The printer
makes modifications to the target pressure by reviewing the
“history” of the velocity error parameter (“PID” control).
“Velocity error” refers to the difference between the actual
velocity and the set point.

Performed
approximately
25 times per
second

Performed
continuously

Performed
every TENTH
phasing test

Performed
once per
second

Occur every
10 seconds

Table 3-14: Ink Core Module Functions

3-36 Printhead Rev AC

Videojet 1650/1650 UHS Service Manual

Make-up Supply

Ink Supply

Under Vacuum

V1

V2

1

2

3

4

5

1. Gutter Tube

2. EHT/HV Plate

3. Charge Electrode

4. Nozzle

5. Heater

Figure 3-38: Printhead Operation

Name Function Frequency

Viscosity
Control

Once the printer has determined its “target pressure”, it has
the means to perform viscosity adjustments. Determination
concerning viscosity is made by comparing the empirically­determined “target pressure” to a refere nc e pr essure known
as the “temperature-compensated target pressure”. This value
is acquired indirectly from data encoded on the ink cartridge
Smart Chip. This reference pressure is mathematically
determined and represents the pressure required to acquire
the correct “actual velocity” under ideal viscosity conditions. If
the target pressure deviates from the reference pressure, the
printer attributes this to viscosity variation and responds
accordingly.

Table 3-14: Ink Core Module Functions

Printhead Operation

The flush supply and ink supply lines merge at Pico valve V1. The ink is
heated as it flows through the manifold assembly to the nozzle. The nozzle
is outfitted with both the feed and the bleed ports. The nozzle bleed port
provides a source of vacuum, used during manual
irrigation/backflushing.

Pressure is
constantly
measured.
The printer
adds make-up
if the pressure
goes outside
the given
range for a set
time period.

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Videojet 1650/1650 UHS Service Manual

The flow of ink is as follows:

1 The ink and solvent mixture flows through the feed line (item 20,

Figure 3-36 on page 3-34 and Figure 3-37 on page 3-35) into the
printhead.

2 The ink enters the feed valve (item 4).
3 The valves open or close as per the print requirements.

Note: The bleed valve opens and closes as needed during flushing the nozzle
and supplying ink to the nozzle.

4 The ink flows into the nozzle.

To adjust the nozzle refer to “Nozzle Adjustment” on page 4-59.

5 The piezoelectric crystal vibrate the nozzle at a frequency of around

64 KHz nominal value in the longitudinal direction.

This vibration enables the nozzle to breakup the stream of ink into
droplets.

6 The ink drops enter the charge electrode (item 11) where they are

charged at different voltage levels based on the character to be
generated.

7 The charged ink drops then pass through the EHT/HV Field (item 2,

Figure 3-38) and over the phase detectors.

8 The EHT/HV plate deflects the charged drops of ink at various angles

depending on the charge placed on the drop at the moment of
breakoff.

9 An electrically conductive ink is supplied under pressure by the ink

core to the nozzle assembly (item 6, Figure 3-39 on page 3-39) through
the ink feed pipe (item 1).

10 An ink stream is formed as the ink is forced out of the nozzle jet orifice

(item 5).

A modulation signal is applied to a ceramic transducer which is
clamped to the nozzle assembly. The transducer crystals (item 3 and
item 4) causes the nozzle assembly to vibrate longitudinally, breaking
up the ink stream into droplets, a small distance away (the break up
point) from the nozzle jet orifice. The frequency of modulation is
64 kHz (nominal value).

The ink droplets are produced at the same rate as the modulation
frequency and are uniform in size and separated by equal distances.
The nozzle orifice diameter is 60 or 70 microns for Videojet 1650 and
50 microns for Videojet 1650 UHS.

3-38 Printhead Rev AC

Videojet 1650/1650 UHS Service Manual

4

3

2

1

6

5

1. Ink Feed Pipe

2. Damping Mass

3. Crystal Transducer

4. Crystal Transducer

5. Nozzle Jet Orifice

6. Nozzle Assembly

Figure 3-39: Ink Jet Formation

1. Nozzle Assembly

2. Charge Electrode

Figure 3-40: Charge Electrode

Droplet Charging

11 The charge electrode (item 2 in Figure 3-40) is positioned at the break

up point of the ink stream and extends for several drops either side of
it.

Note: This allows a tolerance for break up position and shields the ink stream
from the influence of the other electrostatic fields. The distance between the
nozzle assembly (item 1) and the charge electrode is 1 mm (60 um).

1

2

Rev AC Printhead 3-39

Videojet 1650/1650 UHS Service Manual

The ink stream and the charge electrode can be considered as the two
electrodes of a capacitor. By raising the charge electrode to a specific
positive voltage (with a charge pulse) the section of the ink system within
the charge electrode will have a negative charge induced on it. When a
drop of ink then breaks from the jet it will have trapped on it a charge
directly proportional to that on the charge electrode. If the positive voltage
is then removed from the charge electrode, the negative charge on the jet
will discharge through the ink jet and nozzle assembly to ground.
However, the drop of ink which has become detached from the jet cannot
discharge as it no longer has a conductive path to ground.

Droplet Deflection

12 The droplet stream passes through an electrostatic field maintained by

the deflector electrodes that are connected to a high tension supply
(typically 6 kV).

13 The negatively charged droplets are deflected by the field towards the

high voltage deflector electrode.

The distance a drop is deflected is proportional to the charge carried.
The charge carried is proportional to the voltage applied to the charge
electrode when the drop became detached from the ink jet.

The charged droplets once deflected leave the printhead to form
characters in a dot matrix format on the substrate. Droplets which are
not required for printing are not charged and are therefore not
deflected.

3-40 Printhead Rev AC

Videojet 1650/1650 UHS Service Manual

1

2

3

4

1. Deflected Droplet Path

2. Substrate

3. Gutter

4. Droplet Path to Gutter

5. Phase Detectors (Electrodes)*

Figure 3-41: Droplet Deflection

* The part is not shown in the figure

Umbilical

The umbilical has the electrical wiring and ink system tubing from the
printer to the printhead.

Rev AC Umbilical 3-41

Videojet 1650/1650 UHS Service Manual

Figure 3-42: Hydraulic System Components

The Hydraulic System

This section describes the combined operation of the ink system,
printhead and umbilical to print on a substrate. The Figure 3-42 shows the
hydraulic system of the printer.

The hydraulic system of the printer consists of the following components:

• Ink cartridge

• Make-up cartridge

•Ink core module

• Umbilical

• Printhead

•Gutter pump

•Condenser

Nozzle

Printhead

Vent

Condensor

VL

VF

VC

VS

VP

VG

Gutter
Pump

Ink
Pump

Mixer Tank

Jet
Pump

VR

VV

VT

VJ

Ink

Flush Pump

VI

VM

Make-up

3-42 The Hydraulic System Rev AC

Installation

Caution

Warning

Warning

Introduction

This chapter describes the procedures to install the printer.

EQUIPMENT DAMAGE. Only Videojet-trained personnel must
carry out the installation and maintenance work. Any such work
undertaken by unauthorized personnel can damage the printer and
invalidate the warranty.

4

PERSONAL INJURY. Make sure that the mains electrical supply is
within the range indicated by the label adjacent to the mains inlet of
the printer. If the voltage ratings differ, do not use the printer until
you consult your Videojet supplier.

Use only the mains power cable supplied with the printer. This cable
must terminate in an approved, three-pole, mains plug which has a
protective ground conductor.

Keep electrical power cables, sockets and plugs clean and dry at all
times.

PERSONAL INJURY. The printer must be connected to an AC
power supply, which has a protective ground conductor in
accordance with IEC requirements or applicable local regulations.
Any interruption of the protective ground conductor or
disconnection to the protective ground terminal may render the
apparatus dangerous.

Rev AC Introduction 4-1

Videojet 1650/1650 UHS Service Manual

Warning

PERSONAL INJURY. Lethal voltages are present within this
equipment when it is connected to the mains electrical supply.
Observe all statutory electrical safety codes and practices. Unless it is
necessary to run the printer, disconnect the printer from the mains
electrical supply before removing the covers, or attempting any
service or repair activity. The failure to follow this warning can
cause death or personal injury.

Tools and Supplies

Tools

Refer to the service tool kit listed in “Tools Kit” on page 10-53 for
information on tools and supplies required to install the printer.

Supplies

• Two cartridges of ink

• Two cartridges of make-up fluid

• Wash bottle

• Wash solution

•Gloves

• Tissue

Typical Production Line

A typical printer installation is shown in Figure 4-1 on page 4-3, where the
printer (item 6) is mounted on a printer stand (item 7). The printhead
(item 1) is configured to print vertically with the help of a clamp and
bracket assembly. A stack light (item 8) is fitted to the printer.

4-2 Introduction Rev AC

Videojet 1650/1650 UHS Service Manual

2

1

3

4

5

6

7

8

9

Figure 4-1: Typical Production Line Installation

1. Printhead

2. Shaft Encoder

3. Shaft Encoder Cable

4. Print Trigger

5. Print Trigger Cable

6. Printer

7. Printer Stand

8. Stack light

9. Printhead Stand

Rev AC Introduction 4-3

Videojet 1650/1650 UHS Service Manual

Figure 4-2: Turn the Knob

Unpack and Inspect the Printer

1 Open the shipping box, and make sure that all the parts listed in the

packing list are present in the box. If any part is missing, contact
Videojet Technologies Inc.

• Refer to “Support and Training” for Videojet contact information.

• Refer to Chapter , “Illustrated Parts List” for part numbers.

2 Make sure that there are no damaged parts. If you find any damaged

part, contact Videojet Technologies Inc. to order a new part.

Commission the Printer

This section describes the tasks that a user must perform to commission
the printer.

Inspect the Ink System

1 Put the printer on a stand or table.

Note: The printer can be mounted on three types of stands: mobile printer
stand, static printer stand, or the wall-mounting assembly. Refer to the
respective installation instructions to install the printer on a stand.

2 Turn the knob and open the ink compartment door (see Figure 4-2).

4-4 Unpack and Inspect the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-3: Ink Compartment Door

1. Ink Compartment Door

2. Plate

Figure 4-4: Foam Pads Removal

3 Push the plate (item 2, Figure 4-3) in the direction shown to open the

ink compartment door (item 1) completely.

4 Remove and discard the foam pads (see Figure 4-4).

Rev AC Commission the Printer 4-5

Videojet 1650/1650 UHS Service Manual

1. Ink Compartment Door

2. Ink Core Module

Figure 4-5: Pull Ink Core Module

5 Remove and discard the foam pads that are attached to the CSB in the

electronics compartment.

6 Pull the ink core module out of the ink compartment (see Figure 4-5).

Inspect the ink core for shipping damages such as cracks.

7 Make sure that the ink core manifold is connected to the ink core

module correctly (see Figure 4-6 on page 4-7).

4-6 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Ink Core Manifold

Figure 4-6: Ink Core Manifold

Figure 4-7: Tubes to Ink Core Manifold

1. Clear Tube (5/32 inch)

2. Red Stripe Tube (1/8 inch)

3. Green Stripe Ink Tube (1/8 inch)

4. Air Vent

5. Blue Stripe Tube (1/8 inch)

6. Black Stripe Make-up Tube (1/8 inch)

7.Clear Tube (1/8 inch)

8 Make sure that all the tubes are connected to the ink core manifold

(see Figure 4-7). Refer to Table 4-1 on page 4-8 for the colour code of
the sleeves.

9 Make sure that the air vent tube is connected to the condenser

assembly inside the hydraulics compartment.

Rev AC Commission the Printer 4-7

Videojet 1650/1650 UHS Service Manual

Tube
Number

1Brown
2Red
3Green
4N/A
5Blue
6Black
7 Yellow

Colour code of the
Sleeve

Table 4-1: Manifold Sleeves

10 Push the ink core module into the ink compartment.
11 Close the ink compartment door.

Inspect the Electronics System

12 Open the electronics compartment. Make sure that all the electrical

cables are fitted and routed correctly.

13 Make sure that the pneumatic tube is connected correctly to either the

positive air pump or the dry air kit filter.

Note: Printers using the Dry Air kit will not have a positive air pump.

4-8 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-8: Air Pump and Dampener

1. Cables

2. Pneumatic Tube

2

1

Inspect the Printhead

14 Remove the printhead cover (see Figure 4-9 on page 4-10 and Figure

4-9 on page 4-10) and inspect for damages like:

• Loose tubing, decks, screws and manifolds

• Damage to printhead sleeve

• Scratches to printhead assembly

• Loose fitting of the umbilical on the back of the printhead

• Cracks and abrasions on the black umbilical rubber jacket

15 Remove the nozzle orifice protector.
16 Check the distance between the nozzle and the charge electrode

(Table 4-2).

Microns Charge Electrode Distance

50 Microns 1.6 mm
60 Microns 1 mm
70 Microns 2.3 mm

Table 4-2: Charge Electrode Distance

17 Replace the printhead cover.

Rev AC Commission the Printer 4-9

Videojet 1650/1650 UHS Service Manual

1

2

4

5

3

1. Umbilical

2. Printhead Cover

3. Printhead Engine

4. Printhead Cover Screw

5. Printhead Valve Module

Figure 4-9: Printhead Cover Removed

1

2

5

3

4

1. Umbilical

2. Printhead Cover

3. Printhead Engine

4. Printhead Cover Screw

5. Printhead Valve Module

Figure 4-10: Printhead Cover Removed (UHS)

4-10 Commission the Printer Rev AC

Log into UI

Figure 4-11: Menu Screen

18 Connect the printer to the AC power supply and turn on the printer.

Videojet 1650/1650 UHS Service Manual

The menu screen appears on the display (see Figure 4-11).

19 Log into the UI at Manufacturer level. Touch the ‘Tools’ icon and touch

Setup menu. Select Manufacturer and enter the password.

Rev AC Commission the Printer 4-11

Videojet 1650/1650 UHS Service Manual

Figure 4-12: Password Screen

Note: For manufacturer password, please contact Videojet Technologies Inc.
at 1-800-843-3610 (for all customers within the United States). Outside the
U.S., you should contact your Videojet Technologies Inc. distributor or
subsidiary for assistance. Alternatively, you can visit www.videojet.com >
Support > Videojet Password Generator.

20 Navigate to Tools > Setup > Control > Internationalisation and select the

appropriate Language and Region/Country (see Figure 4-13).

21 Once both Language and Region/Country are set up, confirm that the

Measurement Units and Font Editor Group are as required (see Figure 4-

13).

4-12 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-13: Internationalisation

Figure 4-14: Calibrate EHT/HV

22 Navigate to Tools > Setup > Printhead > EHT/HV.

23 Touch Calibrate EHT/HV.

Rev AC Commission the Printer 4-13

Videojet 1650/1650 UHS Service Manual

Figure 4-15: EHT/HV Calibration

Figure 4-16: EHT/HV Calibration Sweep

24 Touch Yes. EHT/HV Calibration Sweep occurs. Refer to Figure 4-16.

25 Touch OK once EHT/HV calibration is complete. Refer to Figure 4-17

on page 4-15.

4-14 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-17: EHT/HV Calibration Complete

26 Touch the Home button to return to the Home Page.

Rev AC Commission the Printer 4-15

Videojet 1650/1650 UHS Service Manual

Warning

Warning

Install Ink and Make-up Cartridges

PERSONAL INJURY. The ink, solvent and make-up fluid are
irritating to the eyes and respiratory system. To prevent personal
injury when handling these substances follow the guidelines given
below:

Always wear protective clothing and rubber gloves.

Always wear goggles with side-shields or a face mask. It is also
advisable to wear safety glasses when carrying out maintenance.

Apply barrier hand cream before handling ink.

If ink or make-up fluid contaminates the skin, wash immediately
with soapy water. DO NOT use washdown or solvent to clean ink
stains from the skin.

Read and understand the Material Safety Data Sheet (MSDS) before
using any ink, make-up fluid, or cleaning solution. An MSDS exists
for each type of ink, make-up fluid, and cleaning solution. For more
information, visit www.videojet.com and navigate to Documentation >

Material Safety Data Sheets

27 Touch Tools > Diagnostics > Control > Versions to view the version

information.

4-16 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-18: Versions

Verify that the latest software is available and check the following:

• Operating System Version

• Printer Software Version

• Printer PE Firmware Version

• Printer CE Image Version

Touch Tools > Diagnostics > Control > System Information to confirm
that the Printer Utilization (CSB/Ink/Core) are set at High+/High+ for
Videojet 1650 and High+UHS/High+UHS for Videojet 1650 UHS.

Touch the ‘Home’ button to return to Home Page.

Rev AC Commission the Printer 4-17

Videojet 1650/1650 UHS Service Manual

Figure 4-19: System Information

Figure 4-20: Valve Test

28 Navigate to Tools > Setup > Printhead > System Service Operations and

touch ‘Valve Test’.

29 Select test type as Open/Close. Select the valve from the list of valves

and select Start Valve Test to ‘On’.

4-18 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-21: Valve Test

30 The valve test begins. The valve state toggles automatically between

‘On’ and ‘Off’. Repeat the procedure for all the twelve valves by
selecting from ‘Select Valve’.

31 Open the ink compartment door (refer to Step 2 and Step 3 on page 4-

5).

32 Install one new cartridge of ink and one new cartridge of make-up

fluid in the printer (Figure 4-22).

Rev AC Commission the Printer 4-19

Videojet 1650/1650 UHS Service Manual

1

2

Figure 4-22: Ink and Makeup Cartridge Holder

1. Ink Receptacle

2. Make-up Receptacle

Figure 4-23: Ink Information

33 Make sure that the ink and makeup level in the home page show 100%

full. Touch ‘consumables’ on the home screen and verify the ink and
make-up part numbers.

34 Navigate to Tools > Diagnostics > Consumables > Ink. Verify the ink

type and expiry date.

4-20 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-24: Makeup Consumables

35 Navigate to Tools > Diagnostics > Consumables > Makeup. Verify the

make-up type and expiry date. (see Figure 4-24).

36 Update Ink Core Parameters.

Note: Make sure that the ink and make-up cartridges are inserted into the
correct slots.

To update the parameters, do the following tasks:

a. Touch Tools > Setup > Printhead > System Service Operations > Update

Ink Core Parameters. A message appears requesting your
confirmation (see Figure 4-25 on page 4-22).

Rev AC Commission the Printer 4-21

Videojet 1650/1650 UHS Service Manual

Figure 4-25: Update Ink Core Parameters

Figure 4-26: Ink Core Consumables

b. Touch Yes.

37 Navigate to Tools > Diagnostics > Consumables > Ink Core. Verify the ink

and make up parameters (see Figure 4-26).

4-22 Commission the Printer Rev AC

Configure the Printer

Figure 4-27: Set Time/Date

38 Please make sure printhead is clean and dry.
39 Set date and time. Navigate to Tools > Setup > Control > Date And Time

(see Figure 4-27).

Videojet 1650/1650 UHS Service Manual

40 Verify the nozzle type and the conduit length.

• Navigate to Tools > Setup > Printhead > Head Parameters (see
Figure 4-28). Make sure you select the correct nozzle type for the
current configuration (60 micron or 70 micron for Videojet 1650, 50
micron for Videojet 1650 UHS).

Rev AC Commission the Printer 4-23

Videojet 1650/1650 UHS Service Manual

Figure 4-28: Head Parameters

• Make sure that the conduit length is set correctly for the current
configuration (see Table 4-3).

Printer Conduit Length

Videojet 1650/1650
UHS

3m (standard), 6m (optional)

Table 4-3: Conduit Length

41 Make sure that the printhead is placed at the same level as the

umbilical exits the printer.

• Navigate to Tools > Setup > Printhead >Head Parameters > Printhead
Elevation (see Figure 4-29). Make sure that the current value is
‘zero’.

4-24 Commission the Printer Rev AC

Videojet 1650/1650 UHS Service Manual

Figure 4-29: Printhead Elevation

Note: If it is not practical to have the printhead at the same height as the
umbilical exists, set the printhead elevation at the correct value (in required
units). If the printhead is below the cabinet - enter a negative number. The
printhead should be at the same height as the point where the umbilical exits
the cabinet.

Rev AC Commission the Printer 4-25

Videojet 1650/1650 UHS Service Manual

Figure 4-30: System Service Operations

2

1

Figure 4-31: Prime Core

1. Black Striped Tube

2. Blue Striped Tube

Prime the Ink Core Module

42 Navigate to Tools > Setup > Printhead > System Service Operations > Fill

Ink Core to prime the printer with the ink (see Figure 4-30).

43 Make sure that the fluid flows through the black-striped tube (item 1,

Figure 4-31) and blue-striped tube (item 2).

44 Monitor the flow of fluid as it is pulled toward the ink core. As the ink

core reaches a low level, the user interface displays the ‘Ink Core Low’
Warning.

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Videojet 1650/1650 UHS Service Manual

Note: Make sure to see that the ink is being pulled from the cartridge to the
gutter pump and then sent to the ink core. If the ink is not flowing, the
system shows the cartridge empty warning even though no fluid was pulled
from it.

45 The Fill Ink Core procedure stops automatically when the ink core

level reaches middle level.

If the ink level stalls above ‘low’ but below ‘middle’, replace the
cartridge when prompted to allow the completion of the ‘Fill Ink Core’
procedure.

Note: The printer indicates if another cartridge is required to complete the
procedure.

Note: Monitor the Ink Core to track the Ink Core Level from Low to Middle.
Navigate to Tools > Diagnostics > Consumables > Ink Core (see Figure 4-26
on page 4-22).

Rev AC Commission the Printer 4-27

Videojet 1650/1650 UHS Service Manual

Caution

1

2

4

5

3

1. Umbilical

2. Printhead Cover

3. Printhead Engine

4. Printhead Cover Screw

5. Printhead Valve Module

Figure 4-32: Printhead Cover Removed

1. Umbilical

2. Printhead Cover

3. Printhead Engine

4. Printhead Cover Screw

5. Printhead Valve Module

Figure 4-33: Printhead Cover Removed (UHS)

Perform System Flush Purge and Umbilical Purge

46 Remove the printhead cover screw that fastens the printhead cover to

the printhead chassis and remove the printhead cover (see Figure 4-32
and Figure 4-33).

1

2

4

5

3

EQUIPMENT DAMAGE. Always wear a set of rubber gloves before
disconnecting the nozzle tubing manifold. This helps to prevent
nozzle clogs.

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Videojet 1650/1650 UHS Service Manual

1. M2 x 6 Socket-head Screw

2. Nozzle Bypass Manifold

3. Tubing

4. Quick Disconnect

5. 2 Way Manifold Gasket

Figure 4-34: Bypass Manifold

47 Remove the M2 x 6 socket-head-cap screw (item 1, Figure 4-34) that

attaches the front tubing manifold to the printhead valve module.

48 Remove the 2-way manifold gasket (item 5).
49 Put the 2-way manifold gasket provided in the bypass kit on the ports

of the printhead valve module.

50 Fit the nozzle bypass manifold (that has the loop of tube) (Part

Number 399247) to the printhead valve module using the M2 x 6
socket-head screw.

1

2

3

5

3

4

51 Open the quick disconnect (item 4) in the middle of the loop and

direct the supply side into a receptacle.

Rev AC Commission the Printer 4-29