HP Indigo 7000 User's Guide

HP Indigo 7000 Digital Press
User Guide
HP Indigo 7000 Digital Press
User guide
© 2008 Copyright Hewlett-Packard Development Company, L.P.
Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.
The information contained herein is subject to change without notice.
The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
HP, HP Indigo Press, HP Indigo Press RIP, and HP ElectroInk are trademarks or registered trademarks of HP.
Adobe® PostScript® is a trademark of Adobe Systems Incorporated.
MS Windows® and Windows® are U.S. registered trademarks of Microsoft Corp.
All other products or name brands are trademarks of their respective holders.
The HP Indigo press' counter feature records the number of impressions you make using your press. The counter does not reflect any previous use of the press or its age.
The HP Indigo press is a Class 1 Laser Product containing high voltage power supplies and laser light sources. There is no danger to persons or equipment when the system is operated in accordance with the directions provided by HP in this and other publications. All high voltage power supplies and laser sources are located behind protective covers. Warning labels are attached to each protective cover. Do not remove covers.
Part Number: CA394-00180
First Edition: May 2008
Table of contents
1 About this user guide
Overview .............................................................................................................................................. 2
Conventions used in this guide ............................................................................................................ 4
2 Product overview
HP Indigo press .................................................................................................................................... 6
HP Indigo 7000 Digital Press ............................................................................................... 6
Press serial number ............................................................................................................. 7
General press specifications ................................................................................................................ 8
Printing rate ......................................................................................................................... 8
3 Safety
Overview ............................................................................................................................................ 10
Warning signs and labels ................................................................................................................... 11
Warning labels on the press .............................................................................................. 11
Warning signs .................................................................................................................... 12
Placement of warning labels .............................................................................................. 13
Safety devices .................................................................................................................................... 14
Material safety data sheets (MSDS) .................................................................................. 14
Fire extinguishing equipment ............................................................................................. 14
Eye wash stations .............................................................................................................. 14
Noise levels ....................................................................................................................... 14
Heat insulating tools .......................................................................................................... 14
Electrical safety .................................................................................................................. 14
Emergency power shutdown .............................................................................................................. 16
Door interlocks and warning indicators .............................................................................................. 19
Door interlocks ................................................................................................................... 19
Attention lights .................................................................................................................................... 21
Maintenance safety and emergency procedures ............................................................................... 23
Standby status ................................................................................................................... 23
Inching button .................................................................................................................... 23
Inch-safe method ............................................................................................................... 23
Press lockout procedure .................................................................................................... 24
Combustible and flammable liquids and fumes .................................................................................. 25
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Isopropyl alcohol (IPA) ....................................................................................................... 25
Handling and storing imaging oil, inks, and IPA ................................................................ 25
Disposing of consumables and cleaning materials ............................................................ 25
Waste bottles ..................................................................................................................... 26
Additional information ........................................................................................................ 27
4 Operating the press
Turning the press on .......................................................................................................................... 30
Using the press .................................................................................................................................. 31
Using the control panel ....................................................................................................................... 32
Using the software ............................................................................................................. 32
Turning the press off .......................................................................................................................... 38
The control panel .............................................................................................. 32
Small press schematic ...................................................................... 32
Print job panel ................................................................................... 33
Main toolbar ...................................................................................... 34
Print controls ..................................................................................... 34
Working area ..................................................................................................... 37
Navigating in the working area ......................................................... 37
Virtual keyboards .............................................................................................. 37
5 Job handling
Managing jobs .................................................................................................................................... 40
Print Queue ........................................................................................................................ 40
Printing jobs ........................................................................................................................................ 41
Stage 1: Loading jobs ........................................................................................................ 41
Stage 2: Proofing ............................................................................................................... 41
Stage 3: Printing the full run .............................................................................................. 42
Job maintenance ................................................................................................................................ 43
Job disposition and retrieval .............................................................................................. 43
Editing job properties ......................................................................................................... 43
Image placement ............................................................................................................... 44
Editing job look-up tables (LUTs) ....................................................................................... 46
Screening ........................................................................................................................... 48
Inks “double-hit” printing .................................................................................................... 49
Linework and resolution ..................................................................................................... 50
6 Color management
Calibrating the press colors ................................................................................................................ 54
Color Calibration procedures .............................................................................................................. 55
Defining substrate-related color parameters ...................................................................................... 57
Optical density of substrates .............................................................................................. 57
Selecting a workflow for full color calibration and substrate-related parameters ............................... 59
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Very high accuracy workflow ............................................................................................. 59
High accuracy workflow ..................................................................................................... 59
Normal accuracy workflow ................................................................................................. 59
Viewing last color calibration generation ........................................................................... 60
Determining substrate type ................................................................................................ 60
7 Substrate handling system
Overview ............................................................................................................................................ 66
Substrate specifications ..................................................................................................................... 67
Grain direction ................................................................................................................... 67
Sheet trimming ................................................................................................................... 68
Sheet size .......................................................................................................................... 68
Loading substrate into the feeder ....................................................................................................... 69
Monitoring status of substrates in drawers ......................................................................................... 70
Defining substrate type ....................................................................................................................... 71
Operating and unloading the stacker ................................................................................................. 73
Unloading a substrate stack .............................................................................................. 74
Defining stacker options ..................................................................................................................... 76
Adjusting stacker options ................................................................................................... 76
Clearing substrate jams ...................................................................................................................... 78
Removing a substrate jam at the external heating housing ............................................... 79
Maintaining the substrate transport system ........................................................................................ 84
Cleaning the substrate path ............................................................................................... 84
8 Operator routines
Maintenance routines ......................................................................................................................... 88
Lubricating the mechanical system .................................................................................................... 91
9 Ink system
Overview ............................................................................................................................................ 94
Replacing ink cans ............................................................................................................................. 95
Rebuilding the ink in a tank ................................................................................................................ 96
Draining ink tanks ............................................................................................................................... 98
Cleaning the ink pumps ...................................................................................................................... 99
Using the maintenance routine checklists ......................................................................... 88
Configuration file backup ................................................................................... 88
Practical tips for performing maintenance routines ............................................................ 89
Protecting substrate .......................................................................................... 89
IPA contamination ............................................................................................. 89
Water contamination ......................................................................................... 90
PIP protection .................................................................................................... 90
Replacing the lubrication can ............................................................................................. 91
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10 Binary ink developer (BID)
Overview .......................................................................................................................................... 104
Replacing the BID ............................................................................................................................ 106
Removing a BID ............................................................................................................... 106
Installing a new BID ......................................................................................................... 107
Returning a BID ............................................................................................................... 109
Adjusting the BID engage and disengage angle .............................................................................. 110
11 Blanket
Overview .......................................................................................................................................... 118
Replacing the blanket ....................................................................................................................... 119
Removing the old blanket ................................................................................................ 119
Installing a new blanket ................................................................................................... 121
Cleaning the blanket ......................................................................................................................... 122
Using the Print Cleaner wizard ........................................................................................ 122
Manually cleaning the blanket ......................................................................................... 122
Recovering the blanket surface ....................................................................................... 122
Using the automatic blanket cleaner page ....................................................................... 123
First transfer calibration .................................................................................................................... 125
Calibrating the pressure ................................................................................................... 125
Cleaning the ITM area ...................................................................................................................... 128
12 PIP
Overview .......................................................................................................................................... 130
Replacing the PIP Foil ...................................................................................................................... 131
Replacing the PIP underlayer ........................................................................................................... 133
13 Impression drum
Overview .......................................................................................................................................... 140
Replacing the impression paper ....................................................................................................... 141
Cleaning the grippers ....................................................................................................................... 143
14 Imaging oil
Overview .......................................................................................................................................... 146
Refilling the imaging oil tank ............................................................................................................. 147
Adding recycling agent ..................................................................................................................... 148
Replacing the imaging oil filters ........................................................................................................ 150
Cleaning the imaging oil cleanness sensor ...................................................................................... 15 2
Removing the old PIP foil ................................................................................................ 131
Installing a new PIP foil .................................................................................................... 131
Removing the old PIP underlayer .................................................................................... 133
Cleaning the PIP drum ..................................................................................................... 133
Installing the new PIP underlayer .................................................................................... 134
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15 Utility cabinet
Overview .......................................................................................................................................... 156
Draining water and process oily waste ............................................................................................. 157
Draining the oil-water separator ....................................................................................................... 159
16 Cleaning station
Overview .......................................................................................................................................... 162
Cleaning the cleaning station blade ................................................................................................. 163
Rotating and replacing the cleaning station blade ............................................................................ 165
Removing the cleaning station ......................................................................................... 165
Installing the cleaning station ........................................................................................... 166
Replacing the sponge roller .............................................................................................................. 167
17 Charge Roller Assembly
Overview .......................................................................................................................................... 172
Charge roller maintenance procedures ............................................................................................ 173
Removing and replacing the charge roller ....................................................................... 173
Replacing the charge roller .............................................................................................. 173
Replacing the carbon brushes ......................................................................................... 174
Cleaning the charge roller ............................................................................................... 175
18 Pre-transfer erase (PTE)
Overview .......................................................................................................................................... 178
Cleaning the PTE ............................................................................................................................ 179
19 Exit Roller
Overview .......................................................................................................................................... 182
Cleaning the exit roller ...................................................................................................................... 183
20 Pre-heater
Overview .......................................................................................................................................... 186
Removing the pre-heater housing .................................................................................................... 187
21 Chiller Operation and Maintenance
Overview .......................................................................................................................................... 190
Chiller type ....................................................................................................................... 190
Warnings .......................................................................................................................................... 191
Operating conditions ........................................................................................................................ 192
Control panel .................................................................................................................................... 193
Components of the control panel ..................................................................................... 193
Control thermostat ........................................................................................................... 194
Maintenance ..................................................................................................................................... 196
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Weekly ............................................................................................................................. 196
Monthly ............................................................................................................................ 196
Yearly ............................................................................................................................... 196
Appendix A Supplies and jigs
Imaging supplies .............................................................................................................................. 198
User maintenance supplies .............................................................................................................. 199
User tools and jigs ............................................................................................................................ 200
General supplies .............................................................................................................................. 201
Accessories ..................................................................................................................... 201
Substrate treatment ......................................................................................................... 201
Appendix B Service and support
Glossary ........................................................................................................................................................... 205
Index ................................................................................................................................................................. 209
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1 About this user guide

Welcome to the HP Indigo 7000 Digital Press. This preface provides an overview of the user guide contents and explains conventions used in this guide.
This preface contains the following sections:
Overview
Conventions used in this guide
ENWW 1

Overview

This user guide assumes that you are familiar with the basic Windows environment and that you have basic Windows skills, such as using a mouse and selecting menu items. If you do not, please see the Windows documentation that came with the computer.
This user guide also assumes that you have participated in the HP Indigo press operator course, and are familiar with the printing process.
The user guide contains the following information:
About this user guide: Provides an overview of the user guide contents and explains conventions
used in this guide.
Product overview: Provides an overview and specifications of the HP Indigo 7000 Digital
Press.
Safety: Provides important safety information for using the HP Indigo 7000 Digital Press.
Operating the press: Provides an overview of press operations basics.
Job handling: Describes the job management and maintenance process on the press.
Color management: Describes the color management and adjustment procedures.
Substrate handling system: Describes loading, unloading, adjustment and maintenance of the
substrate transport system.
Operator routines: Provides an overview and practical tips for performing operator maintenance
routines and mechanical system lubrication.
Ink system: Describes replacement and maintenance of the HP ElectroInk system.
Binary ink developer (BID): Provides BID maintenance and replacement procedures.
Blanket: Describes replacement and maintenance of the blanket.
PIP: Describes PIP replacement procedures.
Impression drum: Describes the impression paper replacement procedure.
Imaging oil: Describes maintenance and replacement procedures for the imaging oil system.
Utility cabinet: Provides utility cabinet maintenance procedures.
Cleaning station: Describes the cleaning station maintenance procedures.
Charge Roller: Describes the charge roller maintenance procedures.
Pre-transfer erase (PTE): Describes PTE maintenance procedures.
Exit roller: Describes exit roller cleaning and maintenance procedures.
Pre-heater: Describes pre-heater element cleaning and housing removal procedures.
Chiller Operation and Maintenance: Provides inspection and maintenance procedures for the
press chiller.
Glossary: Provides definitions of terms used throughout the HP Indigo 7000 Digital Press
documentation set.
2 Chapter 1 About this user guide ENWW
Supplies and jigs: Provides information on the press imaging, maintenance, and general supplies.
Service and support: Provides customer care center service and support contact information.
ENWW Overview 3

Conventions used in this guide

This guide uses the following documentation conventions:
Elements in the graphical user interface (GUI) which you must select or click, are indicated in bold
type, for example: On the File menu, click New.
Other elements in the GUI, such as Window names, appear in italics. For example: After selecting
the options in the Print window, click OK.
References to other sections in the guide appear in quotes, for example: See the “Installation” on
page 37.
4 Chapter 1 About this user guide ENWW

2 Product overview

This chapter contains the following sections:
HP Indigo press
General press specifications
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HP Indigo press

The HP Indigo 7000 Digital Press is a sheet-fed digital offset color press that incorporates the patented HP ElectroInk liquid ink technology and high-speed electronic imaging to produce fully-finished, high­quality color prints. The press features an intuitive and user-friendly interface, provides diagnostic screens that take the guess work out of printing.

HP Indigo 7000 Digital Press

The press consists of five basic elements: the printing engine, ink cabinet, utility cabinet, feeder, and stacker.
Figure 2-1 HP Indigo 7000 Digital Press
1 Printing engine
2 Utility cabinet
3 Stacker
4 Ink cabinet
5 Feeder
6 Chapter 2 Product overview ENWW

Press serial number

The press serial number is on the front of the press behind the front door.
Figure 2-2 Press serial number
7000_PREIPH-1-07
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General press specifications

Printing rate

Input job definition Press productivity
Color
Job type
A4 (1/0) 14,400 7,200
A4 (4/0) 7,200 14,400
A4 (1/1) 7,200 7,200
A4 (4/4) 3,600 14,400
1
1
(number of color separations on side 1 / number of color separations on side 2)
A4 pages/hour Separations/hour (impressions/hour)
Up to seven colors are supported:
Option 1 - four process colors (CMYK - cyan, magenta, yellow, and black), plus 3 spot colors.
Option 2 - HP IndiChrome process (six color process), plus 1 spot color.
8 Chapter 2 Product overview ENWW
3Safety
This chapter contains the following sections:
Overview
Warning signs and labels
Safety devices
Emergency power shutdown
Door interlocks and warning indicators
Attention lights
Maintenance safety and emergency procedures
Combustible and flammable liquids and fumes
ENWW 9

Overview

The safety information and procedures described in this chapter apply to operators and other personnel working on or near the HP Indigo 7000 Digital Press. The safety procedures cover the press and the area immediately surrounding the press.
Use the following guidelines:
The press must only be operated by personnel trained by HP or its authorized agents who are
thoroughly familiar with all the safety and maintenance procedures of the press.
Before you attempt to use the press, read and understand the safety procedures, including
environmental protection procedures.
NOTE: Call a customer care center for service and repair of the press. Do not attempt to service or
repair the press.
The HP Indigo 7000 Digital Press is NRTL approved and marked for use in the USA and Canada.
Notice for the European Union:
This product complies with the following EU directives:
The Low Voltage Directive 2006/95/EC
The Machinery Directives 2006/42/EC
The EMC Directives 2004/108/EC
Compliance with these directives implies conformity to applicable harmonized European standards (European Norms) which are listed on the Declaration of Conformity issued by Hewlett-Packard for this product or product family.
The Declaration of Conformity can be found at www.hp.com/go/certificates
10 Chapter 3 Safety ENWW

Warning signs and labels

Warning labels on the press

The following symbols appear on warning labels on the HP Indigo 7000 Digital Press:
Laser Hazard
DANGER. Invisible laser radiation may be present when doors are open and interlocks are defeated. Avoid direct exposure to beam.
Laser Radiation
The lasers in the press emit radiation in the invisible range. The laser unit in the writing head is enclosed in a protective housing and permits exit of the beam only at the writing head window (aperture) to the PIP. Do not insert or allow any reflective objects to be inserted in the path of the writing head window. Do not attempt to clean the writing head window or look into the writing head window while the unit is operational.
Electrical Hazard
HAZARDOUS VOLTAGE. Will cause severe or fatal injury. Apply Lockout procedure.
Electrical Hazards
Before you start any maintenance procedure that involves an electrically powered subsystem, make sure the subsystem is disconnected. If you are not sure that the subsystem is turned off, turn off the main power switch. Always follow the lockout procedure.
Live Current Hazard Alert
LIVE PARTS. Will cause severe or fatal injury. Apply Lockout procedure.
Entanglement Hazard Alert
WARNING. Open gears and mechanical parts. Can trap hands, fingers, clothing, and cause serious injury. Stay well clear.
Pinch Hazard Alert
WARNING. Pinch points between rollers, wheels, and other parts can trap hands, fingers, clothing, and cause serious injury. Stay well clear.
Mechanical Hazards
The press has a number of rotating parts and gripping devices (drums, gears, grippers, and so on). Exercise special care when performing any maintenance work around these parts. All repairs must be performed only by authorized customer engineers.
Do not climb into the substrate input or substrate exit for any reason. Doing so could be dangerous.
Hot Surface Hazard
WARNING. Hot surface. Can cause burns. Do not touch.
Heat Hazards
ENWW Warning signs and labels 11
The blanket and ITM drum become very hot during normal operation of the press, with temperatures up to 110°C (230°F). Do not touch the ITM drum or external heater with bare hands. Carelessness may cause burns. Wear thermal insulated gloves. Remove old blankets with needlenose pliers.
The following warnings also appear on the press:
CAUTION! To reduce the risk of electric shock, the main disconnect should be locked in the off position before
servicing.
DANGER. Invisible laser radiation may be present when open and interlock defeated. Avoid direct exposure to
WARNING: Hazardous moving parts.
WARNING: Hazardous Voltage. Can cause damage.
WARNING: Hot surface. Can cause burns. Do not touch.
Emergency Stop Button
HIGH LEAKAGE CURRENT: Earth connection essential before connecting supply
MAIN EARTH CONNECTION LOCATED ON MAIN CHASSIS.

Warning signs

Post warning signs that clearly emphasize the dangers involved in operating and maintaining the press. The following warnings are recommended:
This press is to be operated by properly trained and qualified operators only.
Do not wear ties, other loose clothing, or loose jewelry when operating and maintaining the unit.
Flammable vapors from heated imaging oil may be present!
No smoking, open flame, or sources of ignition allowed!
beam.
Make sure that the room is properly ventilated at all times. See the HP Indigo 7000 Digital Press
Site Preparation Guide.
Danger of pinching and crushing from moving press parts!
Keep hands away from moving press parts.
Access to Main Power switch must remain free at all times.
Do not operate the press with doors open.
Ink and imaging oil are irritating to eyes and skin. Use rubber gloves.
ITM drum and blanket are hot.
External heating lamps are hot.
Read and understand the material safety data sheets (MSDS) for consumables used with the press.
12 Chapter 3 Safety ENWW

Placement of warning labels

Warning labels are placed in various locations on the press. Many of the warning labels on the press are behind doors or covers and on parts that may be accessible only to authorized service personnel.
ENWW Warning signs and labels 13

Safety devices

Material safety data sheets (MSDS)

MSDS are supplied for consumables, including the different HP ElectroInks, imaging oil and the imaging agent, adhesion promoters, and adhesion promoter test fluids. Keep the MSDS readily available in the work area. Read and consult them for your personal protection. Keep the MSDS in a protective plastic cover.

Fire extinguishing equipment

The HP Indigo 7000 Digital Press generates combustible fumes and is also internally heated, a danger of fire exists. Take the following precautions:
Position fire extinguishers in visible locations within 7.6 m (25 ft) of the press and any flammable
or combustible material storage areas.
Require regular inspection of the fire extinguishers (at least annually) and have designated
employees trained in their use. Employees should be retrained at least once a year.

Eye wash stations

The HP Indigo 7000 Digital Press uses inks and imaging oil that may be irritating to skin and eyes. In extreme cases of exposure, these may cause blindness. Take the following precautions:
Install eye wash stations within 7.6 m (25 ft) of areas where the ink and imaging oil are handled,
dispensed, or stored.
Provide eye wash liquid at eye wash stations (available from most safety supply companies) that
complies with ANSI standard Z358. 1–1990.
Use safety glasses with side-shields and rubber gloves when handling ink and imaging oil (nitrile
disposable gloves are recommended).

Noise levels

During printing, the operator is exposed to a maximum of 80 dBA of audio noise with all service doors and covers closed.

Heat insulating tools

The blanket, ITM drum, and external heating lamps become very hot during normal operation of the press, with temperatures up to 165°C (355°F). Touching these parts could cause burns. Take the following precautions when you work near the ITM drum or when you are replacing the blanket:
Wait until the drum cools to below 60°C (140°F) before performing maintenance procedures.
Do not place hands on the moving blanket. Use a tool to grip the blanket metal bar.

Electrical safety

The HP Indigo 7000 Digital Press must be properly grounded at all times. Before operating the unit, ensure that it is grounded in conformance with the electrical code standards for your country/region (see the HP Indigo 7000 Digital Press Site Preparation Guide for recommendations). If in doubt, check with a licensed electrician or with your customer care center.
14 Chapter 3 Safety ENWW
WARNING! Do not operate the press if it is not properly grounded. Perform a weekly check of
grounding cables.
If a cable has to be disconnected or reconnected during a maintenance procedure, you must electrically turn off and lockout the press. Turn off the press by using the main power switch.
ENWW Safety devices 15

Emergency power shutdown

The following can turn off all or some electrical power to the press:
Emergency Stop buttons: In an emergency, press one of the red Emergency Stop buttons to
stop all mechanical movement in the main engine.
Red Emergency Stop buttons on a yellow background are located at both sides of the front door, and in other prominent locations on the press. When pressed, the button stops the press, and turns off electrical power to most system components.
To turn off power: press the button down.
To restore power: rotate the button clockwise to release.
CAUTION: Some press components continue to receive power after an Emergency Stop button is
pressed.
NOTE: Pressing an Emergency Stop button during printing can cause damage to the PIP and blanket.
Figure 3-1 Emergency Stop button on right and left sides of front door
16 Chapter 3 Safety ENWW
Figure 3-2 Emergency Stop button behind rear utility cabinet door
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Main supply disconnect switch: The main supply disconnect switch is permanently connected to the press via a conduit. A lockable disconnect device incorporated in the fixed wiring must be readily accessible. The device must be rated according to the specifications shown in the HP Indigo 7000 Digital Press Site Preparation Guide. This is an isolating device, which can be locked in the Off position to avoid an unexpected startup or release of electrical power during servicing or maintenance.
Main power switch: The main power switch is located at the rear of the press. Access the main
power switch through the opening near the rear door. Raise the switch cover. Rotate the main power switch to the left position to turn off all electrical power to the press engine.
Figure 3-3 Main power switch
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7
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1 Rear utility cabinet door
2 Main power switch at exit side, behind stacker unit
3 Stacker unit
4 Switch cover
3
4
ENWW Emergency power shutdown 17
CAUTION: Always maintain free access to the main power switch, so that power can be immediately
turned off in an emergency.
The main power switch does not disconnect power to the power distribution unit (PDU).
Power Enable switch: The Power Enable switch is located on the upper left side of the press. The
switch turns off power to the press engine subsystems, except for the computer and ink cabinet. To turn off power, put the Power Enable switch in the off position. To restore power, put the Power
Enable switch in the on position.
Figure 3-4 Power Enable switch
18 Chapter 3 Safety ENWW

Door interlocks and warning indicators

Door interlocks

The HP Indigo 7000 Digital Press has interlocked doors and covers that stop the press and turn off electrical power to system devices when these doors and covers are opened.
WARNING! Access to, and use of bypass keys is restricted to specifically trained and authorized
personnel. Do not disconnect or override any of these safety devices.
The following doors and covers are interlocked:
Stacker Printing engine Feeder
• Stacker top cover • Upper feed door • Feeder drawers
• Stacker front door • Lower feed door • Feeder upper feed door
• Ink cabinet door (disables air compressor to ink cans only)
• Front door • Feeder vertical access door
• Bridge
Cleaning ECN door
• External heater cover
• Rear utility cabinet door
• Feeder to cover frame
If any of the doors or covers are opened, the interlock is activated and prevents operation of most devices, such as the high-voltage power supply and the main motor. Opening a feeder door will not turn off power to all parts of the feeder.
When you open an interlocked door :
The press status changes to Off.
The schematic illustration indicates that the door is open,
All opened interlocked doors and covers are indicated by• an open lock icon in the user interface.
ENWW Door interlocks and warning indicators 19
Figure 3-5 Press schematic showing open interlock doors
20 Chapter 3 Safety ENWW

Attention lights

Attention lights are located on the input and exit sides of the printing engine.
Figure 3-6 Attention lights
Attention lights consist of three colors that indicate the following when lit:
Green light:
Always on in Ready state
Flashing in Printing and Getting Ready states
Yellow light:
Always on for all errors and for warning LEDs
Warnings flagged:
An ink can is empty
Conductivity in one ink tank is high/low
Color adjustment is needed
Print cleaner is needed
Cooler drain is almost full
Stacker is 90% full
Only 10% of substrate is left in the feeder
Red light:
Flashing when the bypass key is inserted, and a buzzer will sound before the press starts to
rotate.
ENWW Attention lights 21
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