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Konica Minolta MGI JETvarnish 3D One MGI JETvarnish 3D One User Manual - Page 26

Dithering mode

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JETVARNISH 3D One The print speed table is using the following assumptions: • Gap between two sheets = 10 cm when arriving on the printing belt • Sheet size (L x w) = A3 landscape = 29.7 x 42 cm NOTE: Printing speeds are given as an indicative information and may vary according to printing substrate, number of drops set on the data file and under full operator responsibility. You will notice that the current JETVARNISH 3D ONE has two technical limits. The upper limit where the JETVARNISH 3D ONE cannot go faster than 0.3 meter per second. The lower limitation where the JETVARNISH 3D ONE cannot go slower than 0.05 meter per second. With the JETVARNISH 3D ONE, it is not possible to print in less than 3 drops, equivalent to 21 µm of varnish thickness. Only the dithering mode can enable this by using a halftoning technique. It allows spraying less varnish, but the substrate and the CYMK ink should support this low varnish coverage. Dithering mode When using the dithering mode, this never influences the speed of the JETvarnish. It remains at the speed corresponding to the original thickness sets in the JVTi. It is only acting on the varnish image creation using MGI algorithms. Examples:  A3 print speed @ 21 µm without dithering = 2,077 A3/hour  A3 print speed @ 21 µm with dithering and areas at 33% of grey level = 2,077 A3/hour for a theoretical thickness of 7 µm User Manual - 26 -

Section	Page
1 Revision History	6
1.1 JETVARNISH 3D One Generations	7
1.2 Serial Number Identification	7
2 Conventions and remarks about this document	8
2.1 Conventions	8
2.2 Symbols used in this manual	9
2.3 Colors used in the CAD/CAM drawings	9
3 Security and Safety Rules	10
3.1 Safety and important warning items	10
3.2 Outline	10
3.3 Important notices	10
3.4 Security signs affixed on the equipment	11
3.4.1 Descriptions for safety and important warning items	11
3.5 Emergency stop button locations	13
3.6 Safety & warning label locations – Operator Side [O.S]	14
3.7 Safety & warning label locations – Maintenance Side [M.S]	16
3.8 Safety & warning label locations – Top view	17
3.9 Beacon	18
3.10 JETVARNISH 3D One Safety Instructions	20
3.11 LED Flashlights used nearby the UV Printheads	22
4 JETVARNISH 3D One Specifications and Configurations	23
4.1 Machine specifications	23
4.2 Production speeds	25
4.3 Machine configurations	27
4.4 Working Conditions	30
4.4.1 Installation	30
4.4.2 Electrical Tension	30
4.4.3 Temperature & Humidity	30
4.4.4 Sun	30
4.4.5 Workplace	30
4.4.6 Storage	30
4.4.7 Precautions when handling varnish	31
4.4.8 Precautions against the UV rays	31
4.4.9 Internet Access	32
4.4.10 Prohibition of the Use of Expired Consumable	32
4.4.11 Fire protection	32
4.4.12 Running the machine	32
4.4.13 JETVARNISH 3D ONE varnish	33
4.4.14 Noise emissions	33
4.4.15 Risk of sliding. stumbling of fall	33
5 Overall Descriptions	34
5.1 The Paper Feeder module	35
5.1.1 Paper Feeder	35
5.1.2 Monitor	35
5.1.3 The Pilot	36
5.1.4 The Performance Workstation	36
5.1.5 VDP camera option	36
5.2 The Printer module	37
5.2.1 Inkjet cabinet	37
5.2.2 Dryer cabinet	37
5.2.3 AIS SmartScanner	37
5.2.4 Lighting option	38
5.2.5 Paper Exit tray	38
5.3 Automatic PDF converter (option)	38
5.4 Digital hot foiling – iFOIL One module (option)	40
5.5 Corona Treatment – CTS S module (option)	41
6 Functional descriptions	42
6.1 The Paper Feeder Type 1	42
6.1.1 Specifications	44
6.1.2 Description of main components	45
6.1.2.1 Global views	45
6.1.2.2 Paper Feeder main components	46
6.1.3 Operating instructions	53
6.1.3.1 Loading a new paper pile	53
6.1.4 Paper Feeder settings through the JVTi interface	56
6.1.4.1 Feeder tab	56
6.2 The Paper Feeder Type 2	58
6.2.1 Description of main components	59
6.2.1.1 Global views	59
6.2.1.2 Paper Feeder main components	61
6.2.1.3 Feeding principle	63
6.2.2 Paper Feeder specifications	64
6.2.3 Paper adjustment components	65
6.2.4 Mouse, keyboard and operator panel buttons	67
6.2.5 Paper Feeder Control panel	68
6.2.6 The USB port	71
6.2.7 Operating instructions	71
6.2.8 Paper Feeder settings through the JVTi interface	76
6.2.8.1 The Feeder tab	76
6.2.8.2 Usual and most common settings	78
6.2.8.3 Paper Jam	80
6.3 The Paper Exit Tray Type 1	83
6.3.1 Paper Exit Tray main components	84
6.3.2 Paper Exit Tray/Stacker settings through the JVTi interface	89
6.4 The Paper Exit Tray Type 2 & 2.1	90
6.4.1 Paper Exit Tray main components	91
6.4.2 Paper Exit Tray/Stacker settings through the JVTi interface	94
6.4.3 Paper Exit Tray main components	97
7 MGI software & graphical user interfaces	102
7.1 Advices about your Cyber Security	102
7.2 MGI Software Suite	103
7.3 JVTI – Graphical User Interface	104
7.3.1 STARTING UP THE JVTi	104
7.3.2 LOGON STRUCTURE	105
7.4 The Pilot – Graphical touch screen interface	108
7.4.1 How to access it	108
7.4.2 Pilot Main screen or Home screen	110
7.4.2.2 Symbolic varnish circuit diagram	111
7.4.2.3 System Information screen	112
7.4.2.4 Machine parameter screen	113
7.4.2.5 Printheads maintenance screen	114
7.4.2.6 Disable/Enable buzzer	115
7.4.2.7 Technical menu	115
7.4.2.8 Consumables life	116
8 Installing the Consumables	122
8.1 Installation of the containers	122
[1] Varnish container	122
[2] Waste container	122
[3] Cleaning agent container (flush)	122
1.1.1 Cleaning agent container	123
8.1.2 Waste container	124
8.1.3 Varnish container	125
1. Varnish container	126
2. Waste container	126
3. Cleaning agent container (flush)	126
9 Varnish container	128
9.1 Intake pipe settings	129
9.1.1 Angle setting	129
10 Varnish registration procedure	131
10.1 Purpose of the registration	131
10.2 Varnish Registration Procedure	133
11 Starting up & shutting down procedures	136
11.1 Procedure details	136
11.2 Starting up	137
11.3 Shutting down	140
11.3.1 Closing the JVTi	140
11.3.2 Print head Cleaning	141
[1] Start the cleaning	141
[2] Switch off the ON/OFF 24V ② and press on the emergency button ①	142
[3] Shutdown the computer once you have finished, to close everything on it	142
[4] Wait for the machine extinction	143
12 How to run a production	144
12.1 Printable areas and Q-Zone	144
12.2 How to use the JVTi	145
12.2.1 Main menu	145
12.3 Standard conditions	149
12.4 Print menu	151
12.4.1 Position tab	153
12.4.2 Quality Tab	155
12.4.3 The dithering function in details	157
12.4.4 How to activate the Dithering function?	161
12.4.5 Machine settings	162
12.4.5.1 Summary of settings	162
12.4.5.2 Overview tab	163
12.4.5.3 Feeder tab	164
12.4.5.4 Printer tab	164
12.4.5.5 Curing tab	166
12.4.6 Monitoring screen	167
12.4.7 Machine start button	168
12.5 Printing summary	169
12.5.1 Summary window	169
12.6 History	169
12.7 Supervision menu	173
1.1.1 Bar chart	174
12.7.1 Pie chart	175
12.7.2 Excel export	176
12.8 Settings menu	177
12.8.1 General settings tab	177
12.8.2 VDP settings	178
12.8.3 AIS settings tab	179
12.8.4 PF settings tab	180
12.8.5 About/information tab	181
12.9 Cost Calculator	182
12.10 The MGI Spot Varnish Editor	185
12.11 Remote access	190
12.12 Automatic cleaning of the print heads	191
[1]	191
Print heads selectionYou can select the entire print head by clicking on the / icon. You can also select or deselect individually / a print head by clicking on its icon.	191
[2]	191
Cleaning maintenance selection	191
[3]	194
Depressurization displayThe actual and standard value of depressurization into the Air/Varnish circuit.//	194
[4]	194
Starting and Stopping button//	194
[5]	194
Close icon/	194
13 The Pilot interface	195
13.1 Pilot Error Screens	195
13.1.1 Graphical conventions	195
13.1.2 Errors from E533 to E563	195
13.1.3 Errors from E564 to E575	196
13.1.4 Errors from E578 to E581	197
14 MGI AIS SmartScanner System	198
15 Linear or coaxial lighting?	199
15.1 Linear lighting	199
15.2 Coaxial lighting	200
16 Working method with the JETVARNISH 3D ONE	202
17 Wettability & dyne level	208
17.1 What is the “dyne level”?	208
17.2 Dyne level (wettability)	208
17.3 Dyne pen results	209
18 Periodical Maintenance	210
18.1 Operator cleaning table	210
18.2 Cleaning the print heads	211
18.3 JETvarnish containers & possible error	213
18.4 Printing belt cleaning	215
18.5 Cleaning of the top cell reflectors	216
[1] Printing belt	216
[2] Reflector	216
19 Troubleshooting	218
19.1 Error codes	218
19.2 Abnormal images or Communication error troubleshooting	222
19.3 Other error messages	226
19.4 Jam procedure	227
19.4.1 Jam detection principle	227
19.4.2 How to remove jam substrate	229
19.5 Emergency stop procedure	230
19.6 Power failure procedure	232
19.7 File troubleshooting	233
19.7.1 Image size	233
19.7.2 Colors	233
19.7.3 Bits per pixels	233
19.7.4 Resolution	233
19.8 Varnish image troubleshooting	234
19.8.1 Problem 1 - Varnish spreads on the print. which renders the text and designs excessively bold	234
19.8.1.1 Explanation	234
19.8.1.2 Solution	234
19.8.2 Problem 2 - Lines or bumps appear on the print	235
19.8.2.1 Explanation	235
19.8.2.2 Solution	235
19.8.3 Problem 3 - Dots appear in varnish	235
19.8.3.1 Explanation	235
19.8.3.2 Solution	235
19.8.4 Problem 4 - Lines are present on the print page at a given position	236
19.8.4.1 Explanation	236
19.8.4.2 Solution	236
19.8.5 Problem 5 - More and more lines are present on the print	237
19.8.5.1 Explanation	237
19.8.5.2 Solution	237
19.8.6 Problem 6 - Varnish \	237
19.8.6.1 Explanation	237
19.8.6.2 Solution	237
19.8.7 Problem 5 - Varnish \	238
19.8.7.1 Explanation	238
19.8.7.2 Solution	238
19.9 Too dark or too light image – metallized substrate	239
20 Glossary	240
21 Appendix	243
21.1 EC Declaration of Conformity – JETVARNISH 3D One	243
21.2 EC Declaration of Conformity – Universal Feeder	244

Match case Limit results 1 per page

JETVARNISH 3D One

User Manual

- 26 -

The print speed table is using the following assumptions:

•

Gap between two sheets = 10 cm when arriving on the printing belt

•

Sheet size (L x w) = A3 landscape = 29.7 x 42 cm

NOTE: Printing speeds are given as an indicative information and may vary according to printing

substrate, number of drops set on the data file and under full operator responsibility.

You will notice that the current JETVARNISH 3D ONE has two technical limits. The upper limit where the

JETVARNISH 3D ONE cannot go faster than 0.3 meter per second. The lower limitation where the

JETVARNISH 3D ONE cannot go slower than 0.05 meter per second.

With the JETVARNISH 3D ONE, it is not possible to print in less than 3 drops, equivalent to 21 µm of

varnish thickness. Only the dithering mode can enable this by using a halftoning technique. It allows

spraying less varnish, but the substrate and the CYMK ink should support this low varnish coverage.

Dithering mode

When using the dithering mode, this never influences the speed of the JETvarnish. It remains at the

speed corresponding to the original thickness sets in the JVTi. It is only acting on the varnish image

creation using MGI algorithms.

Examples:



A3 print speed @ 21 µm without dithering = 2,077 A3/hour



A3 print speed @ 21 µm with dithering and areas at 33% of grey level = 2,077 A3/hour for a

theoretical thickness of 7 µm