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Epson ColorWorks C7500 Technical Reference Guide - Page 22

Nozzle Verification Technology

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Nozzle Verification Technology This product has an "Nozzle Verification Technology" that detects missing dots. You can select the "Nozzle Verification Technology Enable / Disable", "Nozzle check interval" and/or "Threshold of clogged nozzles", depending on level of requirement for missing dots. And when unrecoverable clogging occurs, this printer is able to carry out supplemental printing using a nearby nozzle. If you set "Enable" for the nozzle clog auto supplement system, it will be possible to remedy a marked fall in print quality and barcode quality due to an irrecoverably clogged nozzle. Setting the Nozzle Verification Technology If you set "Enable" for the Nozzle Verification Technology, in the cases described below or every time the number of printed copies in "Setting Nozzle check interval" has been reached, an auto nozzle check will be performed.  Starting a printing job or per printed sheets specified in the interval of Nozzle check interval  Power is turned ON  The maintenance box cover is closed  The roll paper cover or paper set cover is closed after a paper jam. If the number of nozzle dropouts that is detected exceeds the "Threshold of clogged nozzles" that you have set, auto head cleaning will be executed to eliminate dot dropout. Perform a nozzle check even after auto cleaning, and if the number of dropouts does not fall below the set "Threshold of clogged nozzles", perform auto cleaning again. CAUTION This Nozzle Verification Technology cannot detect 100% of dot missing cases. It cannot detect 100% of missing dots and ink droplet curvature.  Print head maintenance is executed for all heads simultaneously. It is not executed only for the heads and ink in which nozzle clogging was detected.  The Nozzle Verification Technology uses a small amount of ink.  After detecting a missing dot, cleaning is performed automatically and ink is also used in the cleaning. 22

Section	Page
For Safety	3
Key to Symbols	3
Cautions on Installation	3
Cautions on Power Supply	4
Cautions on Handling	5
Cautions on the Ink Cartridge / Maintenance box	6
Caution Label	7
Restriction of Use	8
About this Manual	9
Aim of the Manual	9
Manual Content	9
Contents	10
Product Overview	15
Features	15
Printing	15
Operability	16
Reliability	16
Easy setup	16
How to Print	16
Other Features	17
Part Names and Functions	18
Front Side	18
Operation Panel	19
Rear Side	21
Nozzle Verification Technology	22
Setting the Nozzle Verification Technology	22
Dot substitution	24
Periodic auto cleaning	25
Status/Error Indications	26
Ink Cartridge and Maintenance Box Status	30
Beeper	31
Reprint	32
Setup	33
Install Navi	34
Work flow to set up this product without using the Install Navi	35
Checking the Items Included in the Package	36
Installing the Printer	37
Location Appropriate for Installation	38
Connecting the Power Cable	39
Connecting the Interface Cable	40
Turning On/Off	41
Turning On	41
Turning Off	41
Installing the Ink Cartridge	42
Installing the Maintenance box	46
REWINDER	49
How to install the REWINDER	49
Removing the rewinder	50
Attaching the paper leading edge to the rewinder	50
Setting the Paper	52
Setting the Roll Paper	52
Setting the Fanfold Paper	60
How to eject paper for paper replacement	61
Ejection Angle of Printed Paper	62
Printer settings	63
Language Setting	63
Time Setting	64
Network settings	65
Paper settings	67
Set using a printer driver	67
Setting using the PrinterSetting	70
Setting with the operation panel	73
Test printing	74
Test Printing	75
How to Display the Printer Driver	76
Handling	77
List of printer setting items	77
Setting panel switch	80
Printing the status sheet (Network settings)	84
Favorite	85
Cutting the Incomplete Label	86
PrinterSetting	87
Starting the PrinterSetting	88
Apply settings	90
Media settings	91
Layout settings	92
Position adjustment	94
Print results adjustment	96
Store data in the printer	97
Background image settings	98
Print head maintenance	100
Printer settings	101
Panel settings	102
Nozzle check settings	103
Advanced settings	104
Initialize printer	108
Printer information	109
Settings save and restore	111
Option	112
Setting the Printer Driver	113
Favorite Setting	113
User Defined Information	116
Exporting/ Importing Printer Driver Settings	116
Barcode Printing	119
2D symbol Printing	129
Barcode and 2D Symbol Font Printing on .NET Environment	136
Banding Reduction	138
Start the PrinterSetting from the printer driver.	139
Setting EPSON Status Monitor 3	140
Restricted items of printer drivers	146
EpsonNetConfig (Web version)	147
Setting the label size and paper layout for borderless printing	151
Borderless Printing Concepts	151
Label Media Design	152
Borderless Printing Settings	152
USB Printer Class Device Replacement Service	157
Uninstallation of USB Printer Class Device Replacement Service	157
Restrictions in USB Printer Class Device Replacement Service	158
Setting the Dip Switches	159
Setting Procedure	159
Cleaning the Printer	160
Cleaning the autocutter	160
Cleaning the Internal Parts (Platen)	161
Cleaning the Internal Parts (Paper Path)	162
Cleaning the Printer Case	163
Long-term Storage of the Product After Ink Charging	164
Storing the product	164
Restart the printer after long-term storage	165
Precautions when transporting	166
Troubleshooting	167
Error Processing	167
Warning Processing	171
Printer Driver	172
Poor print quality	173
Unclean media	176
Dirt inside the printer	176
Printable area	176
Detection failure	177
Continuous printing cannot be performed	178
External supply	178
Paper is jammed	179
Application Development Information	183
How to Control the Printer	183
Using label printing application	183
Using the Epson Inkjet Label Printer SDK	184
Using the ESC/Label commands	184
Changing Printer Settings and Replacing the Printer	184
Software and Manuals	190
Installing software	192
Software installation procedures	192
Appendix	195
Product Specifications	195
Operating Environment	197
Printing Specifications	198
Paper Specifications	199
Paper detection method	206
Print Area and Cutting Position	207
Electrical Characteristics	217
Reliability	218
Environmental Conditions	219
External Dimensions	220
Consumable Product Specifications	223
Ink Cartridge	223
Maintenance Box	223
Option Specifications	224
Rewinder (TU-RC7508)	224
LCD Display Specifications for the Number of Printed Copies	225
Display While Printing	225
Error Display While Printing	225
Display When the Number of Printed Copies is Carried Up to 8 digits	225
Downloading Drivers, Utilities, and Manuals	226
Media detector and paper path settings when using label printing applications	227
Changing the media detector settings in BarTender	228
Changing the paper path settings in BarTender	230
Changing the media detector settings in NiceLabel	231
Changing the paper path settings in NiceLabel	233
Changing the media detector settings in CODESOFT	234
Changing the paper path settings in CODESOFT	235
Changing the media detector settings in Loftware Spectrum	236
Changing the paper path settings in Loftware Spectrum	237
Changing the media detector settings in Loftware Print Server	238
Changing the paper path settings in Loftware Print Server	240

Match case Limit results 1 per page

Nozzle Verification Technology

This product has an “Nozzle Verification Technology” that detects missing dots. You can select the “Nozzle Ver-

ification Technology Enable / Disable”, “Nozzle check interval” and/or “Threshold of clogged nozzles”, depend-

ing on level of requirement for missing dots.

And when unrecoverable clogging occurs, this printer is able to carry out supplemental printing using a nearby

nozzle.

If you set “Enable” for the nozzle clog auto supplement system, it will be possible to remedy a marked fall in

print quality and barcode quality due to an irrecoverably clogged nozzle.

Setting the Nozzle Verification Technology

If you set “Enable” for the Nozzle Verification Technology, in the cases described below or every time the num-

ber of printed copies in “Setting Nozzle check interval” has been reached, an auto nozzle check will be per-

formed.



Starting a printing job or per printed sheets specified in the interval of Nozzle check interval



Power is turned ON



The maintenance box cover is closed



The roll paper cover or paper set cover is closed after a paper jam.

If the number of nozzle dropouts that is detected exceeds the “Threshold of clogged nozzles” that you have set,

auto head cleaning will be executed to eliminate dot dropout.

Perform a nozzle check even after auto cleaning, and if the number of dropouts does not fall below the set

“Threshold of clogged nozzles“, perform auto cleaning again.

CAUTION

This Nozzle Verification Technology cannot detect 100% of dot missing cases.

It cannot detect 100%

of missing dots and ink droplet curvature.



Print head maintenance is executed for all heads simultaneously.

It is not executed only for the

heads and ink in which nozzle clogging was detected.



The Nozzle Verification Technology uses a small amount of ink.



After detecting a missing dot, cleaning is performed automatically and ink is also used in the clean-

ing.