Service manual

2.1OPERATING PRINCPLES - OVERVIEW
Thissectiondescribestheoperatingprinciplesoftheprintermechanismandtheelectricalcircuitsofthe
Stylus Pro.
2.2OPERATINGPRINCIPLES OFTHEPRINTERMECHANISM
2.2.1Principlesof thePrintingOperation
TheprintingmechanismfortheStylusProXL+hasadrop-on-demandinkjetsystem,similartothesystemin
allotherEPSONinkjetprinters.TheStylusProXL+printerusestheMicroDotprintingfunctionbothwith
blackinkandsuper720dpicolorprinting.ThetypeofMicroDotprintingtheStylusProXL+performsisthe
sameasisavailableintheStylusCOLORIIandStylusCOLORIIs/820.However,withthoseprinters,
MicroDotprintingisavailableforprintingwithblackinkonly.TheMicroDotprintingmodecanbeselected
automaticallywith720dpiprintingqualityusing theprinter driversettingsdescribed inthefollowingtable.
Table 2-1.Special Printing Mode
Paper Type Print Density (DPI) Print Mode
NormalPaper
360 NormalDotPrinting
H —720×
V— 360
EPSON Micro Dot Printing
EPSON Premium Paper
for 360dpi
360 NormalDotPrinting
H— 720×
V— 360
EPSON Micro Dot Printing
EPSON Premium Paper
for 720dpi
720 EPSON Micro Dot Printing
Labelsfor720dpi 720 EPSON Micro Dot Printing
High Quality Glossy
Card Stock
720 EPSON Micro Dot Printing
HighQualityGlossy Paper 720 EPSON Micro Dot Printing
Transparencyfilm 360 NormalDotPrinting
MicroDotprintingmodecanimproveoutputquality,becauseiteliminatesbandingthatcansometimesoccur
innormalmode.ThedotsizeinEPSONMicroDotPrintingmodeissmallerthanthedotsizeinnormal
printing.Normalprintmodeis mainly usedin resolutionsof360 dpior less.
Stylus Pro XL+ Service Manual Operating Principles
Rev.A 2-1