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Epson ET-3750 Users Guide - Page 212

Solving Scanned Image Quality Problems, Image Consists of a Few Dots Only

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Parent topic: Solving Scanning Problems Related topics Starting a Scan Solving Scanned Image Quality Problems Check these sections if a scanned image on your computer screen has a quality problem. Image Consists of a Few Dots Only Line of Dots Appears in All Scanned Images Straight Lines in an Image Appear Crooked Image is Distorted or Blurry Image Colors are Patchy at the Edges Image is Too Dark Back of Original Image Appears in Scanned Image Ripple Patterns Appear in an Image Scanned Image Colors Do Not Match Original Colors Scanned Image Edges are Cropped Parent topic: Solving Problems Image Consists of a Few Dots Only If your scanned image consists only of a few dots, try these solutions: • Make sure you placed your original for scanning facing the correct way. • If the Image Type setting is Black & White, adjust the Threshold and scan again. Parent topic: Solving Scanned Image Quality Problems Line of Dots Appears in All Scanned Images If a line of dots appears in all your scanned images, clean the scanner glass with a soft, dry, lint-free cloth or use a small amount of glass cleaner on the cloth, if necessary. Paper towels are not recommended. Caution: Do not spray glass cleaner directly on the scanner glass. If you are scanning from the ADF, try cleaning the ADF and scan again. Parent topic: Solving Scanned Image Quality Problems 212

Section	Page
Contents	3
Product Basics	12
Using the Control Panel	12
Control Panel Buttons and Lights	13
Status Icon Information	14
Entering Characters on the LCD Screen	15
Changing LCD Screen Language	15
Adjusting the Screen Brightness	16
Turning Off the Operation Time Out Setting	17
Product Parts Locations	18
Product Parts - Front	19
Product Parts - Inside	21
Product Parts - Back	23
Using Power Saving Settings	23
Changing the Sleep Timer Settings	23
Changing the Power Off Timer Settings	25
Epson Connect Solutions for Smartphones, Tablets, and More	26
Setting Up Epson Connect Services	26
Using Epson Email Print	28
Using the Epson iPrint Mobile App	29
Using Epson Remote Print	29
Using Epson Scan to Cloud	30
Using AirPrint	31
Using Google Cloud Print	31
Android Printing Using the Epson Print Enabler	32
Using Fire OS Printing	33
Using Windows 10 Mobile Printing	33
Using Epson Print and Scan App with Windows Tablets	34
Wi-Fi or Wired Networking	35
Network Security Recommendations	35
Wi-Fi Infrastructure Mode Setup	36
Selecting Wireless Network Settings from the Control Panel	37
Wi-Fi Direct Mode Setup	39
Enabling Wi-Fi Direct Mode	39
Wi-Fi Protected Setup (WPS)	41
Using WPS to Connect to a Network	41
Printing a Network Status Sheet	42
Printing a Network Connection Report	43
Network Connection Report Codes and Messages	45
Changing or Updating Network Connections	50
Accessing the Web Config Utility	50
Changing a USB Connection to a Wi-Fi Connection	51
Changing a Wi-Fi Connection to a Wired Network Connection	51
Connecting to a New Wi-Fi Router	52
Disabling Wi-Fi Features	52
Loading Paper	54
Loading Paper in the Cassette	54
Paper Loading Capacity	59
Double-sided Printing Capacity	60
Compatible Epson Papers	61
Borderless Paper Type Compatibility	62
Paper or Media Type Settings - Printing Software	63
Selecting the Paper Settings - Control Panel	64
Paper Type Settings - Control Panel	64
Selecting the Default Paper Source Settings	65
Paper Source Settings Options	66
Placing Originals on the Product	68
Placing Originals on the Scanner Glass	68
Placing Originals in the Automatic Document Feeder	69
ADF Original Document Specifications	71
Copying	73
Copying Documents or Photos	73
Copying Options	74
Printing from a Computer	76
Printing with Windows	76
Selecting Basic Print Settings - Windows	77
Print Quality Options - Windows	79
Multi-Page Printing Options - Windows	79
Selecting Double-sided Printing Settings - Windows	80
Double-sided Printing Options - Windows	82
Print Density Adjustments - Windows	83
Selecting Additional Layout and Print Options - Windows	84
Custom Color Correction Options - Windows	86
Image Options and Additional Settings - Windows	87
Header/Footer Settings - Windows	88
Selecting a Printing Preset - Windows	89
Selecting Extended Settings - Windows	90
Extended Settings - Windows	91
Printing Your Document or Photo - Windows	92
Locking Printer Settings - Windows	93
Locked Setting Options	95
Selecting Default Print Settings - Windows	96
Changing the Language of the Printer Software Screens	97
Changing Automatic Update Options	98
Printing with the Built-in Epson Driver - Windows 10 S	99
Selecting Print Settings - Windows 10 S	99
Printing on a Mac	103
Selecting Basic Print Settings - Mac	104
Print Quality Options - Mac	107
Print Options - Mac	107
Selecting Page Setup Settings - Mac	108
Selecting Print Layout Options - Mac	109
Selecting Double-sided Printing Settings - Mac	110
Double-sided Printing Options and Adjustments - Mac	111
Managing Color - Mac	112
Color Matching and Color Options - Mac	113
Selecting Printing Preferences - Mac	114
Printing Preferences - Mac	115
Printing Your Document or Photo - Mac	115
Checking Print Status - Mac	117
Printing From a Chromebook	117
Cancelling Printing Using the Product	118
Scanning	119
Starting a Scan	119
Starting a Scan Using the Product Control Panel	119
Scanning to a Connected Computer	120
Setting Up a WSD Port (Windows 7/Windows Vista)	123
Control Panel Scanning Options	123
Changing Default Scan Job Settings	125
Starting a Scan Using the Epson Scan 2 Icon	125
Starting a Scan from a Scanning Program	127
Starting a Scan from a Smart Device	129
Scanning in Epson Scan 2	130
Additional Scanning Settings - Main Settings Tab	133
Additional Scanning Settings - Advanced Settings Tab	133
Saving Scanned Documents as a Searchable PDF Using Epson Scan 2	134
Image Format Options	135
Scan Resolution Guidelines	136
Refilling Ink	138
Ink Safety Precautions	138
Check Ink Levels	140
Checking Ink Levels on Your Product	140
Checking Ink Levels - Windows	141
Checking Ink Levels - Mac	142
Disabling Special Offers with Windows	144
Purchase Epson Ink and Maintenance Box	145
Ink Bottle and Maintenance Box Part Numbers	145
Refilling the Ink Tanks	145
Maintenance Box Replacement	150
Adjusting Print Quality	152
Print Head Maintenance	152
Print Head Nozzle Check	152
Checking the Nozzles Using the Product Control Panel	153
Checking the Nozzles Using a Computer Utility	155
Print Head Cleaning	156
Cleaning the Print Head Using the Product Control Panel	157
Cleaning the Print Head Using a Computer Utility	158
Power Cleaning	161
Power Cleaning Using the Product Control Panel	161
Power Cleaning Using a Computer Utility	162
Print Head Alignment	164
Aligning the Print Head Using the Product Control Panel	164
Cleaning the Paper Guide	166
Cleaning the Print Head Path	167
Checking the Number of Sheets	169
Checking the Sheet Counter - Windows	169
Checking the Sheet Counter - Mac	170
Cleaning and Transporting Your Product	172
Cleaning Your Product	172
Cleaning the Paper Rollers	174
Transporting Your Product	177
Solving Problems	181
Checking for Software Updates	181
Product Status Messages	182
Message Appears Prompting You to Reset Ink Levels	184
Running a Product Check	185
Resetting Control Panel Defaults	186
Solving Setup Problems	187
Noise After Filling the Ink	188
Software Installation Problems	188
Control Panel Setup Problems	188
Solving Network Problems	189
Product Cannot Connect to a Wireless Router or Access Point	189
Network Software Cannot Find Product on a Network	191
Product Does Not Appear in Mac Printer Window	192
Wireless Network Connection is Unstable on a Mac	192
Cannot Print Over a Network	193
Cannot Scan Over a Network	194
Solving Copying Problems	195
Product Makes Noise, But Nothing Copies	195
Product Makes Noise When It Sits for a While	195
Solving Paper Problems	195
Paper Feeding Problems	196
Paper Jams Inside the Product	196
Paper Ejection Problems	197
Solving Problems Printing from a Computer	197
Nothing Prints	197
Product Icon Does Not Appear in Windows Taskbar	198
Printing is Slow	199
Solving Page Layout and Content Problems	200
Inverted Image	201
Too Many Copies Print	201
Blank Pages Print	201
Incorrect Margins on Printout	202
Border Appears on Borderless Prints	202
Incorrect Characters Print	203
Incorrect Image Size or Position	203
Slanted Printout	204
Solving Print Quality Problems	204
White or Dark Lines in Printout	205
Blurry or Smeared Printout	206
Faint Printout or Printout Has Gaps	207
Grainy Printout	208
Incorrect Colors	209
Solving Scanning Problems	210
Scanning Software Does Not Operate Correctly	210
Cannot Start Epson Scan 2	211
Solving Scanned Image Quality Problems	212
Image Consists of a Few Dots Only	212
Line of Dots Appears in All Scanned Images	212
Straight Lines in an Image Appear Crooked	213
Image is Distorted or Blurry	213
Image Colors are Patchy at the Edges	213
Image is Too Dark	214
Back of Original Image Appears in Scanned Image	214
Ripple Patterns Appear in an Image	214
Scanned Image Colors Do Not Match Original Colors	215
Scanned Image Edges are Cropped	215
Uninstall Your Product Software	215
Uninstalling Product Software - Windows	215
Uninstalling Product Software - Mac	217
Where to Get Help	217
Technical Specifications	219
Windows System Requirements	219
Mac System Requirements	220
Paper Specifications	220
Printable Area Specifications	222
Scanning Specifications	223
Automatic Document Feeder (ADF) Specifications	224
Ink Specifications	224
Dimension Specifications	225
Electrical Specifications	225
Environmental Specifications	226
Interface Specifications	226
Network Interface Specifications	226
Safety and Approvals Specifications	227
Notices	229
Important Safety Instructions	229
General Product Safety Instructions	229
Wireless Connection Safety Instructions	231
LCD Screen Safety Instructions	231
FCC Compliance Statement	232
Binding Arbitration and Class Waiver	232
Trademarks	236
Copyright Notice	236
libTIFF Software Acknowledgment	237
A Note Concerning Responsible Use of Copyrighted Materials	237
Default Delay Times for Power Management for Epson Products	238

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Solving Scanning Problems