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Epson ET-3843 Users Guide - Page 258

Characters are Not Recognized During Conversion to Editable Text (OCR), Text Enhancement

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Scanned Image Colors Do Not Match Original Colors Printed colors can never exactly match the colors on your computer monitor because printers and monitors use different color systems: monitors use RGB (red, green, and blue) and printers typically use CMYK (cyan, magenta, yellow, and black). Check the color matching and color management capabilities of your computer, display adapter, and the software you are using to see if they are affecting the palette of colors you see on your screen. To adjust the colors in your scanned image, adjust these Epson Scan 2 or Epson ScanSmart settings (if available) and try scanning again: • If the Image Type setting is Color or Grayscale, adjust the Contrast setting. • If the Image Type setting is Black & White or Grayscale, adjust the Color Enhance setting. Parent topic: Solving Scanned Image Quality Problems Related references Additional Scanning Settings - Advanced Settings Tab Additional Scanning Settings - Main Settings Tab Related tasks Scanning in Epson Scan 2 Scanning a Document in Epson ScanSmart Characters are Not Recognized During Conversion to Editable Text (OCR) If characters in your scanned images are not recognized during OCR conversion, try these solutions: • Make sure your original is loaded straight on your product. • Use an original with clear text. • When saving scanned images as Searchable PDFs, make sure the correct OCR language is selected. • Adjust the following Epson Scan 2 or Epson ScanSmart settings if available, and try scanning again: • On the Main Settings tab, make sure you select the correct Image Type for your original. • On the Main Settings tab, set the Resolution between 200 and 600 dpi. • On the Advanced Settings tab, select Text Enhancement and choose a setting. Note: The Text Enhancement setting depends on the selected Image Type. • If the Image Type is set to Black & White, adjust the Threshold setting on the Advanced Settings tab. (The Image Option must be set to None.) 258

Section	Page
Contents	3
Product Basics	14
Product Parts Locations	14
Product Parts - Front	15
Product Parts - Inside	17
Product Parts - Back	19
Using the Control Panel	19
Control Panel Buttons and Lights	20
The LCD Screen	21
Status Icon Information	21
Entering Characters on the LCD Screen	23
Changing LCD Screen Language	23
Viewing Animations	24
Adjusting the Screen Brightness	24
Turning Off the Operation Time Out Setting	24
Using Power Saving Settings	25
Changing the Sleep Timer Settings	25
Changing the Power Off Timer Settings	25
Using the Epson Smart Panel Mobile App	25
Voice-activated Printing	26
Epson Connect Solutions for Smartphones, Tablets, and More	26
Setting Up Epson Connect Services	27
Using Epson Email Print	27
Using Epson Remote Print	28
Using Epson Scan to Cloud	29
Using AirPrint	29
Setting Up Printing on a Chromebook	30
Android Printing Using the Epson Print Enabler	30
Using Fire OS Printing	31
Using Windows 10 Mobile Printing	31
Using Epson Print and Scan App with Windows Tablets	32
Using the Mopria Print Service	32
Wi-Fi or Wired Networking	34
Network Security Recommendations	34
Wi-Fi Infrastructure Mode Setup	35
Selecting Wireless Network Settings from the Control Panel	36
Setting Up Wireless Printing from a Smartphone or Tablet	38
Wi-Fi Direct Mode Setup	39
Enabling Wi-Fi Direct (Simple AP) Mode	40
Wi-Fi Protected Setup (WPS)	42
Using WPS to Connect to a Network	42
Printing a Network Status Sheet	43
Printing a Network Connection Report	43
Network Connection Report Codes and Messages	44
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	61
Borderless Paper Type Compatibility	62
Compatible Epson Papers	63
Selecting the Paper Settings - Control Panel	65
Paper or Media Type Settings - Control Panel	66
Paper or Media Type Settings - Printing Software	67
Selecting the Default Paper Source Settings	67
Paper Source Settings Options	68
Selecting the Universal Print Settings	69
Universal Print Settings Options	69
Placing Originals on the Product	71
Placing Originals on the Scanner Glass	71
Placing Originals in the Automatic Document Feeder	73
ADF Original Document Specifications	76
Copying	77
Copying Documents or Photos	77
Copying Options	78
Printing from a Computer	80
Printing with Windows	80
Selecting Basic Print Settings - Windows	81
Print Quality Options - Windows	83
Multi-Page Printing Options - Windows	83
Selecting Double-sided Printing Settings - Windows	84
Double-sided Printing Options - Windows	87
Print Density Adjustments - Windows	87
Selecting Additional Layout and Print Options - Windows	88
Custom Color Correction Options - Windows	90
Image Options and Additional Settings - Windows	91
Header/Footer Settings - Windows	92
Selecting a Printing Preset - Windows	93
Selecting Extended Settings - Windows	94
Extended Settings - Windows	96
Printing Your Document or Photo - Windows	98
Checking Print Status - Windows	99
Locking Printer Settings - Windows	100
Locked Setting Options	101
Selecting Default Print Settings - Windows	103
Changing the Language of the Printer Software Screens	104
Changing Automatic Update Options	105
Printing with the Built-in Epson Driver - Windows 10 S	106
Selecting Print Settings - Windows 10 S	106
Printing on a Mac	110
Selecting Basic Print Settings - Mac	111
Print Quality Options - Mac	114
Print Options - Mac	115
Selecting Page Setup Settings - Mac	115
Selecting Print Layout Options - Mac	116
Selecting Double-sided Printing Settings - Mac	117
Double-sided Printing Options and Adjustments - Mac	119
Managing Color - Mac	119
Color Matching and Color Options - Mac	120
Selecting Printing Preferences - Mac	121
Printing Preferences - Mac	122
Printing Your Document or Photo - Mac	123
Checking Print Status - Mac	124
Printing from a Smartphone or Tablet	125
Printing with Epson Photo+	125
Cancelling Printing Using the Product	125
Scanning	126
Starting a Scan	126
Starting a Scan Using the Product Control Panel	126
Scanning to a Connected Computer	127
Scanning to the Cloud	129
Setting Up a WSD Port (Windows 7/Windows Vista)	130
Control Panel Scanning Options	131
Changing Default Scan Job Settings	132
Starting a Scan Using Epson ScanSmart	133
Starting a Scan Using the Epson Scan 2 Icon	134
Starting a Scan from a Scanning Program	137
Starting a Scan from a Smartphone or Tablet	139
Scanning a Document in Epson ScanSmart	139
Saving a Scan	142
Attaching a Scan to Email	143
Sending a Scan to a Cloud Service	144
Printing a Scan	145
Selecting Epson ScanSmart Settings	147
Changing the Epson Product	147
Changing the Scan Settings	148
Changing the File Name Settings	150
Changing the Save Settings	151
Save Settings	153
Customizing Action Icons	155
Scanning in Epson Scan 2	156
Additional Scanning Settings - Main Settings Tab	159
Additional Scanning Settings - Advanced Settings Tab	159
Saving Scanned Documents as a Searchable PDF Using Epson Scan 2	161
Image Format Options	162
Scan Resolution Guidelines	163
Refilling Ink and Replacing the Maintenance Box	165
Ink Safety Precautions	165
Checking the Ink and Maintenance Box Levels	167
Checking Ink Levels on Your Product	168
Checking Maintenance Box Status on the LCD Screen	168
Checking Ink and Maintenance Box Levels - Windows	169
Checking Ink and Maintenance Box Levels - Mac	171
Disabling Special Offers with Windows	172
Purchase Epson Ink and Maintenance Box	173
Ink Bottle and Maintenance Box Part Numbers	174
Refilling the Ink Tanks	174
Maintenance Box Replacement	180
Adjusting Print Quality	182
Print Head Maintenance	182
Print Head Nozzle Check	182
Checking the Nozzles Using the Product Control Panel	183
Checking the Nozzles Using a Computer Utility	185
Print Head Cleaning	188
Cleaning the Print Head Using the Product Control Panel	188
Cleaning the Print Head Using a Computer Utility	191
Power Cleaning	194
Power Cleaning Using the Product Control Panel	195
Power Cleaning Using a Computer Utility	195
Print Head Alignment	197
Aligning the Print Head Using the Product Control Panel	197
Cleaning the Paper Guide	199
Cleaning the Print Head Path	201
Cleaning the Paper Rollers	204
Checking the Number of Sheets Fed	207
Checking the Number of Sheets on the LCD Screen	207
Checking the Sheet Counter - Windows	207
Checking the Sheet Counter - Mac	208
Cleaning and Transporting Your Product	210
Cleaning Your Product	210
Transporting Your Product	212
Solving Problems	217
Checking for Software Updates	217
Viewing the Help Screen	218
Product Status Messages	218
Message Appears Prompting You to Reset Ink Levels	221
Running a Product Check	221
Resetting Control Panel Defaults	222
Solving Setup Problems	223
Product Does Not Turn On or Off	223
Noise After Filling the Ink	223
Software Installation Problems	224
Solving Network Problems	224
Product Cannot Connect to a Wireless Router or Access Point	225
Network Software Cannot Find Product on a Network	226
Product Does Not Appear in Mac Printer Window	228
Wireless Network Connection is Unstable on a Mac	228
Wired Network Connection Becomes Unstable	228
Cannot Print Over a Network	229
Cannot Scan Over a Network	231
Solving Copying Problems	232
Product Makes Noise, But Nothing Copies	232
Product Makes Noise When It Sits for a While	232
Copies Have Incorrect or Faint Colors	233
Position, Size, or Margins of Copies are Incorrect	233
Solving Paper Problems	233
Paper Feeding Problems	234
Originals Do Not Feed From the Automatic Document Feeder	235
Paper Jams Inside the Product	235
Paper Ejection Problems	236
Solving Problems Printing from a Computer	236
Nothing Prints	237
Product Icon Does Not Appear in Windows Taskbar	238
Printing is Slow	239
Solving Page Layout and Content Problems	240
Inverted Image	241
Too Many Copies Print	241
Blank Pages Print	241
Incorrect Margins on Printout	242
Border Appears on Borderless Prints	243
Incorrect Characters Print	243
Incorrect Image Size or Position	244
Slanted Printout	245
Solving Print Quality Problems	245
White or Dark Lines in Printout	246
Blurry or Smeared Printout	247
Faint Printout or Printout Has Gaps	249
Grainy Printout	250
Incorrect Colors	251
Solving Scanning Problems	252
Scanning Software Does Not Operate Correctly	253
Cannot Start Epson Scan 2	253
Scanning is Slow	254
Cannot Send Scans to a Cloud Service	255
Solving Scanned Image Quality Problems	255
Image Consists of a Few Dots Only	255
Line of Dots Appears in All Scanned Images	256
Straight Lines in an Image Appear Crooked	256
Scanned Image Quality Problems	257
Characters are Not Recognized During Conversion to Editable Text (OCR)	258
Image Colors are Patchy at the Edges	259
Ripple Patterns Appear in an Image	259
Scanned Image Edges are Cropped	259
Resetting the Epson Scan 2 Settings	260
Uninstall Your Product Software	260
Uninstalling Product Software - Windows	260
Uninstalling Product Software - Mac	262
Where to Get Help	263
Technical Specifications	264
Windows System Requirements	264
Mac System Requirements	265
Paper Specifications	265
Printable Area Specifications	267
Automatic Document Feeder (ADF) Specifications	269
Scanning Specifications	269
Ink Specifications	270
Dimension Specifications	270
Electrical Specifications	271
Environmental Specifications	271
Interface Specifications	272
Network Interface Specifications	272
Safety and Approvals Specifications	273
Notices	275
Important Safety Instructions	275
General Product Safety Instructions	275
Wireless Connection Safety Instructions	277
LCD Screen Safety Instructions	277
FCC Compliance Statement	278
Binding Arbitration and Class Waiver	279
Trademarks	282
Copyright Notice	282
libTIFF Software Acknowledgment	283
A Note Concerning Responsible Use of Copyrighted Materials	284
Default Delay Times for Power Management for Epson Products	284