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Epson WorkForce Pro WF-C879R Users Guide - Page 411

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

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Windows 8.x: Navigate to the Apps screen and select Epson Scan 2 Utility. Make sure the correct product is selected. If necessary, select the Other tab and click Reset. Windows (other versions): Click or Start > All Programs or Programs > EPSON > Epson Scan 2 > Epson Scan 2 Utility. Make sure the correct product is selected. If necessary, select the Other tab and click Reset. Mac: Open the Applications folder, click Epson Software, and click Epson Scan 2 Utility. Make sure the correct product is selected. If necessary, select the Other tab and click Reset. • Make sure you do not have multiple versions of Epson Scan 2 installed. If you do, uninstall both versions and install one version. • If you upgraded your operating system but did not reinstall Epson Scan 2, try reinstalling it. • If the user restriction feature (Access Control) is enabled, a user ID and password are required to scan. If you do not know the user ID or password, contact your administrator for assistance. Parent topic: Solving Scanning Problems Related tasks Starting a Scan Using the Epson Scan 2 Icon Entering a User ID and Password for Scanning 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 Scanned Image Quality Problems Image Colors are Patchy at the Edges Ripple Patterns Appear in an Image 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. 411

Section	Page
Contents	3
WF-C879R User's Guide	15
Product Basics	16
Installing or Using Optional Parts	16
Optional Accessories and Replacement Parts	16
Installing the Optional Printer Stand	17
Installing the Optional Paper Cassette Units	25
Enabling the Optional Paper Cassettes - Windows	32
Enabling the Optional Paper Cassettes - Mac	33
Using the Optional Manual Stapler	35
Installing the Optional Ethernet Board	36
Product Parts Locations	37
Product Parts - Front and Inside	38
Product Parts - Top and Back	41
Product Parts - Back	44
Using the Control Panel	47
Control Panel Buttons and Lights	47
Status Icon Information	48
Selecting the Date and Time	49
Selecting Your Country or Region	51
Setting a Password and Locking the Control Panel	51
Entering Characters on the LCD Screen	53
Using Presets	54
Setting User Feature Restrictions (Access Control)	57
Changing LCD Screen Language	58
Adjusting Control Panel Sounds	58
Adjusting the Screen Brightness	60
Turning Off the Operation Time Out Setting	60
Preventing PC Connection via USB	61
Checking for Software Updates	62
Using Power Saving Settings	63
Changing the Sleep Timer Settings	63
Changing the Power Off Timer Settings	64
Epson Connect Solutions for Smartphones, Tablets, and More	65
Setting Up Epson Connect Services	66
Using Epson Email Print	67
Using the Epson iPrint Mobile App	67
Using Epson Remote Print	68
Using Epson Scan to Cloud	68
Using AirPrint	69
Android Printing Using the Epson Print Enabler	70
Using Fire OS Printing	70
Using Windows 10 Mobile Printing	71
Using Epson Print and Scan App with Windows Tablets	71
Wi-Fi or Wired Networking	72
Network Security Recommendations	72
Wi-Fi Infrastructure Mode Setup	73
Selecting Wireless Network Settings from the Control Panel	74
Wi-Fi Direct Mode Setup	76
Enabling Wi-Fi Direct Mode	77
Wi-Fi Protected Setup (WPS)	79
Using WPS to Connect to a Network	79
Printing a Network Status Sheet	80
Printing a Network Connection Report	81
Network Connection Report Codes and Messages	82
Configuring Email Server Settings	87
Changing or Updating Network Connections	88
Accessing the Web Config Utility	89
Changing a USB Connection to a Wi-Fi Connection	89
Changing a Wi-Fi Connection to a Wired Network Connection	89
Connecting to a New Wi-Fi Router	90
Disabling Wi-Fi Features	91
Enabling PCL or PostScript Printing	92
Installing the PCL Driver - Windows	92
Installing the PostScript (PS3) Printer Software - Windows	94
Installing the PostScript (PS3) Printer Software - Mac	94
Selecting PDL (Page Description Language) Settings	95
PDL Print Configuration Options	96
Selecting Printer Language and Interface Settings	98
Printing Language and Interface Options	99
Printing a PCL or PS3 (PostScript) Status Sheet	100
Loading Paper	102
Loading Paper in the Paper Cassettes and Rear Paper Feeder	102
Paper Loading Capacity	108
Double-sided Printing Capacity	116
Compatible Epson Papers	121
Paper or Media Type Settings - Printing Software	124
Selecting the Paper Settings for Each Source - Control Panel	125
Paper Type Settings - Control Panel	127
Selecting Default Paper Settings - Administrator	128
Selecting the Default Printer Settings	128
Paper Source Settings Options	129
Selecting the Universal Print Settings	130
Universal Print Settings Options	131
Placing Originals on the Product	133
Placing Originals on the Scanner Glass	133
Placing Originals in the Automatic Document Feeder	134
Copying	140
Copying Documents or Photos	140
Copying Options	141
Printing from a Computer	145
Printing with the Standard Epson Printer Software - Windows	145
Synchronizing Printer Settings for Optional Units - Windows	146
Selecting Basic Print Settings - Windows	147
Paper Source Options - Windows	150
Print Quality Options - Windows	150
Multi-Page Printing Options - Windows	151
Selecting Double-sided Printing Settings - Windows	151
Double-sided Printing Options - Windows	154
Print Density Adjustments - Windows	154
Selecting Additional Print Options - Windows	155
Custom Color Correction Options - Windows	157
Image Options and Additional Settings - Windows	158
Header/Footer Settings - Windows	159
Selecting a Printing Preset - Windows	160
Selecting Extended Settings - Windows	161
Extended Settings - Windows	162
Printing Your Document or Photo - Windows	164
Locking Printer Settings - Windows	164
Locked Setting Options	166
Entering a User ID and Password for Printing	168
Selecting Default Print Settings - Windows	169
Changing the Language of the Printer Software Screens	170
Changing Automatic Update Options	171
Printing with the Epson Standard Printer Software - Mac	172
Selecting Basic Print Settings - Mac	172
Paper Source Options - Mac	176
Print Quality Options - Mac	176
Print Options - Mac	176
Selecting Page Setup Settings - Mac	177
Selecting Print Layout Options - Mac	178
Selecting Double-sided Printing Settings - Mac	178
Double-sided Printing Options and Adjustments - Mac	180
Managing Color - Mac	180
Color Matching and Color Options - Mac	181
Selecting Printing Preferences - Mac	182
Printing Preferences - Mac	183
Printing Your Document or Photo - Mac	184
Checking Print Status - Mac	185
Printing with the PCL Printer Software - Windows	185
Synchronizing Printer Settings - PCL Driver - Windows	186
Selecting Basic Print Settings - PCL Driver - Windows	188
Selecting Default Print Settings - PCL Driver - Windows	190
Locking Printer Settings - PCL Driver - Windows	192
PCL Driver Locked Setting Options	193
Printing with the PostScript (PS3) Printer Software - Windows	194
Enabling the Optional Paper Cassettes - PostScript Printer Software - Windows	195
Selecting Basic Print Settings - PostScript Printer Software - Windows	196
Selecting Default Print Settings - PostScript Printer Software - Windows	199
Printing with the PostScript (PS3) Printer Software - Mac	201
Enabling the Optional Paper Cassettes - PostScript Printer Software - Mac	201
Selecting Basic Print Settings - PostScript Printer Software - Mac	202
Cancelling Printing Using a Product Button	207
Scanning	208
Starting a Scan	208
Starting a Scan Using the Product Control Panel	208
Scanning to Email	210
Scanning to a Connected Computer	212
Scanning to a Memory Device	215
Scanning to the Cloud	216
Setting Up a WSD Port (Windows 7/Windows Vista)	219
Control Panel Scanning Options	219
Setting Up and Scanning to a Network Folder or FTP Server	221
Creating a Shared Network Folder	222
Registering Contacts for Network Folder or FTP Scanning - Web Config	223
Registering Contacts for Email, Network, or FTP Scanning - Control Panel	225
Scanning to a Network Folder or FTP Server	226
Starting a Scan Using the Epson Scan 2 Icon	229
Starting a Scan from a Scanning Program	231
Starting a Scan from a Smart Device	233
Scanning in Epson Scan 2	233
Additional Scanning Settings - Main Settings Tab	237
Additional Scanning Settings - Advanced Settings Tab	238
Saving Scanned Documents as a Searchable PDF Using Epson Scan 2	239
Image Format Options	241
Scan Resolution Guidelines	241
Scanning with Document Capture Pro or Document Capture	242
Scanning with Simple Scan in Document Capture Pro - Windows	242
Scanning with Job Scan in Document Capture Pro - Windows	244
Adding and Assigning Scan Jobs with Document Capture Pro - Windows	245
Scanning Two Originals onto One Sheet (Stitching Images) - Windows	248
Scanning Multi-Page Originals as Separate Files - Windows	251
Scanning with Document Capture - Mac	254
Adding and Assigning Scan Jobs with Document Capture - Mac	257
Entering a User ID and Password for Scanning	258
Faxing	259
Connecting a Telephone or Answering Machine	259
Setting Up Fax Features	265
Setting Up Basic Fax Features	265
Using the Fax Setup Wizard	265
Selecting the Line Type	267
Setting the Number of Rings to Answer	268
Selecting Advanced Fax Settings	269
Basic Settings - Fax	270
Send Settings - Fax	272
Receive Settings - Fax	273
Report Settings - Fax	276
Security Settings - Fax	277
Setting Up the Fax Utility - Windows	278
Setting Up Fax Features Using the Fax Utility - Mac	279
Setting Up Contacts and Contact Groups	280
Creating a Contact	281
Editing or Deleting a Contact	283
Creating a Contact Group	285
Editing or Deleting a Contact Group	287
Sending Faxes	288
Sending Faxes from the Product Control Panel	289
Sending a Fax Using the Keypad, Contact List, or History	289
Fax Sending Options	292
Sending a Fax at a Specified Time	293
Sending a Fax on Demand	295
Sending a Stored Fax	296
Dialing Fax Numbers from a Connected Telephone	297
Sending Faxes Using the Fax Utility - Windows	298
Sending Faxes Using the Fax Utility - Mac	301
Receiving Faxes	304
Fax Reception	304
Receiving Faxes Automatically	305
Receiving Faxes Manually	305
Forwarding Received Faxes	306
Receiving a Fax by Polling	307
Viewing a Fax on the LCD Screen (Using the Fax Box)	308
Checking Fax Status	309
Printing Fax Reports	310
Fax Report Options	311
Using External USB Devices with Your Product	313
Connecting a USB Device	313
Disconnecting a USB Device	313
Viewing and Printing from the LCD Screen	314
Printing JPEG Photos	314
Print Setting Options - JPEG Mode	316
Printing TIFF and PDF Files	317
Print Setting Options - TIFF Mode	318
Print Setting Options - PDF Mode	319
Transferring Files on a USB Device	320
Setting Up File Sharing for File Transfers from Your Computer	320
Transferring Files from a USB Device to Your Computer	321
Replacing Ink Supply Units (Ink Packs), Maintenance Boxes, and Cassette Rollers	323
Check Ink and Maintenance Box Status	323
Checking Ink Status on the LCD Screen	324
Checking Ink and Maintenance Box Status - Windows	325
Checking Ink and Maintenance Box Status - Mac	326
Purchase Epson Ink Packs and Maintenance Boxes	328
Ink Supply Unit (Ink Pack) and Maintenance Box Part Numbers	328
Removing and Installing Ink Packs	329
Maintenance Box Replacement	331
Optional Staple Cartridge Replacement	332
Replacing the Rollers for Paper Cassette 1	333
Replacing the Rollers for Optional Paper Cassettes 2 to 4	340
Resetting the Roller Counter on the LCD Screen	346
Adjusting Print Quality	348
Print Head Maintenance	348
Checking the Nozzles Using the Product Control Panel	348
Cleaning the Print Head Using the Product Control Panel	350
Power Cleaning Using the Product Control Panel	352
Print Quality Adjustment	353
Adjusting the Print Quality Using the Product Control Panel	353
Adjusting the Quality for Each Paper Type	355
Cleaning the Paper Guide	357
Cleaning and Transporting Your Product	359
Cleaning Your Product	359
Cleaning the Scanner Glass	359
Cleaning the Automatic Document Feeder	361
Cleaning the Paper Rollers	366
Transporting Your Product	367
Removing the Optional Printer Stand	369
Removing the Optional Paper Cassettes	371
Solving Problems	373
Viewing the Help Screen	373
Product Status Messages	374
Job Status Error Codes	377
Running a Product Check	381
Resetting Control Panel Defaults	383
Solving Setup Problems	384
Product Does Not Turn On or Off	384
Noise After Ink Installation	384
Software Installation Problems	385
Solving Network Problems	385
Product Cannot Connect to a Wireless Router or Access Point	386
Network Software Cannot Find Product on a Network	387
Wireless Network Connection is Unstable on a Mac	388
USB 3.0 Connection is Unstable When Using a USB 2.0 Cable	388
Product Does Not Appear in Mac Printer Window	388
Cannot Print Over a Network	389
Cannot Scan Over a Network	390
Solving Copying Problems	391
Product Makes Noise, But Nothing Copies	391
Product Makes Noise When It Sits for a While	392
Solving Copy Quality Problems	392
Copies Have Incorrect or Faint Colors	392
Position, Size, or Margins of Copies are Incorrect	393
Solving Paper Problems	393
Paper Feeding Problems	394
Originals Do Not Feed From the Automatic Document Feeder	395
Paper Jam Problems	396
Paper Ejection Problems	397
Solving Problems Printing from a Computer	397
Nothing Prints	397
Product Icon Does Not Appear in Windows Taskbar	398
Printing is Slow	399
Solving Page Layout and Content Problems	400
Inverted Image	401
Too Many Copies Print	401
Blank Pages Print	401
Incorrect Margins on Printout	402
Incorrect Characters Print	402
Incorrect Image Size or Position	403
Slanted Printout	403
Solving Print Quality Problems	404
White or Dark Lines in Printout	404
Blurry or Smeared Printout	405
Faint Printout or Printout Has Gaps	407
Grainy Printout	408
Incorrect Colors	409
Solving Scanning Problems	410
Scanning Software Does Not Operate Correctly	410
Cannot Start Epson Scan 2	410
Solving Scanned Image Quality Problems	411
Image Consists of a Few Dots Only	411
Line of Dots Appears in All Scanned Images	412
Straight Lines in an Image Appear Crooked	412
Scanned Image Quality Problems	412
Image Colors are Patchy at the Edges	414
Ripple Patterns Appear in an Image	414
Scanned Image Edges are Cropped	414
Solving Faxing Problems	414
Cannot Send or Receive Faxes	415
Cannot Receive Faxes with a Telephone Connected to Your Product	416
Fax Memory Full Error Appears	417
Fax Quality is Poor	418
Sent Fax is Received in an Incorrect Size	418
Received Fax is Not Printed	419
Solving USB Device Problems	419
Cannot View or Print from a USB Device	419
Cannot Save Files on a USB Device	420
Cannot Transfer Files To or From a USB Device	420
Uninstall Your Product Software	421
Uninstalling Product Software - Windows	421
Uninstalling Product Software - Mac	422
Where to Get Help	422
Technical Specifications	424
Windows System Requirements	424
Mac System Requirements	425
Paper Specifications	426
Printable Area Specifications	428
Scanning Specifications	429
Automatic Document Feeder (ADF) Specifications	430
Fax Specifications	431
Ink Pack Specifications	432
Dimension Specifications	433
Electrical Specifications	434
Environmental Specifications	434
Interface Specifications	435
External USB Device Specifications	435
Network Interface Specifications	436
Safety and Approvals Specifications	438
Notices	440
Important Safety Instructions	440
General Product Safety Instructions	440
Ink Pack Safety Instructions	442
Wireless Connection Safety Instructions	443
LCD Screen Safety Instructions	443
Telephone Equipment Safety Instructions	444
FCC Compliance Statement	444
Binding Arbitration and Class Waiver	447
Trademarks	450
Copyright Notice	450
libTIFF Software Acknowledgment	451
A Note Concerning Responsible Use of Copyrighted Materials	452
Default Delay Times for Power Management for Epson Products	452