Epson WF-7840 Series User Manual page 4

Maintaining the Printer
Checking the Status of Consumables. . . . . . . . . . . 150
Improving Print, Copy, Scan, and Fax Quality. . . . 150
Adjusting the Print Quality. . . . . . . . . . . . . . . . 150
Checking and Cleaning the Print Head. . . . . . . 151
Preventing nozzle clogging. . . . . . . . . . . . . . . . 153
Aligning the Print Head. . . . . . . . . . . . . . . . . . 153
Cleaning the Paper Path for Ink Smears. . . . . . .153
Cleaning the Scanner Glass and Document Mat 153
Cleaning the ADF. . . . . . . . . . . . . . . . . . . . . . 155
Cleaning the Printer. . . . . . . . . . . . . . . . . . . . . . . 157
Saving Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Saving Power (Control Panel). . . . . . . . . . . . . . 158
Installing or Uninstalling Applications Separately. 159
Installing the Applications Separately. . . . . . . . 159
Adding the Printer (for Mac OS Only). . . . . . . .161
Uninstalling Applications. . . . . . . . . . . . . . . . . 161
Updating Applications and Firmware. . . . . . . . 163
Transporting and Storing the Printer. . . . . . . . . . . 165
Solving Problems
The Printer Does Not Work as Expected. . . . . . . . 169
The Printer Does Not Turn On or Off. . . . . . . . 169
Power Turns Off Automatically. . . . . . . . . . . . . 169
Paper Does Not Feed Properly. . . . . . . . . . . . . 169
Cannot Print. . . . . . . . . . . . . . . . . . . . . . . . . . 173
Cannot Start Scanning. . . . . . . . . . . . . . . . . . . 190
Cannot Send or Receive Faxes. . . . . . . . . . . . . .202
Error Code is Displayed on the Status Menu. . . 218
Cannot Operate the Printer as Expected. . . . . . 222
A Message is Displayed on the LCD Screen. . . . . . 227
Paper Gets Jammed. . . . . . . . . . . . . . . . . . . . . . . 228
Preventing Paper Jams. . . . . . . . . . . . . . . . . . . 229
It is Time to Replace the Ink Cartridges. . . . . . . . . 229
Ink Cartridge Handling Precautions. . . . . . . . . 229
Replacing Ink Cartridges. . . . . . . . . . . . . . . . . 232
Continue Printing Temporarily without
Replacing Ink Cartridges. . . . . . . . . . . . . . . . . 232
It is Time to Replace the Maintenance Box. . . . . . .236
Maintenance Box Handling Precautions. . . . . . 236
Replacing a Maintenance Box. . . . . . . . . . . . . . 236
Printing, Copying, Scanning, and Faxing
Quality is Poor. . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Print Quality is Poor. . . . . . . . . . . . . . . . . . . . .238
Copy Quality is Poor. . . . . . . . . . . . . . . . . . . . 247
Scanned Image Problems. . . . . . . . . . . . . . . . . 254
The Quality of the Sent Fax is Poor. . . . . . . . . . 256
Received Fax Quality is Poor. . . . . . . . . . . . . . .258
Cannot Solve Problem. . . . . . . . . . . . . . . . . . . . . 259
Cannot Solve Printing or Copying Problems. . . 259
Adding or Replacing the Computer or
Devices
Connecting to a Printer that has been
Connected to the Network. . . . . . . . . . . . . . . . . . 262
Using a Network Printer from a Second
Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Using a Network Printer from a Smart Device. . 263
Re-setting the Network Connection. . . . . . . . . . . 263
When Replacing the Wireless Router. . . . . . . . .263
When Changing the Computer. . . . . . . . . . . . . 264
Changing the Connection Method to the
Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Making Wi-Fi Settings from the Control Panel. .267
Connecting a Smart Device and Printer Directly
(Wi-Fi Direct). . . . . . . . . . . . . . . . . . . . . . . . . . . 269
About Wi-Fi Direct. . . . . . . . . . . . . . . . . . . . . 269
Connecting to an iPhone, iPad or iPod touch
using Wi-Fi Direct. . . . . . . . . . . . . . . . . . . . . . 270
Connecting to Android Devices using Wi-Fi
Direct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Connecting to Devices other than iOS and
Android using Wi-Fi Direct. . . . . . . . . . . . . . . 274
Disconnecting Wi-Fi Direct (Simple AP)
Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Changing the Wi-Fi Direct (Simple AP)
Settings Such as the SSID. . . . . . . . . . . . . . . . . 277
Checking the Network Connection Status. . . . . . . 278
Checking the Network Connection Status
from the Control Panel. . . . . . . . . . . . . . . . . . . 279
Printing a Network Connection Report. . . . . . . 280
Printing a Network Status Sheet. . . . . . . . . . . . 285
Checking the Network of the Computer
(Windows only). . . . . . . . . . . . . . . . . . . . . . . . 286
Product Information
Paper Information. . . . . . . . . . . . . . . . . . . . . . . . 288
Available Paper and Capacities. . . . . . . . . . . . . 288
Unavailable Paper Types. . . . . . . . . . . . . . . . . . 292
Consumable Products Information. . . . . . . . . . . . 293
Ink Cartridge Codes. . . . . . . . . . . . . . . . . . . . . 293
Maintenance Box Code. . . . . . . . . . . . . . . . . . .294
Software Information. . . . . . . . . . . . . . . . . . . . . . 294
Software for Printing. . . . . . . . . . . . . . . . . . . . 294
Software for Scanning. . . . . . . . . . . . . . . . . . . .298
Software for Faxing. . . . . . . . . . . . . . . . . . . . . 298
Software for Package Creation. . . . . . . . . . . . . .299
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