Appendix – Epson EcoTank ET-4550 User Manual
Page 6

Printout Problems. . . . . . . . . . . . . . . . . . . . . . . . 114
Print Quality is Poor. . . . . . . . . . . . . . . . . . . . .114
Print Quality Does Not Improve Even After
Aligning the Print Head. . . . . . . . . . . . . . . . . . 115
Images or Photos are Printed in Unexpected
Colors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Banding Appears at Intervals of
Approximately 3.3 cm. . . . . . . . . . . . . . . . . . . .115
Copy Quality Is Poor. . . . . . . . . . . . . . . . . . . . 115
An Image of the Reverse Side of the Original
Appears in the Copied Image. . . . . . . . . . . . . . 116
The Position, Size, or Margins of the Printout
Are Incorrect. . . . . . . . . . . . . . . . . . . . . . . . . . 116
Paper Is Smeared or Scuffed. . . . . . . . . . . . . . . 116
Printed Characters Are Incorrect or Garbled. . . 117
The Printed Image Is Inverted. . . . . . . . . . . . . . 117
The Printout Problem Could Not be Cleared. . . 117
Other Printing Problems. . . . . . . . . . . . . . . . . . . 118
Cannot Start Scanning. . . . . . . . . . . . . . . . . . . . . 118
Scanned Image Problems. . . . . . . . . . . . . . . . . . . 119
Scan Quality Is Poor. . . . . . . . . . . . . . . . . . . . . 119
Characters Are Blurred. . . . . . . . . . . . . . . . . . .120
An Image of the Reverse Side of the Original
Appears in the Scanned Image. . . . . . . . . . . . . 120
Moiré (Cross-Hatch) Patterns Appear in the
Scanned Image. . . . . . . . . . . . . . . . . . . . . . . . .120
Scanning Area or Direction Is Not Correct. . . . 120
The Scanned Image Problem Could Not be
Cleared. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Other Scanning Problems. . . . . . . . . . . . . . . . . . . 121
Thumbnail Preview Does Not Work Properly. . .121
Scanning Is Too Slow. . . . . . . . . . . . . . . . . . . . 121
Scanning Stops when Scanning to PDF/
Multi-TIFF. . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Problems when Sending and Receiving Faxes. . . . .122
Cannot Send or Receive Faxes. . . . . . . . . . . . . .122
Cannot Send Faxes. . . . . . . . . . . . . . . . . . . . . . 123
Cannot Send Faxes to a Specific Recipient. . . . . 123
Cannot Send Faxes at a Specified Time. . . . . . . 124
Cannot Receive Faxes. . . . . . . . . . . . . . . . . . . . 124
Memory Full Error Occurs. . . . . . . . . . . . . . . . 124
Sent Fax Quality Is Poor. . . . . . . . . . . . . . . . . . 125
Faxes Are Sent at the Wrong Size. . . . . . . . . . . .125
Received Fax Quality Is Poor. . . . . . . . . . . . . . .125
Received Faxes Are Not Printed. . . . . . . . . . . . 125
Other Faxing Problems. . . . . . . . . . . . . . . . . . . . .126
Other Problems. . . . . . . . . . . . . . . . . . . . . . . . . . 126
Slight Electric Shock when Touching the
Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Operation Sounds Are Loud. . . . . . . . . . . . . . . 126
The ADF Does Not Work. . . . . . . . . . . . . . . . . 127
Scanning from ADF Slows Down. . . . . . . . . . . 127
The Date and Time Are Incorrect. . . . . . . . . . . 127
Application Is Blocked by a Firewall (for
Windows Only). . . . . . . . . . . . . . . . . . . . . . . . 127
A Message Prompting You to Reset the Ink
Levels is Displayed. . . . . . . . . . . . . . . . . . . . . . 127
Technical Specifications. . . . . . . . . . . . . . . . . . . . 128
Printer Specifications. . . . . . . . . . . . . . . . . . . . 128
Scanner Specifications. . . . . . . . . . . . . . . . . . . 128
Interface Specifications. . . . . . . . . . . . . . . . . . . 129
Fax Specifications. . . . . . . . . . . . . . . . . . . . . . .129
Wi-Fi Specifications. . . . . . . . . . . . . . . . . . . . . 130
Ethernet Specifications. . . . . . . . . . . . . . . . . . . 130
Security Protocol. . . . . . . . . . . . . . . . . . . . . . . 130
Supported Third Party Services. . . . . . . . . . . . . 130
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Electrical Specifications. . . . . . . . . . . . . . . . . . 131
Environmental Specifications. . . . . . . . . . . . . . 132
System Requirements. . . . . . . . . . . . . . . . . . . . 132
Regulatory Information. . . . . . . . . . . . . . . . . . . . 133
Standards and Approvals. . . . . . . . . . . . . . . . . 133
Restrictions on Copying. . . . . . . . . . . . . . . . . . 134
Saving Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Saving Power - Control Panel. . . . . . . . . . . . . . 135
Transporting the Printer. . . . . . . . . . . . . . . . . . . . 136
Where to Get Help. . . . . . . . . . . . . . . . . . . . . . . . 138
User's Guide
Contents
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