Epson 1010 User Manual page 186

The print position is not what you expected.
Printing starts too high or too low on the page.
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Use micro-adjustment to adjust the loading position.
Check the top margin set by your application software and
adjust it.
All the text is printed on the same line.
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Set DIP switch 2-4 on so the printer automatically adds a line
feed code to each carriage return.
The text is printed with an extra blank line in between.
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Two line feed signals are being sent. Set DIP switch 2-4 off.
Page length does not match the length of the paper.
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Check the page length set by DIP switches 1-4 and 1-5.
Check the page length set by your application software and
adjust it if necessary.
Regular gaps occur in the printout.
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One-inch skip over perforation may be set. Set DIP switch 2-3 to
off.
Skip over perforation is set, but the perforation does not fall in the
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center of the skip.
Adjust the loading position.
Troubleshooting 7-5