Epson 24-PIN DOT MATRIX PRINTER LQ-570+ - Manual (Page 113)

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You may have loaded too many sheets in the cut-sheet
bin. You can load up to sheets in the cut-sheet
bond envelopes in the high-capacity cut-sheet
The cut-sheet feeder feeds two or more at the same time.
You may have loaded too many sheets in the cut-sheet
bin. See above.
You may have forgotten to fan the stack of paper before
it into the bin. Remove the paper and it.
Paper loaded from the feeder is
The paper may be old or creased. Use only new, sheets of
the stacker.
Paper loaded the optional pull tractor k or the paper
paper. Remove slack lengthwise by pulling out and rotating
the gear on the right of the optional tractor.