Printer and Photocopier Troubleshooting and Repair Collection : Star SD15 printer self-test problem     
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Star SD15 printer self-test problem

"This printer has a problem I am lost with. When I power it up and attempt to have it perform the self-test printout (FF on power up), the print head moves back and forth, the paper feeds, but the pins don't actually fire. However, if I connect the printer to a computer, the printing is just fine."

You are complaining? :-) Usually, it is the other way around!

(From: Ralph Wade Phillips (ralphp@gcstation.net).)

Eh? On the SD-15, the FF SelfTest is for checking HEAD MOVEMENT only. It sounds like it passes just fine!

Try holding down LINEFEED button instead. :-)