Service center locator. for products in warranty, please contact technical support. if your product is out of warranty, find a service center. find a location. The new epson lq-300+ is the heir to the successful lq-300. with this follow-up model, the 24-needle printer has been greatly improved, especially in terms of speed and robustness. the new epson lq-300+ prints up to 300 characters/second.. Epson pos and discproducer products technical information discproducer; dot matrix; colorworks; download. 9 pin; 24 pin; top