Epson LQ 1050 Product Support Bulletin(s) - Page 12

EPSON EPSON AMERICA, INC. SERVICE PSB NO.: P-0020 PRODUCT SUPPORT BULLETIN DATE: 5/6/88 PAGE: 1 of 2 SUBJECT: LQ-850/1050 PAPER THICKNESS LEVER Reports from the field and from various repair locations show that a large percentage of print head failures could be caused by an incorrect paper thickness setting. The following table shows general guide lines for selecting the correct lever position to match your paper usage. PAPER TYPE Single Sheet or Thin paper Multi-Part 2 sheet 3 sheet 4 sheet Labels Envelopes Airmail Plain Bond (20 lb.) Bond (24 lb.) Continuous LEVER POSITION 2 Er 1 3 : 4 4 or 5 ; 7 The higher the number, the thicker the paper. The lever adjusts the distance between the platen and the print head. If the lever is set beyond the recommended position, the dot wire will extend further from the face of the printhead, put stress on the wire, and increase the possibility of dot wire damage. Over adjusting to improve print darkness, using an old ribbon that needs needs replacing, can damage the printhead. Using the recommended lever setting will provide the longest life to the print head and the best possible print quality. Figure 1.1 shows the location of the lever on the LQ-850/1050 printer. Figure 1.2 shows a label that will be added to future LQ-850/1050 printers to further emphasize the correct lever setting. EPSON AMERICA SERVICE, 23610 TELO AVENUE, TORRANCE, CALIF. 90505