[. . . ] This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time. Comments about this publication may be addressed to Lexmark International, Inc. [. . . ] From the operator panel or from MarkVision Professional, set the Paper Type to Labels. Do not use labels that have coating or sizing applied to make the labels liquid-resistant. When printing on card stock: · Only feed card stock from Tray 1. The Lexmark C750 prints on many labels designed for use with laser printers. the following table lists the maximum basis weights supported by the trays and the multipurpose feeder. Lexmark C750: Overview of card stock and label support Vinyl labels are supported only when printing environment and media are 20--32. The skew performance of heavy vinyl labels may be enhanced by feeding from an optional 500 sheet drawer if placement of the image is critical. Using media higher than 300 Sheffield could result in printing degradation. The Lexmark C750 trays, which hold approximately 500 sheets of 75 g/m2 bond paper, reliably feed all supported media. Like the Optra S and Optra T, the Lexmark C750 printer uses an auto compensator to pick the media rather than the corner buckler system used by earlier printer models. The Lexmark C750 trays have two rollers that touch the media in two places (see Figure 10 on page 57). If you print large quantities of labels or other glossy print media, replace the fuser housing with a web oiler field upgrade kit (P/N 12G6307 for a 115 V printer, P/N 12G6308 for a 220 V printer). The Lexmark C752 prints on many labels designed for use with laser printers. the following table lists the maximum basis weights supported by the trays and the multipurpose feeder. Lexmark C752: Overview of card stock and label support Vinyl labels are supported only when printing environment and media are 20--32. The skew performance of heavy vinyl labels may be enhanced by feeding from an optional 500 sheet drawer if placement of the image is critical. Using media higher than 300 Sheffield could result in printing degradation. The Lexmark C752 trays, which hold approximately 500 sheets of 75 g/m2 bond paper, reliably feed all supported media. The Lexmark C752 uses an auto compensator to pick the media rather than the corner buckler system used by earlier printer models. The Lexmark C752 trays have two rollers that touch the media in two places (see Figure 11 on page 61). Avoid placing deep perforations in these areas since the media may nest, causing multiple sheet feeds. Perforations that could cause nesting and tenting should fall outside the 0. [. . . ] This content provides the paper with a high degree of stability resulting in fewer paper feeding problems and better print quality. Paper containing fibers such as cotton have characteristics that can result in degraded paper feeding. Transfer of ink from a form to the printer's pick mechanism or fuser assembly, which can cause printer contamination. Inks that can withstand fuser temperatures of 225°C (437°F) and pressures to 25 psi without contaminating the printer or releasing hazardous fumes. [. . . ]