A:Answer It can handle card stock but not the 65lb paper weight. Here are the paper handling specs:
Media sizes supported (U.S. standard)
Letter (8.5 x 11); Legal (8.5 x 14); Executive (7.2 x 10.5); Oficio 8.5 x 13 (8.5 x 13); 4 x 6 (4 x 6); 5 x 8 (5 x 8); A4 (8.3 x 11.7); A5 (5.8 x 8.3); A6 (4.1 x 5.8); B5 (JIS)(7.2 x 10.1); B6 (JIS)(5 x 7.2); 10 x 15cm (3.9 x 5.9); Oficio 216 x 340 mm (8.5 x 13.4); 16K 195 x 270 mm (7.6 x 10.6); 16K 184 x 260mm(7.2 x 10.2); 16K 197 x 273 mm (7.8 x 10.7); Postcard (JIS)(3.9 x 5.8); Double Postcard(JIS)(5.8 x 7.9); Envelope #10(4.1 x 9.5); Envelope Monarch (3.9 x 7.5); Envelope B5 (6.9 x 9.8); Envelope C5 (6.4 x 9); Envelope DL (4.3 x 8.7); A5-R (8.3 x 5.8)
Media sizes, custom (U.S. standard)
3 x 5 to 8.5 x 14 in
Media types
Paper (bond, brochure, colored, glossy, heavy, letterhead, light, photo, plain, preprinted, prepunched, recycled, rough), transparencies, labels, envelopes, cardstock
Media weight supported (U.S. standard)
16 to 43 lb (Uncoated/Matte, recommended), however up to 47 lb Postcards and 53 lb HP Matte is allowed in the driver; 16 to 43 lb (Coated/Glossy, recommended), however up to 47 lb Postcards and 59 lb HP Glossy is allowed in the driver.