Lexmark 4079 colorjet printer plus Service Manual - Page 58

Paper Feed Electrical 017 icont nued) Check for foreign cbjects in the drive path. Check carriage rr c vement, watching for parts that touch the carriage. Does the carriage move freely (no obstructions)? "res No 018 ReITIOVe foreign oojects or correct the parts that tou:h the Darriage. 019 Are the characters printed in their correct positions? "rsis No 020 Check 'whether the printer is picking up vibrations trprn the environment I'vlove the printer to a different location, ii necessary. Check the phrl tinning slit for breaks, folds, or sci .ing. Is the timing slit OK? Yes No (121 7. Feplac e the tinning slit. 2. Check the white ribbon cable 1 and brown carriage cable • tor continuity; replace needed. 3. Replace the l inear encoder (fi,sm. 9-2) 022 - - Remove and replace the following FRUs in sequence, checking printer operation atter each replacimnelt: 1 Ce.rriage boi tn." 2. Logic board. f :3E1 lE3I,A Color „le prwitE 4079 HMS I DC1.1111,1, 111,111,111fil .1'411 IIIIii. 4114,6114 ,111111 HID,/ ell 1111114.II IIII 1.11.110 010..