Lexmark T620 Service Manual - Page 165

4069-5XX/7XX Misalignment of sheets to be stapled. FRU 1 Left Side Bail Assembly 2 Stapler Gearbox Assembly Action Check the left side bail assembly for any signs of binding, missing, or broken parts. Check the stapler gearbox assembly for correct operation. Sheets are transported into output tray but not stapled. FRU 1 Sol 1, Stapler Drive Stapler Assembly Stapler Card Assembly Action Disconnect Sol 1 cable from J5 on the stapler card and measure the resistance of the solenoid across the cable connector. It should measure approximately 48 ohms (when cold). If incorrect, replace the Stapler Gearbox assembly. If correct, replace the stapler card assembly. Stapled Sheets are not transported to the output tray. FRU 1 Sol 2 (Stapler Gearbox Assembly) Stapler Card Assembly Action Disconnect Sol 2 cable from J8 on the stapler card and measure the resistance of the solenoid across the cable connector. It should measure approximately 48 ohms (cold). If incorrect, replace the stapler gearbox assembly. If correct, replace the stapler card assembly. POST incomplete - Stapler cycles several times FRU 1 Stapler Assembly Action Replace the stapler assembly. Note: When replacing the stapler assembly, observe the location of the ground lead from the stapler assembly and the finisher frame, and make sure the ground lead is correctly reattached. (Flag or spring off stapler unit) Will also happen when pin 7 of J3 open. Diagnostic Information 2-137