Lexmark T632 Service Manual - Page 122

4060-xxx 990 Service Error Code - Check Bin x displayed-POST Incomplete • "Step 1-During POST the stapler option does not try to home." on page 2-88. • "Step 2-During POST the stapler option tries to home." on page 2-88. Step 1-During POST the stapler option does not try to home. FRU 1 Stapler card assembly Drive motor assembly 2 Drive motor assembly (mechanical) Action Turn the printer off, disconnect the motor from J2 and check for continuity between J2 pins 1, 2, 5, and 6 on the cable and the motor case. If you get continuity, replace the motor drive assembly. If you do not measure continuity, continue with this step. Reconnect J2 and check the voltages on connector J2. Note: All voltages are approximate values. Pin No. Voltage static Voltage feeding 1 +24 V dc +24 V dc 2 +24 V dc Varies +11.4 V dc to +24 V dc 3 Not used 4 Ground 5 +5 V dc Varies +3.6 V dc to +5 V dc 6 +5 V dc +5 V dc If the voltages are correct, replace the motor drive assembly. If the voltages are incorrect, replace the stapler card assembly. Check the drive motor assembly (99A2513) for normal operation. Normal operation for this assembly during POST is the motor turns, the motor pinion gear turns, the drive gear turns, and the clutch rotates and sets. Step 2-During POST the stapler option tries to home. Note: When a 990 Service Error is displayed during POST, the failure is usually in the stapler mechanical unit or stapler card. 2-88 Service Manual