Lexmark T632 Service Manual - Page 123

4060-xxx 281 Paper Jam-The paper feeds partway into the standard bin even if finisher is selected Note: When a 900 Service Error is displayed during POST the failure is usually in the stapler gearbox assembly or stapler cartridge. FRU 1 DC motor in drive gearbox assembly Stapler card assembly Action Turn the printer off, disconnect the motor from J4 and check for continuity between J4 pins 1, 2, 5, and 6 on the cable and the motor case. If you get continuity, replace the drive gearbox assembly. If you do not measure continuity, continue with this step. Check the voltages on connector J4. Note: All voltages are approximate values Pin No. Voltage static 1 +24 V dc 2 +24 V dc 3 Not used 4 Ground 5 +5 V dc 6 +5 V dc Voltage feeding +24 V dc Varies +11 V dc to +24 V dc Varies +3 V dc to +5 V dc +5 V dc If the voltages are correct, replace the mechanical drive assembly. If the voltages are incorrect, replace the stapler card assembly. FRU 1 Swing arm spring 2 Clutch assembly Drive motor assembly Drive gear Action Make sure the swing arm spring is connected and not loose or broken. Check the clutch assembly on the right side frame assembly for correct operation and broken or loose parts. Check the drive motor assembly and drive gear for damage. 281 Paper Jam-The paper may jam at the upper deflector. FRU 1 Upper deflector 2 Upper deflector spring Action Check the upper deflector for signs of broken parts, especially the hook that holds the upper deflector spring. Check for bowing of the deflector. Make sure the deflector moves smoothly and freely with no signs of binds. Make sure the upper deflector spring is not loose or broken. Diagnostic information 2-89