Lexmark T640TN Service Manual - Page 4

4061-xx0 Power-On Self Test (POST) sequence 2-4 Symptom tables 2-5 Base printer symptoms 2-5 High-capacity feeder (2000-sheet) symptoms 2-5 Paper tray symptoms 2-6 Duplex option symptoms 2-6 Envelope feeder symptoms 2-6 Output expander 2-6 StapleSmart finisher 2-7 Messages and error codes 2-8 Service error codes 2-8 User status displays 2-31 User attendance messages 2-32 User line 2 link messages 2-43 Check device connection messages 2-43 User attendance messages-paper jams and paper handling errors (2xx.xx 2-44 Service checks 2-72 5-Bin mailbox service check 2-72 900.xx Error code service check 2-75 927.xx Fan service check 2-76 Main fan 2-76 Cartridge fan service check 2-76 950.00 through 950.29 EPROM mismatch failure 2-77 950.30 through 950.60 EPROM mismatch failure 2-78 Charge roll service check 2-79 Cover closed switch/cable service check 2-80 Dead machine service check 2-80 Duplex option service check 2-82 Envelope feeder service check 2-84 Fuser service checks 2-87 920.xx-Cold fuser service check 2-87 922.xx-Cold fuser check 2-89 923.xx-Hot fuser service check 2-90 924.xx-Hot fuser service check 2-91 925.xx-Hot fuser service check 2-91 Fuser exit sensor service check 2-92 Fuser narrow media sensor service check 2-93 Fuser solenoid service check 2-94 High-capacity feeder input tray service check 2-95 High-capacity output stacker service check 2-100 Input sensor service check 2-102 Input tray(s) service check 2-102 Interconnect card service check 2-104 Main drive service check 2-105 Operator panel service check 2-106 One or more operator panel buttons fail 2-106 No buttons work 2-106 Operator panel display 2-107 Options service check 2-108 Flash Memory Option(s 2-108 DRAM Memory Option(s 2-108 Hard Disk Option 2-108 Output bin sensor standard tray service check 2-109 Output expander service check 2-110 Paper feed service check 2-112 Paper size sensing service check 2-113 Parallel port service check 2-116 Print quality service check 2-116 iv Service Manual