Lexmark T644 Service Manual - Page 45
Symptom tables, Base printer symptoms, High-capacity feeder (2000-sheet) symptoms - black bands
UPC - 845307525920
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4061-xx0 Symptom tables Base printer symptoms Symptom Action Dead machine Operator panel-one or more buttons do not work. Operator panel-none of the buttons work. Operator panel-display is blank. Printer sounds 5 beeps. Operator panel-display is blank. Operator panel continuously displays all diamonds and does not complete POST. Paper feed problems-base printer or integrated 500-sheet paper tray Paper jams at exit of redrive assembly- duplex option not installed. Paper jams at exit of redrive assembly- duplex option installed. Fuser solenoid fails to operate. Print quality-black page Print quality-blank page Print quality-light print Print quality-background Print quality-residual image Print quality-skew Print quality-banding Print quality-random marks Print quality-toner on backside of printed page. Print quality-vertical black bands on edge of copy. Unable to clear a 32-Unsupported Print Cartridge user error message. Go to "Dead machine service check" on page 2-80. Go to "One or more operator panel buttons fail" on page 2-106. Go to "No buttons work" on page 2-106. Go to "Operator panel display" on page 2-107. Go to "Operator panel display" on page 2-107 Go to "Operator panel service check" on page 2-106. Go to "Paper feed service check" on page 2-112. Go to "Paper feed service check" on page 2-112. Go to "Duplex option service check" on page 2-82. Go to "Fuser solenoid service check" on page 2-94. Go to "Print quality-all black page" on page 2-116. Go to "Print quality-blank page" on page 2-117. Go to "Print quality-light print" on page 2-121. Go to "Print quality-background" on page 2-118. Go to "Print quality-residual image" on page 2-120. Go to "Paper feed service check" on page 2-112. Go to "Print quality-banding" on page 2-119. Go to "Print quality-random marks" on page 2-117. Go to "Print quality-toner on backside of printed page" on page 2-121. Go to "Print quality-black bands on outer edges of the page" on page 2-120. Go to "Signature button assembly service check" on page 2-122. High-capacity feeder (2000-sheet) symptoms Symptom The printer does not recognize the highcapacity feeder installed. Paper feed problem with the high-capacity feeder. Action Go to "High-capacity feeder input tray service check" on page 2-95. Go to "High-capacity feeder input tray service check" on page 2-95. Diagnostic information 2-5