IBM 4247-003 Maintenance Manual - Page 70
MAP 0140: Printhead Drive, Symptom Explanation, Suspected FRUs/Causes - 056 error
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MAP 0140: Printhead Drive Symptom Explanation 56 PRINT ERROR 73 SW ERR 4 3 X 053 MACHINE CHECK ERR 3 X X 053 MACHINE CHECK ERR 4 3 X 056 MACHINE CHECK Carriage Slams Into Sides Printing Slows or Stops Suspected FRUs/Causes Ribbon defective or incorrectly installed Ragged tear-offs on continuous forms Corner on the leading edge of the forms is catching in printhead mask/mask damaged Carriage belt tension is incorrect Carriage belt clamp is loose Carriage motor is defective / mounting hardware Carriage belt idler is not turning Printhead home sensor is dirty or defective Mechanical interference Printhead gap is incorrect Logic board is defective Power supply is for wrong AC voltage Printhead is defective Printhead cable is defective or has bad connection Chapter 1. Diagnosing Problems 70
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