IBM 4247-003 Maintenance Manual - Page 102

Table 15. MAP 0190: Forms Feed Problems Step Questions/Actions Yes 1. Forms feed problems can have multiple causes. While Go to step 2 on page 103. following this MAP, do not stop your search after resolving the first cause. This is especially true when you are investigating environmental and usage problems. Search for additional causes. The error messages '02 FORMS JAM,' '002 FORMS JAMMED,' '020 FORMS JAMMED,' and '099 FORMS JAMMED' display when forms jam in the printer or if the sensor circuit senses an incorrect situation or fails. Either the printer sensed that the forms have stopped processing through the printer, or the printer sensed forms are present when no forms were expected. For Models 001, 002, or 003, the messages 002 and 020 are sensed by the tractor sensors. These messages indicate that forms have stopped. Message 099 is sensed by the paper presence sensor (located near the platen), and indicates unexpected forms are present. For Model A00, the sense mechanism uses message 02 for either condition. Open and close the top cover while you observe the (printhead) carriage assembly. v If the carriage assembly moves, the paper presence sensor indicates unexpected forms are present. This is equivalent to a 099 message. v If the carriage assembly does not move, the tractor sensors indicate the forms have stopped. This is equivalent to a 002 or a 020 message. Power off (O) the printer. Is this a 002 or a 020 jam message or the A00 equivalent? No Go to step 28 on page 120. Chapter 1. Diagnosing Problems 102