Ricoh A151 Field Service Manual page 384

TECHNICAL SERVICE BULLETIN
CUSTOMER SERVICE GROUP
BULLETIN NUMBER: 3013/3213/3513/3713 - 016 11/17/97
APPLICABLE MODEL: FT3513/3713
SUBJECT: SOFTWARE MODIFICATION
SYMPTOM:
1. E54 is indicated after warm-up, usually seconds after the Fusing Lamp has turned off at 185°C. This
occurs only on the machines that have Fusing Phase Control Mode turned ON.
2. Trailing edge deletion in 65% reduction on the FT3713 only.
CAUSE:
1. Software Bug, when using Phase Control Mode, SP29 set to 1.
2. Software Bug on the FT3713 only.
Field Countermeasure:
1. Set SP 29 to 0 On/Off Control.
Production Countermeasure:
1. New Firmware applied during production, "E" version ROM.
2. Install 'F' version ROM for the FT3713.
Note: Do not select the Phase Control Mode unless needed.
UNITS AFFECTED:
All FT3513/3713 copiers manufactured after Serial Number A7407900066 & A7417900734 will have the
new "E" version ROM installed during production. The Serial Number for the FT3713 'F' version ROM was
not available at the time of publication.
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