HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 213
reset by the Master CPU., controller board was
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Call Engineer Error Messages and Codes Error Message BD speed low alarm LD alarm In-frame fan alarm 1 In-frame fan alarm 2 In-frame fan alarm 6 In-frame fan alarm 7 Watchdog timer alarm (master) Watchdog timer alarm (slave) Communicatio n alarm Code SVC 7D SVC 7E SVC A0 SVC A1 SVC A3 SVC A4 SVC B0 SVC B1 SVC B3 Description Action The BD (beam detection) cycle, inside the optical unit is below normal speed. The LD (laser diode), inside the optical unit is not working correctly. Fan number 1 (inside the optical unit) did not rotate correctly. Fan number 2 (upper left rear side) did not rotate correctly. Fan number 6 (fan for cooling the main controller board) did not rotate correctly. Fan number 7 (lower left rear side) did not rotate correctly. The timer on the mechanism controller board was not reset by the "Master CPU". Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. The timer on the mechanism controller board was not reset by the "Slave CPU". Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. The communication between the two processors on the mechanism controller board was disabled. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. If this error code returns, call your service representative. Turn the printer off for at least 30 seconds, and turn the printer on again. This error is not related to the serial or parallel ports. If this error code returns, call your service representative. A-12 Printer Messages