Konica Minolta Di1611 Service Manual page 168

Di1611/Di2011 FIELD SERVICE Ver.1.0 Mar. 2004
Malfunc-
tion Malfunction Name
Code
Engine connection
C1038
failure
Faulty ASIC/mem-
C1200
ory
Polygon Motor mal-
C1300
function
Communication
C133B
with option error
C133D ROM check error
C13F0 Faulty HSYNC
C1468 Faulty EEPROM
IR fluorescent lamp
C14A3
fault
Detection Timing
Master Board (PWB-A) to Control Board (PWB-C/C) con-
nection failure
• There is no acknowledge signal transmitted from the
Master Board (PWB-A) to Control Board (PWB-C/C) for
1.5 sec. or more.
• An error command signal is transmitted from the Control
Board (PWB-C/C) to Master Board (PWB-A).
• An error status signal is transmitted from the Master
Board (PWB-A) to Control Board (PWB-C/C).
ASIC/memory (for image and control) fault
• A write or read error occurs with SRAM on the Control
Board (PWB-C/C).
Startup failure
• A LOW Polygon Motor (M2) Lock signal is not detected
within a given period of time that begins 1 sec. after the
Polygon Motor has started turning.
Lock signal fault: Unstable after the first Lock signal has
been detected
• For a period of 1 sec. after the first LOW Polygon Motor
(M2) Lock signal (first Lock) has been detected, the next
LOW Polygon Motor Lock signal is not detected.
Lock signal fault: Lock signal out-of-timing
• A LOW Polygon Motor (M2) Lock signal is not detected
for a continuous given period of time while the rotation
of the Polygon Motor remains stabilized.
Faulty Lock signal
• A LOW Polygon Motor (M2) Lock signal is detected for a
given period of time or more when the Polygon Motor
remains deenergized.
• It is not possible to communicate with the Printer Board
within a predetermined period of time during a print
cycle.
• An error is detected of the flash ROM chip on the Fax
Board when the Power Switch is turned ON.
Laser scanning system malfunction
• The SOS Sensor does not detect a rising edge of SOS
within a given period of time after the Polygon Motor
(M2) has started turning and a laser output has been
started.
• The SOS Sensor detects no rising edges of SOS while
VIA (image area control) is ON.
EEPROM fault
• Data cannot be written in EEPROM.
• Data stored in EEPROM is wrong.
The Exposure Lamp (LA2) of the Scanner fails to turn ON.
• The intensity of the Exposure Lamp is a predetermined
value or less during shading and re-shading.
3-19
TROUBLESHOOTING