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Troubleshooting
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7.3.4 C3: Shading Correction malfunction
7.3.5 C4: Cooling Fan Motor malfunction
7.3.6 Cb: Communication Error
7.3.7 CL: Printer Clock malfunction
Display Detection
C3 When during shading correction (b6) the projection lamp light to CCD is few
unusually.
Display Detection Timing
C4 A HIGH Cooling Fan Motor Lock Signal is output after the Power Switch is
turned ON.
Display Detection Timing
Cb Detected the following conditions 4 times during machine initialization.
• No response of the printer in less than 100 msec. from command
transmission.
• A parity error is in receiving data.
• Receives a command error and a parity error.
Display Detection Timing
Cb • The clock of the Oscillator (OSC1, 2) on the Printer I/F Board (PWB-EE) is
not suitable for the printer.
Cooling Fan
Motor Lock
Signal
H
L
within 5 sec.
Motor (M3,M4) stopped
C4