Service manual

SERVICE MANUAL MASTER FILE
ENGLISH
Rev. A (1997/05/07)
3-5
1. Printer fails to operate when power is on.
Íß°¼Þ1
START
Is AC input voltage normal?
120V version: 85 - 138V
230V version: 187 - 276V
Use the correct AC input voltage.
No fluctuation from AC voltage range is
permitted.
NO
YES
Are the fuses F1 on
C229PSB/PSE blown?
Replace the fuse.
Is the new fuse also blown when
power is turned on again?
Measure the +35V line at pin 7
or 8 of CN2 on C229PSB/PSE.
Is output voltage
normal?
Replace the C229
PSB/PSE.
Measure the +5V line at pin 3 or 4
of CN2 on C229PSB/PSE.
Is output voltage
normal?
Replace the C229
PSB/PSE.
Verify each motor and printhead solenoid
resistance,referring to Table 3-1 and Table 3-2.
Are the resistance
normal?
Replace the applied
unit.
Replace the C229MAIN.
END
NO
YES
YES
YES
NO
NO
NO
YES
NO
YES
Figure 3-4. Flowchart (1)