09/03
2-700
DC 3535/2240/1632, WC M24
OF 1-5
Initial issue
Status Indicator RAPs
OF 1-5 AC Power Off RAP
NOTE: Normal operation for the printer when the power is switched off is for AC power to
remain applied to all power supplies for approximately 6 seconds for DC 2240/1632 and 25
seconds for the DC 3535
Use this RAP to troubleshoot problems with the machine when one of the following occurs:
• The machine does not switch off
• The machine switches off instantly when the power switch is switched off
Initial Actions
Remove the Top Cover (REP 14.1). Ensure that the linkage for the Main Power Switch is func-
tioning correctly (PL 10.2).
Procedure
Switch on the power and allow the printer to reach the Ready state. Switch off the power. The
printer shuts down immediately. (Refer to Figure 1.)
YN
Check the following:
•Go to Flag 4 and Flag 5. Check the wires for an open circuit.
• If the wires are good, go to Flag 1Flag 1 and check the wire for a short circuit to
ground.
• Check for continuity across the Main Power Switch (FS68 to FS56) Replace the
Main Power Switch if it is defective (PL 10.2).
• Replace the Relay PWB (PL 9.2).
• If the problem continues, replace the MCU PWB (PL 13.1).
Check the following:
•Go to Flag 4 and Flag 5. Check the wires for a short circuit to ground.
•Go to Flag 2 and Flag 3. Check the wires for an open circuit.
•Go to Flag 1 and Flag 6. Check the wires for an open circuit.
• Replace the Relay PWB (PL 9.2).
• If the problem continues, replace the MCU PWB (PL 13.1).
Figure 1 OF 1-5 RAP Circuit Diagram - AC Power ON
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