09/03
2-259
DC 3535/2240/1632, WC M24
12-253
Status Indicator RAPs
Initial issue
12-253 Rear Tamper
• With the Rear Tamper Home Sensor off The Rear Tamper Home Sensor did not turn on
within 800ms after move to the Rear Tamper Home position has begun.
• With the Rear Tamper Home Sensor on: The Rear Tamper Home Sensor did not turn off
when the Rear Tamper Home Sensor is deactuating.
Initial Actions
Check for obstructions in the Compiler Tray Assembly.
Procedure
Enter dC330 [012-010] (front) or [12-013] (rear) and press Start. The Rear Tamper (PL 17.10)
moves.
YN
The Rear Tamper Motor (Figure 3) energized.
YN
Press Stop. Remove the Rear Cover (PL 17.5). +24 VDC is measured between P/
J848- B2 and B5 and GND.
YN
Replace the Finisher PWB (PL 17.13).
+24 VDC is measured between P/J848- B1, B3, B4 and B6 and GND.
YN
Check wiring between P/J848 and P/J878 for damage or poor contact. If the
check is OK, replace the Rear Tamper Motor (PL 17.10).
Replace the Finisher PWB (PL 17.13).
Check the Rear Tamper Motor and its associated gear and rack mechanism (PL 17.10)
for load or drive transmission failure (gear wear or breakage). Repair or replace as
required.
Press Stop. Enter dC330 [012-212] and press Start. Open the Top Cover and move the Rear
Tamper manually to actuate the Rear Tamper Home Sensor (PL 17.10). The display
changes.
YN
Press Stop. Check the circuit of the Rear Tamper Home Sensor (Figure 2). Refer to the
OF 99-2 RAP for troubleshooting procedure.
Press Stop.
• Ensure that the connectors shown in the circuit diagrams (Figure 2, Figure 3) are securely
connected and that the wires are not damaged.
• Replace the Rear Tamper Home Sensor (PL 17.10).
• If the problem persists, replace the Finisher PWB (PL 17.13) (Figure 4).
Figure 1 Component Location
Figure 2 12-253 RAP Circuit Diagram - Rear Tamper Home Sensor
Figure 3 12-253 RAP Circuit Diagram - Rear Tamper Motor
Rear Tamper
Home Sensor
Front
Tamper
Home
Sensor
Front Tamper Motor
Connection
Rear Tamper Motor
Connection
Compiler
Paper
Sensor