10-382 Stand By External Heat Roll Not Ready Rap; 10-383 Job Complete External Heat Roll Not Ready Rap - Xerox DocuColor 12/DCCS50 Service Manual

10-382 Stand By External Heat Roll Not Ready RAP

The External Heat Roll Lamp was On continuously for 1 minute during the Standby Mode, but
the External Heat Roll did not reach operating temperature.
Initial Actions
Refer to BSD 10.3 and 10.12 for the following procedure.
Procedure
Cheat the Front Door Interlock. Switch on the power. Enter dC330 010-029 External Heat Roll
Lamp. Press Start. ACH is measured momentarily between P/J100-1 on the SSR and
J15-1 on the AC Driver PWB (ACN into AC Driver PWB).
Y N
Go to the OF10-5 External Heat Roll AC Power
Open the drawer. Remove the cheater on the Front Door Interlock. Measure the resistance
across the External Heat Roll Heater Rod ( P/J193-1 to P/J196-1). The resistance is less
than 10 Ohms.
Y N
Replace the External Heat Roll Heater Rod
Measure the resistance across the External Heat Roll Thermostat. The resistance is less
than 10 Ohms.
Y N
Replace the External Heat Roll Thermostat
Switch off the power. Cheat the Front Door Interlock Switch. Disconnect
Drive PWB. Check the resistance between J413-A13 and J413-A11 of the harness. The resis-
tance should be in the range of 0.78K ohms when the Heat Roll is hot, to 150K ohms when
cool (room temperature). The resistance is within specification.
Y N
Disconnect P/J175 on the External Heat Roll Control Thermistor. The resistance should
be in the range of 0.78K ohms when the Roll is hot, to 150K ohms when cool (room tem-
perature). The resistance is within specification.
Y N
Replace the External Heat Roll Control Thermistor
Go to Flag 6 and Flag 4 of BSD 10.3. Check for an intermittent open circuit or short circuit
to ground.
Check the following:
• Check the External Heat Control Thermistor for cleanliness, damage and excessive wear
at the point where the Thermistor contacts the Heat Roll. Ensure that it is installed cor-
rectly.
• If the surface of the Thermistor is worn, replace the External Heat Roll Control Thermistor
(PL 8.8).
• Inspect the surface of the Heat Roll for excessive wear due to the Thermistor. Replace the
Pressure Roll if necessary (PL 8.8).
If the problem continues, replace the External Heat Roll Control Thermistor
persists, replace the IOT Drive PWB (PL
Reissue
DocuColor 12/DCCS50
RAP.
(PL 8.8).
(PL 8.8).
P/J413A
(PL 8.8).
(PL 8.8). If the fault
9.2).

10-383 Job Complete External Heat Roll Not Ready RAP

The External Heat Roll Lamp was On continuously for 3 minutes after the current job com-
pleted, but the External Heat Roll did not reach operating temperature.
Initial Actions
Refer to BSD 10.3 and 10.12 for the following procedure.
Procedure
Cheat the Front Door Interlock. Switch on the power. Enter dC330 010-029 External Heat Roll
P/ Lamp. Press Start. ACH is measured momentarily between P/J100-1 on the SSR and
J15-1 on the AC Driver PWB (ACN into AC Driver PWB).
Y N
Go to the OF10-5 External Heat Roll AC Power
Open the drawer. Remove the cheater on the Front Door Interlock. Measure the resistance
across the External Heat Roll Heater Rod ( P/J193-1 to P/J196-1). The resistance is less
than 10 Ohms.
Y N
Replace the External Heat Roll Heater Rod
Measure the resistance across the External Heat Roll Thermostat. The resistance is less
than 10 Ohms.
Y N
Replace the External Heat Roll Thermostat
from the IOT Switch off the power. Cheat the Front Door Interlock Switch. Disconnect
Drive PWB. Check the resistance between J413- A13 and J413-A11 of the harness. The resis-
tance should be in the range of 0.78K ohms when the Heat Roll is hot, to 150K ohms when
cool (room temperature). The resistance is within specification.
Y N
Disconnect P/J175 on the External Heat Roll Control Thermistor. The resistance should
be in the range of 0.78K ohms when the Roll is hot, to 150K ohms when cool (room tem-
perature). The resistance is within specification.
Y N
Replace the External Heat Roll Control Thermistor
Go to Flag 6 and
to ground.
Check the following:
• Check the External Heat Control Thermistor for cleanliness, damage and excessive wear
at the point where the Thermistor contacts the Heat Roll. Ensure that it is installed cor-
rectly.
• If the surface of the Thermistor is worn, replace the External Heat Roll Control Thermistor
(PL 8.8).
• Inspect the surface of the Heat Roll for excessive wear due to the Thermistor. Replace the
Pressure Roll if necessary
If the problem continues, replace the External Heat Roll Control Thermistor
persists, replace the IOT Drive PWB
1/05
10-382 Stand By External Heat Roll Not Ready RAP,
2-169
RAP.
(PL 8.8).
(PL 8.8).
(PL
Flag 4 of BSD 10.3. Check for an intermittent open circuit or short circuit
(PL 8.8).
(PL 9.2).
P/
P/J413A from the IOT
8.8).
(PL 8.8). If the fault
Status Indicator RAPs