Ricoh Aficio 2035e Service Manual page 195

Code No.
510 C LCT tray malfunction
1) The LCT lift sensor does not
activate for more than 18
seconds after the LCT lift motor
turned on.
2) The LCT lower limit sensor does
not activate for more than 18
seconds after the LCT lift motor
turned on.
3) The LCT lift sensor is already
activated when the LCT lift
motor turns on.
4) After the paper end sensor is
actuated while the tray is
raising, the upper limit sensor is
not actuated within 5 s. A
message is displayed to remind
the user to set the paper and
tray control halts. Resetting the
display is done by opening and
closing the LCT door.
5) The 4) state has been detected
3 times in succession.
520 C Fusing/Feed-Out Motor Error
The PLL lock signal remains LOW for 2
s while the feed development motor is
operating.
541 A Fusing thermistor open
The fusing temperature detected by the
thermistor was below 7°C (44.6
seconds, or 2 seconds after reaching
o
45 C (113
reach an additional 15
checking five times at 0.1 intervals.
542 A Fusing temperature warm-up error
The fusing temperature does not reach
the fusing standby temperature of 45
o
(113 F) within 9 seconds for the B135
(35 cpm) 14 seconds for the B138 (45
cpm) after switching on the main power
or closing the front cover, or 40
seconds after reaching 50
roller does not reach warm-up
temperature.
543 A Fusing overheat error (software
detection)
A fusing temperature of over 230°C
o
(446 F) is detected for 5 seconds by the
fusing thermistors at the center or at
either end of the fusing roller.
SM
Symptom
o
F) for 5
o
F) the temperature does not
o o
C (59 F) after
o
C the fusing
4-9
SERVICE CALL CONDITIONS
Possible Cause
• LCT lift motor defective or
disconnected.
• Upper limit sensor defective or
disconnected
• Pick-up solenoid defective or
disconnected
• Paper end sensor defective
• Motor lock caused by overload.
• Motor driver defective.
• Fusing thermistor disconnected
• Fusing thermistor connector defective
• Fusing thermistor damaged or
warped
• Fusing temperature –15% less than
the standard input voltage
• Fusing lamp defective
• Poor fusing unit connector
o
• Thermistor warped or broken
C
• Thermostat has tripped
• BICU defective
• Power supply board defective
• Power supply unit defective
• I/O board (IOB) defective
• BICU defective
• Fusing thermistor defective
B135/B138