Ricoh Pro 8310 - Page 146

1.SC Codes
138
Pattern
B
Error Condition
Upper limit sensor detected that the bottom plate was lifted too much when paper is set.
Major Cause
 Power of downstream unit is not turned on.
 Tray is overloaded.
 Paper feed belt unit is not set, or not set properly.
 Upper limit sensor is defective or not connected properly.
 Harnesses are damaged.
 PCB is defective.
 Upper limit sensor 1 is defective or not connected properly
 Upper limit sensor 2 is defective or not connected properly.
Solution
In addition to checking for sensor/actuator defect by eye, also execute Input/Output Check as
necessary.
1. Check if the tray is overloaded.
If so, set the paper correctly.
2. Check the paper feed belt unit.
Set the unit correctly, and turn the main power OFF and then ON.
3. Check the connectors of the harnesses related to excessive lifting of the bottom plate (lower limit
sensor / paper height middle sensor / upper limit sensors 1, 2)
Reconnect the connectors. Turn the main power OFF and then ON.
4. Check the electrical components related to excessive lifting of the bottom plate (lower limit sensor /
paper height middle sensor / upper limit sensors 1, 2)
If they are defective, replace them. Turn the main power OFF and then ON.
5. Check the harnesses (lower limit sensor / paper height middle sensor / upper limit sensors 1, 2)
If the harnesses are defective, replace the harnesses.
6. Check the mechanical components related to excessive lifting of the bottom plate (tray bottom
plate / lift motor / feeler)
If they are defective, replace them. Turn the main power OFF and then ON.
7. Replace the main PCB.
SC507-26 to 31
Error Name
 507-26: Vacuum Feed LCIT 2 Tray 2 Front Side Fan Error