Ricoh MP C6502SP Field Service Manual page 1061

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Error Name/Error Condition/Major Cause/Solution

Detected a lock signal which indicates overcurrent in the toner supply

bottle motor.

The lock signal is generated when the toner supply bottle motor current

exceeds 500 mA.

When a toner supply bottle motor is on, it is checked every 100

milliseconds for lock signals. The following steps are executed every

• If the lock signal was detected 9 times in 10 samplings, the lock

counter increases by one. When the lock counter value is 23 or

larger, the SC is issued.

• If the lock signal was detected 8 times or less in 10 samplings, the

lock counter is cleared.

• If the samplings end before reaching the tenth time (due to bottle

replacement etc.), the lock counter value is kept as is. Sampling

starts again the next time the motor runs.

• The lock counter is cleared when the machine is turned off (also

when the machine enters sleep mode, in which the plotter is turned

off) or when an SC is issued.

• Toner bottle not set correctly or the torque is large.

• Toner bottle broken or defective

• Motor defective

• Toner bottle not set correctly, toner bottle broken, or large torque:

After the machine stops, ask the user to remove the toner bottle,

shake it and set it again. Then cycle the machine off/on to return

from SC status.

• Toner bottle broken or defective: Ask the user to remove the toner

bottle and set a normal bottle. Then cycle the machine off/on to

return from SC status.

• Motor defective: Turn off the machine and replace the motor. Then

cycle the machine off/on to return from SC status.

Error Name/Error Condition/Major Cause/Solution

Developer Set Error (K)

Service Call 300-398

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