• Code: 0670
• Description: Hard disk overwriting erasure error
• Causes: HDD. Main PWB.
• Remedy: HDD 1. If an abnormal noise is heard from the HDD, replace the HDD. 2. Check the SATA wiring between the HDD and the main circuit PWB for loose connection, disconnection and damages, and that it is connected into the correct terminal. Main PWB: YC1,YC27 Replace the SATA cable. 3. Execute U024 to initialize (FULL) the HDD. 4. If an error is detected after executing U024, replace the HDD.
  Main PWB Replace the main PWB.

• Code: 0800
• Description: Image processing error
  The JAM100 fee counter is continuously generated.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: 0830
• Description: FAX control PWB flash program area checksum error
  A checksum error occurred with the program of the FAX control PWB.
• Causes: Defective FAX software. Defective PWB.
• Remedy: Defective FAX software. Install the fax software.
  Defective PWB. 1. Execute initializing by U600.(Refer to the FAX service manual) 2. Replace the FAX control PWB.

• Code: 0840
• Description: Faults of RTC
  The time is judged to go back based on the comparison of the RTC time and the current time or five years or more have passed.
• Causes: The battery is disconnected from the main PWB. Defective PWB.
• Remedy: The battery is disconnected from the main PWB. 1. Make sure that the back-up batteries on the main PWB are not short-circuited. 2. Reset Maintenance T by executing U906. 3. If the same C call is displayed when power is switched on and off, replace the back up battery. 4. If communication error (due to a noise, etc.) is present with the RTC on the main circuit PWB, check the PWB is properly grounded.
  Defective PWB. Replace the main PWB and check for correct operation.

• Code: 0870
• Description: FAX control PWB to main PWB high capacity data transfer error
  High-capacity data transfer between the FAX control PWB and the main PWB of the machine was not normally performed even if the data transfer was retried the specified times.
• Causes: Improper installation FAX control PWB. HDD. Defective PWB.
• Remedy: Improper installation FAX control PWB. Turn the main power swtch off and after 5 seconds, re-mount the FAX controller PWB, then turn power on.
  HDD Execute U024 to initialize the HDD.
  Defective PWB. Replace the FAX control PWB or main PWB and check for correct operation.

• Code: 0920
• Description: Fax file system error
  The backup data is not retained for file system abnormality of flash memory of the FAX control PWB.
• Causes: Defective PWB.
• Remedy: 1. Execute initializing by U600 (Refer to the FAX service manual). 2. Replace the FAX control PWB.

• Code: 0980
• Description: 24 V power down detect
  24V disconnection signal is detected for 1.5 seconds.
• Causes: Defective power source PWB.
• Remedy: 1. Check the +24V output is given at YC12- 1 to 3 of the power circuit PWB. 2. Replace the power source PWB.

• Code: 1010
• Description: Lift motor 1 error
  After cassette 1 is inserted, the lift sensor 1 does not turn on within 15 s. This error is detected five times successively.
• Causes: Defective bottom plate elevation mechanism in the cassette. Defective connector cable or poor contact in the connector. Defective drive transmission system of the lift motor. Defective lift motor. Defective PWB.
• Remedy: Defective bottom plate elevation mechanism in the cassette. Check to see if the bottom plate can move smoothly and repair any problem that is found.
  Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity of the connector cable. If necessary, replace the cable. Lift motor 1 and engine connect PWB (YC6) Engine connect PWB (YC2) and engine PWB (YC4)
  Defective drive transmission system of the lift motor. Check if the gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if necessary.
  Defective lift motor. Replace the lift motor 1.
  Defective PWB. Replace the engine PWB and check for correct operation.