Code :

Code: C-6717
Description: N-in-1 page area abnormality. Due to an image area abnormality of the memory, images cannot be developed on the memory.
Causes: Image processing board (IPB)
Remedy: 1. After turning OFF the sub power switch, turn OFF the main power switch and unplug the power plug. Restart the main body after 10 seconds. 2. Check the connector connection and the wiring on IPB, and repair it if any abnormality. 3. Rewrite the firmware for image control. 4. Replace IPB.

Code: C-6719
Description: The original skew adjustment is too late. The scan operation starts before the original skew adjustment is terminated.
Causes: • Original skew sensor /Fr (PS312: DF-615/616) • Original skew sensor /Rr (PS311: DF-615/616) • DF control board (DFCB: DF-615/616) • Overall control board (OACB: main body)
Remedy: 1. Check the original skew sensor, and repair it if any abnormality. (Wiring diagram: DF-615/616: 2-E, 1-E) 2. Check the connector connection and the wiring between DFCB and the sensor, and repair it if any abnormality. 3. Check the connector connection and the wiring between DFCB and OACB, and repair it if any abnormality. 4. Conduct the DF paper skew adjustment of the mechanical adjustment to correct the original skew. 5. Conduct [Service mode]-[Process adjustment]-[ADF Skew Offset Adj.] 6. Replace PS311 or PS312. 7. Replace DFCB 8. Replace OACB.

Code: C-6721
Description: AGC retry. The AGC is retried due to the decreased light volume of the exposure lamp. However, no error occurs.
Causes: • Exposure lamp (L4) • L4 inverter (L4_INVB) • Scanner drive board (SDB) • CCD board (CCDB)
Remedy: 1. Check the reading section, and repair it if any abnormality such as cover off. 2. Check the connector connection and the wiring between IPB and CCDB, and repair it if any abnormality. 3. Check the connector connections and the wirings between SDB and L4_INVB, and L15_INVB and L16, and repair it if any abnormality. (Wiring diagram: Main body (4/4): 15-M, 16-J, 17-J) 4. When L4 is high-light intensity, low-light intensity or does not light, replace L4. 5. When L4 is high-light intensity, low-light intensity or does not light after replacing L4, replace L4_INVB. 6. Replace CCDB.

Code: C-6801
Description: Initial communication error between the image processing board (OACB) and the operation board /1 (OB1). An initial communication from the main body to the operation panel is not sent within 30 seconds after the power is turned ON.
Causes: • Operation board /1 (OB1) • Overall control board (OACB)
Remedy: 1. After turning OFF the sub power switch, turn OFF the main power switch and unplug the power plug. Restart the main body after 10 seconds. 2. Check the connector connection and the wiring between OB1 and OACB, and repair it if any abnormality. 3. Check the connector connection and the wiring of the operation panel, and repair it if any abnormality. 4. Replace OACB. 5. Replace OB1.

Code: C-8001
Description: Sending error between the main body and DF. Although the main body sent out data according to the data transmission request by the DF, the same request is received again.
Causes: • DF control board (DFCB: DF-615/616) • Overall control board (OACB: main body) DIPSW18-4
Remedy: 1. Check the connector connection and the wiring between DFCB and OACB, and repair it if any abnormality. 2. Replace DFCB 3. Replace OACB.

Code: C-8002
Description: Reception error between the main body and DF. Checksum error or SRGA reception error is detected twice in succession while in the reception in serial communication.
Causes: • DF control board (DFCB: DF-615/616) • Overall control board (OACB: main body) DIPSW18-4
Remedy: 1. Check the connector connection and the wiring between DFCB and OACB, and repair it if any abnormality. 2. Replace DFCB 3. Replace OACB.

Code: C-8003
Description: Initial communication error between the main body and DF. When the main power switch (SW1) is ON, there is no response to the initial communication request from the main body to the DF even after a specified period of time elapses.
Causes: • DF control board (DFCB: DF-615/616) • Overall control board (OACB: main body) DIPSW18-4
Remedy: 1. Check the connector connection and the wiring between DFCB and OACB, and repair it if any abnormality. 2. Replace DFCB 3. Replace OACB.

Code: C-8201
Description: Tray up-down motor (M305) abnormality.
Causes: Tray up down motor (M305: DF-615/616) DIPSW18-4
Remedy: 1. Check the original tray up/down section, and repair it if any abnormality. 2. Check the connector connection and the wiring between DFCB and the motor, and repair it if any abnormality. 3. Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: DF-615/616 : 5- C) 4. Replace M305. 5. Replace DFCB