• Code: C94
• Description: Firmware update error: An error message appears when firmware for e-STUDIO166/206 is updated on e- STUDIO163/203 by mistake, and the power is turned OFF and then back ON after the update.
• Remedy:

• Code: C97
• Description: High-voltage transformer abnormality: Leakage of the main charger is detected.
• Remedy: (1) Is the main charger installed securely? (2) Check if the spring of high-voltage supply contact point is deformed. (3) Check if the needle electrode is broken or the main charger grid is deformed. (4) Check if any foreign matters is on the needle electrode or the main charger grid. (5) Is the transfer/separation charger installed securely? (6) Check if the transfer/separation charger wire is broken or unhooked. (7) Check if any foreign matter is on the transfer/separation charger wire.

• Code: CA1
• Description: Polygonal motor abnormality: The polygonal motor is not rotating normally
• Remedy: Is the polygonal motor rotating?
  NO 1) Check if the connector of the harness is disconnected between MAIN board (CN24) and the laser optical unit. 2) Check if the harness is open circuited and the connector pin is disconnected. 3) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 4) Replace the laser optical unit. 5) Replace the MAIN board.
  YES 1) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 2) Replace the MAIN board.

• Code: CA2
• Description: H-Sync detection error: H-Sync detection PC board cannot detect laser beams.
• Remedy: Are the harness open circuited and the connectors disconnected or misconnected between the MAIN board (CN21, CN22) and laser optical unit?
  YES Replace the harness. Connect the disconnected connectors.
  NO 1) Replace the MAIN board. 2) Replace the laser optical unit.

• Code: E01
• Description: Jam not reaching the exit sensor: The paper which has passed through the fuser unit does not reach the exit sensor.
• Remedy: Open the transfer cover. Is there any paper on the transport path?
  YES Remove the paper.
  NO Is the exit sensor working? (Perform the input check in the test mode: 03-[INTERRUPT]OFF/[9]/[5])
  NO 1) Check if the connector of the exit sensor is disconnected. 2) Check if the connector CN17 on the MAIN board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 5) Replace the exit sensor. 6) Replace the MAIN board.
  YES Is the registration roller clutch working? (Perform the output check in the test mode: 04-108/158)
  NO 1) Check if the connector of the registration roller clutch is disconnected. 2) Check if the connector CN26 on the MAIN board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 5) Replace the registration roller clutch. 6) Replace the MAIN board.
  YES 1) Check the registration roller. Replace it if it is worn out. 2) Check if the aligning amount is appropriate. An [E01] error occurs both when the amount is too large and too small.

• Code: E02
• Description: Stop jam at the exit sensor: The trailing edge of the paper does not pass the exit sensor after its leading edge has reached this sensor.
• Remedy: Open the transfer cover. Is there any paper on the transport path?
  YES Remove the paper. NO Is the exit sensor working? (Perform the input check in the test mode: 03-[INTERRUPT]OFF/[9]/[5])
  NO 1) Check if the connector of the exit sensor is disconnected. 2) Check if the connector CN17 on the MAIN board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 5) Replace the exit sensor. 6) Replace the MAIN board.
  YES Is the registration roller clutch working? (Perform the output check in the test mode: 04-108/158)
  NO 1) Check if the connector of the registration roller clutch is disconnected. 2) Check if the connector CN26 on the MAIN board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 5) Replace the registration roller clutch. 6) Replace the MAIN board.
  YES 1) Check the registration roller. Replace it if it is worn out. 2) Check if the aligning amount is appropriate. An [E01] error occurs both when the amount is too large and too small.

• Code: E03
• Description: Power-ON jam: The paper is remaining on the paper transport path when power is turned ON.
• Remedy: Open the cover of the unit/area whose picture is blinking on the control panel. Is there any paper on the transport path? (Refer to the following table.)
  YES Remove the paper. NO Is the sensor in the jamming area working? (Perform the input check in the test mode: refer to the following table.)
  NO 1) Check if the connector of the sensor is disconnected. 2) Check if any of the connectors on the MAIN board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the MAIN board is short circuited or open circuited. 5) Replace the sensor. 6) Replace the MAIN board.
  YES Replace the MAIN board.
  Relation between the jamming area and the corresponding sensors and covers (If a jam is occurring in the PFU, check the PFU board.)
  Registration area Transfer cover Registration sensor 03-[INTERRUPT]OFF/[9]/[6]
  Exit area Transfer cover Exit sensor 03-[INTERRUPT]OFF/[9]/[5]
  PFU PFU side cover PFU feed sensor 03-[INTERRUPT]OFF/[7]/[5]

• Code: E09
• Description: Other paper jam
• Remedy: Jam at the registration area due to registration timeout error