• Code: EF18
• Description: Saddle Stitch Finisher additional folding roller home position detection abnormality: The additional folding roller home position cannot be detected. [MJ-1108]
• Causes: Additional folding home position sensor (S39) Additional folding motor (M20) Saddle controller board
• Remedy: Additional folding carrier • Is there any mechanical problem when the additional folding carrier is moved? Additional folding home position sensor (S39) • Sensor check • Connector check • Harness check Additional folding motor (M20) • Motor check • Connector check • Harness check Saddle controller board • Connector check (CN18, CN19) • Board check

• Code: EF19
• Description: Saddle paper folding jam: Fold processed paper cannot be transported to the additional folding roller. [MJ-1108]
• Causes: Exit transport sensor (S41)
• Remedy: Finisher • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher? Exit transport sensor (S41) • Sensor check • Connector check • Harness check Saddle controller board • Connector check (CN19) • Board check

• Code: EF20
• Description: Saddle stacker jam: Transported paper cannot be detected in the stacker. [MJ-1108]
• Causes: Stacker paper detection sensor (S30) Saddle controller board
• Remedy: Finisher • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher? Stacker paper detection sensor (S30) • Sensor check • Connector check • Harness check Saddle controller board • Connector check (CN19) • Board check

• Code: F070
• Description: Communication error between System-CPUand Engine-CPU
• Causes: LGC board SYS board LED head HRNS-LGC-DEV-212 HRNS-LGC-DRM-212 HRNS-LGC-ADU-212 HRNS-DRV-SFBTRU-212
• Remedy: Error code • Turn the power OFF and then back ON using the main power switch, and then check if the error code changes to another one. • If it changes to another one, follow the procedure for the changed error code. Check firmware version • Check the version of the system firmware on the SYS board. • Check the version of the engine firmware on the LGC board. Board check • Check if the connector CN128 on the SYS board and the connector CN350 on the LGC board are completely inserted. • Check if the connector pin between the SYS board (connector CN128) and the LGC board (connector CN350) is disconnected. • Check if the connectors CN380, CN381, CN382, CN383, CN384, CN385, CN386 and CN387 of the LED head are completely inserted, and the harness is disconnected or open circuited. • Check if the conductor patterns on the LGC board and SYS board are short circuited or open circuited HRNS-LGC-DEV-212 HRNS-LGC-DRM-212 HRNS-LGC-ADU-212 HRNS-DRV-SFBTRU-212 • Connector check • Harness check

• Code: F071
• Description: Communication initialization error betweenSystem-CPU and Engine-CPU
• Causes: LGC board SYS board LED head Harness of LED head (flat cable) Harness of LED head (power supply)
• Remedy: 1 LED head, harness 1-1. Disconnect all the harnesses (flat cable and power supply) of the LED heads, and then turn the power ON. Check if the error changes to another service call (CE80 etc.). (CN380 to CN387) 1-2. If the error does not change to another service call such as CE80 in step 1-1, go to step 2. If the error changes to another service call, follow the steps below. 1-3. Connect the harnesses of the LED head to the LGC board single color at a time, and then turn the power ON to identify the LED head in error. Check if F071 occurs. Place the parts causing the error. Check the connectors and harnesses of the color in error. <Harness (flat cable) - LGC board> Y color: CN382 M color: CN380 C color: CN386 K color: CN384 <Harness (power supply) - LGC board> Y color: CN383 M color: CN381 C color: CN387 K color: CN385 <Harness (flat calbe) - LED head> Y color: CN592 M color: CN593 C color: CN594 K color: CN595 <Harness (power supply) - LED head> Y color: CN596 M color: CN597 C color: CN598 K color: CN599 2 Check firmware version • Check the version of the system firmware on the SYS board. • Check the version of the engine firmware on the LGC board. 3 Board check • Check if the connector CN128 on the SYS board and the connector CN350 on the LGC board are completely inserted. • Check if the connector pin between the SYS board (connector CN128) and the LGC board (connector CN350) is disconnected. • Check if the connectors CN380, CN381, CN382, CN383, CN384, CN385, CN386 and CN387 of the LED head are completely inserted, and the harness is disconnected or open circuited. • Check if the conductor patterns on the LGC board and SYS board are short circuited or open circuited

• Code: F090
• Description: SRAM abnormality on the SYS board
• Causes: SRAM on the SYS board SYS board
• Remedy: SRAM Check the connection of SRAM 1. Turn the power OFF, and start up the Setting Mode (08). 2. When “SRAM REQUIRES INITIALIZATION” is displayed on the LCD, check the destination and then press the [START] button. If the destination is not correct, key in the correct one and then press the [START] button. (SRAM is initialized.) 3. After the confirmation message is displayed, press the [INTERRUPT] button. 4. Perform the panel calibration (08-9050). 5. Enter the serial number (08-9601). Match it with the serial number on the label attached to the rear cover of the equipment. 6. Initialize the NIC information (08-9083). 7. Turn the power OFF and then start up with the Adjustment mode (05). 8. Perform “Data transfer of characteristic value of scanner” (05-3203). 9. Perform “Automatic gamma adjustment” <PPC> (05-7869). (using [4][FAX] test pattern) 10.Perform “Automatic gamma adjustment” <PRT> (05-8008). (using [70][FAX] test pattern) 11.Turn the power OFF and then back ON. SYS board Board check

• Code: F100_0
• Description: HDD format error: Operation of HDD key data fails.
• Causes:
• Remedy: Setting Reboot the equipment. If it cannot be recovered, reinstall the software in the following procedure. 1. Install the system firmware.

• Code: F100_1
• Description: HDD format error: Encryption key data of either the SYS board or the SRAM board for the SYS board are damaged.
• Causes:
• Remedy: Encryption key status Check the displayed message. ([3] + [C] + [POWER] → 5. Key Backup Restore)