Code :

Code: 092-661
Description: IOT Environment Sensor Error Detect Environment Sensor Error
Causes: • Laser Unit (PL2.1.1) • Top Harness Assembly (PL18.2.5) • LVPS (PL18.1.34) • MCU Board (PL18.1.13)
Remedy: 1 Check the Laser Unit connection Check the connection between the Laser Unit and the MCU Board, and the connection between the Laser Unit and the PWBA LVPS. Are P/J36, P/J11, and PJ43 connected securely? Go to step 2. Connect P/J36, P/J11, and PJ43 securely. 2 Check the continuity between the LVPS and the Laser Unit Is each cable of P/J43<=>P/J431 continuous? Go to step 3. Replace the Top Harness Assembly. 3 Check the power to the Laser Unit (+5 VDC) Close the interlock switch(es), and check if the voltage between the LVPS ground and the P/J43-2 pin is about +5 VDC. Go to step 4. Replace the LVPS. 4 Check the power to the Laser Unit (+24 VDC) Close the interlock switch(es), and check if the voltage between the MCU Board ground and the P/J36-1 pin is about +24 VDC. Go to step 5. Refer to “+24 VDC Power FIP”. 5 Check the power to the Laser Unit (+3.3 VDC) Check if the voltage between the MCU Board ground and the P/J11-1 pin is about +3.3 VDC. Go to step 6. Refer to “+3.3 VDC Power FIP”. 6 Check after replacing the Laser Unit Replace the Laser Unit. Does the error still occur? Replace the MCU Board. Finished.

Code: 092-670
Description: Yellow Patch Error IOT could not recovery toner density.
Causes: • Yellow Imaging Unit (PL8.1.2) • Yellow Toner Cartridge (PL5.1.8) • MCU Board (PL18.1.13)
Remedy: 1 Check after reinstalling the Toner Cartridge Pull out and shake the Yellow Toner Cartridge, and then reinstall it. Does the error still occur? Go to step 2. Finished. 2 Check after replacing the Toner Cartridge Replace the Yellow Toner Cartridge. Does the error still occur? Go to step 3. Finished. 3 Check the Imaging Unit installation Take out the Yellow Imaging Unit. Is the connection part of the Yellow Imaging Unit clean? And, is the Yellow Imaging Unit touching against the guides on the left and right sides, and installed properly? Go to step 4. Clean the connection part. Reinstall the Yellow Imaging Unit. 4 Check after replacing the Yellow Imaging Unit Replace the Yellow Imaging Unit. Does the error still occur? Replace the MCU Board. Finished.

Code: 092-671
Description: Magenta Patch Error IOT could not recovery toner density.
Causes: • Magenta Imaging Unit (PL8.1.3) • Magenta Toner Cartridge (PL5.1.9) • MCU Board (PL18.1.13)
Remedy: 1 Check after reinstalling the Toner Cartridge Pull out and shake the Magenta Toner Cartridge, and then reinstall it. Does the error still occur? Go to step 2. Finished. 2 Check after replacing the Toner Cartridge Replace the Magenta Toner Cartridge. Does the error still occur? Go to step 3. Finished. 3 Check the Imaging Unit installation Take out the Magenta Imaging Unit. Is the connection part of the Magenta Imaging Unit clean? And, is the Magenta Imaging Unit touching against the guides on the left and right sides, and installed properly? Go to step 4. Clean the connection part. Reinstall the Magenta Imaging Unit.

Code: 092-672
Description: Cyan Patch Error IOT could not recovery toner density.
Causes: • Cyan Imaging Unit (PL8.1.4) • Cyan Toner Cartridge (PL5.1.10) • MCU Board (PL18.1.13)
Remedy: 1 Check after reinstalling the Toner Cartridge Pull out and shake the Cyan Toner Cartridge, and then reinstall it. Does the error still occur? Go to step 2. Finished. 2 Check after replacing the Toner Cartridge Replace the Cyan Toner Cartridge. Does the error still occur? Go to step 3. Finished. 3 Check the Imaging Unit installation Take out the Cyan Imaging Unit. Is the connection part of the Cyan Imaging Unit clean? And, is the Cyan Imaging Unit touching against the guides on the left and right sides, and installed properly? Go to step 4. Clean the connection part. Reinstall the Cyan Imaging Unit. 4 Check after replacing the Cyan Imaging Unit Replace the Cyan Imaging Unit. Does the error still occur? Replace the MCU Board. Finished

Code: 092-673
Description: Black Patch Error IOT could not recovery toner density.
Causes: • Black Imaging Unit (PL8.1.5) • Black Toner Cartridge (PL5.1.11) • MCU Board (PL18.1.13)
Remedy: 1 Check after reinstalling the Toner Cartridge Pull out and shake the Black Toner Cartridge, and then reinstall it. Does the error still occur? Go to step 2. Finished. 2 Check after replacing the Toner Cartridge Replace the Black Toner Cartridge. Does the error still occur? Go to step 3. Finished. 3 Check the Imaging Unit installation Take out the Black Imaging Unit. Is the connection part of the Black Imaging Unit clean? And, is the Black Imaging Unit touching against the guides on the left and right sides, and installed properly? Go to step 4. Clean the contact point. Reinstall the Black Imaging Unit.

Code: 093-320
Description: IOT Deve Motor Fail Detect Developer Motor Failure
Causes: • Developer Motor [Drive Assembly] (PL3.1.1) • Drive Harness Assembly (PL18.2.2) • Top Harness Assembly (PL18.2.5) • LVPS (PL18.1.34) • MCU Board (PL18.1.13)
Remedy: 1 Check the Developer Motor operation Execute Digital Output diagnostic test 093-001, and check the Developer Motor rotation. Does the Developer Motor function normally? Replace the MCU Board. Go to step 2. 2 Check the Developer Motor connection Check the connection between the Developer Motor and the MCU Board. Are P/J331 and P/J33 connected securely? Go to step 3. Connect P/J331 and P/J33 securely. 3 Check the continuity between the Developer Motor and the MCU Board Is each cable of P/J331<=>P/J33 continuous? Go to step 4. Replace the Drive Harness Assembly. 4 Check the power to the Developer Motor (+24 VDC) Close the interlock switch(es), and check if the voltage between the MCU Board ground and the P/J33-2 pin, and the voltage between the MCU Board ground and the P/J33-4 pin is about +24 VDC. Replace the Drive Assembly. Replace the LVPS.