• Code: C8-4210, C8-4310, C8-4313
• Display: Cyan Developer Failure: #C8-4210. Turn off then on Cyan Developer Failure: #C8-4310. Install cyan developer unit again Cyan Developer Failure: #C8-4313. Turn off then on. Please call for service if the problem persists
• Description: The cyan developer unit has a problem with toner supply or sensor calibration.
• Remedy: 1) Open the front cover. 2) Remove the waste toner container. 3) Check if the toner supply pipe is blocked. If it is closed, open it. 4) Install the waste toner container. Close the front cover. 5) Turn the machine off then on. 6) If the problem persists, remove and reinstall the cyan developer unit. 7) If the problem persists, replace the cyan developer unit.

• Code: C8-4410
• Display: Cyan developer unit is not installed. Install it
• Description: The cyan developer unit is not installed.
• Remedy: 1) Open the front cover. 2) Check if all developer unit is installed. Remove and re-install the developer unit.

• Code: C8-5110, C8-5125
• Display: Prepare new black developer unit Replace with new black developer unit. Call for service
• Description: The life of the black developer unit expires soon or has expired.
• Remedy: 1) If its life is at the end, turn the machine off and replace the developer unit with new one.

• Code: C8-5210, C8-5310, C8-5313
• Display: Black Developer Failure: #C8-5210. Turn off then on Black Developer Failure: #C8-5310. Install black developer unit again Black Developer Failure: #C8-5313. Turn off then on. Please call for service if the problem persists
• Description: The black developer unit has a problem with toner supply or sensor calibration.
• Remedy: 1) Open the front cover. 2) Remove the waste toner container. 3) Check if the toner supply pipe is blocked. If it is closed, open it. 4) Install the waste toner container. Close the front cover. 5) Turn the machine off then on. 6) If the problem persists, remove and reinstall the black developer unit. 7) If the problem persists, replace the black developer unit.

• Code: C8-5410
• Display: Black developer unit is not installed. Install it
• Description: The black developer unit is not installed.
• Remedy: 1) Open the front cover. 2) Check if all developer unit is installed. Remove and re-install the developer unit.

• Code: C9-1112, C9-1122, C9-1132, C9-1142
• Display: Replace with new Tray1 pickup roller. Replace with new Tray2 pickup roller. Replace with new Tray3 pickup roller. Replace with new Tray4 pickup roller.
• Description: The life of the pick up/reverse/forward roller for tray1,2,3,4 has expired.
• Remedy: 1) Open the side cover. 2) Remove the cassette while pushing the both sides linkers. 3) Lift small tap, remove the pick up / reverse/ forward roller. 4) Enter SVC mode. To enter SVC mode, press 1,2,3 number keys simultaneously. When the password dialog box appears, enter “1934” and press the “OK” button. 5) Select “Roller” (INFORMATION > Supply Status > Field Replacement Unit > Roller) 6) Select “P/up roller Kit-tray1-4”. The “RESET” button will be activated. Click “RESET” to clear the corresponding pick up roller. 7) Exit SVC mode by pushing the home button.

• Code: C9-1162
• Display: Replace with new MP pickup roller
• Description: The life of the MP roller expires soon or has expired.
• Remedy: 1) Turn the machine off. 2) Release the LEVER-MP LONG(JC66-03501A) from the TRAY-MP MAIN(JC63-03673A). 3) Release the LEVER-MP FRONT and LEVER-MP REAR from the TRAY-MP MAIN. 4) Remove the right cover after releasing the locking pins. 5) Remove 1 screw securing GUIDE-PUSHER DEVE F. 6) Remove 8 screws securing RACKET-R/F COVER RIGHT. 7) Remove 8 screws. Disassemble the DUPLEX from the COVER-RIGHT. 8) Unplug the connector. 9) Turn the MP Assy and remove 2 screws. 10)Remove 4 screws from the MP LOWER GUIDE and MP UPPER GUIDE. 11) Remove the E-Ring. Release the MP-PICK UP(JC90-01167A) from the HOLDER-MP ROLLER(JC61-05282A) 12)Remove the SHAFT-LOCK (JC66-00939A). Remove the COUPLER-TORQUE-LIMITER 500 from the MP-PICK UP. 13)Release and replace the MP-PICKUP RUBBER(JC90-01168A) 14)Assemble the MP unit. 15)Enter SVC mode. To enter SVC mode, press 1,2,3 number keys simultaneously. When the password dialog box appears, enter “1934” and press the “OK” button. 16)Select “Roller” (INFORMATION > Supply Status > Field Replacement Unit > Roller) 17)Select “P/up roller MP”. The “RESET” button will be activated. Click “RESET” to clear the MP pick up roller. 18)Exit SVC mode by pushing the home button.

• Code: C9-2110, C9-2120
• Display: Replace with new Transfer roller
• Description: The life of the second transfer roller(T2) expires soon or has expired.
• Remedy: 1) Open the side cover. 2) Replace the second transfer roller with new one. 3) Close the side cover. 4) Enter SVC mode. To enter SVC mode, press 1,2,3 number keys simultaneously. When the password dialog box appears, enter “1934” and press the “OK” button. 5) Select “TRNASFER” (INFORMATION > Supply Status > Field Replacement Unit > TRNASFER) 6) Select “T2 Roller”. The “RESET” button will be activated. Click “RESET” to clear the T2 roller. 7) Exit SVC mode by pushing the home button.