• Code: 1120 ... 1123
• Description: 1120 ROM checksum error (bit 0 ~ 7) 1121 ROM checksum error (bit 8 ~ 15) 1122 ROM checksum error (bit 16 ~ 23) 1123 ROM checksum error (bit 24 ~ 31)
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • CODE ROM(C309PROG)ÇÃåšä² • Replace the mounted CODE ROM with another one for checking. Replace the CONTROLLER PWB. Go to step 3 3 • Clearing/updating the Program: • Clear the installed DIMM forcibly and update the program to the latest one in the DIMM. • Clear the new DIMM forcibly and update the program in the DIMM. Replace or reinstall the relevant part. Problem solved

• Code: 113
• Description: Fuser Unit malfunction (No Fuser Unit)
• Remedy: 1 • Initial checking: Is there any parts of wrong specifications used, improper mounting, damage, distortion, dirt, or adherence of foreign matter? • Major parts to be checked: FUSER ASSY, MCU PWB, FUSER HARNESS ASSY, FUSER CONNECTOR Replace or reinstall the relevant part. Go to step 2 2 • Checking whether the problem lies in engine or controller: Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed normally with the engine alone? Check the Printer Controller. (If an error still occurs after replacing, go to step 3.)] Go to step 3 3 • Checking for proper mounting of FUSER ASSY: Is the FUSER ASSY properly mounted? • Check by removing and reinstalling the FUSER ASSY. • With the tool: Go to step 4 • Without the tool: Go to step 5 Replace the faulty part(s). 4 • Checking the FUSER ASSY detection circuit: Is the FUSER ASSY detection circuit functioning properly? . By using the diagnostics commander, check by Digital Input Test device code "4B". Go to step 5 Replace the MCU PWB-XL 5 • Checking the power supply to FUSER ASSY detection circuit: Is the voltage 5 VDC between P19B-5PIN . P19B-6PIN? Go to step 6 Replace the MCU PWB-XL 6 • Checking the FUSER ASSY detection signal Is the voltage between P/J19A-8PIN . P/J19A- 7PIN 0 VDC with the FUSER ASSY installed and 5 VDC without FUSER ASSY? Replace the MCU PWB-XL Go to step 7 7 • Checking for continuity of FUSER HARNESS ASSY Is there normal continuity between J71A . J78? Go to step 8 Replace the FUSER HARNESS ASSY 8 • Checking continuity of FUSER CONNECTOR Is there normal continuity between P71 . J19? Go to step 9 Replace the FUSER CONNECTOR 9 • Replacing the FUSER ASSY and Performing Checks Replace the FUSER ASSY. Is the problem solved? Problem solved Replace the MCU PWB-XL

• Code: 1180 ... 1185
• Description: 1180 Optional ROM module A checksum error *Only AcuLaser C8600 1181 Optional ROM module B checksum error *Only AcuLaser C8600 1185 Unsupported ROM module *Only AcuLaser C8600
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the DIMM: • Insert the DIMM in the socket until it is locked securely. NOTE: Since the DIMM has the right direction and location for insertion, be sure to insert it in the correct direction and location. • Check if the DIMM is available for this printer, AcuLaser C8600. In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1200, 1210
• Description: 1200 EEPROM write error 1210 EEPROM write count limit
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the EEPROM: • “Error C1200”... Execute “SelecType Init” in the Panel Setting, or replace EEPROM. • “Error C1210”...Replace EEPROM. In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1400
• Description: Engine initialization malfunction
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Initializing the MCU PWB: • By using the DIAG command, execute “Slave Initialize”. Turn the power off once and on again. Does the printer operate normally? Problem solved Go to step 3 3 • Replacing the relevant unit: • Replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1500
• Description: CCNV hardware error
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1550
• Description: Compression SRAM initialization hardware error
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Checking the SD-RAM: • Remove all SD-RAMs from the RAM slots and then reinsert them in the RAM slots. Be sure to insert the SD-RAMs one by one (S0 and S1) in order so that the SD-RAM error can be identified. Every time you insert an SD-RAM, follow the procedures below and repeat it for each one. 1 Turn the power off. 2 Add the SD-RAM. 3 Turn the power on. • Insert the SD-RAM in the socket until it is locked securely. NOTE: Since the SD-RAM has the right direction to insert, be sure to insert it in the correct direction. Replace or reinstall the relevant part. Go to step 3 3 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved

• Code: 1600
• Description: Video related hardware error (including PWM IC calibration error)
• Remedy: 1 • Initial setting: • Remove all the optional units and modules related to the electrical system and bring the printer back to the standard status. • Check if all connectors are properly connected to the CONTROLLER PWB. Replace or reinstall the relevant part. Go to step 2 2 • Replacing the IC concerned: • Replace IC603 for AcuLaser C8600 or IC600 for AcuLaser C7000 (VIPS: E05B93BA) • Replace IC602 for AcuLaser C8600 or IC601 for AcuLaser C7000 In cases other than above, replace the CONTROLLER PWB. Replace or reinstall the relevant part. Problem solved