Kyocera FS-1128MFP Service Manual - Page 127
CPU - ASIC CCD PWB communica
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2JN-1 Code 3500 4000 4200 6000 6020 Contents Causes Remarks Check procedures/corrective measures CPU - ASIC (CCD PWB) communication error An error code is detected. Defective FFC between CCD PWB (YC1) and control PWB (YC8). Replace the image scanner unit (ISU) (See page 1-5-21). Defective CCD PWB. Replace the CCD PWB. Defective control PWB. Replace the control PWB (See page 1-539). Polygon motor (laser scanner unit) error The polygon motor ready input is not given for 6 s during the polygon motor is ON. Defective harness between polygon motor and control PWB (YC10), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. Defective laser scanner unit. Replace the laser scanner unit (See page 15-17). Defective control PWB. Replace the control PWB (See page 1-539). BD error (laser scanner unit) error BD sensor does not detect laser beam due to condensation on the polygon mirror. Turn machine power off for at least 30 minutes, then turn machine on again. If not cured, replace the laser scanner unit (See page 1-5-17). Defective laser scanner unit. Replace the laser scanner unit (See page 15-17). Defective control PWB. Replace the control PWB (See page 1-539). Broken fuser heater lamp wire The fuser temperature does not rise after the fuser heater lamp has been turned on. Poor contact in the fuser thermistor connector terminals. Reinsert the connector (See page 1-5-34). Poor contact in the fuser heater lamp connector terminals. Reinsert the connector (See page 1-5-34). Fuser thermistor installed incorrectly. Replace the fuser unit (See page 1-5-34). Fuser thermal cut- Replace the fuser unit (See page 1-5-34). out triggered. Fuser heater lamp Replace the fuser unit (See page 1-5-34). installed incorrectly. Broken fuser Replace the fuser unit (See page 1-5-34). heater lamp wire. Abnormally high fuser thermistor temperature Fuser thermistor detects abnormally temperature. Shorted fuser ther- Replace the fuser unit (See page 1-5-34). mistor. Defective control PWB. Replace the control PWB (See page 1-539). 1-4-9