Description: IDC sensor failure. • When adjusting the IDC sensor, output voltage detected for all eight sample patterns are above 4.9 V. • When adjustment is complete, sensor's output voltage with selected light intensity is under 1.0 V. • During image stabilization (gamma correction control), detected output value for IDC sensor did not go below threshold (half the value of what is detected by IDC sensor on the belt surface) for three consecutive times (position of the pattern end is not detected). • During image stabilization (gamma correction control), sensor's output value for hyper 0 gradation after the primary approximation is half the detection level on the belt surface or under.
Causes: • IDC sensor/Fr (IDCS/Fr) • MFP board (MFPB) • High voltage unit/1 (HV1) • Transfer belt unit
Remedy: 1. Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty. 2. Replace the transfer belt unit if the transfer belt is damaged. 3. Reinstall or reconnect IDCS/Fr, sensor shutter or connector, if it is installed or connected improperly. 4. Clean IDCS/Fr if it is dirty. 5. Check the HV1 connector for proper connection and correct as necessary. 6. Open/close the front door, run an image stabilization sequence, and select [State Confirmation] -> [Level History 1] to check the IDC value. If the value is 1.0 V or less, replace IDCS/Fr. • IDC1: IDCS/Fr 7. MFPB F12E, F13E or IC80E conduction check 8. Replace MFPB.
Code: P-9
Description: Drum/Development unit failure. All density readings taken from the density pattern produced on the transfer belt are 1.0 g/m2 (IDC sensor photo receiver output) or less during max. density adjustment (Vg/Vdc adjustment).
Causes: • Drum unit • Developing unit • Transfer belt unit • High voltage unit/1 (HV1) • IDC sensor/Fr (IDCS/Fr) • MFP board (MFPB)
Remedy: 1. Select [Imaging Process Adjustment] -> [Max Image Density Adj] and, if the setting value is negative, readjust. 2. Check the drive transmission portion of the drum unit and developing unit, and correct as necessary. 3. Clean the IDC sensor/Fr window if dirty. 4. Clean the contact of the drum unit connector and developing unit connector if dirty. 5. Check the HV1 connector for proper connection and correct as necessary. 6. Replace the drum unit. 7. Replace the developing unit. 8. Replace the transfer belt unit. 9. Replace HV1. 10. MFPB F12E or IC80E conduction check 11. Replace MFPB.
Code: S-1
Description: CCD gain adjustment failure. It is detected that the CCD clamp gain adjustment value is faulty.
Causes: • LED exposure unit (LU201) • Scanner drive board (SCDB) • CCD board (CCDB) • MFP board (MFPB)
Remedy: 1. Correct the harness connection between CCDB and MFPB if faulty. 2. Check for possible extraneous light and correct as necessary. 3. Clean the lens, mirrors, CCD surface, and shading sheet if dirty. 4. Correct reflective mirror of the scanner if faulty, or change scanner mirror. 5. Replace the CCD unit. 6. Replace SCDB. 7. Replace MFPB.
Code: S-2
Description: CIS gain adjustment failure. It is detected that the CIS clamp gain adjustment value is faulty.
Remedy: 1. Correct the harness connection between CIS and DSIPB if faulty. 2. Correct the harness connection between DSIPB and MFPB if faulty. 3. Check for possible extraneous light and correct as necessary. 4. Wipe clean the back side scanning glass surface and shading sheet. 5. Replace CIS. 6. Replace DSIPB. 7. Replace MFPB.