• Code: C6103
• Description: Slider over running. The scanner home sensor (PS201) detects the scanner at its home position during a period of time that begins with the time when a prescan command and a scan preparation command are executed and ends when a home return command is executed.
• Causes: • Scanner home sensor (PS201) • Scanner motor (M201) • MFP board (MFPB)
• Remedy: 1. Correct or change the scanner drive (pulley, gear, belt) if it is faulty. 2. Correct the scanner motor set screw if loose. 3. Adjust [Image Position: Leading Edge] and [Sub Scan Zoom Adj.]. 4. Check the connector between M201-relay CN151-MFPB CN25E for proper connection and correct as necessary. 5. Check the connector between PS201-MFPB CN21E for proper connection and correct as necessary. 6. PS201 I/O check, sensor check • Control signal: MFPB CN21E-15 (ON) • Location of electrical component: 22-J 7. M201 operation check • Control signal: MFPB CN25E-1 to 4 • Location of electrical component: 21-J 8. MFPB F15E conduction check 9. Replace MFPB. NOTICE • Link to the wiring diagram (N.1. bizhub C287/C227) • Link to the layout drawings for related parts by each trouble code (S.67. C6102, C6103)

• Code: C6704
• Description: Image input time out. Image data is not input from the scanner to the MFP board (MFPB).
• Causes: • CCD unit • MFP board (MFPB) • CCD board (CCDB)
• Remedy: 1. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Bus Check] -> [Scanner -> Memory], and conduct the memory bus function. 2. Check the connector between CCDB PJ1-MFPB CN7 for proper connection and correct as necessary. 3. Replace MFPB. 4. Replace the CCD unit. NOTICE • Link to the layout drawings for related parts by each trouble code (S.68. C6704, C6751, CDF50, CDF70, CDFA0)

• Code: C6751
• Description: CCD gain adjustment failure. • The adjustment value is 0 or 255 during a CCD clamp adjustment. • The peak value of the output data is 64 or less during a CCD gain adjustment.
• Causes: • LED exposure unit • CCD unit • CCD board (CCDB) • MFP board (MFPB)
• Remedy: 1. Check the connector between CCDB PJ1-MFPB CN7 for proper connection and correct as necessary. 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. 5. Replace the CCD unit. 6. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.68. C6704, C6751, CDF50, CDF70, CDFA0)

• Code: C6752
• Description: ASIC clock input error (front side). When starting the machine, verification on reading and writing the predetermined value for image processing ASIC on CCD board (CCDB) was conducted, and verification failure was detected.
• Causes: • CCD unit • CCD board (CCDB) • MFP board (MFPB)
• Remedy: 1. Correct the harness connection of CCDB if faulty. 2. Replace the CCD unit. 3. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.69. C6752)

• Code: C6756
• Description: CCD power-supply voltage malfunction. Power is not supplied to CCD after the lapse of a given period of time after the main power switch or power key is turned ON or the machine recovers from the sleep mode.
• Causes: • CCD unit • CCD board (CCDB) • MFP board (MFPB) • DC power supply (DCPU)
• Remedy: 1. Correct the harness connection between CCDB PJ1-MFPB CN7 if faulty. 2. Correct the harness connection between MFPB CN1E-DCPU CN005 if faulty. 3. Replace the CCD unit. 4. MFPB F1E conduction check 5. Replace MFPB. 6. Replace DCPU. NOTICE • Link to the layout drawings for related parts by each trouble code (S.70. C6756)

• Code: C6F01
• Description: Scanner sequence trouble 1. The original transport interval becomes shorter than the predetermined value due to an original transport control error in original reading in DF.
• Causes: • MFP board (MFPB) • DF control board (DFCB)
• Remedy: 1. Correct the harness connection between MFPB CN22E-relay CN2DF-DFCB J21 if faulty. 2. Replace DFCB. 3. Replace MFPB. NOTICE • Link to the layout drawings for related parts by each trouble code (S.71. C6F01)

• Code: C8101
• Description: Before reading pressure welding alienation mechanism (When DF-628 is installed). • During a pressure motion being performed, the original reading sensor (PS4) output does not change from H to L. • During a retraction motion being performed, the original reading sensor (PS4) output does not change from L to H.
• Causes: • Reading roll release motor (M5) • Original reading sensor (PS4) • DF control board (DFCB)
• Remedy: 1. Check the connector between M5-DFCB J18 for proper connection and correct as necessary. 2. Check the connector of M5 for proper drive coupling and correct as necessary. 3. Check the connector between PS4-DFCB J10 for proper connection and correct as necessary. 4. PS4 I/O check, sensor check • Control signal: DFCB J10-3 (ON) • Location of electrical component: DF-628 2-G 5. M5 operation check • Control signal: DFCB J18-4 to 5 • Location of electrical component: DF-628 2-G 6. Replace M5. 7. DFCB F9 conduction check. 8. Replace DFCB. NOTICE • Link to the wiring diagram (N.2.1 DF-628) • Link to the layout drawings for related parts by each trouble code (S.72. C8101)

• Code: C8107
• Description: Glass cleaning mechanism trouble (When DF-628 is installed) The original reading glass cleaning sensor (PS12) is not turned ON after the set period of time has elapsed after the glass cleaning motor (M4) is turned ON.
• Causes: • Glass cleaning motor (M4) • Original reading glass cleaning sensor (PS12) • DF control board (DFCB)
• Remedy: 1. Check the connector between M4-DFCB J8 for proper connection and correct as necessary. 2. Check the connector of M4 for proper drive coupling and correct as necessary. 3. Check the connector between PS12-DFCB J15 for proper connection and correct as necessary. 4. PS12 I/O check, sensor check • Control signal: DFCB J15-5 (ON) • Location of electrical component: DF-628 3-G 5. M4 operation check • Control signal: DFCB J8-1 to 4 • Location of electrical component: DF-628 1 to 2-B 6. Replace M4. 7. Replace DFCB. NOTICE • Link to the wiring diagram (N.2.1 DF-628) • Link to the layout drawings for related parts by each trouble code (S.73. C8107)