L TROUBLESHOOTING > 3. TROUBLE CODE
L-46
d-Color MF4003/MF3303
3.12.10C6902, C6903, C6912, C6913
Contents
Trouble type • C6902: Bus check NG1-1
• C6903: Bus check NG1-2
• C6912: Bus check NG2-1
• C6913: Bus check NG2-2
Rank C
Trouble detection condition • C6902, C6903: When bus check (front side) detects an error.
• C6912, C6913: When bus check (back side) detects an error.
Trouble isolation -
Relevant electrical parts • CIS module (IR CIS)
• DF CIS module (DF CIS)
• CPU board (CPUB)
• Base board (BASEB)
Procedure
1. Check the connector between IR CIS-BASEB CN6 for proper connection and correct as necessary.
2. Check the connector between DF CIS-BASEB CN5 for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace CPUB.
5. Replace BASEB.
3.12.11C6F01, C6F02, C6F03, C6F04, C6F05, C6F06, C6F07, C6F08, C6F09, C6F0A, C6FDC, C6FDD
Contents
Trouble type • C6F01: Scanner sequence trouble 1
• C6F02: Scanner sequence trouble 2
• C6F03: Scanner sequence trouble 3
• C6F04: Scanner sequence trouble 4
• C6F05: Scanner sequence trouble 5
• C6F06: Scanner sequence trouble 6
• C6F07: Scanner sequence trouble 7
• C6F08: Scanner sequence trouble 8
• C6F09: Scanner sequence trouble 9
• C6F0A: Scanner sequence trouble 10
• C6FDC: Scanner sequence trouble DC
• C6FDD: Scanner sequence trouble DD
Rank • C6F01 to C6F0A: C
• C6FDC, C6FDD: B
Trouble detection condition The original transport interval becomes shorter than the predetermined value due to an original transport control
error in original reading in DF.
Trouble isolation Scanner
Relevant electrical parts • CPU board (CPUB)
• Base board (BASEB)
• DF control board (DFCB)
Procedure
1. Correct the cable connection between BASEB CN6E-DFCB CN9 if faulty.
2. Check CPUB for proper installation and correct as necessary.
3. Replace DFCB.
4. Replace CPUB.
5. Replace BASEB.
3.13C7###
3.13.1C7111
Contents
Trouble type C7111: Tray 1 lift-up motor failure
Rank C
Trouble detection condition After starting the motor, an error is detected for the malfunction detection signal.
Trouble isolation Tray 1
Relevant electrical parts • Tray 1 lift-up motor (M6)
• Base board (BASEB)
Procedure
1. Check the connector between M6-BASEB CN19E for proper connection and correct as necessary.
2. Check the connector of M6 for proper drive coupling and correct as necessary.
3. M6 conduction check
• Control signal: BASEB CN19E-7 to 8
• Location of electrical component: 10-C
4. Replace M6.
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