Konica 7145

[T911]

51-4 code. replaced developer unit and developer and dev motor assly but no luck. did an L detect and it popped a 0005 code after calibration (referencing the developer or main pcb) any other ideas appreciaqted. I know i'm missing something here. Thanks t

[DarthAlbin]

Check the ICPs on the "main" board (not the system board but the driver board. I've seen those blow causing motors to not function. Our guys keep a few on hand to solder in the field.

[CMB]

4.3 L Detection Error Code List
4.4 Network Section Status Indication

For the SCB (System control board), there are two orange and green status indicator LED’s. The table
below shows the status indicated by these two LED’s.
86-2, 86-3 FAX board error FAX Copying and printing remain
enabled.
86-6 FAX file initialization
abnormality
HDD Copying, printing (except a personal
letter) remain enabled.
86-7, 86-8 FL-102/FL-103 board
error
FL-102/FL-103 Copy, FAX (1 line) and printer
can be used.
87-2, 87-3 Printer board abnormalities
Printer Copying and faxing remain
enabled.
Code Cause Clearance method Suspected defective part
0003 The TDS (Toner density sensor) output
ripple at the end of L detection was 0.5V
or less.
SW2 (Sub power
switch)
OFF/ON
• Developing unit connector
• TDS
• CB (Main body control
board)
0004 The TDS output ripple while the developer
is being agitated during L detection
adjustment was 0.02V or less (there is
almost no change in output).
SW2
OFF/ON
• M1 (Main motor)
• Developing agitator
screw
• Developing unit connector
• TDS
• CB
0005 TDS control voltage cannot be adjusted
to within the range 5.76~7.46V.
SW2
OFF/ON2
• Developer
• TDS
• CB
0006 TCSB (Toner control sensor board) output
signal D/A conversion error
SW2
OFF/ON
• CB
• TSCB

[popcornpuppy]

if you've tried changing all of the obvious i recommend updating the firmware. i had the same problem, changed the dev and dev tank which made no difference. my colleague went in, updated the firmware and the machine has been ok for a few months now

[redime]

51-4 code. replaced developer unit and developer and dev motor assly but no luck. did an L detect and it popped a 0005 code after calibration (referencing the developer or main pcb) any other ideas appreciaqted. I know i'm missing something here. Thanks t
Probably control board, 51-4 points to the board and 0005 at l detect points to control board.

Id try the easy stuff first like making sure the dv motor turns...