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Syuk
02-03-2017, 05:25 PM
How to settle that problem
Bhc 280 yellow missing
I already Change drum
And develop
But that problem still have

Please help me and give me some idea

guitar9199
02-03-2017, 05:37 PM
Have you checked and cleaned the laser for that color?

Syuk
02-03-2017, 05:55 PM
Have you checked and cleaned the laser for that color?


Owh think same like u but I already clean laser but still same...I think tomorrow I try Change another laser
Thx for give me ide

copier addict
02-03-2017, 06:23 PM
Which P code is being displayed when you touch the oil can?

Syuk
02-03-2017, 07:53 PM
Which P code is being displayed when you touch the oil can?

Allo can I know what oil

copier addict
02-03-2017, 10:51 PM
Allo can I know what oil

On the screen there is likely an oil can showing, it is a warning. If you touch it with your finger it will display the warning. If it is there it will come up as a "P-XX"

Syuk
02-04-2017, 02:41 AM
On the screen there is likely an oil can showing, it is a warning. If you touch it with your finger it will display the warning. If it is there it will come up as a "P-XX"

That machine no give any warning

REGSIS
02-05-2017, 08:01 AM
That machine no give any warning

Try to run image stabilization, it shoud give you the error on bottom of display (triangle like oil can) press it and it will show you the code.

Syuk
02-05-2017, 09:59 AM
Try to run image stabilization, it shoud give you the error on bottom of display (triangle like oil can) press it and it will show you the code.

That code c2555

Synthohol
02-05-2017, 02:01 PM
Trouble type
Abnormally low toner density detected yellow TCR sensor


Trouble code
C2555


Rank
B


Detection timing
When sampling data is determined in TC ratio calculation control, TCR sensor output is higher than a
predetermined value for a predetermined number of times in a row even though there is toner in the sub
hopper.


Trouble isolation
-


Relevant electrical parts
Developing unit/Y,M,C,K
Toner cartridge/Y,M,C,K
Toner near empty switch/Y (RS4)
Toner near empty switch/M (RS5)
Toner near empty switch/C (RS6)
Toner near empty switch/K (RS7)
Toner cartridge motor/YM (M6)
Toner cartridge motor/CK (M7)
Toner supply motor/YM (M8)
Toner supply motor/CK (M9)
Front side relay board (FREYB)
Printer control board (PRCB)






(2) Procedure


Step
Action
Control signal
Location of electrical components


1
Perform image troubleshooting procedure if image density is
low.
-
-


2
Reinstall developing unit
-
-


3
Reinstall toner cartridge
-
-


4
Check the connector between developing unit-FREYB CN4,
CN6, CN8, CN10 for proper connection and correct as
necessary.
-
-


5
Check the connector between FREYB CN1, CN2-PRCB
CN4, CN5 for proper connection and correct as necessary.
-
-


6
M6, M7 operation check
PRCB CN13-12 to 15 (M6)
PRCB CN13-16 to 19 (M7)
J-21


7
M8, M9 operation check
PRCB CN12-9 to 12 (M8)
PRCB CN12-13 to 16 (M9)
J-10


8
If the toner empty sensor and its surroundings inside the sub
hopper are dirtied with toner, clean them.
-
-


9
Change developing unit
--
-


10
Change FREYB
-
-


11
PRCB ICP3,4 conduction check
-
-


12
Change PRCB
-
-



N.1. bizhub C220/C280/C360
Link to the layout drawings for related parts by each trouble code (S.44. C2551, C2553, C2555, C2557)

REGSIS
02-05-2017, 02:29 PM
Remove yellow drum and yellow developer unt.
On dev unit check magnet roller for developer loss (lower density, voids) compare with other developer units.
Check yellow toner hooper (is it empty or is it full of toner).

Is customer experienced paged fully covered with yellow?

This might be HV unit problem but also can be caused by bad drum unit(s) or overlife drum unit or even transfer belt unit (overlife) or simply dev units reached end of life (or near).

bunchieattia
08-18-2017, 03:45 AM
Hello
There is flex between the Flex that connects to the laser Bin

How to settle that problem
Bhc 280 yellow missing
I already Change drum
And develop
But that problem still have

Please help me and give me some idea

Hansoon
08-18-2017, 07:13 AM
* Off Topic * @ Synthohol: From where did you get that fancy "Schematics"? It's not in MY Tech Manual. Would love to have such for the BH-C-280 series and the BH-363/423 as well............ :)

Hans

Synthohol
08-18-2017, 02:57 PM
page S-50 in the field service manual.
almost every manual has an "S" section parts layout.

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