Is this an ink flow sensor? (Ink Jet printer)

No diode effect measured. Resistance between each of the 6 pairs of "probes"
is 100K ohms. This, of course, is the measurement of the parallel SMD
resistor.
Click to expand...
A correction: R1, R5, R6 measure 100K; R2, R3, R4 measure 200K. This is true
of 2 different PCBs (the "subject" printer and a used spare), both from
printers with the same error code.

Maybe a manufacturing error (ie, these were supposed to all be the same
value)?

Ideas?

Thanks.
 
On Jan 28, 2:01 am, "TheM" <DontNeedS...@test.com> wrote:

I had a HP inkjet fax with several hundred MB of driver bloatware.
It refused to print B/W fax and complained colour cartridge was empty.
It has a separate B/W cartridge that was full. Sounds like their firmware
and software was written by sales people.
Click to expand...
True enough. If the printer gets set in 'photography' mode, the black
hues
get printed with an excess of color ink, sometimes. I had a LONG
session
getting a printer reset after that happened, the menu selections were
demonically incomprehensible. And, of course, it used three
expensive
color inks instead of the cheap black ink, until the problem was
fixed.
 
DaveC ha scritto:
No diode effect measured. Resistance between each of the 6 pairs of "probes"
is 100K ohms. This, of course, is the measurement of the parallel SMD
resistor.

A correction: R1, R5, R6 measure 100K; R2, R3, R4 measure 200K. This is true
of 2 different PCBs (the "subject" printer and a used spare), both from
printers with the same error code.

Maybe a manufacturing error (ie, these were supposed to all be the same
value)?

Ideas?

Thanks.
Click to expand...
Hi.
In that printer there is a sensor that can verify the presence or air
bubbles in the ink circuit.
I don't know if your piece is that sensor, but there is.
I am trying to fix a C6180 with the wll known ink system failure
problem: i can't find the service manual but i think i can have a
failure of the pump motor or of the circuit that control this motor.
The pump is located (in my case) in the left side of the printer (facing
the control panel) and (my thought) there is no sign of life of the
related motor even if i switch off and on the printer.
I am not sure about that: maybe this pump works only when a new set of
cartridge is installed in the printer (initialization) but, in my case
(following the instructions found on the net), i was not able to force a
cycle to eliminate trapped air.
If you have any solution, please, msg to me.
Thx
Slang
>
 
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