Digital BW, The Print

Steve,

The damper is the white polyethylene part between the head and the ink 
tube. It has a transparent polyester membrane that keeps the ink 
pressure equal to the surrounding atmosphere. It also acts as an ink 
buffer. There's a SS sieve inside to keep any filth, agglomerated 
pigment particles, etc from the head. That might be clogged up but in 
your case it is more likely something wrong in the ink line or cart slot 
connector. I would say put a cart filled with hand warm distilled or 
demineralised water in the K slot. Cut of some tabs on the cart if you 
do not have a K cart available but another one. Try pulling that water 
through the tube.  Some Windex in the water may help. If that doesn't 
work one of the magical cleaning fluids more often discussed here may do 
the job.

-- 
Met vriendelijke groeten,   Ernst


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> Okay I have now taken the plastic cover off the head and taken a closer look.  Not good.  I've got zero ink in the K line for at least 9 inches back from the head and it looks patchy at the other end also.  I've tried withdrawing ink/air from the end of the line at the head/damper? end to no avail.  (What's a damper?)  Maybe I just need to keep going a lot more. I'll take a look at the nipple where the cartridge meets the printer but it isn't exactly readily accessible.
> 
>  
>> Steve,
>>
>> If air is getting into a line it is more like an underpressure develops 
>> in that line. Could it be that for one reason or another no ink flows 
>> from the cart to the head?  If that head doesn't get ink it can't pull 
>> more ink through the line either. The more it has to print the more the 
>> faulty supply shows. Take out the cart. Shake it thoroughly. Make sure 
>> it is full. Pull some ink out the cart with a syringe. Insert the cart 
>> again. Pull some ink through the line with a syringe from the damper 
>> side. If the resistance is high it could be the cart slot blocked or 
>> even the line. Clean or replace the damper.
>>
>> -- 
>> Met vriendelijke groeten,   Ernst
>>
>>
>> New: Dinkla Canvas Wrap Actions
>>
>> |      Dinkla Grafische Techniek      |
>> |         www.pigment-print.com        |
>> |                 ( unvollendet )                 |
>>
> 
> 
> 


-- 
Met vriendelijke groeten,   Ernst


New: Dinkla Canvas Wrap Actions

|      Dinkla Grafische Techniek      |
|         www.pigment-print.com        |
|                 ( unvollendet )                 |