I’ve recently bought a new P600 on ebay that turned out to be anything but. With a fair amount of work I’ve managed to get all channels firing and all nozzles printing. After switching to piezoflush cartridges to flush the epson ink out of the system I’ve noticed significant amounts of color staining on various channels. After head cleans did not deal with the problem I’ve moved to printing flush images. Those seemed to have greatly improved the situation, but I want to double check whether I’m right in thinking that I still have a ways to go in removing the cast.
Attached image is a test print using piezoflush. Am I right in thinking that everything under ‘alignment wheel’ should be the exact same color? And to be more exact, somewhere along the lines of what yellow is printing?
I ran out of piezoflush (the P600 sure drinks a lot), so have to wait a bunch of days until I get a new batch. But would like to know if I’m doing right to spray more of it away like this or not.
No because only the yellow is nearly pure single channel piezoflush. The “cyan” will be printed using both cyan channels and some of the magenta channel possibly light black channel, etc… The EPSON is an RGB channel and you can not select 100% cyan and get only ink or piezoflush from the cyan channel. Instead it is first converted to RGB and then whatever color lookup table associated with your method of printing settings determines how much C, LC, M, Y, LK is required to most approximate that color.
Having said that, the most efficient way to clear a P600 is by the INITIAL FILL procedure as outlined on any of our PiezoFlush product pages. It uses strong suction and does no electric stimulation to the head and can not damage it as would printing when air is present or using powerful cleanings when air is present (as in clogged jets.)
Hi Jon, Thanks for the reply. The CMYK > RGB thing makes sense.
I’m not trying to clear a clog. I was trying to remove ink staining. My nozzle checks are coming out perfect.
And the first thing I did when I put my piezoflush cartridges in was to do an initial fill to pull the piezoflush through. But as far as I know I can only do this once per cartridge cycle right? Unless the cartridge reads near full the printer won’t allow an initial fill command? As it stands I’m waiting on more piezoflush to arrive to refill the cartridges, but I guess I’ll print a flush pattern for all channels tomorrow and if they look the same I’ll just move to my piezography cartridges and hopefully finally start doing something useful with the printer.
You should be good to go. If you are in any doubt print out the QuadToneRIP / CurveDesign / Images / inkseparation8.tif using QTR in Calibration Mode and that will print a 21 step for each individual channel. Then it should be all the same pink…
Of course the two black inks share the same ink channel and are switched inside the ink selector unit. So try a few black ink mode changes to make sure you have both MK and PK unless you are only planning on printing only on matte or only on baryta/glossy.
Sadly I’m not as ready as I hoped I would be. There seems to be a fair amount of color difference between the lines. To the extent that I can’t judge which one is ‘clean’. I guess I’ll have to wait till my piezoflush arrives to run another fill to see if that clears up the situation.
yup - a lot of residual pigment staining - so the 48 hour or so wait while in PiezoFlush can be very very effective. The second INIT Fill should pull it out…
InkjetMall Information
Why buy from us
My InkjetMall account
Contact Info