Hi! Maxify user here...

[PeterBJ]

Looking at the uploaded image "purge.jpg" from post #3 I also thought that a dirty timing strip was the cause of the problem. But then why is only black affected? Coloured and grey vertical stripes are not broken.

 

[faizal]

As requested folks, here's the purge image after cleaning timing strip again(the purge image is actually an output from qimage, http://www.ddisoftware.com/qimage-u/), a software I use to automatically print a page every other day to prevent nozzles drying up when not in use.

It's the same, only black is distorted, actually the timing strip is squeaky clean because maxify chassis is big enough for my entire hand to fit in comfortably with a bright led light, cleaned it multiple times before this with alcohol swab as well as windex (original).

Conclusion:
1. Only black text distorted on standard print on plain paper.
2. Vertical print for text in black is ok, just tested yesterday printing envelops.
3. Convert any document in black into any other color, print normally on standard print.

ps: Thanks for all the interactions, folks, it's good to explore.

 

[stratman]

But then why is only black affected?

My thoughts as well and reason why I said this was likely electrical malfunction.

 

[stratman]

As requested folks, here's the purge image after cleaning timing strip again

Thank you for taking the time to try this. You have added to the knowledge of the forum.

output from qimage

Qimage is a fantastic application.

 

[turbguy]

I the timing encoder is clean, I have no solid answer. It certainly appears to occur during bi-directional printing due to the regular stepwise offsets. Perhaps the print head is "confused" about what nozzles to fire??

The alignment print "should" exhibit evidence of bi-directional offset issues. I would experiment with alternative alignment settings on the black columns, and see if you can influence the offset of text/black lines

 

[faizal]

Guess what folks? After I switch CIS to the new printer, I re-installed original set of cartridges back to the old maxify, but before that, I re-seated the printhead, after 1 round of alignment & cleaning, here's the print results...

... unbelievable, almost good as new!

It might just get to 100,000 pages & why didn't I think of this earlier

Getting a refillable cartridge set for this old one.

 

[stratman]

I re-seated the printhead

Hmmm. Maybe the print head was not locked down. Or could it have something to do with the CIS?

Glad to hear the printer functions well again!