Epson 11880 Pattern Problem

[indyjones]

I have 2 Epson 11880 printers in 2 different department. I use Black Magic rip for the both of them. The one printer in Grand Format is printing a weird pattern in the shadow blacks only, it is not banding. Has any one have this problem?

[jhilldesigns]

ah yes - weird problem - see it daily

j/k - weird problem could mean anything...perhaps a picture would clear it up

[indyjones]

Here is a jpeg of a lin chart.

[Castek Resources]

I have 2 Epson 11880 printers in 2 different department. I use Black Magic rip for the both of them. The one printer in Grand Format is printing a weird pattern in the shadow blacks only, it is not banding. Has any one have this problem?

I assume by your use of the term 'Grand Format' that this is printed in a lower resolution/ faster print mode. It is hard to see from the image, but it could be chromatic banding from bi-directional printing, although you should only be printing with one color (K in this case) on a linearzation chart.

Sorry, I am not terribly familiar with the Blackmagic RIP, aside from knowing that it is a proofing RIP out of Australia.

[indyjones]

Actually I printed this lin chart from Caldra rip, I also get this pattern from Black Magic Rip. I can see this pattern on cyan and magenta as well.

[jmcnicoll]

Does the problem show up on only one type of media?

jim

[indyjones]

Yes

[tgrinds]

Indyjones,
Did you ever resolve this issue?

[reeki]

best , i sometimes see this problem also in the field , several options to look after ,
- flat cabels of printhead
- bad PF motor

best option to test the PF motor is to put on the roll and manualy roll off the paper thats needed for printing , if this sloves the problem u have to change the PF motor.

[indyjones]

Check link out

http://www.luminous-landscape.com/forum/index.php?topic=40225