Black print quality problems bh C452

myster

Technician

50+ Posts

Join Date: Oct 2011

Posts: 79
#1

Black print quality problems bh C452

05-05-2023, 01:37 PM

Hello guys, let's see if you can help me, I have an old BH c452 that when it prints halftones with the black unit leaves zebra stripes (see attached) The graduation test of 255 looks good, but if I take a test at 180 looks fatal
any ideas?
I have changed black drum and black developer unit, but the problem continues.

Thank you202305051434.pdf 202305051434.pdf
Tags: black, c452, quality, test, unit
blackcat4866

Master Of The Obvious

Site Contributor
10,000+ Posts

Join Date: Jul 2007

Posts: 22751
#2

05-05-2023, 02:37 PM

Re: Black print quality problems bh C452

Is the whole drum unit new, including the primary charge? Used parts probably will not be much better. =^..^=

If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.

blackcat: Master Of The Obvious =^..^=
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