On Sat, 25 Jun 2016 20:24:27 -0700, Jeff Liebermann
wrote:
(...)

Mo

You might want to try calibrating the document scanner:
http://manualmachine.com/hp/laserjet-3200-all-in-one/195531-service-manual/page:20/
http://manualmachine.com/hp/laserjet-3200-all-in-one/195531-service-manual/page:21/

In the document scanner calibration, it proclaims:

2 Before recalibrating the document scanner, open the
document scanner and place a page that contains the
black or white lines between the guides, just above
the contact image sensor glass. The black or white
line points to a portion of the glass that requires
extra attention.

3 Clean the contact image sensor glass at the point
indicated by the black or white line.

6 If the vertical black or white line appears on the
copy of the demonstration page, continue with steps 7
through 13 below.

13 Line up the calibration graph with a newly copied
page. If the dip in the calibration graph corresponds
to the black or white line, the contaminant is likely
internal and the contact image sensor assembly should
be replaced.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558