Vertical White Line - Ricoh B173 Service Documentation

4.6.2 VERTICAL WHITE LINE

Description
White vertical voids in the image.
Check and Cause
Foreign matter stuck onto the window
of internal lenses of LSU mirror.
Foreign matter or toner particles
between the developer roller and blade.
(In case the life of the developer has
been expired, white lines or light image
occur in front of the image.)
It may occur when a Burr and foreign
substances are on the window of the
developer frame.
If the fuser is defective, voids occur
periodically at the top of a black image.
SM
PRINTING QUALITY PROBLEMS
Solution
Clean the LSU window with
recommended cleaner(IPA) and a
clean cotton swab.
Open the cover of LSU and clean with
a cotton swab on the surface of the
reflex mirror with a clean cotton swab.
Remove the foreign matter and burr of
the exposure window. (Developer
cartridge)
Open the front cover and check if the
ribs correspond to the position of the
voids. Remove if found.
If the problems are not solved, replace
the AIO.
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B173T914.WMF
B173