Tech Service Bulletin No. AFICIO 5106/5206 - 005
Page 5 of 5
11. Decrease the setting by one or two notches from the center of the UCR adjustment in the User Tools.
NOTE:
UCR adjustment in User Tools is retained even if the main switch is turned "OFF".
12. Check the copy quality in normal mode and, if applicable, confirm proper operation of OHP and/or
Thick Paper mode(s).
13.
END.
The following Service Tips assist in preventing Soft Toner Blocks
• Before adding new developer, thoroughly vacuum and clean the entire Development Unit with a soft dry
cloth, to remove any hardened or compressed toner.
NOTE:
When vacuuming, ground the development unit case or remove the TD sensor (this prevents
damage to the TD sensor).
• Before adding new developer, be sure to shake the developer bag at least 20 times, to break up any soft
toner blocks that may have occurred during the storage of the Developer.
• Replace
all filters at the appropriate PM interval.
• Ensure the proper operation of all fans. If a sorter is connected be sure to check that the sorter exhaust
fan is operating.
• If the Toner Hopper is not completely pushed to the appropriate position or the Tank Unit Stopper is
broken, the Toner Exit Tube of the Toner Hopper may not be properly engaged with the Development Unit. In
this case, toner is not supplied properly to the Development Unit. When the Toner Hopper transport coil
rotates, it compresses toner around the tube resulting in the formation of soft toner blocks. Therefore,
ensure that the Toner Hopper is set correctly.
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