e-STUDIO520/600/720/850 ADJUSTMENT March 2005 © TOSHIBA TEC
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[B] Adjustment of the magnification ratio of the lens
Notes:
• Perform this adjustment only when the lens unit is taken off or replaced.
• Make sure that the primary scanning reproduction ratio (printer section) is correct before this
adjustment.
(1) Place a ruler on the original glass (in the primary scanning direction) and make a copy on A4/LT-
sized paper at 100% reproduction ratio.
(3) If each mark on the rulers differs, perform the adjustment with the following procedures.
<Procedure>
(2) Compare the copied ruler with the actual
ruler.
Fig.3-35
(1) Take off the original glass and lens cover.
(2) Loosen 4 screws fixing the lens unit.
Fig.3-36
Feeding Direction
Actual rulerCopied ruler
Lens unit
Screw
Screw
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