Gestetner A294, Service Manual

Page: 453 / 600

COPY IMAGE ADJUSTMENT: PRINTING/SCANNING
SM 6-123 A294/A295
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6.13.3 SCANNING
NOTE: 1) Before doing the following scanner adjustments, check the printing
registration/side-to-side adjustment and the blank margin adjustment.
2) Use an OS-A3 test chart to perform the following adjustments.
Registration: Platen Mode
1. Place the test chart on the exposure glass and make a copy from one of the
feed stations.
2. Check the leading edge and side-to-side registration, and adjust them using the
following SP modes if necessary.
SP mode
Leading Edge SP4-010
Side-to-side SP4-011
Magnification
NOTE: Use an OS-A3 test chart to perform the following adjustment.
Scanner Sub Scan Magnification
1. Place the test chart on the exposure glass and make a copy from one of the
feed stations.
2. Check the magnification ratio, and adjust it using the following SP mode if
necessary. The specification is within
±
1%.
SP mode
Scanner Sub Scan Magnification SP4-008
B
A
A294R635.WMF
A
A294R636.WMF
A: Leading Edge Registration
B: Side-to-side Registration
A: Sub Scan Magnification
Rev. 02/2000
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA