243
, Drum Section
chap.4
(4)
Adjusting the Platemaking Start Position
2. When in Online
Before adjustment
¡Adjust the platemaking start position when in online after the paper feed cam position ,
printing position sensor and master attachment / detachment position
are adjusted.
Adjustment procedure
1) Perform platemaking and printing of the online test pattern. Adjust with the HELP mode, H-16 so that the
basic line is positioned ± 3mm from the top end of the paper.
\See page 230\See page 228
\See page 227
IMPORTANT
Paper ejection direction
Draw a line at the position
30mm from the top end of
the document
Printing
paper
Document
Basic line of the
printed sample
Document basic line
Match this corner with sath other
1. When the Scanner Is in Use
Before adjustment
¡Adjust the platemaking start position with the scanner in use after the paper feed cam position
, printing position sensor , plate attachment / detachment position
and top end reading start position are adjusted.
\See page 242\See page 230
\See page 228\See page 227
IMPORTANT
Adjustment procedure
1) Set the printing position (top and bottom direc-
tion) to the standard.
2) Draw a line at the position 30mm from the top
end of the document and prepare a basic docu-
ment as shown in the figure.
3) Compare the processed image with the basic doc-
ument. Check the difference of the lines in the
secondary-scanning direction.
4) Adjust with the HELP mode, H-37 so that L1 -
L2 ± 3mm.
Adjusting direction
¡L1<L2 / Upward
¡L1>L2 / Downward
HELP mode H-37 \ see p.341
30mm
¡Standard document
L1
L2
HELP mode H-16 \ see p.317
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