Ricoh DD 5450, Field Service Manual, Page: 253 / 403

251
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Chapter 5 Electrical System
(4) Adjusting the Master making Start Position
Adjustment procedure
1. Set the printing position (vertical direction) to
the standard.
2. Draw a line at the position 30 mm from the
top end of the document and prepare a basic
document as shown in the figure.
3. Compare the processed image with the basic
document.
Check the difference of the lines in the
horizontal direction.
4. Adjust with HELP-046 (5. M-MARK VERTICAL
START POS) so that the following equation
holds.
L1−L2 ≤ ±1 mm
● Adjust the master making start position
with the scanner in use after the
followings are adjusted.
● Printing position sensor
● Master attach position edge
● Top end reading start position
L2
L1
● Basic document
Printing paper
Document
Mark this corner with each other
Basic line of the
printed sample
Document
basic line
Draw a line at the position 30 mm
from the top end of the document
HELP-046 → See page 351
→ See page 238
1. When the Scanner Is in Use
→ See page 250
→ See page 240
2. When in Online
● Adjust the master making start position
when in online after the followings are
adjusted.
● Printing position sensor
● Master attach position edge
Adjustment procedure
1) Perform master making and printing of the
online test pattern. Adjust with HELP-047 so
that the basic line is positioned ± 1 mm from
the top end of the paper.
HELP-047 → See page 353
Before adjustment
IMPORTANT
Before adjustment
IMPORTANT
→ See page 238
→ See page 240
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