Reading Start Position; Adjusting The Top End Reading Start Position Adjustment Procedure; Adjusting The Lateral (Operation Side) Reading Start Position - Ricoh DD5450 Field Service Manual

Chapter 5 Electrical System
8

(3) Reading Start Position

1. Adjusting the Top End Reading Start
Position Adjustment procedure
Adjustment procedure
1. Mark with 1 mm interval up to 5 mm from
the top end of the paper to prepare a test
document.
2. Perform master making and printing to the
same size and to two printouts.
3. Make adjustment by "3. SCAN LEAD EDGE
START POSITION" of HELP-042 so that
printing starts at 2 mm from the document lead
edge on the second print paper.
HELP-042 → See page 343
2. Adjusting the Lateral (Operation Side)
Reading Start Position
Adjustment procedure
1. Make a basic document (as shown in the
figure) from a sheet of paper*.
Draw a 100 mm line at the position 30 mm
from the right end and from the top end of the
paper*.
*DD5450: A3 paper
*DD5440: B4 paper
2. Compare the printed image with the basic
document.
Check the difference between the straight lines
in the vertical direction.
3. Make adjustment by "4. SCANNER
HORIZONTAL READING CENTER(mm)" of
HELP-042 so that the following equation holds.
L1−L2 ≤ ±1 mm
HELP-042 → See page 343
Adjusting direction
● L1<L2: The value is decreased.
● L1>L2: The value is increased.
250
Document
Mark with 1 mm
interval from
the top end of
the document
Make sure that the second printing starts
at 2 mm from the document lead edge.
● Basic document
Printing paper
Document
Document basic line
Basic line of the printed sample
Print
Print ejection
direction
Mark this corner
with each other