Ricoh DD 5450, Field Service Manual, Page: 239 / 403

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Chapter 5 Paper Feed Section
Adjustment procedure
1. Pull out the drum while the drum is in the stop
position.
2. Loosen the eccentric shaft fixing screw and
adjust so that the clearance between the timing
roller and the guide roller becomes 0.5 mm.
● For description of operation
Standard value
Check the clearance between the timing roller
and the guide roller.
Item Standard value
Clearance between timing roller
and guide roller
0.5 mm
(4) Adjusting the G Roll Escape
Amount/Timing
Guide roller
Timing roller
Fixing screw
Eccentric shaft
→ See page 129
0.5mm
(5) Top Margin Adjustment
Top margin
6-7 mm
Paper line
Vertical reg.
encoder
sensor
Screw
Vertical reg. center sensor
Vertical reg.
limit sensor
Adjustment procedure
1. Access HELP-030.
2. Touch "TEST PATTERN 2".
3. Press the (MASTER MAKING) key. Print the
test pattern.
4. Adjust the Vertical reg. center sensor so that
the top margin of the paper is 6 - 7 mm.
TEST PATTERN 2
HELP-030 → See page 339
Item Standard value
Top margin 6 - 7 mm
● After adjusting the Vertical reg. center sensor,
press the RESET key to return the print
position to the center.
3
REFERENCE
REFERENCE