Ricoh B286, Service Manual

Page: 209 / 622

SP Adjustments
SM 3-81 B286/B289
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CIS Main/Sub Scan Offset Adjustment [0 to 2047/638/1]
SP4972
Problem Joint Effect
1
Main Scan Offset:
Interval 1-2
CIS 1-2 CIS 1 moves. CIS 2 does not move.
2
Main Scan Offset:
Interval 2-3
CIS 2-3 CIS 3 moves. CIS 2 does not move.
3
Main Scan
Offset :Interval 3-4
CIS 3-4 CIS 4 moves. CIS 3 does not move.
4
Main Scan Offset:
Interval 4-5
CIS 4-5 CIS 5 moves. CIS 4 does not move.
11
Sub Scan Offset:
Interval 1-2
CIS 1-2 CIS 1 moves. CIS 2 does not move.
12
Sub Scan Offset:
Interval 2-3
CIS 2-3 CIS 3 moves. CIS 2 does not move.
13
Sub Scan Offset:
Interval 3-4
CIS 3-4 CIS 4 moves. CIS 3 does not move.
14
Sub Scan Offset:
Interval 4-5
CIS 4-5 CIS 5 moves. CIS 4 does not move.
! After completing the CIS adjustments, be sure to reset SP4973-3 to “0.”
3.11.3 LPH ADJUSTMENT WITH SP CODES
Doing SP Adjustment Settings for a Replacement LPH
1. Remove the replacement LPH from its box.
2. Read the label attached to the replacement LPH and note of the settings for SP2952
and SP2943.
! This label is attached to the replacement LPH only.
3. Remove the old LPH and install the new LPH unit. (See section 3.3.3 “LPH (LED Print
Head)”)