Troubleshooting Guide
SM 6-3 D037/D038/D040/D041
Trouble-
shooting
6.3 TROUBLESHOOTING GUIDE
See "Appendices" for the following information:
 Image Quality
 Line Position Adjustment
 Image Problems at Periodical Intervals
6.3.1 SUB-SCAN MAGNIFICATION ERROR
If a sub-scan magnification error of an image occurs on an output, follow the procedure
below to adjust the sub-scan magnification.
Sub-scan Magnification Adjustment Procedure
1. Adjust the sub-scan magnification for each paper type and print mode with the
following SPs.
 Input the same value in these SP settings. Otherwise, color registration errors
occur on outputs and this cannot be recovered by the line position adjustment.
 SP1-803-001: Plain paper/ 600 dpi Input
 SP1-803-002: Plain paper/ 1200 dpi Input
 SP1-803-003: Thick paper Input
2. Turn the main power of the machine off and on.
3. Check if all settings of the following SPs are "0" (success).
 SP1-803-004: Plain paper/ 600 dpi Result
 SP1-803-005: Plain paper/ 1200 dpi Result
 SP1-803-006: Thick paper Result
 If one of the settings of SP1-803-004 to 006 is "1" (error), return to step 1 and
then input a value which is closer to "0" compared with the previously input
value.
 For example, if "+0.9" is input in the settings of SP1-803-001 to 003 and an
error occurs, input "+0.8" or less with SP1-803-001 to 003.
 For example, if "-0.9" is input in the settings of SP1-803-001 to 003 and an
error occurs, input "-0.8" or more with SP1-803-001 to 003.
 If an error still remains, refer to "Motor Speed Adjustment".
4. Execute the line position adjustment (rough) with SP2-111-003.
5. Execute the line position adjustment (fine) with SP2-111-001.
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