Gestetner B147, Service Manual

Page: 272 / 1081

TROUBLESHOOTING GUIDE
SM 4-70 B147/B149/B190
Adjustment Standard: Max. 150
µ
m
End A
Start
Print out the SMC sheets (SP5-990-002).
SP2-103-055 (M: [K] 64.3 MHz) is ...
Execute the line position adjustment (SP5-993-002).
Less than 250
Less than 2 mm
Print out a pattern with the following settings:
SP5-997-002 "1 dot grid (R)"
SP5-997-004 "Full Color"
SP5-997-005 "600 x 600"
Set the factory settings in the following SPs:
SP2-909-001, 002, and 003
SP2-103-055, 056, 057, and 058
Set the factory settings in the following SPs:
SP2-909-001, 002, and 003
SP2-916-008, 009, and 010
SP2-103-056, 057, and 058
250 or higher
How much do the lines shift?
Has the SP ended normally?
2 mm or more
Yes
Print out a pattern with the following settings:
SP5-997-002 "1 dot grid (R)"
SP5-997-004 "Full Color"
SP5-997-005 "600 x 600"
Do the lines shift?
Yes
No
No
Are the
transfer belt and ID sensors
clean?
Execute the forced toner-density
adjustment with the following SP:
SP3-126-002
Yes
Replace or clean the
transfer belt and/or the
ID sensors.
No
B146T906.WMF
The flowchart illustrates the procedure to adjust line positions.
NOTE: The allowance of color shift is 150 µ m. Keep the color shift in the range of 0 to
150
µ
m.