Service manual

ENGINE SERVICE MODE
SM 5-9 G130/G131
Service Tables
[Dev. Mt Speed] Development Drive Motor Speed
([Color], Process Speed, Paper Type), Paper Type -> N: Normal, TH: Thick
1004
Adjusts the development drive motor speed for correcting color shifts at the leading
edge or trailing edge area.
Black Motor [K]:
Adjusts fusing roller speed for the trailing edge area.
Color Motor [YMC]:
Adjusts registration roller speed for the leading edge area.
NOTE:
• SP1-004-002 and 005 is for color mode. Fine adjustment for B&W mode can be
done with SP1-005-001 and 002.
• SP1-004-004 is for normal paper. Fine adjustment for thick paper can be done
with SP1-005-003.
1004 001 [K] L N *BCU [90.0 to 108.0 / 93.9 / 0.1 %/step]
1004 002 [K] M *BCU [90.0 to 108.0 / 93.6 / 0.1 %/step]
1004 003 [K] H *BCU [90.0 to 108.0 / 93.2 / 0.1 %/step]
1004 004 [YMC] L *BCU
1004 005 [YMC] M *BCU
1004 006 [YMC] H *BCU
[96.00 to 104.00 / 100.0
/ 0.05 %/step]
1004 007 [K] L TH *BCU [90.0 to 108.0 / 93.9 / 0.1 %/step]
1005
[Dev. Mt Speed2] Development Drive Motor Speed 2
([Color], Process Speed, Paper Type), Paper Type -> TH: Thick
[K] *BCU [-0.2 to 1.0 / 0.2 / 0.1 %/step] 1005 001
Adjusts the black development drive motor speed for the B&W 162mm/s process
speed. The value stored in this SP mode is different from SP1-004-002 (see the
note for SP 1-004).
Black development motor speed for B/W at 162 mm/s = Black development motor
speed for color mode at 162 mm/s (1-004-002) + 1-005-001.
At the 162mm/s process speed, the transfer unit position for B&W is different than
for color mode. The transfer unit position affects the paper transport quality, causing
the paper to flip up at the fusing section if the same speed as color mode is used for
B&W mode. To minimize the occurrence of paper flipping up, which causes
smeared images in the trailing area, this SP mode can change the motor speed in
B&W mode.
[YMC] *BCU [-1.00 to 1.00 / 0 / 0.05 %/step] FA 1005 002
Adjusts the color development drive motor speed for the B&W 162mm/s process
speed. The value stored in this SP mode is different from SP1-004-005 (see the
note for SP 1-004).
YMC development motor speed for B/W at 162 mm/s = YMC development motor
speed for color mode at 162 mm/s (1-004-005) + 1-005-002
At the 162mm/s process speed, the transfer unit position for B&W is different than
for color mode. The transfer unit position affects the paper transport speed slightly.
This SP mode can adjust the motor speed for B&W mode.
[YMC] TH *BCU [-0.30 to 0.30 / 0 / 0.05 %/step] 1005 003
Adjust the color development drive motor speed for thick paper in by-pass mode.
The value stored in this SP mode is different from SP1-004-004 (see the note for SP
1-004).
Normal and thick paper are different types of paper, and this sometime causes color
shift due to paper slippage. This SP mode can change the motor speed for thick
paper.