Adjustment Conditions - Ricoh B230 Service Manual

timing for that color.
Main scan line position for YCM
If the machine detects that the image is out of position in the main scan direction, it
changes the laser write start timing for each scan line.
Magnification adjustment for KYCM
If the machine detects that magnification adjustment is necessary, it changes the LD clock
frequency for the required color.
Skew for YCM
The adjustment of the skew for YCM is based on the line position for K.

Adjustment Conditions

Line position adjustment can be turned on or off with SP2-193-001. However, it is normally
recommended to turn on this function.
Line position adjustment timing depends on several SP mode settings. These are
described below.
Δt = Time since the previous line position adjustment
ΔT = Temperature change between the temperature of the previous line position
adjustment and the current temperature
Forced (SP2-111-001 to -003):
This activates the line position adjustment manually. There are three types of line position
adjustment mode. See the SP table for details.
Initial:
This starts automatically when the power is turned on, or when the machine recovers from
the energy saver mode.
Line position adjustment is automatically done twice if one of these conditions occurs:
Δt > Time threshold (SP2-193-012: [default: 600 minutes])
1.
ΔT > Temperature threshold (SP2-193-011: [default: 10°C])
2.
Line position adjustment is automatically done once if one of these conditions occurs:
Δt > Time threshold (SP2-193-009: [default: 300 minutes])
1.
ΔT > Temperature threshold (SP2-193-008: [default: 5°C])
2.
Interval: During job:
This interrupts printing and then starts automatically if one of these conditions occurs when
the machine checks at the sheet interval specified with SP3-512-001 (default: 30 page).
Line position adjustment is automatically done once if one of these conditions occurs:
Δt > Time threshold (SP2-193-009: [default: 300 minutes])
1.
ΔT > Temperature threshold (SP2-193-008: [default: 5°C])
2.
3. B/W counter (SP3-510-005) + Color counter (SP3-510-006) > Output threshold for all
SM 6-27 B230/B237/D042