Rev. 6/13/97 - Gestetner A193 Service Manual

SERVICE PROGRAM MODE
Mode No.
Class
Class 3
1 and 2
2-902*
1
⇒
2
2-903*
3
4
1
2
2-904*
3
4
The threshold value for binary picture mode is set with SP 4-418.
The SP2-904 settings determine how black the black pixels are.
2-905
2-907*
2-908
(A193)
FCI Enable Selects whether the FCI smoothing
(Smoothing function to remove jagged edges is
Letter Mode) enabled or disabled (this adjustment does
not affect fax mode)
Phase Selects the laser pulse positioning type
Independent that is used for independent black or gray
Dots pixels (white pixels to left and right).
(Factory use only) Item 3 is not used.
Phase left Selects the laser pulse positioning type
edge that is used for the the leftmost pixel of a
series of black or gray pixels.
(Factory use only) Item 3 is not used.
Phase right Selects the laser pulse positioning type
edge that is used for the rightmost pixel of a
series of black or gray pixels.
Item 3 is not used.
(Factory use only)
Phase Selects the laser pulse positioning type
continous that is used for pixels in the middle of a
dots series of black or gray pixels.
(Factory use only) Item 3 is not used.
ID Density of independent black or gray
Independent pixels in binary processing mode (white
dots pixels to left and right).
ID Density of the leftmost pixel of a series of
(Left Edge) black or gray pixels in binary processing
mode.
ID Density of the rightmost pixel of a series
(Right Edge) of black or gray pixels in binary
processing mode.
ID Density of pixels in the middle of a series
(Continuous) of black or gray pixels in binary
processing mode.
Gradation This is for the designer's test purposes.
Do not change the value.
Type
Laser Pulse Selects the laser pulse position type that
Positioning is used for test pattern printouts (printed
with SP5-902).
Item 3 is not used.
Forced Toner Forces the toner bottle to supply toner to
Supply the toner supply unit for 1.5 minutes.
Toner supply finishes automatically after
1.5 minutes. This process is not normally
needed in the field for this model, as the
machine can handle most cases where
toner runs short temporarily.
Function
4-10

Rev. 6/13/97

Settings
0: No
(Disabled)
1: Yes
(Enabled)
0: Center
1: Right
2: Left
3: Add
0: Center
1: Right
2: Left
3: add
0: Center
1: Right
2: Left
3: Add
0: Center
1: Right
2: Left
3: Add
0 ~ 255
1/step
128
0 ~ 255
1/step
128
0 ~ 255
1/step
255
0 ~ 255
1 / step
255
0:400
0: Center
1: Left
2: Right
3: Add
0: No
1: Yes
SM