Gestetner G060 Service Manual page 555

Mode No.
2
(Class 1, 2, and 3)
001 21 AC U Limit[FC]
22 AC L Limit[FC]
[LD Control] LD Power Control
103
([Color Mode, Color], Process Speed, K or C olor mode) P: Power, M: Magnification
Adjusts the laser power by changing the current applied to LD.
Laser power is automatically adjusted during process control; therefore, adjusting these
data has no effect while Process Control (SP3-125-002 Default : ON) is activated.
After selecting "0: Fixed) in SP3-125-002, the values in these SP modes are used for
printing.
The following is the procedure to check whether or not LD power control functions
properly.
1. Set SP3-125-002 to "0: Fixed".
2. Set the LD power to "400" and make a test print.
3. Set the LD power to "900" and make a test print.
4. Check the image density of the test prints made with LD power "400" and "900".
5. If there is no difference between the test prints, check the LD unit.
NOTE: Do not set the LD power to "300" or lower. This may cause SC220.
1 P:[K] 62.5 C
2 P:[K] 125 C
4 P:[Y] 62.5 C
5 P:[Y] 125 C
7 P:[M] 62.5 C
8 P:[M] 125 C
10 P:[C] 62.5 C
11 P:[C] 125 C
13 P:[K] 62.5 K
14 P:[K] 125 K
15 P:[K] 185 K
26 P:[0 1] 125 K
27 P:[0 1] 185 K
Main Scan Magnification ([Color], Laser Exposure Frequency)
55 M:[K] 64.3MHz
56 M:[Y] 64.3MHz
57 M:[M] 64.3MHz
58 M:[C] 64.3MHz
59 M:[K] 47.6MHz
SM
Function / [ Setting ]
* Sets the upper limit of the AC component
BCU adjustable range for color.
During machine initialization and process control
self-check, the AC component of the charge roller
bias is automatically adjusted within the range
specified in the SP2-001-021 and 022.
[0 to 255 / 90 / 1/step ] DFU
Sets the lower limit of the AC component
adjustable range for color.
[0 to 255 / 84 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
*
[ 0 to 1023 / 640 / 1/step ] DFU
BCU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 640 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 640 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 640 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 601 / 1/step ] DFU
[ 0 to 1023 / 672 / 1/step ] DFU
[ 0 to 1023 / 601 / 1/step ] DFU
* Displays the result of the latest line position
BCU adjustment. Changing this affects the main scan
magnification; however, this will be automatically
corrected at the next line position adjustment. If a
fine adjustment is required, it can be done with
SP5-993-013 to 015 (this affects the way that the
adjustment is done, and will be effective from the
next line position adjustment).
[ 0 to 280 / 140 / 1 dot/step ] 1 dot = 20µ DFU
NOTE: If the line position adjustment does not
work properly, the line position can be
adjusted manually with this SP mode as a
temporary measure. In this case, the line
position adjustment needs to be disabled
with SP5-993-001.
5-17
COPY SP MODE
G570