Toshiba e-STUDIO556 Service Manual page 904

Sub
05/08 Mode Element
element
05 Adjustmen Process Developer
t mode
05 Adjustmen Process Developer
t mode
05 Adjustmen Process Developer
t mode
05 Adjustmen Process Charger
t mode
05 Adjustmen Process Transfer
t mode
05 Adjustmen Process Image
t mode quality
control
05 Adjustmen Process Image
t mode quality
control
05 Adjustmen Process Image
t mode quality
control
05 Adjustmen Process Image
t mode quality
control
05 Adjustmen Process Image
t mode quality
control
Item Subitem Code
2000
2001
2020
2040
2052
2120
2133
2134
2138
2160
Sub- Default Acceptable
Details
code value value
Automatic adjustment -
of auto-toner sensor
Correction of auto- 128 0-255
toner sensor
Developer bias output 113 0-255
adjustment
(Developer bias ON)
Main charger grid bias 102 0-255
output adjustment
Transfer transformer 138 0-255
DC output adjustment
(C)
Image quality control -
enforcement
Control status display 0 0-4
Sensor output value 0 0-1023
when LED light
source is OFF
Result display of 0 0-255
image quality sensor
light amount
adjustment
Drum surface 0 0-2
potential sensor
control status
1
RAM Contents
- The adjustment starts approx. 3 minutes after this mode
has been selected, and then the value is automatically
adjusted. The adjustment value is fixed by pressing the
[ENTER] button.This selection is disabled when the
developer unit is not installed.
M The adjustment value of the auto-toner sensor set in the
code 05-2000 is verified.This selection is disabled when
the developer unit is not installed.
M The developer bias is output. Use this code to verify the
output value of the high-voltage transformer.The value
is output while the developer unit is taken off from the
drum.
M The main charger grid bias is output. Use this code to
verify the output value of the high-voltage
transformer.Take off the developer unit to enable this
code.
M When the value increases, the transfer transformer
output increases. The output value of the transfer belt
power supply roller is unmeasurable since its voltage is
extremely high.Make sure to close the front cover when
this code is used. Never touch the high-voltage
section.This selection is disabled when the developer
unit is not installed.
M Image quality control is performed forcibly when the
density correction of the image is required.
M The control status of image quality control is displayed.
0: Normal
1: Error (control stopped)
2: Error (abnormal pattern density)
4: Sensor LED off-level abnormality or sensor LED light
amount abnormality
M Displays a sensor output value when the light source of
the LED is OFF.
M The result of the sensor LED light amount adjustment
(to use the reflection amount from the drum surface as
a reference) is displayed.
M 0: Normal,1: Error (control stopped),2: Error (sensor
abnormality)
Proce Servic
dure e UI
17 Yes
3 Yes
3
3
3
6 Yes
2 Yes
2
2
2