Ricoh A151 Field Service Manual page 71

Mode No.
44 Horizontal
Magnification
Adjustment
(FT3213 copier
only)
45 Registration
Buckle – Paper
Feed
47 Focus
Adjustment
(FT3213 copier
only)
48 Light Intensity
Adjustment
50 Image Bias
Adjustment at
ID Level 7
51 Exposure Lamp
Data Display
52 Fusing
Temperature
Display
54 Vsg Display
55 Vsg & Vsp
Display
FSM
Function
Adjusts magnification perpendicular to the
direction of paper travel.
0.2% per step. (–1.6% to +8.4%)
Adjust the amount of paper buckle in registration
area.
0.4 mm per step. (–3.2 mm to +2.8 mm)
Adjusts the 4th/5th mirror position to correct
focus.
This mode must be done after horizontal and
vertical magnification adjustment (SP43 and 44).
Adjusts the exposure lamp voltage.
Before performing this mode, clean the optics
and perform SP95. After performing this mode,
perform SP56. The exposure lamp voltage is
adjusted on the production line. Refer to NOTE
3 for FT3013 copier.
Adjusts image bias voltage at ID level 7.
0: Vo
1: Vo+40V
2: Vo–40V
3: Vo–80V
Displays the exposure lamp data with a
reference number.
The exposure lamp, and optics cooling fans turn
on for 10 seconds when the Auto Image Density
key is pressed. Press the C/S key to turn this
mode off. Do not repeat more than 5 times to
avoid overheating the optics cavity. Refer to
NOTE 3 for FT3013 copier.
Displays the fusing temperature.
Refer to NOTE 3 for FT3013 copier.
Displays Vsg.
Adjust Vsg to 4.0 ± 0.2 V using VR102 on the
main board. The main motor and the ID sensor
LED turn on when the Auto Image Density key is
pressed. Refer to NOTE 4 for FT3013 copier.
Displays the Vsg and Vsp readings.
The Vsg reading is displayed while the "0" key is
held down. FT3013 copier displays the Vsp
reading while the "1" key is held down. To stop
this mode, press the C/S key.
The Vsp and Vsg voltage readings are updated
every 10 or 5 copies depending on SP35
selection. In free run mode, the Vsg and Vsp
readings are updated every copy cycle. Refer to
NOTE 4 for FT3013 copier.
4-15
Data
0–50
Default = 8
0–15
Default = 8
0–100
Default = 40
100–145
Default = 126
0: Normal (Vo)
1: Darker
2: Lighter
3: Lightest
100–150
A151/A152