Sharp AR-F152, Service Manual

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100 110 120 130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shizuoka
100 110 120 130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shizuoka
110
10 20
10 20
Original (Scale)
Paper feed
direction
Reference Comparison point Copy
Lens unit number
(–) direction
Reference line (0)
(+) direction
6) Check that the actual copy magnification ratio is within the
specified range. (100
±
1.0%).
If it is not within the specified range, perform the following pro-
cedures.
7) Execute SIM 48-1 to select the sub scanning direction copy
magnification ratio adjustment mode.
To select the adjustment mode, use the copy mode select key.
(Photo exposure lamp ON)
8) Enter the new set value of sub scanning direction copy mag-
nification ratio with the copy quantity set key, and press the
COPY button.
Repeat procedures 1) — 8) until the sub scanning direction actual
copy magnification ratio in 100% copying is within the specified
range.
When the set value is changed by 1, the magnification ratio is
changed by 0.1%.
C. Lens unit attachment reference
Attach the lens unit so that the lens unit number on the lens adjustment
plate is aligned with the scribe line on the base plate.
Example: Lens unit number –2.8
Attach the lens unit at 2 scales in the paper exit direction
from the reference line.
Note: Never touch the other screws than the unit attachment
screw.
The lens unit is supplied only in a whole unit.
D. Image position adjustment
There are following five kinds of image position adjustments, which are
made by laser control except for the image scan start position adjust-
ment. For the adjustments, SIM 50 – 01 and SIM 50 – 10 are used.
No. Adjustment item Simulation
1 Print start position 50 – 01
2 Image lead edge void amount 50 – 01
3 Image scan start position 50 – 01
4 Image rear edge void amount 50 – 01
5 Center offset 50 – 10
To select the adjustment mode with SIM 50 – 01, use the copy density
select key.
The relationship between the adjustment modes and the lighting lamps
are as shown in the table below.
Adjustment mode Lighting lamp
Print start position Auto (AE) lamp
Image lead edge void amount Manual (TEXT) lamp
Image scan start position Photo lamp
Image rear edge void amount
Auto, Manual, Photo
lamps
To select the adjustment mode with SIM 50 – 10, use the copy mode
select key.
The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.
Machine with the multi manual paper feed unit
Adjustment mode Lighting lamp
Print center offset (cassette) Auto, Cassette
Print center offset (manual feed) Auto, Manual
Document center offset Auto, Manual
Machine with the single manual paper feed unit
Print center offset (cassette) Auto, Cassette
Print center offset (manual feed) Auto
Document center offset Auto, Manual
AR-F152
8 – 6