Sharp AL-1611 Service Manual page 48

Main Sub
Contents
code code
50 16 SPF mode document off
center adjustment
<Only AL-1622>
18 Duplex memory reverse
position adjustment
<Not Used>
19 Duplex rear edge void
adjustment
<Not Used>
51 2 Resist amount adjustment
53 8 SPF scan position auto
adjustment
<Only AL-1622>
9 SPF white level value
display
<Only AL-1622>
63 1 Shading data check
7 White correction start/pixel
position auto adjustment
<Only AL-1622>
64 1 Self print mode
67 14 Printer Flash ROMData
Download
<Not Used>
Details of operation
After completion of warmup, shading is performed and the currently set off
center adjustment value for the document in SPF reading is displayed. For the
adjustment procedure, refer to the previous descriptions.
Key operation
Off center adjustment value: Copy quantity keys
After completion of warmup, shading is performed and currently set value is
displayed
Key operation
Memory reverse position adjustment value: Copy quantity keys
After completion of warmup, shading is performed and currently set value is
displayed.
Key operation
Adjustment mode select:
Exposure mode select key
Set value:
Copy quantity keys
After completion of warmup, shading is performed and the currently set resist
amount adjustment value is displayed.
Key operation
Resist amount adjustment: Auto: Main cassette
Copy quantity keys Manual: 2nd tray
Photo: Manual feed tray
Adjustment mode select:
Exposure mode select key
The mirror unit is shifted to 30mm in front of the SPF scan position. Then it is
moved by self-booting to detect the window cabinet edge.
In case of an error, "255" is displayed.
This simulation must be executed with the SPF cover open and without any-
thing on the document table.
The mirror unit is shifted to the SPF scan position, and the white adjustment
reference level which serves as the reference for white adjustment is dis-
played on the display section for 30 sec.
This simulation must be executed with the SPF cover closed.
The copy lamp is shifted to the shading position and it is lighted with the refer-
ence voltage at AD conversion fixed (Vref- = 0.5V, Vref+ = 4.5V). The level of
one pixel at the center at that time is displayed.
Display section: Shading data
The mirror unit is shifted to the SPF scan position to detect the white plate
edge position.
At that time, the edge position detection pixel is displayed on the display sec-
tion for 30 sec.
This simulation must be executed with the SPF cover open.
When the detected va1ue is in the range of 35~172, it is written into the
EEPROM.
Disregards the optical system and performs self printing in 1 by 2mode.
The machine enters the version up mode of the printer control PWB flash
ROM. For details, refer to the later.
AL-1611/AL-1622 SIMULATIONS
8 – 11
Display
Auto: SPF/R-SPF rear edge void
Manual: R-SPF off center
Photo: R-SPF lead edge void
Display
Display
Initial
Set range
value
61 1 ~ 99
58 1 ~ 99
1 ~ 99
37
52
70
1 ~ 99
50
1
50