Sharp AL-2021 Service Manual page 83

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Contents
code code
46 20 SPF exposure correction
(excluding AL-2021)
29 Image contrast adjustment
(600dpi)
30 AE limit adjustment
[Function]
Used to adjust the exposure correction amount in the SPF mode. The adjustment is made by
adjusting Vref voltage variation for the OC mode.
When this simulation is executed, the current set value is displayed in 2 digits (Default: 50).
Change the set value and press [START] key to save the setting and make a copy.
When the set value is increased, copy becomes darker. When the set value is decreased, copy
becomes lighter. (Adjustment range: 1 – 99)
Display item
Mode
(AL-2031/2041)
SPF SPF
[Operation]
The operation is similar to simulation 46-01.
[Function]
Contrast is set for each mode.
When this simulation is executed, the current set value is displayed in 2 digits (Default: 50).
Change the set value and press [START] key to make a copy under the set value.
When the set value is increased, the contrast becomes higher. When the set value is
decreased, the contrast becomes lower.
In this case, only Exp.3 copy is made. When, however, the setting is made to make higher con-
trast, Exp.1 and Exp.5 copies also become in higher contrast. When made to a lower contrast,
Exp1. and Exp.5 copies become lower contrast, too.
Press [Exposure mode selector] key to switch the mode. The set value of the selected mode is
displayed on the LCD/display. (Adjustment value: 1 – 99)
Mode
AE mode (600dpi)
TEXT mode (600dpi)
PHOTO mode
TS mode (TEXT) (600dpi)
TS mode (AE) (600dpi)
Dither mode
[Operation]
The operation is similar to simulation 46-01.
[Function]
Used to set the limit value in AE and AE (toner save).
Change the setting and press [START] key to write the setting into the EEPROM. The machine
goes into the sub code entry standby mode.
By pressing [Exposure mode selector] key, setting is changed.
(Setting range: 0 – 255, Default: 196)
Mode
Limit value for AE (OC)
Limit value for AE (OC)
(toner save)
Limit value for AE (SPF)
Limit value for AE (SPF)
(toner save)
<Remark>
When simulation 26-06 (Destination setting) or simulation 46-19 Auto Exposure mode is
changed, the setting of this simulation is also changed to the default in connection.
[Operation]
The operation is similar to simulation 46-19.
AL-2041 SIMULATION, TROUBLE CODES 10 - 15
Details of function/operation
Display lamp
Default
(AL-2031/2041)
TEXT mode lamp 50
Display lamp
AE mode lamp
TEXT mode lamp
PHOTO mode lamp
TEXT mode lamp
PHOTO mode lamp
AE mode lamp
PHOTO mode lamp
AE mode lamp
TEXT mode lamp
PHOTO mode lamp
Display lamp
AE mode lamp
TEXT mode lamp
AE mode lamp
PHOTO mode lamp
TEXT mode lamp
PHOTO mode lamp
Remark
Default
50
50
50
50
50
50
Remark