Read Sharp AR-M550 (serv.man15) Service Manual online
AR-M550/M620 SIMULATION 8 - 78
Operation/Procedure
1) Enter the number corresponding to the memory to be checked with
10-key.
2) Press [START] key.
The memory read/write operation is started.
After starting the operation, "NOW CHECKING" is displayed during
checking. When read/write is normally completed, "OK" is displayed. If
an error occurs, "NG" is displayed.
checking. When read/write is normally completed, "OK" is displayed. If
an error occurs, "NG" is displayed.
Operation/Procedure
Used to check if the LSU delivers output of the sync signal (HSYNC/)
or not.
or not.
"NOW CHECKING" is displayed during checking. When the test is nor-
mally completed, "OK" is displayed. If an error occurs, "NG" is dis-
played.
mally completed, "OK" is displayed. If an error occurs, "NG" is dis-
played.
Operation/Procedure
1) Select the number corresponding to the adjustment mode with 10-
key.
2) Press [START] key.
3) Enter the adjustment value with 10-key.
4) Enter [START] key.
NOTE: Be sure to set the default value. If not, a trouble may occur in
the LSU.
60
60-1
Purpose
Operation test/Check
Function
(Purpose)
(Purpose)
Used to check the MFP control (DRAM) operations
(read/write).
(read/write).
Section
ICU
Item
Operation
1
MFP DRAM
ERDH image memory
2
ASIC DRAM
ASIC image memory
Check completion
Press [CUSTOM SETTINGS] key.
61
61-1
Purpose
Operation test/Check
Function
(Purpose)
(Purpose)
Used to check the operation of the scanner (write) unit
(LSU).
(LSU).
Section
Scanner (write) unit (LSU)
Item
Operation
SIMULATION 60-1
DRAM TEST. SELECT 1-2, AND PRESS START.
1. ICU DRAM
2. ASIC DRAM
1
SIMULATION 60-1
DRAM TEST. ···NOW CHECKING
1. ICU DRAM
Press [CUSTOM SETTINGS] key.
Press [START] key.
SIMULATION 60-1
DRAM TEST. ···OK (or NG)
1. ICU DRAM
Check completion
Press [CUSTOM SETTINGS] key.
61-2
Purpose
Adjustment
Function
(Purpose)
(Purpose)
Used to adjust the laser power (absolute value) in the
copy mode.
copy mode.
Section
Scanner (write) unit (LSU)
Item
Operation
Item
Set range
Default
1
AE
Auto exposure mode
20 - 119
44
2
CHARA.
Text mode
50
3
MIX
Text/Photo mode
50
4
PHOTO
Photo mode
50
Press [START] key.
Press [CUSTOM SETTINGS] key or [START] key.
SIMULATION 61-1
LSU TEST. PRESS START.
1. LSU
1
SIMULATION 61-1
LSU TEST. ···NOW CHECKING
1. LSU
Press [CUSTOM SETTINGS] key.
Press [START] key.
SIMULATION 61-1
LSU TEST. ···OK (or NG)
1. LSU
SIMULATION 61-2
LASER POWER SETTING(COPY). SELECT 1-4, AND PRESS START.
1. AE
44
2. CHARA.
50
3. MIX
50
4. PHOTO
50
1
SIMULATION 61-2
LASER POWER SETTING(COPY). INPUT VALUE 20-119, AND PRESS
START.
1. AE
44
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