Copy Image Position, Image Loss Adjustment - Sharp MX-3500N Service Manual

2) Set A4 (11 x 8.5) paper to all the trays, and select the set item
J with the scroll key. Enter the value corresponding to the
adjustment target paper feed tray.
3) Press [EXECUTE] key.
The adjustment pattern is printed.
4) Check the adjustment pattern to confirm that the items below
are in the range of the standard values.
Content
X Lead edge void area
Y Rear edge void area
Z1/Z2 FRONT/REAR void area
X
3.0±1.0mm
(Note) Feed paper from all the paper feed trays to confirm.
If the above condition is not satisfied, or if it is set to a desired
condition, execute the simulation 50-1.
5) Enter the simulation 50-1 mode.
SIMULATION NO.50-01
TEST
LEAD EDGE ADJUSTMENT VALUE
A xx RRCA
A: xx
B xx RRCB-CS12
C xx RRCB-CS34
0 99
D xx RRCB-LCC
10-key
SIMULATION NO.50 01
TEST
LEAD EDGE ADJUSTMENT VALUE
A xx RRCA
A: xx
B xx RRCB-CS12
C xx RRCB-CS34
0 99
D xx RRCB-LCC
Standard adjustment value
3.0 ± 1.0mm
2.0 ± 1.0mm
2.0 ± 2.0mm
Z1
2.0±2.0mm
Y
2.0±1.0mm
Z2
2.0±2.0mm
CLOSE
OK
OK
CLOSE
OK
MX3500N ADJUSTMENTS 6 – 29
6) Select the adjustment item with the scroll key, and enter the
adjustment value and press [OK] key.
Display/
Item
DENA Void are
amount
adjustment
DENB
FRONT/
REAR
When the adjustment value is increased, the void area is
increased. When the adjustment value is decreased, the void
area is decreased. When the adjustment value is changed by
1, the void area is changed by 0.1mm.
(Note)
The adjustment value and the actual void area are related as
follows:
Adjustment value/10 = Actual void area
After execution of the above, perform procedures 1) – 4) to
check that the void area is within the specified range.
Though the lead edge void area adjustment value is proper, if
the lead edge void area is not within the specified range,
change the adjustment value of RRCB-XXX of SIM 50-1.
Display
item
RRCB- Image lead
CS12 edge
position
RRCB-
adjustment
CS34
value
RRCB-
LCC
RRCB-
MFT
0
RRCB-
ADU
Repeat the above procedures until a satisfactory result is
obtained.
ADJ 18
Copy image position, image
loss adjustment
18-A Copy image position, image loss
adjustment (Document table mode)
This adjustment is required in the following cases:
* When the scanner (reading) section is disassembled.
0
* When the scanner (reading) unit is replaced.
* When the LSU is replaced or removed.
* When the resist roller section is disassembled.
* When a U2 trouble occurs.
* When the PCU PWB is replaced.
* When the EEPROM on the PCU PWB is replaced.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
NOTE: Before executing this adjustment, be sure to confirm that
the ADJ 17 Print area (Void area) adjustment (Print engine
section) has been completed normally.
Adjustment Default
Content
range value
Lead edge 1 – 99
void area
adjustment
Rear edge 1 – 99
void area
adjustment
FRONT/ 1 – 99
REAR void
area
adjustment
Adjustment
Content
range
Resist Standard 1 – 99
motor ON cassette
timing
Desk 1 – 99
adjustment
LCC 1 – 99
Manual 1 – 99
feed
ADU 1 – 99
Standard
adjustment
value
3.0 ±
30
1.0mm
2.0 ±
20
1.0mm
2.0 ±
20
2.0mm
Default
value
50
50
50
50
50