Sharp AR-6020V Service Manual page 32

ADJ 2
Mechanism section
NOTE: If a jam error or paper empty occurs during copying in the
adjustment by the simulation, the image data is not saved,
and therefore recopying is required.
2-A Image position adjustment
2-A (1)Lead edge image position adjustment
NOTE: This adjustment executes the copy image position and the
lead edge void amount adjustment.
By adjusting the image reading start position and the print
start position (the registration roller ON timing) under the
100% printing.
<How to operate>
When this adjustment is executed, the current setting value is dis-
played in 2-digits. (The center value is 50.)
The switching of each setting and display can be made with press-
ing the [AUTO/TEXT/PHOTO] key.
When the adjustment value is entered by the [Numeric] keys and
press the [START] key, the setting value is saved and the machine
makes one copy. (The setting value range is from 1 to 99.)
When the [INTERRUPT] key is pressed, the process is interrupted
and the machine goes into the sub code input standby mode. When
the [CA] key is pressed, the simulation is terminated.
When this adjustment is executed with the original cassette tray,
the adjustment values of all cassette trays becomes the same
value.
(When the adjustment value is increased by 1, the position is
shifted by 0.1mm.)
LED
AUTO, 1st tray indicator
AUTO, 2nd tray indicator
AUTO, Bypass tray indicator
TEXT indicator
PHOTO indicator
AUTO, TEXT, PHOTO indicator
* Supported for the installed models only. Skipped for the models
without installation.
When printing is made with bypass tray, use A3 paper with the AB
destination or the W-letter with the Inch destination.
When the adjustment value of the print start position is increased
by 1, the timing of the registration roller is delayed and the printing
image is cut in 1mm. When the adjustment value of the image
reading start position is increased by 1, the image reading start
position is shifted to home position (towards you) in 1mm.
1) Enter SIM50-01 mode.
2) Set the following setting value to [1] by [Numeric] keys and
press the [START] key. Then, print one copy.
Item A: The print start position (The [AUTO] indicator lights. )
Item B: The image lead edge void amount (The [TEXT] indica-
tor lights.)
Item C: The image reading start position (The [PHOTO] indica-
tor lights.)
3) Measure the image loss amount (R mm) of the scale. Then,
set the value (C) by calculating with the following formula.
Adjustment mode
Print start position (1st tray paper feed)
Print start position (2nd tray paper feed)
Print start position (Bypass tray paper feed) *
Image lead edge void amount
Image reading start position
Image rear edge void amount
A4(8.5" x 11")
Paper rear edge
AR-6020V ADJUSTMENTS 5 – 3
C = 10 x R (mm)
When the C value is increased by 10, the image loss amount is
decreased in 1mm.
4) Measure the distance between the lead edge of the paper and
the image printing start position (H mm). Then, set the value
(A) by calculating with the following formula.
A = 10 x H (mm)
When the A value is increased by 10, the image lead edge
moves to the paper lead edge in 1mm.
5) Set the lead edge adjustment value (B) to 50 (2.5mm).
When the B value is increased by 10, the void area is
expanded in 1mm.
When the B value is set to less than 25, the void amount
becomes 0.
2-A (2)RSPF copy lead edge position
adjustment
NOTE: This adjustment executes the RSPF copy lead edge posi-
tion adjustment.
<How to operate>
When the adjustment value of the paper reading position is
increased by 1, the timing of the reading start becomes faster and
the machine reads the paper faster in 0.1mm amount.
When the adjustment value of the paper reading position is
increased by 1, the image reading start position is shifted to the
reverse direction. The adjustment range is from 1 to 99.
LED
AUTO indicator 1st print surface paper reading position adjustment
TEXT indicator 2nd print surface paper reading position adjustment *
PHOTO indicator Rear void adjustment (RSPF)
* Supported for the installed models only. Skipped for the models
without installation.
1) Set a scale on the OC table as shown below.
A4(8.5" x 11")
Paper rear edge
A4(8.5" x 11")
Paper rear edge
Adjustment mode