Sharp AR-BC320, Service Manual, Page: 219 / 344

AR-BC320 SIMULATION 9 - 65
• When the set value is 50 at transfer ON timing, the transfer
operation is turned on immediately when the paper lead edge
passes beneath the drum.
• When the set value is 50 at transfer OFF timing, the transfer
operation is turned off immediately when the paper rear edge
passes beneath the drum.
• When the transfer ON/OFF timing value is decreased, the
transfer ON/OFF timing is advanced for the paper.
• When the transfer ON/OFF timing value is increased, the
transfer ON/OFF timing is delayed for the paper.
• Change of ±1 corresponds to about 10ms. The set range is
–490 to +490ms
(Items to be set)
• Used to set the resist roller clutch (RRC) ON timing. When the
adjustment value is increased, the timing is delayed and the
pressure of paper onto the resist roller is increased.
• When the set value is changed by 1, the timing is changed by
about 1.0ms.
∗
Paper size judgment method
In the cassette tray paper feed, the paper size smaller than
170mm is regarded as the small size.
In the desk tray or ADU paper feed, the paper size of 216mm or
smaller is regarded as the small size.
In the manual paper feed tray paper feed, the paper area of
49128mm² (184 x 267) or less is regarded as the small size.
51
51 -01
Purpose Adjustment
Function
(Purpose) Used to adjust the transfer voltage ON timing.
Section Process (Photoconductor, developing, Transfer
transfer, cleaning)
Item Operation
Operation/
Procedure 1. Select the adjustment mode with the scroll key.
2. Enter the set value with the 10-key and press
the [OK] key to set the entered value.
Item Description on item
Set
range
Default
A NORMAL
ON
TIMING Used to set the transfer ON
timing for the paper lead
edge except for OHP. 1 – 99 40
B NORMAL
OFF
TIMING Used to set the transfer
OFF timing for the paper
rear edge except for OHP. 1 – 99 60
C OHP ON
TIMING Used to set the transfer ON
timing for the lead edge of
OHP. 1 – 99 40
D OHP OFF
TIMING Used to set the transfer
OFF timing for the rear
edge of OHP. 1 – 99 60
51 -02
Purpose Adjustment
Function
(Purpose) Used to adjust the contact pressure of paper on the
resist roller of each section (each paper feed and
duplex feed of the copier). (This adjustment is
required when the print image position variations
are considerably great or when paper jams occur
frequently.)
Section Paper transport (Paper exit, switchback, transport)
Item Operation
Operation/
Procedure 1. Select the adjustment mode with the scroll key.
2. Enter the set value with the 10-key and press
the [OK] key to set the entered value.
Display Content
Min.
value
Max.
value
Default
A TRAY(S) Cassette tray resist
adjustment value 1 99 15
B LCC(LC8) LCC tray (LC8)/
deflection adjustment
value 1 99 10
C ADU ADU resist
adjustment value 1 99 30
D MANUAL
PLAIN
PAPER(S) Manual feed tray
resist adjustment
value (Normal paper,
small size) 1 99 50
E MANUAL
HEAVY
PAPER1 Manual feed tray
resist adjustment
value (Heavy paper
1) 1 99 50
F MANUAL
HEAVY
PAPER2 Manual feed tray
resist adjustment
value (Heavy paper
2) 1 99 50
G MANUAL
OHP1 Manual feed tray
resist adjustment
value (OHP 1) 1 99 50
H MANUAL
OHP2 Manual feed tray
resist adjustment
value (OHP 2) 1 99 50
I MANUAL
ENV Manual feed tray
resist adjustment
value (Envelope) 1 99 50
J DESK(S) Desk tray resist
adjustment value
(Small size) 1 99 30
K DESK(L) Desk tray resist
adjustment value
(Large size) 1 99 30
L MANUAL
PLAIN
PAPER(L) Manual feed tray
resist adjustment
value (Normal paper,
large size) 1 99 75
M TRAY(L) Cassette tray
deflection adjustment
value (Large size) 1 99 25
N ADU(L) ADU deflection
adjustment value
(Large size) 1 99 30
O LCC(LC5) LCC tray (LC5)/
deflection adjustment
value 1 99 25