Service Manual

$'-8670(176
 /HDGHGJHDGMXVWPHQW
 6HWDVFDOHWRWKHFHQWHURIWKHSDSHUOHDGHGJHJXLGHDVVKRZQ
EHORZDQGFRYHULWZLWK%RU[SDSHU
 ([HFXWH6,0
 6HW WKH SULQWVWDUWSRVLWLRQ $( ODPS 21 $ WKH OHDGHGJH YRLG
DPRXQW7(;7ODPS21%DQGWKHVFDQVWDUWSRVLWLRQ3+272
ODPS21&WRDQGPDNHDFRS\RIDVFDOHDW
 0HDVXUHWKHLPDJHORVVDPRXQW5PPRIWKHVFDOHLPDJH
6HW& ;5PP([DPSOH6HWWKHYDOXHRI&WR
:KHQ WKH YDOXH RI & LV LQFUHDVHG E\  WKH LPDJH ORVV LV
GHFUHDVHGE\PP'HIDXOW
 0HDVXUH WKH GLVWDQFH + PP EHWZHHQWKH SDSHU OHDG HGJH DQG
WKHLPDJHSULQWVWDUWSRVLWLRQ
6HW$ ;+PP([DPSOH6HWWKHYDOXHRI$WR
:KHQWKHYDOXHRI$LVLQFUHDVHGE\WKHLPDJHOHDGHGJHLV
VKLIWHGWRWKHSDSHUOHDGHGJHE\PP'HIDXOW
 6HWWKHOHDGHGJHYRLGDPRXQWWR% PP
:KHQ WKH YDOXH RI % LV LQFUHDVHG E\  WKH YRLG DPRXQW LV
LQFUHDVHGE\DERXWPP)RURUOHVVKRZHYHUWKHYRLGDPRXQW
EHFRPHV]HUR'HIDXOW
 ,PDJHUHDUHGJHYRLGDPRXQWDGMXVWPHQW
 6HWDVFDOHWRWKHUHDUHGJHVHFWLRQRI$RU[SDSHUVL]H
DV VKRZQ LQWKHILJXUH EHORZDQGFRYHULWZLWK% RU [
SDSHU
 ([HFXWH 6,0   WR VHOHFW WKH LPDJH UHDU HGJH YRLG DPRXQW
DGMXVWPHQWPRGH
7KHVHWDGMXVWPHQWYDOXHLVGLVSOD\HGRQWKHFRS\TXDQWLW\GLVSOD\
 0DNHDFRS\DQGPHDVXUHWKHYRLGDPRXQWRILPDJHUHDUHGJH
 ,IWKHPHDVXUHPHQWYDOXHLVRXWRIWKHVSHFLILHGUDQJHFKDQJHWKH
VHWYDOXHDQGUHSHDWWKHDGMXVWPHQWSURFHGXUH
7KHGHIDXOWYDOXHLV
1RWH 7KHUHDUHGJHYRLGFDQQRWEHFKHFNHGZLWKWKHILUVWVKHHWDIWHU
HQWHULQJWKHVLPXODWLRQPRGHWKHILUVWVKHHWDIWHUWXUQLQJRIIRQ
WKHSRZHURUWKHILUVWVKHHWDIWHULQVHUWLQJWKHFDVVHWWH8VHWKH
VHFRQGRUODWHUVKHHWWRFKHFNWKHUHDUHGJHYRLG
 &HQWHURIIVHWDGMXVWPHQW
 6HWWKHVHOIPDGHWHVWFKDUWIRUWKHFHQWHUSRVLWLRQDGMXVWPHQWVR
WKDWLWVFHQWHUOLQHLVDOLJQHGZLWKWKHFHQWHUPDUNRIWKHGRFXPHQW
JXLGH
7HVWFKDUWIRUWKHFHQWHUSRVLWLRQDGMXVWPHQW
'UDZ D OLQH DW WKH FHQWHU RI $ RU  [  SDSHU LQ WKH SDSHU
WUDQVSRUWGLUHFWLRQ
 ([HFXWH 6,0    WR VHOHFW WKH SULQW FHQWHU RIIVHW FDVVHWWH
SDSHUIHHGDGMXVWPHQWPRGH
7KHVHWDGMXVWPHQWYDOXHLVGLVSOD\HGRQWKHFRS\TXDQWLW\GLVSOD\
5mm
10mm
(Example)
Distance between paper lead
edge and image: H = 5mm
Image loss:
R = 3mm
B4 or 8 1/2 × 14 paper
A4 size rear edge
Scale image
Paper rear edge
Void amount (Standard value: 2  3mm)
Document guide
Center
Copy paper
(A4 or 8 1/2 × 11)