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AR-SP8/RP8  ADJUSTMENTS  5 - 1

Place a black chart so that it covers the SPF scan glass and the OC
glass together, and close the OC cover.

When test command 53-08 is executed, the current adjustment value
is displayed as the initial display.

* Default is 1. Adjustment range is 1 – 99. Adjustment unit 1 = about

0.127mm

* If the values are kept as the default values, SPF scan is not per-

formed properly. The front area of the proper scan position may be
scanned.

In case of AUTO, press [START] key, and the mirror unit scans from
the home position to the SPF scan position with the adjustment value
displayed. The SPF glass cover edge position is calculated from the
difference between the SPFG glass cover edge and the OC side
document glass CCD output level. If the adjustment is normal, the
adjusted value is displayed. If abnormal, the error LED lights up with
the current set value displayed. 

During the error LED is lighted, when [START] key is pressed again,
execution is performed again.

The operation is similar to test command 46-01.  (In MANUAL)

OK/ERR display in AUTO

* Use a black chart (UKOG-0011QSZZ) or prepare a chart as shown

below.
Chart size: 300 x 100, prepared with cutting sheet No. 791 (Black) or
an equivalent one.

Note: Before performing this adjustment, be sure to check that the OC

mode adjustment in copying has been completed.

1) Put a scale on the original table as shown below, and make a

normal copy (100%) on the front and the back surfaces to make a
test chart. 

Note:

Since the printed copy is used as a test chart, put the scale in
paralled with the edge lines.

2) Set the test chart  on the RSPF and make a duplex copy (D-D or D-

S) in the normal ratio (100%).

3) Compare the scale image and the actual image.

If necessary, perform the following adjustment procedures.

4) Execute TC 48-05.

5) The current front surface sub scanning direction magnification ratio

correction value is displayed in two digits on the display section.
To select SIDE1 and SIDE2, use [

←

/

→

] keys.

6) Enter the set value and press the start key.

When adjusting the RSPF, use [2-SIDED COPY] key to select
single/duplex after entering the one page print mode, performing 2-
page single copy.

* When there is no document in SPF, copy is inhibited.

Mode

Display 

item

Default

LED

SPF scan position auto 
adjustment 

AUTO

1

COPY mode lamp

SPF scan position manual 
adjustment 

MANU

1

PRINT mode lamp

Reason: To prevent erroneous detection by disturbing light of a

fluorescent lamp, etc. 

<When OK>

<When ERR>

53-08 SPF AUTO

AUTO  100% **    OK

53-08 SPF AUTO

AUTO  100% **    ERR

6cm or more is required.

The size of the black chart (UKOG-0011QSZZ) is 297 x 420. Divide it
into four for use. 

Mode

Display 

item

Default

LED

Sub scan magnification ratio 
adjustment on the surface of SPF/
RSPF document 

SIDE1

50

COPY 
mode lamp

Sub scan magnification ratio 
adjustment on the surface of 
RSPF document

SIDE2

50

PRINT 
mode lamp

Adjustment 

mode

Spec value

TC

Set value

Setting 

range

Sub scanning 
direction 
magnification 
ratio (SPF/RSPF 
mode)

At normal: 
±1.0%

48-5

Add 1: 
0.1% increase
Reduce 1: 0.1% 
decrease

1 – 99

AR-SP8/RP8  ADJUSTMENTS  5 - 2

This step adjusts the front surface printing (odd-number pages of a
document set) in the S-D mode copying and the leading edge position
of an image on even-number pages in the D-S mode.

That is, it covers the adjustment of the second surface printing mode
(image loss at the front edge of an image) in which image data is once
stored in memory.

The image data is read, starting from its front end in the document
delivery direction (Reference direction of document setting in the OC
mode)and stored in memory.

This stored image data is printed starting at the printing start position,
in the order of last-stored data to the first-stored data. 

In other words, the front edge image loss of the image can be adjusted
by changing the document read end position.

1) Preparing test chart (Draw a scale at the rear end of one side of a

sheet of A4 white paper or letter paper)

2) Set the test chart so that the scale is positioned as shown below, in

the S-D mode and the D-S mode.

3) Execute test command 50-18.

Select the SPF memory reverse output position, and press
[START] key to make a copy. 

Adjust the setting so that the front edge image loss is less than 4.0
mm in the R-SPF mode.
An increase of 1 in setting represents an increase of 0.1 mm in
image loss.

This is the adjustment of the first surface printing mode (rear end void)
in duplex copying.

In a duplex copying operation, the paper is delivered starting from the
rear end of the first printing surface. It is therefore necessary to make a
void area at the rear end on the first printing surface to prevent paper
jam at the fusing part.

There are two adjustment modes:

1) Image cut rear end void quantity (R-SPF) 50-19 (SCAN mode

lamp)
The size (length) of a document read from the R-SPF is detected,
the image at the trailing edge of the first printing surface is cut to
make a void area. (The adjustment of void quantity at the time
when the cassette paper size is not recognized.)

2) Paper trailing edge void quantity 50-19 (PRINT mode lamp)

This adjustment is made when the cassette paper size is
recognized. The trailing edge void quantity can be adjusted by
changing the trailing edge image laser OFF timing.

The paper void quantity should be first adjusted before the image cut
trailing edge void quantity (R-SPF) is adjusted.

The adjustment modes can be selected by pressing [

←

/

→

] key.

(Adjustment range; 1 – 99)

Enter the adjustment value and press [START] key to save the set
value and make a copy. (The paper information is cleared for every
copy.)

When the set value is increased by 1, the void amount is increased by
about 0.1mm.

* The initial value of duplex setting is 2to2.

1) Preparing test chart (Draw a scale at the rear end of one side of a

sheet of A/4 white paper or letter paper)

2) Set the test chart on the document glass as shown below.

Mode

Display 

item

Default

LED

OC memory reverse 
output position 

OC

50

COPY mode lamp

SPF memory reverse 
output position

SPF

50

PRINT mode lamp

Scale (S-D mode)

Scale (D-S mode)

5 10

The front edge of the
scale on test chart

 Front edge of paper

Void area

less than 4 mm

Mode

Display 

item

Default

LED

Paper rear edge void 
amount

DEN-B

50

PRINT mode lamp

Print start position (Duplex 
back surface)

RRC-D

50

SCAN mode lamp

2nd printing surface where scale is printed (lower side)

Document guide

The trailing edge has a scale

Table glass

AR-SP8/RP8  ADJUSTMENTS  5 - 3

3) Execute test command 50-19 to turn on the PRINT mode lamp and

make the printing mode in OC-D mode.
Make a copy of the test chart to check the void area of the scale on
the image.

Adjust the setting so that the void area is 4 - 5 mm. An increase in 1 of
setting represents 0.1 mm in void area.

1) Set the test chart so that the scale is positioned as shown below.

2) Execute test command 50-19 to turn on the SCAN mode lamp(on

the operation panel) and make the printing mode in the D-D mode.

3) Remove and reinsert the cassette.

Note: Make sure to carry out this step before making a copy during

this adjustment.

4) Make a copy and check the void area of the scale on the image.

Adjust the setting so that the void area is 2 - 4 mm. An increase of
1 in setting represents an increase of 0.1 mm in void area.
l Void position to be checked

The trailing edge void on the first printing surface
 is shown above.

Paper 

Void position to be check

Scale (D-D mode)

AR-SP8/RP8  TEST COMMAND  6 - 1

To enter the serviceman test command mode, press the keys as
follows:

[#] key 

→

 [*] key 

→

 [C] key 

→

 [*] key

To cancel the test command mode, press the [CA] key.

[10KEY]:

Entry of MAIN CODE/SUB CODE
Selection of an item
Setup of an adjustment value in case of test commands for adjustment

[

←

/

→

]:

Selection of MAIN CODE/SUB CODE 
Selection of an item

[OK/START]:

Settlement
<In case of test commands for print>
[OK]:

Settlement (Without print)

[START]: Settlement/Print

[C]:

(Interrupting operation check) Returns to the upper hierarchy.
In case of test command of operation check, terminates the operations.

[CA]:

Exits from the test command mode.
For a test command of adjustment, the display returns to the initial display (00-00).

Main 
code

Sub 

code

Contents

2

01

Single Paper Feeder (SPF) aging (SPF AGING)

02

SPF sensor status display (SPF SENSOR)

03

SPF motor operation check (SPF MOTOR CHK)

06

RSPF resist clutch operation check (RSPF RES.CHK)

08

SPF paper feed solenoid operation check (SPF SPUS 
CHK)

09

RSPF reverse solenoid operation check (RSPF SPFS 
CHK)

10

RSPF paper exit gate solenoid operation check 
(RSPF SGS CHK)

9

01

Duplex motor normal rotation check (DPLX ROT.)

02

Duplex motor reverse rotation check (DPLX 
ROT.REV.)

04

Duplex motor rotating speed adjustment (DPLX 
ROT.SPEED)

22

08

SPF counter display (SPF CNT)

16

Duplex counter display (DPLX CNT)

22

SPF JAM counter display (S JAM CNT)

Main 
code

Sub 

code

Contents

24

04

SPF counter clear (SPF CLR.)

14

SPF JAM total counter clear (S JAM TTL CLR.)

26

02

(R)SPF setting (SPF/RSPF)

04

Main unit duplex setting (DPLX)

41

06

OC cover float detection level (OC FLOAT LEVEL)

43

05

Fusing temperature setting in duplex copy (FU TEMP 
DPLX) (Enabled when Duplex setting is ON)

46

20

SPF exposure correction (EXP.LEVEL SPF)

48

05

SPF/RSPF mode sub scan direction magnification 
ratio in copying (SPF/RSPF MAG.)

50

18

Memory reverse position adjustment in duplex copy 
(DPLX REVERSE)

19

Duplex copy rear edge void adjustment (DPLX END 
EDGE)

53

08

SPF scan position automatic adjustment (SPF AUTO)

Main 
code

Sub 

code

Contents

Details of function/operation

2

01

Single Paper Feeder (SPF) 
aging (SPF AGING)

[Function]
When [OK/START] key is pressed, the set magnification ratio is acquired and single-face document
transport is performed in the case of SPF or duplex document transport in the case of R-SPF.

However, the operating conditions don't matter and the operation is not stopped even in case of a
jam.  Also the magnification ratio is displayed on the LCD.

[Operation]
The operation is similar to test command 1-01.