SHARP ARRP1 ADJUSTMENTS

[6] ADJUSTMENTS

(1) RSPF sub scanning direction magnification

ratio adju st me n t

Note: When perfor ming this adjustm ent, check that th e CCD unit

is properly instal led.

: When perfor ming this ad justment, c heck that the O C mode

adjustment in c opying is completed.

1) Place a scale on the document table as shown below, and make a normal copy to make a test chart.

Note: Since the printed paper is used as the test chart, place the scale in parallel to both sides.

(2) SPF do cum e n t off ce n t er ad j ust m e n t

Note: When perfor ming this adjustment , check that the paper off-

center is properly adjusted.

1) Set the cen ter po siti on adj ustm e nt t est cha rt ( ma de by yo urs elf ) o n the RSPF.

Draw a line in the center of paper. (In the scanning direction)

2) Make a normal co py from the manual feed tray, and c ompare the copy and the test chart. If an adjustment is required, perform the following procedures.

3) Execute SIM 50-16.

4) After warming up, shading is performed and the current off-center adjustment value at each paper feed port is displayed on the display section in two digits.

5) Enter the set value and press t he START key. The entered correction value is started and a copy is made.

Mode Specification SIM Set value

SIM

50-16

1 ~ 99

2) Set the test chart to the SPF and make a normal copy.

3) Compare the copy and the test chart. If an adjustment is needed, perform the following procedures.

4) Execute SIM 8-5. The a ut o exposure lamp lights up.

5) After warming up, shading is performed. The current correction value of the front surf ac e sub scann in g dir ecti on ma gnif ic ati on rati o is displayed on the di splay section in two digit s.

6) Enter the set value, and pre ss t he START key. The entered correction value is stored and a copy is made.

7) Change the duplex document mode to the simplex document mode. The MANUAL la mp lights up, and the curren t correction value of the back surface sub scanning direction magnification ratio is displayed on the display section in two digits.

8) Enter the set value, and pre ss t he SATART key. The entered correction value is stored and a copy is made.

Mode Spec SIM Set value Set range

SIM

48-5

1 ~ 99

(3) SPF image lead edge position adjustment

1) Set a scale on the OC table as shown below.

Note: Since the printed paper is used as the test chart, place the scale in parallel to both sides.

2) Make a copy, and use the copied paper as the document and make a copy from SPF again.

3) Check th e copied paper. If an adj ustment is requi red, perform the following procedures.

4) Execute SIM 50-1.

5) Set the SPF lead edge position set value (Exposure display <MANUAL> ON) s o that the image sim ilar to the adjust ed image at the OC image lead edge position described previously is print ed.

Adjustment

mode

SIM LED Set value Specification

SIM

50-1

Set

range

1 ~ 99

(4) OC (SPF) open/close detection position

adjustment

1) Set a paper of A4 (8.5 x 11") on the OC table. Check that the document size display on the operation panel is the same as the set paper size .

2) Close the OC (SPF) so that your hand can be inserted, and remove the paper on the OC table. The document size disp lay does not change from 1).

3) Gradually open the OC (SPF) until the display on the operation panel is changed. Measure the distance (A) in the figure below when the disp lay on the op eration p anel is chan ged (all doc ument size lamps are turned OFF).

Distance (A) = Table glass top - OC (SPF) knob rib

Open.

[7] DISASSEMBLY AND ASSEMBLY

1. External fitting section

(Note) Turn the paw in th e arrow direction.

1) Check the position where the display checked in 1) is changed.

<Specifications> OC (SPF) open/close position A : 207 ~ 302mm

4) If the OC (SPF) open/close positi on A is not 2 07 ~ 302mm, a djust the open/close sensor installing plate position shown in the figure below.

Open/close sensor installing plate

(A)

(B)

2. Paper feed unit section

1) Paper feed u n it

Factory setting: The second top mark