Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
This document has been published to be used
SHARP CORPORATION
for after sales servic e only.
The contents are subject to change without notice.
[1] PRODUCT OUTLINE
The 250-sheet paper feed unit and the 500-sheet paper feed unit are
the optional paper feed cassettes for the digital copier, and they are the
same structure as the 250-sheet cassette of the copier.
The combination of the copier and the paper feed cassette is as shown
below:
Lift the document cover from the copier and tilt it to the rear side to
remove it.
(AR-D25)
2) Remove the rear cabinet.
Remove the screw and remove the cover. Then, remove the five screws
and remove the rear cabinet.
3) Remove the copier rear cover.
Remove the two screws and remove the rear cover.
AR-D25/D24 UNPACKING AND INSTALLATION
– 2 –
4) Make a hole for connector.
• Copier (1-tray model)
Cut out the portion shown in the illustration with nippers or the like.
• Copier (2-tray model)
Press the portion shown in the illustration with a screwdriver or the
like to remove it.
5) Remove the second cassette rear cover.
6) Install the copier onto the 250-sheet paper feed unit.
Put the copier on the 250-sheet paper feed unit, and fix with the fixing
plates and the screws.
• Copier (1-tray model) + 250-sheet paper feed unit
Remove the rear cover which is attached to the 250-sheet paper feed
unit.
Remove the rear cover (upper stage) from the 500-sheet paper feed
unit.
• Copier (2-tray model) + 250-sheet paper feed unit
AR-D25/D24 UNPACKING AND INSTALLATION
– 3 –
• Copier (1-tray model) + 500-sheet paper feed unit
7) Remove the connection gear lock.
Remove the connection gear lock (with the red tug) after setting.
8) Connect the connector
Connect the optional relay harness contained in the 1-tray model (2-tray
model) paper feed unit to the PWB of the copier.
• Optional relay harness
• Copier (2-tray model) + 500-sheet paper feed unit
• Copier (1-tray model) + 250-sheet paper feed unit
AR-D25/D24 UNPACKING AND INSTALLATION
– 4 –
• Copier (2-tray model) + 250-sheet paper feed unit
• Copier (2-tray model) + 500-sheet paper feed unit
• Copier (1-tray model) + 500-sheet paper feed unit
9) Remove the cassette packing fixtures.
Pull the cassette until it stops.
Turn and remove the packing fixture which is fixing the paper pressure
plate inside the cassette in the direction of arrow.
10) Set the cassette side plate.
Hold the knob of the cassette side plate, slide it and set to the position
of the paper size to be used.
AR-D25/D24 UNPACKING AND INSTALLATION
– 5 –
11) Install the cassette rear edge plate.
g
Install the cassette rear plate to the position of the paper size to be
used.
Note: To make the paper center shift adjustment and the lead edge
adjustment, insert the power plug of the copier into the
power outlet, turn on the power switch, and perform the following procedure.
13) Perform the center shift adjustment.
Set a document on the document glass and make a copy.
*If the image center is shifted, perform the following procedure.
1. Execute SIM 50-10 with the key operations on the copier.
12) Set the paper.
When setting the paper, do not exceed the height of the indication label.
cannot stack
more than this line.
[Program key]
#
C5010
2. Turn on the Auto lamp and the lamp of a corresponding tray by
Light and Dark key, Enter the set value with the keys on the operation panel to perform the center shift adjustment, make a copy
again, and check that the center is not shifted.
Rear side
Front side
Paper output direction
Printin
side
• When the s et value is inc reased, the image is shifted to the rear
side.
Center line of image
1
Output direction
Printing side
Center line
of paper
Leading edge
• When the set value is decreased, the image is shifted to the front
side.
Center line of image
1
Output direction
Center line
of paper
Printing side
Leading edge
After completion of the adjustment, press the key to cancel the
CA
mode.
14) Perform the lead edge adjustment.
Set a document on the document glass, and make a copy.
1. Execute SIM 50-1 with the key operations on the copier.
[Program key]
#1
C50
2. Turn on the Auto lamp and the lamp of a corresponding tray by
Light and Dark key, Enter the set value with the keys on the operation panel and make a copy to check that the lead edge is within the
specified range.
• When the set value is increased, the copy image moves forward.
• When the set value is decreased, the copy image moves backward.
After completion of the adjustment, press the key to cancel the
mode.
0
CA
AR-D25/D24 UNPACKING AND INSTALLATION
– 6 –
15) Changing a tray’s paper size setting
PAPER
SIZE
11X17
8½
X
14
8½
X
11
8½
X
11
8½
X
5½
EXTRA
TRAY
SELECT
ORIGINAL SIZE
ENTER
PAPER
SIZE
11X17
8½
X
14
8½
X
11
8½
X
11
8½
X
5½
EXTRA
START
Follow these steps to change a tray’s paper size setting.
Note:
• The paper size setting cannot be changed when the machine has
stopped temporarily due to running out of paper or a misfeed, or
during interrupt copying.
• During printing (even in copy mode), the paper size setting cannot
be changed.
• 5-1/2” x 8-1/2” size paper can only be selected in upper paper tray.
• Do not load paper that is a different size than the paper size setting. Copying will not be possible.
1. H old down the [PAPER SIZE ENTER] key for more than 5 seconds
to set the selected paper size.
The currently selected paper feed location indicator will blink and
the corresponding paper size (which is currently set) indicator will
light steadily. All other indicators will go out.
4. Squeeze the lock lever of the front guide and slide the front guide to
match the width of the paper, and move the left guide to the appropriate slot as marked on the tray.
Left guide
Front guide
• The front guide is a slide-type guide. Grasp the locking knob on
the guide and slide the guide to the indicator line of the paper to
be loaded.
• The left guide is an insert-type guide. Remove it and then insert it
at the indicator line of the paper to be loaded.
• Whe n using 11” x 17” sized paper store the left guide in the slot
at the left front of the paper tray.
2. Use the [TRAY SELECT] key () to select the paper tray for
which you wish to change the paper size setting.
Each time the [TRAY SELECT] key () is pressed, a paper tray
will be indicated with a blinking paper feed location indicator.
3. U se the [ORIGINAL SIZE ENTER] key to select the paper size.
The indicator of the selected paper size lights up.
5. Press the [START] key () and then the [PAPER SIZE ENTER]
key.
To change0 the paper size setting of another tray, repeat steps 2 to
3 after pressing the [START] key ().
Note: Affix the paper size label for the paper size selected in step 3 to
the label position on the right end of the tray.
AR-D25/D24 UNPACKING AND INSTALLATION
– 7 –
[4] EXTERNAL VIEW AND INTERNAL STRUCTURE
1. External view
3
1
No.NameNo.NameNo.Name
1Paper feed tray22-step paper feed right cover31-step paper feed right cover
2
2. Internal structure
11
3
1
2
1
6
5
4
9
10
8
Sensors and detectors
No.CodeNameTypeFunction, operationRemark
1DRS1Door open/close sensorPhoto transmissionDetects door open/close.
2PPD1Paper entry sensorPhoto transmissionDetects paper transport.
3CSS1Paper empty sensorPhoto transmissionDetects paper presence/empty.
4CASS1Cassette detection SWContactDetects cassette installation.
5FSOL1Transport solenoidDC solenoidTransports paper. (for clutch)
6PSOL1Paper feed solenoidDC solenoidFeeds paper. (For clutch)
7PPD2Paper entry sensorPhoto transmissionDetects paper transport.AR-D25 only
8CSS2Paper empty sensorPhoto transmissionDetects paper in the cassette.AR-D25 only
9CASS2Cassette detection SWContactDetects cassette installation.AR-D25 only
10PSOL2Paper feed solenoidDC solenoidFeeds paper.AR-D25 only
11PWBInterface PWB——
7
AR-D25/D24 EXTERNAL VIEW AND INTERNAL STRUCTURE
– 8 –
[5] OPERATIONAL DESCRIPTION
[6] DISASSEMBLY AND ASSEMBLY
1. Paper transport path
Transport roller
PF sensor
Copier
cassette
250-sheet paper
feed unit (upper)
250-sheet paper
feed unit (Lower)
Paper feed roller
2. Operational descriptions
The operations are controlled by the main body of the copier. the paper
feed roller (semi-circular roller) and the transport roller are driven by the
gear of the copier.
Paper is separated by the paper feed roller and the separation pawl,
and detected by the PF sensor, then transported to the Resist roller by
the transport roller.
1. Rear cover
[AR-D24]
1
2
1
[AR-D25]
1
To copier's PS
5
Copier
4
3
1
2
250-sheet paper feed unit
Paper lead edge
No.NameOperation
1Paper feed rollerPicks up paper.
2Separation pawlPrevents against double feed of paper.
3Transport rollerTransports paper.
4Paper entry sensor Detects paper transport.
5Resist rollerMakes synchronization between the
paper lead edge and the image lead
edge.
1
2. Paper feed unit section
[AR-D24]
4
2
2
1
5
3
3
AR-D25/D24 OPERATIONAL DESCRIPTION
– 9 –
[AR-D25]
4. Transport roller gear section
5
1
1
6
3
2
6
3
4
3. Paper feed solenoid, transport solenoid
2
2
1
5. Transport roller
[AR-D24]
(3)
(2)
(1)
B
A
(1)
1
AR-D25/D24 DIS ASSEMBLY AND AS SEMBLY
– 10 –
[Only the upper row of AR-D25]
(3)
(2)
(1)
B
A
6. Paper feed roller clutch
7. Paper feed roller
(1)
1
Note: When asembling the paper feed roller cluch, fit and insert section
A (D cut) into the shaft as shown in the figure.
A
2
1
3
2
*Be sure to rotate this part 180 degrees(It turns upward) after attach-
ment.
[7] MAINTENANCE
No.NameWork item
1Paper feed roller PA ass’y *1 Cleaningo
2Transport rollerCleaningo
*1 : Replace = 150K
service call
1
When
Remark
Note: For disassembly and assembly of the paper feed r oller and the
AR-D25/D24 MAINTENANCE
– 11 –
2
transport roller, refer to [6] DISASSEMBLY AND ASSEMBLY.
Rank A : Maintenance parts, and consumable parts which are not included in but closely related to maintenance parts
Rank B : Performance/function parts (sensors, clutches, and other electrical parts), consumable parts
Rank E : Unit parts including PWB
Rank D : Preparation parts (External fitting, packing, parts packed together)
Rank C : Parts other than the above (excluding sub components of PWB)
Because parts marked with "!" is indispensable for the machine safety maintenance and operation, it must be replaced with
the parts specific to the product specification.
F Other than this Parts Guide, please refer to documents Service Manual(including Circuit Diagram)of this model.
F Please use the 13 digit code described in the right hand corner of front cover of the document, when you place an order.
F For U.S. only-Use order codes provided in advertising literature. Do not order from parts department.
Joint gear(40T)連結ギア
Joint arm連結アーム
Joint arm spring連結アームスプリング
E type ringEリング
Clutch bossクラッチボス
Clutch springクラッチスプリング
Clutch pipeクラッチスリーブ
Clutch gear(29T)クラッチギア
Metal D(B-F6-7)メタル D
1ST harness1 ST ハーネス
1ST transport roller一段搬送ローラー
Photo sensor(GP1 A71A1)フォトセンサー
Paper feeding solenoid給紙ソレノイド
PF bearingPF 軸受
E type ringEリング
Cam boss A1カムボス A1
Pipe A手差しクラッチスリーブ A パイプ
Clutch spring A手差しクラッチスプリング A
Spring pinスプリングピン
Cam boss A2カムボス A2
Tray detect switchトレイ検知スイッチ
Paper feeding earth spri ng給紙アーススプリング
2ND gear(18T/26 T)二段ギア
Gear(16T)ギア
Paper feeding clutch pawl給紙クラッチ爪
Clutch pawl springクラッチ爪スプリング
Transport clutch pawl搬送クラッチ爪
Transport solenoid搬送ソレノイド
Screw(3×6)ビス
PPDI actuatorPPDI アクチューター
CICS actuatorCICSアクチュエーター
Paper feeding frame給紙フレーム
Boss reinforce plateボス補強板
Poly sliderポリスライダー
Break springブレーキスプリング
Bearing軸受
Break sleeveブレーキスリーブ
Screw(3×6)ビス
Coreコア
Washerワッシャー
Heater unit (1ST tray)(Japan) 除湿ヒーター
Screw(3×8)(Japan) ビス
PPDIACT springPPDIACT 復帰スプリング
Cluch pawl spong(Europe) クラッチ爪スポンジ
Toransport cluch paw l spong(Europe) 搬送クラッチ爪スポンジ
Heater raditate plate(Japan) ヒーター放熱板
Screw(3×8)(Japan) ビス
Paper feed rol ler shaft給紙ローラーシャフト
Paper feed rol ler hold er給紙ローラーホルダー
Screw(3×12)ビス
Roller colorローラーカラー
Paper feed rol ler bracke t給紙ローラーブラケット
Paper feed rol ler gum給紙ローラーゴム
2nd heater har ness(Japan) 2ND ヒーターハーネス
Paper feeding unit (1S T tray)(except Europe) 給紙ユニット
Paper feeding shaft給紙シャフト
Paper feed rol ler gum給紙ローラーゴム
DESCRIPTION
– 3 –
2
1ST トレイ給紙ユニット (1ST Tray paper feeding unit)[AR-D24]
Joint gear(40T)連結ギア
Joint arm連結アーム
Joint arm spring連結アームスプリング
E type ringEリング
Clutch bossクラッチボス
Clutch springクラッチスプリング
Clutch pipeクラッチスリーブ
Clutch gear(29T)クラッチギア
Metal D(B-F6-7)メタル D
2ND harness 12ND ハーネス 1
2ND harness 22ND ハーネス 2
2ND transport roller二段搬送ローラー
Photo sensor(GP1 A71A1)フォトセンサー
Paper feeding solenoid給紙ソレノイド
PF bearingPF 軸受
E type ringEリング
Cam boss A1カムボス A1
Pipe A手差しクラッチスリーブ A パイプ
Clutch spring A手差しクラッチスプリング A
Spring pinスプリングピン
Cam boss A2カムボス A2
2ND 26MXL pulley2ND26MXL プーリー
Pin(φ2-8)平行ピン
Tray detect switchトレイ検知スイッチ
Paper feeding earth spri ng給紙アーススプリング
2ND gear(18T/26 T)二段ギア
Gear(16T)ギア
Paper feeding clutch pawl給紙クラッチ爪
Clutch pawl springクラッチ爪スプリング
Transport clutch pawl搬送クラッチ爪
Transport solenoid搬送ソレノイド
Screw(3×6)ビス
PPDI actuatorPPDI アクチューター
CICS actuatorCICSアクチュエーター
Paper feeding frame給紙フレーム
Boss reinforce plateボス補強板
Poly sliderポリスライダー
Break springブレーキスプリング
Bearing軸受
Break sleeveブレーキスリーブ
Screw(3×6)ビス
Coreコア
Washerワッシャー
Heater unit (2ND tray)(Japan) 除湿ヒーター
Screw(3×8)(Japan only) ビス
PPDIACT springPPDIACT 復帰スプリング
Heater raditate plate(Japan) ヒーター放熱板
Screw(3×8)(Japan) ビス
Paper feed rol ler shaft給紙ローラーシャフト
Paper feed rol ler hold er給紙ローラーホルダー
Screw(3×12)ビス
Roller colorローラーカラー
Paper feed rol ler bracke t給紙ローラーブラケット
Paper feed rol ler gum給紙ローラーゴム
2nd heater har ness(Japan) 2ND ヒーターハーネス
Paper feeding unit(Top)給紙ユニット上段
Paper feeding unit(Bott om)給紙ユニット下段
Paper feeding shaft給紙シャフト
Paper feed rol ler gum給紙ローラーゴム
DESCRIPTION
– 7 –
4
2ND トレイ給紙ユニット (2ND Tray paper feeding unit)[AR-D25]