Sharp FO 4400 Service Manual
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- Sharp FO 4400 | Service Manual - Page 1
FO-4400U FO-CS1 SERVICE MANUAL No. 00ZFO4400USME Illustration: FO-4400 FACSIMILE MODEL FO-4400 MODEL FO-4400 SELECTION CODE DESTINATION U U.S.A./Canada OPTION:PAPER CASSETTE MODEL FO-CS1 Illustration: FO-CS1 CAUTION OPTION Toner cartridge: Drum cartridge: Option memory: Verification stamp: - Sharp FO 4400 | Service Manual - Page 2
Specifications 1-1 [2] Life of consumable 1-1 [3] Operation panel 1-2 [4] Transmittable documents 1-3 [5] Installation 1-4 [6] Quick reference guide 1-11 CHAPTER 2. ADJUSTMENTS [1] Adjustments 2-1 [2] Diagnostics and service soft switches 2-2 [3] Troubleshooting 2-35 [4] Error code table - Sharp FO 4400 | Service Manual - Page 3
FO-4400U FO es conformément aux instructions du fabricant. (Swedish supply PWB of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual is used, and that the iron temperature is adjusted accordingly. 3 Soldering As the melting point of - Sharp FO 4400 | Service Manual - Page 4
> To avoid problems with supplies, please don't use supplies from other units. Please use new supplies, when supply changes are required. [2] Life of consumable Section Part Toner cartridge Replacement cartridge (FO-50ND) Drum cartridge Replacement cartridge (FO-47DR) Paper feed Transfer - Sharp FO 4400 | Service Manual - Page 5
[3] Operation panel FO-4400U FO-CS1 1 23 4 PLAIN PAPER LASER FACSIMILE HALF TONE ALARM STANDARD TONER Toner Cartridge Drum Cartridge Paper Supply ALARM Guide FINE LINE IN USE SUPER FINE Paper Jam Paper Size Error Printer Cover Open Out Put Tray Error CONTRAST RESOLUTION 5 6 7 01 Q / - Sharp FO 4400 | Service Manual - Page 6
fed into the machine at a time. Insert next page into feeder as current page is being scanned. 2. Paper Thickness & Weight sheet only (manual feed) NOTES: • • If you need to send or copy more 50 pages, place the additional pages and carefully in the feeder just before the last page is scanned. - Sharp FO 4400 | Service Manual - Page 7
machine to operate properly. Press the power switch to turn on the power. 5 Verification Stamp option (FO-45VS) Note: This feature is available as an option. Consult your dealer if you wish to use this feature. When transmitting a document, you can have the fax machine stamp each document page as - Sharp FO 4400 | Service Manual - Page 8
FO-4400U FO-CS1 3. Installing the printer cartridges (Toner cartridge: FO-50ND) (Drum cartridge: FO-47DR) Follow the steps below to install or replace the toner and drum cartridges. • The initial starter toner cartridge included with the fax machine can print approximately 3000 letter-size pages (4% - Sharp FO 4400 | Service Manual - Page 9
out of the machine and shaking it. This may increase the number of pages that can be printed before the toner runs out. G When to replace the drum cartridge When the drum cartridge nears the end of its life, the ALARM indicator on the operation panel will blink and DRUM LIFE REACHED will appear in - Sharp FO 4400 | Service Manual - Page 10
FO-CS1) Note: To use A4 paper in the paper cassette, you must have a service technician adjust the cassette. 1 Grasp the hand-hold on the cassette and pull the cassette out until it stops. 2 Push the pressure plate down until it locks into position. 5. Clearing paper jams Clearing a jammed - Sharp FO 4400 | Service Manual - Page 11
steps below to clear the jam. 1 Press the green release and open the print compartment cover. • Caution! The fusing unit inside the print compartment becomes very hot during operation. Be careful not to touch the inside of the compartment. 5 Replace the drum cartridge. FO-4400U FO-CS1 • Make sure - Sharp FO 4400 | Service Manual - Page 12
Installing the paper cassette (FO-CS1) Installing the second paper cassette Important: Be sure to turn off the power and unplug the power cord 1before proceeding. Press the cover release to open the print compartment cover. 5 Place the machine on top of the cassette. 1. Insert the cable guide into - Sharp FO 4400 | Service Manual - Page 13
with ""P". Secure the screws in the order indicated by the numbers. FO-4400U FO-CS1 G Attach the support plate to the left side of the machine, inserting the top edges of the plate under the machine housing. Make sure that the guides fit into the holes as shown. Secure the plate with screws as - Sharp FO 4400 | Service Manual - Page 14
cartridge into the machine (make sure that the tab is facing out). 4 Replace the ADF exit tray. 2 1 3 [6] Quick reference guide SENDING FAXES Place your document (up to 50 letter-size pages . 2. Press 1 to store a number. (Press 2 to clear a number.) 3. To store a Rapid Key number, press the - Sharp FO 4400 | Service Manual - Page 15
and/or setup as necessary. 1. Adjustments Adjustments of output voltage (FACTORY ONLY) 1. Install the power supply unit in the machine. 2. Set the recording paper and document. 3. When the document is loaded, power is supplied to the output lines. Confirm that outputs are within the limits below - Sharp FO 4400 | Service Manual - Page 16
PATTERN 3 05 START CHECK PATTERN 4 06 START PAPER FEED AGING 1 07 START PAPER FEED AGING 2 08 START BIAS ADJUST MODE2 09 START LIFE SET MODE 10 START LIFE ALL CLEAR 11 START LIFE ENTRY MODE 12 START LIFE CLEAR MODE Memory clear when power is turned on Pressing the START and - Sharp FO 4400 | Service Manual - Page 17
not received.) Outputting method of soft switch list In the soft switch mode, press the REPORT key, and the soft switch list will be output. If the recording paper runs out or is clogged, the key error buzzer will 5 sound with the process not received. Storage of data In the following case - Sharp FO 4400 | Service Manual - Page 18
state. (Clear the memory with the diagnosis.) K) Memory clear mode Clear the back-up memory to initialize the soft switches. The Flash Memory will be initialized. Then, the initialized list be output. 1 Memory clear is executed. 2 The result that says initialized is printed. NOTE: The life system - Sharp FO 4400 | Service Manual - Page 19
concerned alarm buzzer sounds only when the error occurs. 5 The result is printed. NOTE: • During operation of this diagnosis, dual operation is not possible at all. • If this is excessively repeated, it will shorten the life of the flash memory. M) All FAX/TEL. entry mode This is a function to - Sharp FO 4400 | Service Manual - Page 20
FO-4400U FO-CS1 R) Stamp aging mode This is a mode to execute the continuous drive aging screen during execution STAMP AGING TIMES = 13 PAGES = 1 Print total number Page number 3of times By the time of production. Set 2 sheets of document. (No problem if there are 2 sheets or 2 more.) 3 sheet - Sharp FO 4400 | Service Manual - Page 21
Rapid key 10: Life all clear The mode is used to clear the life counter of the printer of the counter of the auto feeder. NOTE: The counter shows the operational state of the printer (how many sheets have been printed since start of use?). The ordinary memory does not reset the counter. Accordingly - Sharp FO 4400 | Service Manual - Page 22
The counter shows the operational state of the printer (how many sheets have been printed since start of use?). The ordinary memory does not reset the counter. Accordingly, it is necessary to reset this counter in addition to the ordinary memory clear if the content in the memory on the control PWB - Sharp FO 4400 | Service Manual - Page 23
the following key entries in sequence. Press MENU 9 8 7 START A START FO-4400U FO-CS1 SFT S W 1 = 0 0 0 0 0 0 0 0 SFT S W 1 = 1 0 0 0 0 0 0 0 SFT S W 1 = 1 0 0 0 0 0 0 0 SFT S W 1 = 1 0 0 0 0 0 0 0 SFT S W 1 = 1 0 0 0 0 0 0 0 SFT S W 2 = 0 0 0 0 0 0 0 0 S F T S W 99 = 0 0 0 0 0 0 0 0 Press - Sharp FO 4400 | Service Manual - Page 24
from manual receive Binary input 8421 0 (0: No switch) No. = 5 6 7 8 (Data No.) 0 EX 0000 0 eg. Switch to auto receive is set to disable. 0 Communication results printout Printed at Printed at Printed at Not printed Printed error only error/timer/ transmis- every time memory sion - Sharp FO 4400 | Service Manual - Page 25
2 3 DIS receive acknowledge during G3 transmission SW7 4 Non-modulated carrier in V.29 transmission mode 5 CNG send when manual TX 6 Protocol monitor 7 Line 0 500ms 1000ms 0 3sec 1sec No BEEP No BEEP No. 5 0 0 1 1 0 No. 6 0 1 0 1 0 Handle to error Handle to no error 0 2 - 11 - Sharp FO 4400 | Service Manual - Page 26
FO-4400U FO-CS1 SW DATA NO. NO. 1 2 3 4 SW10 5 6 7 8 1 2 3 4 SW11 5 6 7 8 1 2 3 4 SW12 5 6 7 8 1 2 3 SW13 4 5 6 7 8 1 2 3 4 SW14 5 6 7 8 ITEM Memory retransmission times Memory is set for N=14. V.34 mode function in case of manual communication On Off V.34 mode function On Off V.34 control - Sharp FO 4400 | Service Manual - Page 27
3 Reserved 4 SW19 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 Reserved 2 Reserved 3 Reserved 4 SW20 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved FO-4400U FO-CS1 (ms) No. 5 No. 6 No. 7 No. 8 No. 5 No. 6 No. 7 No. 8 1 200 0 0 0 0 OFF 0 0 0 0 Switch setting and - Sharp FO 4400 | Service Manual - Page 28
FO-4400U FO-CS1 SW DATA NO. NO. 1 2 3 SW21 4 5 6 7 8 1 2 3 4 SW22 5 6 7 8 1 2 3 4 SW23 5 6 7 8 1 2 3 4 SW24 5 6 7 8 1 2 3 4 SW25 5 6 7 8 1 2 3 4 SW26 5 6 7 8 1 2 3 4 SW27 5 6 7 8 ITEM Reserved Reserved Reserved Busy tone detection frequency Reserved Reserved Reserved Reserved Reserved - Sharp FO 4400 | Service Manual - Page 29
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved ITEM Switch setting and function 1 0 FO-4400U FO-CS1 Initial setting 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 For For U.S.A. Canada 00 11 10 00 10 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 1 1 0 1 1 1 0 Remarks 2 - 15 - Sharp FO 4400 | Service Manual - Page 30
FO-4400U FO-CS1 SW DATA NO. NO. 1 Reserved 2 Reserved 3 Reserved 4 SW34 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 2 3 SW35 4 5 6 7 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 1 2 3 SW36 4 5 6 7 8 1 2 3 4 SW37 5 6 7 8 1 2 3 4 - Sharp FO 4400 | Service Manual - Page 31
8 Reserved 1 Reserved 2 Reserved 3 Reserved 4 SW45 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved ITEM Switch setting and function 1 0 FO-4400U FO-CS1 Initial setting 1 0 0 0 1 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Remarks 2 - 17 - Sharp FO 4400 | Service Manual - Page 32
FO-4400U FO-CS1 SW DATA NO. NO. 1 Reserved 2 Reserved 3 Reserved 4 SW46 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 Reserved 2 Reserved 3 Reserved 4 SW47 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 Reserved 2 Reserved 3 - Sharp FO 4400 | Service Manual - Page 33
8 Reserved 1 Reserved 2 Reserved 3 Reserved 4 SW57 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved ITEM Switch setting and function 1 0 FO-4400U FO-CS1 Initial setting 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Remarks 2 - 19 - Sharp FO 4400 | Service Manual - Page 34
FO-4400U FO-CS1 SW DATA NO. NO. ITEM 1 Reserved 2 Reserved 3 Reserved 4 SW58 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved Key buzzer volume 5 6 7 Reserved 8 Reserved 1 2 3 4 SW62 5 6 7 8 1 2 3 4 SW63 5 6 7 8 Speaker volume Reserved Reserved Ringer volume Reserved Reserved - Sharp FO 4400 | Service Manual - Page 35
The 2nd priority cassette The 3rd priority cassette Cassette selection of separate page Reserved Reserved Reserved Power save mode Density adjustment of print bias Drum life detection Reserved Distinctive ring pattern 1 2 3 SW68 4 5 6 7 8 Reserved Reserved Reserved Reserved Reserved Reserved - Sharp FO 4400 | Service Manual - Page 36
FO-4400U FO-CS1 SW DATA NO. NO. 1 2 3 4 SW69 5 6 7 8 1 2 3 4 SW70 5 6 7 8 1 2 3 4 SW71 5 6 7 8 1 2 3 4 SW72 5 6 7 8 1 2 3 4 SW73 5 printing of activity report Yes (When memory full) No (First data is cleared when memory full) 0 Print out of total time and total number of pages on activity report - Sharp FO 4400 | Service Manual - Page 37
memory input Overseas communication mode selection function Reserved Reduce ratio when copy mode (Except notation: Setting prohibition) Reserved Reserved Density adjustment (when Fine/STD mode) Density adjustment Secure billing code Pause with SHIFT key Reserved Z key pause time (250ms unit) Separate - Sharp FO 4400 | Service Manual - Page 38
FO-4400U FO-CS1 SW DATA NO. NO. 1 2 3 4 SW81 5 6 7 8 1 2 3 4 SW82 5 6 7 8 1 2 3 4 SW83 5 6 7 8 1 2 3 4 SW84 5 6 7 8 1 2 3 4 SW85 5 6 7 8 1 2 3 4 SW86 5 6 7 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved - Sharp FO 4400 | Service Manual - Page 39
Reserved Reserved Reserved Reserved Reserved Reserved Waiting time after dialing Show receiver's name Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved FO-4400U FO-CS1 90sec Yes (Show) Switch setting and function 1 0 Initial setting - Sharp FO 4400 | Service Manual - Page 40
FO-4400U FO-CS1 SW DATA NO. NO. 1 Reserved 2 Reserved 3 Reserved 4 SW94 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 Reserved 2 Reserved 3 Reserved 4 SW95 5 Reserved Reserved 6 Reserved 7 Reserved 8 Reserved 1 Reserved 2 Reserved 3 - Sharp FO 4400 | Service Manual - Page 41
Footer print When set to "1", the date of reception, the sender machine No., and the page No. are automatically recorded at the end of reception. SW5 No. 5 Reserved Set to "0". SW5 No. 6 Substitute reception Selection of substitute reception in the case of recording paper ex-hausted or paper jam. If - Sharp FO 4400 | Service Manual - Page 42
an echo suppression problem, if set to 1. SW7 No. 5 CNG send when manual TX CNG signal sending ON/OFF in case of manual transmission is set. SW7 No. 6 Protocol monitor Normally set to "0". If set to "1", communication can be checked, in case of troubles, without using a G3 tester or other tools - Sharp FO 4400 | Service Manual - Page 43
to "1". SW28 No. 6 ~ No. 8 Reserved Set to "0". SW29 No. 1 ~ No. 4 Reserved Set to "0". SW29 No. 5 Reserved Set to "1". SW29 No. 6 ~ No. 8 Reserved Set to "0". 2 - 29 FO-4400U FO-CS1 - Sharp FO 4400 | Service Manual - Page 44
FO-4400U FO-CS1 SW30 No. 1 ~ No. 4 Reserved Set to "0". SW30 No. 5 Reserved (For U.S.A.) Set to "1". SW30 No. 6 Reserved (For U.S.A.) Set to "1". SW30 No. 6 Reserved (For Canada) Set - Sharp FO 4400 | Service Manual - Page 45
dial call is activated in the memory input mode when one document is completely read or when all pages are completely read. SW65 No. 1, No. 2 Cassette selection To set selective modes for detail paper cassettes of the printer. 00: Manual To select detail paper in the first prior- ity cassette - Sharp FO 4400 | Service Manual - Page 46
the data in the memory will be cleared. When the switch function is set to "0" (NO), the data in memory will be deleted from the oldest as it reaches the maximum memory capacity (approx. 50 items). SW74 No. 2 Print out of total time and total number of pages on activity report Used to make a choice - Sharp FO 4400 | Service Manual - Page 47
to "0". FO-4400U FO-CS1 SW79 No. 1 Secure billing code When the tel. billing code function is ON, the operation of secure billing code is enabled . SW79 No. 2 Pause with SHIFT key The SHIFT key pause time is set. SW79 No. 3 Reserved Set to "0". SW79 No. 4 ~ No. 8 Z key pause time (250ms unit) The - Sharp FO 4400 | Service Manual - Page 48
FO-4400U FO-CS1 SW88 No. 1 ~ No. 8 Reserved Set to "0". SW89 No. 1 ~ No. 7 This switch is used to note the receiver's name on the transaction report and activity report. When this switch is set to "0", the receiver's dial number is printed on the report. SW92 No. 5 ~ No. 8 Reserved Set to "0". SW93 - Sharp FO 4400 | Service Manual - Page 49
Other party Problem mode Frequency: Confirmation item ***** Facsimile communication problem ***** Fax Tel No.: Name Address Contact person Name Address Contact person Line: Domestic / international Mode: G3 Reception / Transmission Automatic reception / Manual reception Automatic - Sharp FO 4400 | Service Manual - Page 50
FO-4400U FO-CS1 [4] Error code table 1. Communication error code table G3 Transmission Code Final received signal 0 Incomplete signal frame 1 NSF, DIS 2 CFR 3 FTT 4 MCF 5 PIP or PIN 6 RTN or RTP 7 No signal or DCN 8 − 11 − 12 − 13 − Error Condition (Receiver side) Cannot - Sharp FO 4400 | Service Manual - Page 51
super G3 mode E-31 Details of E-29 ~ 31 E-29 Handshaking error in V.8 negotiation procedure E-30 Handshaking error in V.34 line probing procedure E-31 Handshaking error in V.34 HDX training procedure 2. Service call error massage Message REMOVE ORIGINAL (S) NO PAPER (TRAY) NO PAPER - Sharp FO 4400 | Service Manual - Page 52
In case of memory transmission the retransmission is performed in the following conditions. No. Conditions Operation 1 When a communication error occurred in communication in the The retransmission of this communication is performed after setting Super G3 mode due to page 1 MCF reception - Sharp FO 4400 | Service Manual - Page 53
1-1. Document feed block and diagram Back guide Separate rubber Document sensor Front sensor Transfer plate Document Document CIS unit Transfer roller Scanner feed roller Scanner drive roller(2) Scanner drive roller(1) Fig. 1 2. Document feed operation 1) As shown in Fig.1, the document - Sharp FO 4400 | Service Manual - Page 54
FO-4400U FO-CS1 [2] Printer description 1. COMPONENTS LAYOUT 1 23 4 5 6 7 8 18 17 15 14 13 12 Fig. 1 1. Scanner Drive Roller 2 2. Operation Panel 3. CIS Unit 4. Scanner Drive Roller 1 5. Scanner Feed Roller 6. Transfer Roller 9 7. Upper Cover 8. Printer Head 9. Drum Cartridge 10 10. Toner - Sharp FO 4400 | Service Manual - Page 55
PWB and controls all printer operation. Power Supply PWB unit Converts the power voltage from AC voltage into DC voltage and supplies that to H1. Laser Diode Drive PWB unit Detects the start point of printing via the laser diodes and SOS sensor, and illuminates the PC Drum with (Inside of the - Sharp FO 4400 | Service Manual - Page 56
After this, the paper is fed out onto the Print Tray. Print Exit Exposure Print Head Unit Drum Cartridge Development Toner Cartridge Fusing PC Drum Image Transfer 2nd Option Cassette Unit Fig. 4 6. PAPER TAKE-UP SECTION 7. DRUM CHARGE 6-1. Multi-Purpose Tray When the Paper Take-Up Solenoid - Sharp FO 4400 | Service Manual - Page 57
to the invisible static image on the PC Drum and a toner image (developed image) is created on the drum surface. Toner Cartridge Reflector Mirror FO-4400U FO-CS1 Charged Surface PC Drum Print Head Unit Laser exposed surface: approx. -50V SOS Sensor PWB-D Laser Diode Polygon Motor (M3) Fig - Sharp FO 4400 | Service Manual - Page 58
toner because the paper is always pressed by the PC Drum and the Image Transfer Roller. · When cleaning the Image Transfer Roller and before printing The printer is initialized upon power supply. The Heater Lamp then turns on and the printer and 190°C during printing. Unless an error occurs or the - Sharp FO 4400 | Service Manual - Page 59
-4400U FO-CS1 Controller Initiates the printing command. /PRINT Engine Prepares for printing - Print head - Feeds a sheet of paper, etc. Receives the vertical direction synchronizing signal. Receives the mainscanning direction synchronizing signal. Sends video data for one scan. NO Has one page - Sharp FO 4400 | Service Manual - Page 60
FO-4400U FO-CS1 13. Timing chart 13-1. Print Starting Printing Command OFF (/PRINT) ON Polygon Motor(M3) OFF Main Motor (M1) OFF ON Paper Take-Up Solenoid (SL1) OFF Paper Take-Up Sensor (PS1) OFF ON Drum Charge OFF DC Charge Exposure (output) OFF ON Development (output) OFF Charge + Image - Sharp FO 4400 | Service Manual - Page 61
procedures FO-4400U FO-CS1 • This chapter mainly describes the disassembly procedures. For the assembly procedures, reverse the disassembly procedures. • Easy and simple disassembly/assembly procedures of some parts and units are omitted. For disassembly and assembly of such parts and units, refer - Sharp FO 4400 | Service Manual - Page 62
FO-4400U FO-CS1 2 Rear cabinet Parts list (Fig. 2) No. Part name Q'ty 1 Main unit 1 2 Screw (3×10) 1 3 ROM cover 1 4 Screw (3×10) 6 5 Rear cabinet 1 1 2 1 3 4 5 4 4 3 2 HOOK 4 4 4 HOOK HOOK 5 4 Fig. 2 3 - 10 - Sharp FO 4400 | Service Manual - Page 63
3 PWB plate, Right cabinet 1 2 3 Control 4 2 PWB 3 5 Printer PWB Parts list (Fig. 3) No. Part name 1 Main unit 2 Screw (3×6) 3 PWB plate 4 Screw (3×10) 5 Right cabinet FO-4400U FO-CS1 Q'ty 1 6 1 2 1 1 2 2 LIU PWB 1 HOOK Fig. 3 3 - 11 5 HOOK 4 HOOK 4 - Sharp FO 4400 | Service Manual - Page 64
4400U FO-CS1 4 PWB unit Parts list (Fig. 4) No. Part name Q'ty 1 Main unit 1 2 Screw (3×6) 7 3 Screw (3×10) 1 4 Connector 20 5 LIU PWB unit 1 6 Control PWB unit 1 7 Printer PWB unit 1 1 2 1 3 4 5 6 6 7 4 2 Control PWB 4 2 7 LIU PWB 2 3 2 Control PWB 5 4 4 Printer - Sharp FO 4400 | Service Manual - Page 65
5 Operation panel unit, Upper cover unit Parts list (Fig. 5) No. Part name 1 Main unit 2 Screw (3×10) 3 Screw (3×6) 4 Operation panel unit 5 Screw (3×8) 6 Upper cover unit FO-4400U FO-CS1 Q'ty 1 1 6 1 1 1 1 25 36 4 4 3 3 4 1 3 6 1 5 Fig. 5 3 - 13 3 2 - Sharp FO 4400 | Service Manual - Page 66
Q'ty No. Part name Q'ty 1 Main unit 2 Screw (3×6) 1 11 Screw (3×6) 1 5 12 Paper feed tray unit 1 3 Screw (3×10) 4 Screw (3×6) 2 13 Screw (3×10) 1 1 14 Tray width guide, front 1 5 Front left frame 6 Screw (3×10) 1 15 Screw (3×10) 1 2 16 Tray width guide, rear 1 7 Speaker holder plate - Sharp FO 4400 | Service Manual - Page 67
2 8 Inner left cabinet unit Fig. 7 1 1 2 3 Parts list (Fig. 7) No. Part name 1 Main unit 2 Screw (3×6) 3 Rear left frame 4 Screw (3×6) 5 Bottom left frame FO-4400U FO-CS1 Q'ty 1 7 1 1 1 2 5 4 Parts list (Fig. 8) No. Part name Q'ty 1 Main unit 1 2 Screw (3×8) 4 3 Inner left - Sharp FO 4400 | Service Manual - Page 68
FO-4400U FO-CS1 9 Power supply PWB 1 25 36 47 8 6 5 5 8 5 7 Parts list (Fig. 9) No. Part name Q'ty 1 Main unit 1 2 Screw (3×6) 4 3 Connector 4 4 Power supply PWB unit 1 5 Screw (3×6) 3 6 Screw (4×6) 1 7 Power supply PWB plate 1 8 Power supply PWB 1 1 3 2 3 2 2 2 4 - Sharp FO 4400 | Service Manual - Page 69
10 Scanner frame unit (1/2) 1 2 3 4 5 6 7 8 4 5 4 Parts list (Fig. 10) No. Part name 1 Scanner frame unit 2 Screw (3×8) 3 Operation panel unit 4 Screw (3×10) 5 Screw (3×10) 6 Document guide upper 7 Stopper 8 Left upper cabinet FO-4400U FO-CS1 Q'ty 1 1 1 5 2 1 1 1 3 2 4 5 6 1 1 8 7 - Sharp FO 4400 | Service Manual - Page 70
FO-4400U FO-CS1 11 Scanner frame unit (2/2) Parts list (Fig. 11) No. Part name 1 Scanner frame unit 2 Transfer bearing 3 Feed gear (49z) 4 DR bearing 5 Scanner drive roller 2 6 Scanner drive roller 1 7 Scanner bearing 1 8 Feed gear (73z) 9 Bearing 10 Scanner feed shaft 1 11 Scanner - Sharp FO 4400 | Service Manual - Page 71
No. Part name 1 14 Separate gum 3 15 Separate sheet 1 16 Transfer plate piece 1 17 Input pressure spring 1 18 Back sheet 2 19 Paper brush 1 20 Back guide 1 21 Back bracket 1 22 Document guide upper 4 23 Screw (3x10) 2 24 LCD support plate 4 25 Flat cable 1 26 LCD panel unit 1 2 23 - Sharp FO 4400 | Service Manual - Page 72
FO-4400U FO-CS1 13 Upper cover 1 2 16 3 5 8 17 4 6 9 18 7 10 19 11 20 12 21 13 22 14 23 15 24 24 Parts list (Fig. 13) No. Part name Q'ty No. Part name Q'ty 1 Screw (3×10) 5 2 Screw (3×8) 2 3 Upper cover lock spring 1 4 Upper cover lock nail 1 5 Drum cartridge detect 1 lever - Sharp FO 4400 | Service Manual - Page 73
14 Wire treatment Parts list (Fig. 14) No. Part name 1 Band (100mm) 2 Core (F2125) 3 Core (F2124) 4 Band 5 Screw (3x10) Control PWB Panel cable Sensor cable CIS cable 1 Motor cable FO-4400U FO-CS1 Q'ty 4 1 2 1 1 CNPW Printer PWB 1 1 CN15 5 4 CN12 Speaker cable LIU cable 3 2 Panel - Sharp FO 4400 | Service Manual - Page 74
FO-CS1 15 High voltage PWB unit (HV1) CN3 g Cooling Fan Motor f g h e CN1 f a a b h e High voltage PWB(HV1) d b c d c 1. Remove the Cooling Fan Motor.(2 screws) 2. Remove the 2 covers. (9 screws) 3. Remove the 2 connectors. 4. Remove the High Voltage PWB.(2 screws) 1. Remove the Paper - Sharp FO 4400 | Service Manual - Page 75
16 Main motor (M1) 1. Remove the gear plate.(4 screws) 2. Remove 2 gears. FO-4400U FO-CS1 3. Remove the left side plate. (4 screws and 1 connector) 5. Remove the cartridge positioning plate. (Tabs at 4 places) 6. Remove the Main Motor Unit (M1). (4 screws) Fig. 16 3 - 23 - Sharp FO 4400 | Service Manual - Page 76
FO-4400U FO-CS1 17 Paper take-up roller 1. Place the printer with its backside down. 2. Unhook the spring and remove the right-hand side of the Paper Take-up Roller shaft from its bushing. 3. Remove the Paper Take-up Roller. Fig. 17 18 Print head unit (PH) (a) (c) (b) Fig. 18 19 Paper - Sharp FO 4400 | Service Manual - Page 77
is to be replaced as a unit at about every 50,000 printed pages. *: Use the following procedure when a part comprising the Fusing Unit is to be replaced individually to correct an image problem or the defective part. 2. Remove the sensor fixing bracket and the Paper Exit Sensor (PS3). 3. Remove the - Sharp FO 4400 | Service Manual - Page 78
FO-4400U FO-CS1 21 Fusing unit (2/2) Heater Lamp Voltage Mark (b) (a) (c) 8. Remove the lamp holder. the roller. Thermostat (TS1) Thermistor (TH1) Fig. A Backside of Fusing Unit Harness Fig. 21 12. Remove the Fusing Paper Separators. (At 4 places) 13. Remove the Thermistor (TH1). (1 screw) - Sharp FO 4400 | Service Manual - Page 79
22 Paper cassette (FO-CS1) 1 1 2 3 4 5 6 Parts list (Fig. 22) No. Part name 1 Paper cassette ass'y 2 Screw (3×10) 3 Screw (3×10) 4 Screw (3×6) 5 Screw (3×12) 6 Bottom plate 2 2 2 FO-4400U FO-CS1 Q'ty 1 3 4 1 1 1 4 5 1 3 3 3 3 6 Fig. 22 3 - 27 - Sharp FO 4400 | Service Manual - Page 80
FO-4400U FO-CS1 23 Cassette case unit, Option cassette PWB unit (FO-CS1) 1 2 3 4 3 5 6 7 4 Hook Parts list (Fig. 23) No. Part name Q'ty 1 Cassette cabinet unit 1 2 Cassette case unit 1 3 Paper sensor lever 1 4 Sensor guide plate 1 5 Connector 4 6 Screw (3×10) 2 7 - Sharp FO 4400 | Service Manual - Page 81
13 10 89 7 66 11 12 6 13 FO-4400U FO-CS1 Parts list (Fig. 24) No. Part name Q'ty 1 Cassette cabinet unit 1 2 Screw (3×8) 1 3 Screw (3×10) 1 4 Screw (3×10) 1 5 Front support bracket 1 6 Screw (3×10) 3 7 Clutch spring 1 8 Paper feed clutch gear 1 9 PU roller bearing 1 10 - Sharp FO 4400 | Service Manual - Page 82
FO-4400U FO-CS1 25 Cassette cabinet (FO-CS1) Parts list (Fig. 25) No. Part name Q'ty 1 Cassette cabinet unit 1 2 Screw (3×10) 2 3 Cassette paper guide 1 4 Idler gear 1 5 Earth spring 1 6 Lever joint 1 1 7 Pinch roller 2 8 Pinch roller shaft 1 9 Pinch roller spring 2 10 - Sharp FO 4400 | Service Manual - Page 83
26 Cassette case (1/2) (FO-CS1) 1 15 11 9 2 16 12 10 3 6 17 13 47 14 58 2 3 Parts list (Fig. 26) No. Part name 1 Cassette case unit 2 Screw (3×10) 3 Cassette push up plate holder 4 Screw (3×10) 5 Cassette back guide plate 6 Cassette back guide 7 Cassette push up plate 8 Cassette - Sharp FO 4400 | Service Manual - Page 84
-CS1 27 Cassette case (2/2) (FO-CS1) Parts list (Fig. 27) No. Part name Q'ty 1 Cassette case unit 1 2 Screw (3×10) 4 3 Cassette width guide/separate nail, front 1 4 Screw (3×10) 4 5 Cassette width guide/separate nail, rear 1 1 4 4 2 4 3 4 5 4 5 2 2 2 3 2 1 Fig. 27 3 - 32 - Sharp FO 4400 | Service Manual - Page 85
document guide under. 4. Remove CIS unit Carefully bend 2 hooks and remove CIS cable. 5. Install the verification stamp (FO-45VS) with the screw (B2) x 1pc. Screw (B1) x 5 Screw (B2) x 1 FO-45VS CIS unit Hook 3 - 33 Document guide under CIS cable Stamp cable to Control PWB Scanner frame unit - Sharp FO 4400 | Service Manual - Page 86
new ink cartridge into the machine (make sure that the tab is facing out). 2 Press down on the protruding tab of the green ink cartridge and pull the cartridge out with your fingers. 4 Replace the original document OUT tray. 1 2 3 Stamp (Ink cartridge) only (20 pieces) Parts code : UINK-2009SC01 - Sharp FO 4400 | Service Manual - Page 87
• DPO Bus Switch (Arbitrator) • Buzzer Clock Generator SCI & PCU-input Power supply Unit PC Operation Panel Unit LCD Module : 20 x 2Line Panel PWB : Tact SW Scanner 8.3"/30ppm A4 CIS : 203dpi(8pixel/mm) Scan Mechanism (Stepping Motor) Printer PWB (MINOLTA CPU on board) MINOLTA NC-L601/16ppm : 406 - Sharp FO 4400 | Service Manual - Page 88
HIGH 10 VOLTAGE PWB UNIT M1 6 MAIN MOTOR M2 COOLING 4 FAN MOTOR CN2 CN8 CN10 CN3 PRINTER PWB CN15 CN12 CN4 CN6 CN13 CN11 3 2 53 15 PS3 PAPER EXIT SENSOR SL1 PAPER TAKE-UP SOLENOID PE1 PAPER EMPTY SENSOR 2 PS4 PAPER OUT SENSOR 2ND PAPER CASSETTE PWB OPTION FO-CS1 2 SPEAKER - Sharp FO 4400 | Service Manual - Page 89
EMPTY SENSOR M2 COOLING FAN MOTOR PH PRINT HEAD UNIT M2 POLYGON MOTOR /SOS 8 +5V 7 PWB-D LD POWER LOW 6 LASER DIODE /LD EN 5 DRIVE PWB /SH,N 4 GND(DG) 3 /L DATA 2 +5V 1 TH1 THERMISTER THERMISTER 1 +5V 2 SL1 PAPER TAKE-UP SOLENOID PS3 PAPER EXIT SENSOR HV1 HIGH VOLTAGE PWB - Sharp FO 4400 | Service Manual - Page 90
CS1 Point- to-point diagram and connector signal name (2) 4 - 4 OPTION FO-8MK MEMORY PWB CNOP DG 1 CLEO 2 DG 3 ALEO 4 DG 5 /WP1 6 +3.3V 7 /NANDWR 8 +3.3V 9 /OPCS 10 +3.3V 11 /BUSYOP 12 R/W 13 /NANDRD 14 /DEN 15 OPD7 16 OPD6 - Sharp FO 4400 | Service Manual - Page 91
supplied to the printer unit and control PWB unit. [2] Circuit description of control PWB 1. General description The control PWB is composed of the following blocks. (1) Main control block (2) Backup memory block (3) Modem block (4) Scanner control block (5) Speaker amplifier (6) Page memory block - Sharp FO 4400 | Service Manual - Page 92
converter DMAC: H-UDI: INTC: MMU: RTC: SCI: SCIF: TLB: TMU: UBC: Direct memory access controller Hitachi user-debugging interface Interrupt controller Memory management unit Realtime clock Serial communication interface (with smart card interface) Serial communication interface (with FIFO) Address - Sharp FO 4400 | Service Manual - Page 93
HD6417706F133 (IC24) Terminal description (1/2) FO-4400U FO-CS1 PIN I/O Name 1 - Vcc-RTC*1 2 O XTAL2 3 I EXTAL2 4 - Vss-RTC*1 49 - VssQ 50 O A4 51 - VccQ Function PIN I/O Name Function RTC power supply (1.9 V) 52 O A5 Address bus On-chip RTC crystal oscillator pin 53 O - Sharp FO 4400 | Service Manual - Page 94
CTS2-/IRQ5/SCPT[5] SCIF transmit clear/external interruption request/SC port 110 I/O AUDATA[1]/PTF[1] AUD data/ input/output port F 148 - Vss Internal power supply (0 V) 111 I/O AUDATA[2]/PTF[2] AUD data/ input/output port F 149 I RESETM- Manual reset request 112 I/O AUDATA[3]/PTF[3] AUD - Sharp FO 4400 | Service Manual - Page 95
other, the decoding from the code data (MMR/MH) in system memory to the image data (bit map data) in the page memory. 9 Page memory (SDRAM) interface SDRAM is used as Page memory. The block has the controller of SDRAM and the arbiter of the accesses to SDRAM. F Scanner motor control The block has - Sharp FO 4400 | Service Manual - Page 96
bus of page memory Data bus of page memory Data bus of page memory Data bus of page memory Data bus of page memory Data bus of page memory Power supply Ground Clock of page memory Data mask of page memory CK enable of page memory CAS of page memory RAS of page memory Write strobe of page memory Chip - Sharp FO 4400 | Service Manual - Page 97
Current control 0 (Phase B) Current direction (Phase A) Power supply FO-4400U FO-CS1 PIN I/O Name Function 163 P VSS Ground 164 O TXAI1 System Reset Signal 170 O XMANRES Manual Reset Signal 171 O XNANDOPCS Chip select (Optional memory) 172 O XNANDSTDCS Chip select (Standard memory) 173 - Sharp FO 4400 | Service Manual - Page 98
-array, which has the following functions. 1 PCU (Print Control Unit) interface The block has the serial communication to PCU, and using this circuitry, controls/detects PCU. 2 I/O port The block has the following functions; LIU interface, Speaker control and sensor detect, which are controlled with - Sharp FO 4400 | Service Manual - Page 99
Print data form main Controller status busy Controller power ready Engine status busy Power supply Ground Printer ready Engine power ready Video data of printer PCU reset bus for PCL board GPO bus for PCL board Not connect Power supply FO-4400U FO-CS1 PIN I/O Name 55 P VSS 56 - N.C 57 B DPOPCL10 - Sharp FO 4400 | Service Manual - Page 100
(RTC) Serial communication data (RTC) Power supply Ground Reset signal for modem chip 1 Reset signal for modem chip 0 Change control of sound source Speaker mute control signal Speaker volume control signal Speaker volume control signal Speaker volume control signal Buzzer signal Reserved for 200V - Sharp FO 4400 | Service Manual - Page 101
) Operation information before shutting off the power supply, user setting content and soft switch content are stored. Even if the power supply of the main body is turned off, it is backed up with a lithium battery (BAT1). FO-4400U FO-CS1 (3) Modem block The block is mainly composed of the G3 FAX - Sharp FO 4400 | Service Manual - Page 102
FO-4400U FO-CS1 3) Configurations, Signaling Rates, and Data Rates Configuration V.90 PCM Modulation PCM V. 4 8 4 - 1. Modulation legend: TCM: Trellis-Coded Modulation QAM: Quadrature Amplitude Modulation PCM: Pulse Coded Modulation FSK: Frequency Shift Keying DPSK: Differential Phase Shift - Sharp FO 4400 | Service Manual - Page 103
FO-4400U FO-CS1 PIN I/O Name 1 - RESERVED 2 IA RS2 3 IA RS3 4 IA RS4 5 IA /CS 6 IA /WR 7 IA /RD 8 OA /RDCLK 9 OA /RLSD 10 OA TDCLK 11 IA TXD 12 OA /CTS 13 PWR VDD1 14 - RESERVED 15 - RESERVED 16 GND VSS 17 - NC 18 IA /RESET Control Unit (Host) DET= Data Terminal Equipment - Sharp FO 4400 | Service Manual - Page 104
. The page memory for printing is composed of the remaining areas of IC5 and can store approx. one page of the image data decoded by CODEC function in MAIN ASIC. The data are stored until they are transferred to Printer PWB with the SUB ASIC and printed. (7) Driver block Sending motor driver (IC3 - Sharp FO 4400 | Service Manual - Page 105
FO-4400U FO-CS1 Pin name Pin No. Pin Description VBB 1, 14 Output stage power-supply supply. [3] Circuit description of CIS unit 1. CIS CIS is an image sensor which puts the original paper and the reading line and focus are previously adjusted as the unit. Due to the full-size sensor, the focus - Sharp FO 4400 | Service Manual - Page 106
FO-4400U FO-CS1 [4] Circuit description of LIU PWB (1) LIU block operational description 1) Block diagram LINE SURGE Signal selection 8. CI detection circuit 9. Power supply and bias circuit CML0 CML0 XEXHS0 XEXHS0 XCI0 XCI0 LO HI HI LO SPEAKER +5V +24VA DG CML0 XESHS0 XCI0 HI MONSEL - Sharp FO 4400 | Service Manual - Page 107
Line brake SP MUTE Speaker tone mute control signal H: Muting (Power down mode) L: Muting cancel (Normal operation) Speaker volume control signal, VOL line. 9. Power supply and bias circuits The voltages of +5V and +24VA are supplied from the control PWB unit. (Example: Fax signal send) LINE - Sharp FO 4400 | Service Manual - Page 108
FO-4400U FO-CS1 [5] Circuit description of operation panel PWB 1. Operational description 1) Operation panel PWB The operation uses the one-chip LCD driver IC to display 20 digits x 2 lines. with an external resistor. 2. Block diagram SENB PAGE PLATE SW KEY MATRIX SEN[7.0] LD[7.0] LEDEN1 - Sharp FO 4400 | Service Manual - Page 109
CIRCUIT PC702 RL701 FO-4400U FO-CS1 +24 V CIRCUIT F703 4A/125V +24 V SWITCHING CIRCUIT +5 V CIRCUIT F704 4A/125V +5 V CONTROL CIRCUIT GND Fig. 11 1. Noise/Rectification and smoothing circuit Filter part reduces the outgoing noise that generated in the Power Supply unit, and prevents the - Sharp FO 4400 | Service Manual - Page 110
FO-4400U FO-CS1 CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT A B [1] Main Control PWB circuit CPU block ( 7-3B)( 8-4H)(11-5H) R454 0 Vcc-PLL R361 0 CE11 22u/16V VSS-PLL ( 4-2A) /RESET +3.3V IC16A C246 2200p DG +3.3V IC16B 14 14 2 1 4 74LV14A 7 TCS1 R261 10K DG Q111 KRA102S - Sharp FO 4400 | Service Manual - Page 111
FO-4400U FO-CS1 E F G H IC24 MAIN CPU A[25:0] ( 2-1A)( 3-1A)( 4-6A)( 5-4A) 1/12 R303 2 76 R451 33 A25 ( 7-5C)(11-6A)(12-2E) 1.9VD 4.7K XTAL2 3 EXTAL2 109 - Sharp FO 4400 | Service Manual - Page 112
FO-4400U FO-CS1 A B Main ASIC block ( 1-6H)( 3-1A) ( 4-6A)( 5-4A) ( 7-5C)(11-6A) ( 1-5B) ( 1-3H) ( 1-2H)(11-4D) ( 1-5B) ( 1-2H) ( 1-1H) /BS RD/WR CKCSMS /OPDEN /RESET MANRES /WAIT /IRL0 DG /IRL1 /IRL2 /IRL3 /CS0J DG /CS4 /DREQ0 DG /DACK0 /DRAK0 TP17 TP27 R255 N.M. C191 1000p - Sharp FO 4400 | Service Manual - Page 113
FO-4400U FO-CS1 110 ST0 111 ST1 115 OUT 130 TSW 131 LON 140 D15 141 D14 142 D13 143 D12 146 D11 147 D10 148 LD9 - Sharp FO 4400 | Service Manual - Page 114
FO-4400U FO-CS1 A B Sub ASIC block ( 1-3H)( 2-3A)( 4-5D)( 7-3B)(11-3A)(12-3A) (12-1A)(12-5I)(12-5A PCLA5 PCLA4 PCLA3 PCLA2 PCLA1 PCLA0 /NICCS /NICACK /NICCSP C290 DG 1000p RD/WR /SGACS CKSPDR /RESET A[25:0] D[31:0] /IORD /IOWR /NICCSF /NICACKF /SGAINT NICR/W NICRES +3.3V R608 N.M. R59 - Sharp FO 4400 | Service Manual - Page 115
FO-4400U FO-CS1 E F G H 3/12 131 130 129 128 TP105 (PWSAVE) R326 10K DG /PGMWP VPPON CISLEDON ( 4-4A) ( 4-5A) ( 6-2G) 106 R325 10K +3.3V VBAT +3.3V 1 R414 N.M. R413 - Sharp FO 4400 | Service Manual - Page 116
FO-4400U FO-CS1 6 - 7 A B C Memory block ( 1-5H)( 2-2A)( 3-2A)( 5-4A) ( 7-4C)(11-6A)(12-4D 1E) ( 3-1A)( 7-3B) ( 1-1B) /PGMCS /IOWR /IORD /PGMWP /RESET R240 TCS2 R241 0 N.M. 4 C9 1000p/25V 0.1u 10K IC12 FLASH MEMORY A22 9 45 A21 A21 10 DQ15 43 A20 15 A20 DQ14 41 A19 A19 16 - Sharp FO 4400 | Service Manual - Page 117
SR4IN M_RXOUT 79 IRQ 17 NC 20 NC 39 41 NC NC 48 34 NC POR 18 54 RESET NC 55 NC 60 NC 19 44 SR4OUT M_TXSIN 43 M_CLKIN 22 CLK_OUT 85 XTALI 86 52 N.M. CE26 100u/16V R581 10K 2 IC31D MAG DG DG DG DG DG DG 1 1 FO-4400U FO-CS1 6 - 8 A B C D E F G H - Sharp FO 4400 | Service Manual - Page 118
FO-4400U FO-CS1 6 - 9 A B C D E F G H I Driver & Power supply block 6/12 +5V 6 6 +5V C162 IC3 C54 T.B.D. C53 T.B.D. C52 T.B.D. C51 T.B.D. 0.1u DG DIP C126 330p R180 11.0K-F R179 33.0K-F R177 - + IC8B NJM2904M R132 - Sharp FO 4400 | Service Manual - Page 119
FO-4400U FO-CS1 6 - 10 A B C D E F G H LCD controller block 6 ( 1-6H)( 2-1A)( 3-1A)( 4-6A)( 5- 2A)( 4-2A)(11-3A) ( 1-2H)( 2-3A) /CS6 /WE1 /BS RD/WR /RD /WE0 /WAIT 3 CKLCDC ( 1-4C) /RESET ( 1-2B)( 2-3A)( 3-1A)( 4-4A)( 8-4H)(11-5H) R239 74 CS- 78 75 WE1- BS- 79 76 RD/WR- RD - Sharp FO 4400 | Service Manual - Page 120
FO-4400U FO-CS1 6 - 11 A B C D E F G H LCD power control block 8/12 6 6 CNLCD1 5 16 R183 5 D1 4 D2 FPD1 (7-4G) DG Q2 FPD2 DG (7-4G) +LCD5V Q103 R140 C165 + CE8 + CE7 R13 R185 /RESET ( 1-2B)( 2-3A) ( 3-1A)( 4-4A) ( 7-3B)(11-5H) 3 D3 2 VSS 1 VSS FPD3 (7-4G) F102 - Sharp FO 4400 | Service Manual - Page 121
FO-4400U FO-CS1 6 - 12 A B C D E F G 4 GND(DG) 6 GND 5 0.1u 22u/10V (OS-CON) 5 GND(DG) 5 6 6 /RESET /PCURES ( 9-3I) GND 7 8 6 SI 7 C102 CISSI ( 2-1H) GND(DG) 7 15 16 17 18 12 /PRRDY 14 /ETBSY 16 /CMD 18 /PRINT /PRRDY /ETBSY /CMD (9-2F) (9-2F) ( 9-3I) C100 R625 - Sharp FO 4400 | Service Manual - Page 122
FO-4400U FO-CS1 6 - 13 A B C D E F Connector block 2 ( 3-4A) ( 3-3A) 6 NICD[15:0] NICA[16:0] +3.3V ( 3-5F) ( 19 20 21 A7 21 22 23 A8 23 24 25 A9 25 26 16 OEP- 18 CSP1- 20 ACK- 22 RESET- 24 A4 26 D0 TP212 NICA4 NICD0 R321 /NICCS /NICACK ( 3-5A) ( 3-5A) C260 C261 +3.3V ( - Sharp FO 4400 | Service Manual - Page 123
11 12 12 ASEBRKAK /ASEBRKAK ( 1-6B) 5 A15 A17 ( 1-6B) /ASEMD0 13 ASEMD0 13 14 14 RESET /RESET ( 1-2B)( 2-1B)( 3-1A)( 4-4A)( 7-3B)( 8-4H) A19 A21 +3.3V 15 +3.3V 15 16 0.1u 10K MAX3221 DG DG DG DG C1 2 2 DG N.M. FO-4400U FO-CS1 6 - 14 1 1 A B C D E F G H I - Sharp FO 4400 | Service Manual - Page 124
FO-4400U FO-CS1 6 - 15 A B C D E F G H I Connector block 4 12/12 (11-4A) OPD[7:0] +3.3V (12-2A) (12-2I) MDMD[7:0] MDMA[4:0] 6 ( 1-3H)( 2-3A) ( 3-1A)( 4-5D) ( 7-3B)(11-3A) (12-1A)( - Sharp FO 4400 | Service Manual - Page 125
Control PWB parts layout (Top side) FO-4400U FO-CS1 6 - 16 - Sharp FO 4400 | Service Manual - Page 126
FO-4400U FO-CS1 Control PWB parts layout (Bottom side) 6 - 17 - Sharp FO 4400 | Service Manual - Page 127
-SH-124DZ CML1B D1 Q4 C B E KRC106M DG CNLIU-6 +24VA +5V +5VA C17 N.M. DG DG +24VA CNLIU-9 2 R27 +5V C18 10 100u/50V CNLIU-7 CNLIU-8 1SS133 1 1 FO-4400U FO-CS1 6 - 18 A B C D E F G H - Sharp FO 4400 | Service Manual - Page 128
FO-4400U FO-CS1 LIU PWB parts layout (Top side) 6 - 19 - Sharp FO 4400 | Service Manual - Page 129
LIU PWB parts layout (Bottom side) FO-4400U FO-CS1 6 - 20 - Sharp FO 4400 | Service Manual - Page 130
FO-4400U FO-CS1 6 - 21 A B C D E F G H I [3] Printer PWB circuit +5V TP103 (RESET) 1/2 R147 IC4 +5V +5V /PCURES (2-6C) +5V (2-3E) /FUSER_RL /POLYGON_M_LOCK (2-2E) 6 IC1C ULN2003ANS 4.7k R145 4.7k C144 1000p 14 CNTR1_P55 17 P52 27 RESET /UNIT /PS4 /CPRDY /PRINT (2-5C) - Sharp FO 4400 | Service Manual - Page 131
FO-4400U FO-CS1 6 - 22 A B Printer PWBCN1circuit 6 (1-4I) (1-4I) (1-4I) (1-3I) (1- 4 GND(DG) 6 /RESET 8 GND(DG) 10 /HSYNC 12 /PRRDY 14 /ETBSY 16 /CMD 18 /PRINT 20 GND(DG) 22 (1-1I) 7 7 2ND/3RD_SET 2ND/3RD_SET (1-3I) 8 8 UNIT /UNIT (1-5I) 9 9 2ND/3RD_EMP 2ND/3RD_EMP (1-1I) 10 10 - Sharp FO 4400 | Service Manual - Page 132
FO-4400U FO-CS1 Printer PWB parts layout (Top side) 6 - 23 - Sharp FO 4400 | Service Manual - Page 133
Printer PWB parts layout (Bottom side) FO-4400U FO-CS1 6 - 24 - Sharp FO 4400 | Service Manual - Page 134
FO-4400U FO-CS1 6 - 25 A B C D E F G H [4] Power Supply PWB circuit 1/1 6 S3 6 INTERLOCK SWITCH 5 5 4 4 3 3 HEATER ON HEATER-RELAY OFF 2 2 1 1 A B C D E F G H - Sharp FO 4400 | Service Manual - Page 135
Power Supply PWB parts layout FO-4400U FO-CS1 ← The Power supply PWB of this model employs lead-free solder. 6 - 26 - Sharp FO 4400 | Service Manual - Page 136
FO-4400U FO-CS1 6 - 27 A B C D E F G H [5] Operation Panel PWB circuit 1/3 6 6 /SEN0 SPEAKER K0005 2 BROADCAST SW75 K0005 1 2 SW76 1 → K0005 2 SW77 1 STOP K0005 2 ON LINE SW78 M.N. 1 2 3 PAGE parts of this PWB cannot be supplied, change it as a unit. A B C D E F G H - Sharp FO 4400 | Service Manual - Page 137
FO-4400U FO-CS1 6 - 28 A B C D E Operation Panel PWB circuit +5V R16 100K + C10 25 26 LD7 RS 27 28 LD6 RS 27 28 LD6 1 B28B-PHDD DG Note: Since the parts of this PWB cannot be supplied, change it as a unit. A B C D E F G DG +5V TH2 TH1 LED1 LED11 LED2 LED10 LED5 LED9 - Sharp FO 4400 | Service Manual - Page 138
1 LED4 GL3EG44 1 LED5 1 LED6 FO-4400U FO-CS1 6 - 29 A B C D E F G H Operation Panel PWB circuit 3/3 LED PWB + ALARM 2 TONER 2 FAX1 2 FAX2 2 ON LINE 2 DATA 2 HALF TONE 2 STANDARD 2 2 SUPER FINE 2 Note: Since the parts of this PWB cannot be supplied, change it as a unit. D E F G H - Sharp FO 4400 | Service Manual - Page 139
Operation panel PWB parts layout Note: Since the parts of this PWB cannot be supplied, change it as a unit. A FO-4400U FO-CS1 No. DESCRIPTION PARTS CODE A Panel PWB unit DCEKP425CXHP1 B Joint PWB unit DCEKP425CHXL1 C LED PWB unit DCEKP425CXHI1 B C 6 - 30 - Sharp FO 4400 | Service Manual - Page 140
FO-4400U FO-CS1 6 - 31 A B C D [6] 2nd paper cassette PWB circuit (FO-CS1) +5V_3rd +5V 6 CN13 1 2 3 RE-H032TD-1130 4Y 4A 13 7 16 4B 1 7 2ND/3RD_SET VCC A/B 8 15 8 C105 GND G 3 8 UNIT 0.1u HC157 9 9 2ND/3RD_EMP 10 10 N.C. 11 DG 11 2ND/3RD 12 12 M3_ON 13 13 - Sharp FO 4400 | Service Manual - Page 141
A B C D E F G H I 2nd paper cassette PWB circuit (FO-CS1) 2/2 6 6 5 CN 7 + C4 4.7u/50V DG F101 ICP-S1.0 D2 1SR139 1 +24V 2 /FEED3 CN 2 1 2 B2B-PH-S 5 CN12 CN 4 1 /3rd_CASSETTE 1 2 DG 2 B2B-PH-R 1 N.C. 1 2 N.C. 2 3 DG 3 4 N.C. 4 DG 5 LTR_LGL 5 - Sharp FO 4400 | Service Manual - Page 142
FO-4400U FO-CS1 2nd paper cassette PWB parts layout (Top side) (FO-CS1) 2nd paper cassette PWB parts layout (Bottom side) (FO-CS1) 6 - 33 - Sharp FO 4400 | Service Manual - Page 143
M E M O FO-4400U FO-CS1 6 - 34 - Sharp FO 4400 | Service Manual - Page 144
FO-4400U FO-CS1 CHAPTER 7. OPERATION FLOWCHART [1] G3 Protocol Receive side G3 communication To recording position CED NSF CSI DIS TSI (DCS) NSS TCF CFR Transmitter side (Document inserted into document sensor during stand by) CED NSF CSI DIS TSI NSS (DCS) TCF CFR 1st page Document inserted to - Sharp FO 4400 | Service Manual - Page 145
[2] Super G3 Protocol Receive Side ANSam JM CM CJ Phase2 Phase2 Phase3 Phase4 Phase4 NSF CSI FLAG DIS TSI FLAG NSS(DCS) CFR FLAG FLAG IMAGE FLAG FLAG PPS-MPS MCF FLAG FLAG IMAGE FLAG FLAG PPS-EOP MCF FLAG FLAG DCN FO-4400U FO-CS1 Transmitter Side ANSam CM CJ JM Phase2 - Sharp FO 4400 | Service Manual - Page 146
FO-4400U FO-CS1 [3] Power On Sequence START CPU initialized Dual Port RAM check Power on memory clear? NO ROM check No YES Entry data clear Image data clear "MEMORY CLEAR" display YES YES "1" Key NO "2" Key NO "COPY" Key NO "3" Key YES NO YES PROCESS CHECK Option board error check OK - Sharp FO 4400 | Service Manual - Page 147
[1] Service Tools 1.CONNECTION A 11 PRINTER EXTENSION PWB 2 1 CNPRT2B CNPRT2A POWER SUPPLY CABLE CN1 PRINTER PWB 8 TX MOTOR CABLE LIU CABLE 9 FO-4400U FO-CS1 STAMP CABLE PANEL CIS CABLE CABLE SENSOR CABLE CNPN1A CNPN1B SPEAKER CABLE 12 PANEL EXTENSION PWB 1 C OPTION MEMORY PWB (FO-8MK - Sharp FO 4400 | Service Manual - Page 148
to update is copied to a suitable directory. (The extension of the file for update is "ver".) FO-4400 side: (1) Turn off the power. (2) The door for option board wearing in the back of FO-4400 is opened. (3) The conversion cable of 9pin - 5pin is connected the white connector which has five pins - Sharp FO 4400 | Service Manual - Page 149
RS232C Cable(9PIN) Straight connect PC FO-4400U FO-CS1 RS Cable Jig QCNWG365BXHZZ (3PIN) Screw CNRS1(5PIN) ROM Cover Control PWB PART CORD QCNWG365BXHZZ Fig. 5 Connected cable PRICE RANK NAME BH RS cable JIG (3PIN) REMARKS Connects RS-232C cable and CNRS1(Control PWB) 8 - 3 - Sharp FO 4400 | Service Manual - Page 150
FO-CS1 3. Operating Procedure FO-4400 (1) Turn on the power, pushing "START"+"STOP". MEMORY CLEAR 1=ALL, 2=IMAGE, 3=NO (2) Push "MENU". Flash Loader The size of a firmware file is 2.5MB. Transmission takes about 4 minutes and 30 seconds. (6) After transmission is completed, write in a flash memory - Sharp FO 4400 | Service Manual - Page 151
guide upper unit 17 Printer PWB unit 6 Scanner frame unit 18 Power supply PWB unit 7 Frames 19 Operation panel PWB unit 8 Paper transport section 20 Joint PWB unit 9 Fusing unit 21 LED PWB unit 10 Drive/Transfer section 22 High voltage PWB unit 11 Packing material & Accessories (FO-4400 - Sharp FO 4400 | Service Manual - Page 152
FO-4400U FO-CS1 [1] Exterior etc.(1) *a: FLOIL PARTS CODE UKOG-0238FCZZ PRICE RANK BB 46 47 B6 B7 B7 B7 B7 48 B7 Upper cover unit B3 30 B6 Operation panel unit B2 B2 B2 B2 B4 *a 7 46 *a *a 2 B3 18 B2 16 LCD panel unit 10 23 B5 B2 B5 a B7 Printer unit B3 B7 42 B1 B2 a 39 B2 42 - Sharp FO 4400 | Service Manual - Page 153
PARTS CODE Speaker ass'y D Left upper cabinet C Idler gear(32Z) C Left cabinet roller C Paper out sensor D Supply guide label 1 D Supply guide label 2 C CIS cable C Power supply PWB plate C Mechanism connect power supply cable C Power supply cable E Power supply PWB unit C Joint connector C Paper - Sharp FO 4400 | Service Manual - Page 154
PARTS CODE UKOG-0238FCZZ PRICE RANK BB 19 2 24 10 25 1 18 1 *a 21 6 22 10 13 7 *a 14 14 14 *a B3 9 *a B3 23 B3 11 B3 9 B3 12 16 28 B2 15 5 B2 LCD panel unit 2 Operation panel unit B1 Document guide upper unit B1 B1 B1 1 B1 B1 B1 B1 B1 *a - 3 - Scanner frame unit - Sharp FO 4400 | Service Manual - Page 155
NO. PARTS CODE [2] Exterior etc Drum cartridge detect lever C Shutter lever C Hopper spring C Drum cartridge press spring C Guide press spring C Upper cover lock spring C Upper cover gear plate spring C Drum cartridge BH N AE AA E Drive unit B Core(TRA31) C Screw(3x10) FO-4400U FO-CS1 - 4 - - Sharp FO 4400 | Service Manual - Page 156
FO-4400U FO-CS1 [4] Operation panel unit 29 902 31 3 6 32 5 B1 B1 2 30 1 4 B4 28 901 15 18 11 23 23 19 12 21 10 16 27 26 24 26 22 9 B3 17 14 13 87 [5] Document guide upper unit B1 11 22 21 14 20 15 5 1 B2 20 B2 B2 B2 B2 2 8 12 9 13 8 3 8 13 - Sharp FO 4400 | Service Manual - Page 157
NO. PARTS CODE [4] Operation panel unit 1 GCABA2406XHBA 2 GCABB2408XHSA 3 PCUSS2184XHZZ 4 QCNWN294BXHZZ 5 QCNWN295BXHZZ 6 VVLLMG2025TPR 7 DCEKP425CXHP1 8 QSW-K0005AWZZ 1 9 QSW-Z2326SCZZ 10 GCASP2163XHSA 11 JBTN-2368XHSA 12 JBTN-2369XHSA 13 JBTN-2370XHSA 14 JBTN-2371XHSA - Sharp FO 4400 | Service Manual - Page 158
FO-4400U FO-CS1 [6] Scanner frame unit *a: FLOIL PARTS CODE UKOG-0238FCZZ PRICE RANK BB 5 B1 B1 B1 17 *a 2 33 28 12 32 12 5 B1 34 (FO-45VS) *a B2 14 18 35 8 B1 22 2 *a 21 24 *a 17 *a 20 *a 23 11 10 16 E1 1 15 B2 11 *a 18 6 *a *a 6 13 29 B1 7 19 9 *a 30 - Sharp FO 4400 | Service Manual - Page 159
roller 1 C Scanner drive roller 2 C Scanner feed shaft 1 C Scanner feed shaft 2 C Paper earth brush C Anti curl piece C Sensor/stamp cable C CIS cable B Transfer sensor C Front sensor B Document sensor B Core E CIS unit E Verification stamp(FO-45VS) C Stamp only(20 pieces) C Document guide under - Sharp FO 4400 | Service Manual - Page 160
FO-4400U FO-CS1 [8] Paper transport section 28 7 1 3 29 2 4 6 5 8 29 9 10 B1 B1 23 PWB-G PE1 21 22 20 24 26 25 26 11 SL1 14 14 12 13 B1 18 19 13 17 15 27 16 A [9] Fusing unit *c: GREASE PARTS PRICE 2 CODE RANK UKOG-0235FCZZ BC B3 B3 4 B3 PS3 3 21 10 5 1 15 *c - Sharp FO 4400 | Service Manual - Page 161
NO. PARTS CODE [8] Paper transport section 1 0KW4127301902 2 0KW4127302601 Toner empty PWB unit C Roller C Cam C Gear(14T) C Gear(32T) C Wire harness ass'y B Paper take up solenoid C Guide C Pressure spring C Stopper C Friction sheet C Guide C Guide C Tension spring C Lever C Separator pad B Paper - Sharp FO 4400 | Service Manual - Page 162
FO-4400U FO-CS1 [10] Drive/Transfer unit 4 3 23 22 24 2 S2 19 10 B1 17 18 M1 B1 1 26 B2 25 28 27 PS1 29 30 42 B2 7 5 20 21 6 31 7 36 37 38 33 36 11 12 13 14 15 16 32 35 8 9 33 34 NO. PARTS CODE [10] Drive/Transfer unit 1 0KW4127201302 2 0KW4109630501 3 - Sharp FO 4400 | Service Manual - Page 163
TAPE(180mm) 2 3 SHARP 1 8 KRAFT TAPE 7 KRAFT TAPE 9 6 Fold Gear side 16 11 FSOH-A44R0P0 FSOH-A44R0P0 FO-4400U FO-CS1 15 13 12 FRONT 10 14 The Gear part must be adjust to add's hole. NO. PARTS CODE PRICE NEW RANK MARK [11] Packing material & Accessories(FO-4400) 1 TINSE4294XHTZ - Sharp FO 4400 | Service Manual - Page 164
FO-4400U FO-CS1 [12] 2nd paper cassette(1)(FO-CS1) 901 5 7 25 8 16 19 B2 16 4 B2 4 20 B2 20 20 14 B2 23 3 6 17 B2 B1 21 18 10 26 B3 28 1 B2 B2 24 27 15 12 9 9 28 B3 11 22 13 2 B2 - 13 - - Sharp FO 4400 | Service Manual - Page 165
back guide sponge Cassette width sponge,front Lock down piece 1 Lock down piece 2 Separate nail,front Separate nail,rear Cassette paper setting label Cassette paper setting label 2 Paper limit label 2 Slide roller Screw(3x8) Screw(3x10) Cassette special screw Cassette unit DESCRIPTION FO-4400U FO - Sharp FO 4400 | Service Manual - Page 166
FO-4400U FO-CS1 [13] 2nd paper cassette(2)(FO-CS1) B3 18 18 43 3 27 9 6 18 16 29 42 11 16 4 34 8 11 33 7 7 2 B3 B3 40 10 15 38 25 B1 37 21 - Sharp FO 4400 | Service Manual - Page 167
NO. PARTS CODE PRICE NEW RANK MARK [13] 2nd paper cassette(2)(FO-CS1 unit PU roller unit 2nd option cassette PWB unit Drive bearing Drive roller bearing Lock nail holder Roller pin Bottom plate Front support bracket Sensor guide plate Lock release plate Cassette nail,right Cassette nail,left Paper - Sharp FO 4400 | Service Manual - Page 168
FO-CS1 FO-CS1 FSOH-ACRSP1 NO. PARTS CODE PRICE NEW PART RANK MARK RANK [14] Packing material & Accessories,2nd paper cassette(FO N AQ N AM N AA AA D Operation manual D Protection sleeve D Plate protection C Cable holder C Band(100mm) B Core D Paper size labels C 2nd cassette cable(15pin) - Sharp FO 4400 | Service Manual - Page 169
NO. PARTS CODE [15] Control PWB unit 1 UBATL2071XHZZ 2 RR-TZ3016SCZZ 3 RR-TZ3016SCZZ 4 RR-TZ3016SCZZ 5 C Capacitor(10WV 1µF) C Capacitor(10WV 1µF) C Capacitor(25WV 0.1µF) C Capacitor(25WV 0.1µF) - 18 - DESCRIPTION FO-4400U FO-CS1 [BAT1] [BR14] [BR15] [BR18] [BR19] [BR22] [BR23] [BR24] [BR25] [ - Sharp FO 4400 | Service Manual - Page 170
FO-4400U FO-CS1 NO. PARTS CODE [15] Control PWB unit 81 VCKYCY1EF104Z 82 VCKYCY1EF104Z 83 VCKYCY1EF104Z 84 VCKYCY1EF104Z 156 VCKYCY1EF104Z 157 VCKYCY1EF104Z 158 VCKYCY1EF104Z 159 VCKYCY1EF104Z 160 VCKYCY1EF104Z PRICE NEW PART RANK MARK RANK AA C Capacitor(25WV 0.1µF) AA C Capacitor(25WV - Sharp FO 4400 | Service Manual - Page 171
NO. PARTS CODE [15] Control PWB unit 161 VCKYCY1HB222K 162 VCKYCY1HB222K 163 B Diode(DA204K) B Diode(1SS355) B Diode(DA204K) B Diode(HRW0202B) B Diode(1SS355) B Diode(1SS355) - 20 - DESCRIPTION FO-4400U FO-CS1 [C360] [C361] [C362] [C363] [C364] [C365] [C366] [C368] [C369] [C372] [C375] [C376] - Sharp FO 4400 | Service Manual - Page 172
FO-4400U FO-CS1 NO. PARTS CODE [15] Control PWB unit 1 241 VHVICPS05//-1 1 242 VHVICPS10//-1 243 VRS- CZ1JB000J 316 VRS-CZ1JB000J 317 VRS-CZ1JB101J 318 VRS-CY1JB000J 319 VRS-CY1JB000J 320 VRS-CY1JB000J PRICE NEW PART RANK MARK RANK DESCRIPTION AA AG AA AA AG AG AE AX N AG N AY BG N - Sharp FO 4400 | Service Manual - Page 173
NO. PARTS CODE [15] Control PWB unit 321 VRS-CY1JB000J 322 VRS-CY1JB000J 323 16W 3.3KΩ ±5%) C Resistor(1/16W 3.3KΩ ±5%) C Resistor(1/16W 3.3KΩ ±5%) C Resistor(1/16W 3.3KΩ ±5%) - 22 - DESCRIPTION FO-4400U FO-CS1 [R103] [R104] [R105] [R106] [R107] [R108] [R109] [R110] [R111] [R112] [R115] [R116] [ - Sharp FO 4400 | Service Manual - Page 174
FO-4400U FO-CS1 NO. PARTS CODE [15] Control PWB unit 401 VRS-CY1JB332J 402 VRS-CY1JB330J 403 -CY1JB562J 476 VRS-CY1JB472J 477 VRS-CY1JB472J 478 VRS-CY1JB101J 479 VRS-CY1JB000J 480 VRS-CY1JB330J PRICE NEW PART RANK MARK RANK AA C Resistor(1/16W 3.3KΩ ±5%) AA C Resistor(1/16W 33Ω ±5%) AA C - Sharp FO 4400 | Service Manual - Page 175
NO. PARTS CODE [15] Control PWB unit 481 VRS-CY1JB330J 482 VRS-CY1JB330J ±5%) AA C Resistor(1/16W 470Ω ±5%) AA C Resistor(1/16W 20KΩ ±5%) AA C Resistor(1/16W 33KΩ ±5%) - 24 - DESCRIPTION FO-4400U FO-CS1 [R339] [R340] [R341] [R342] [R343] [R344] [R345] [R346] [R347] [R348] [R349] [R351] - Sharp FO 4400 | Service Manual - Page 176
FO-4400U FO-CS1 NO. PARTS CODE [15] Control PWB unit 561 VRS-CY1JB102J 562 VRS-CY1JB102J 563 VRS- VRS-CY1JB000J 636 VRS-CY1JB2R0J 637 VRS-CY1JB000J 638 RCRSP2192XHZZ 639 RCRSP2195XHZZ 640 RCRSP0074AFZZ PRICE NEW PART RANK MARK RANK DESCRIPTION AA AA AA AA AA AA AA AA AA AA AA AA - Sharp FO 4400 | Service Manual - Page 177
Unit) 901 DCEKL422CXH01 [17] Printer PWB unit 1 VCEAGA1CW227M 2 VCKYCY1HB102K 3 VCKYCY1HB102K 4 VCKYCY1HB102K 5 VCKYCY1EF104Z 6 VCKYCY1EF104Z 7 VCKYCY1HB102K PRICE NEW PART AA C Capacitor(25WV 0.1µF) AA C Capacitor(50WV 1000PF) - 26 - FO-4400U FO-CS1 [X5] [ZD1] [AR1] [AR2] [AR3] [ARG] [C1 - Sharp FO 4400 | Service Manual - Page 178
FO-4400U FO-CS1 NO. PARTS CODE [17] Printer PWB unit 8 VCKYCY1HB102K 9 VCKYCY1HB103K 10 VCKYCY1HB102K 11 VCKYCY1EB683K 12 83 VRS-CY1JB101J 84 VRS-CY1JB103J 85 VRS-CY1JB103J 86 VRS-CY1JB330J 87 VRS-CY1JB472J PRICE NEW PART RANK MARK RANK AA AA AA AD N AA AA AA AA AA AA AA AA - Sharp FO 4400 | Service Manual - Page 179
PARTS CODE [17] Printer PWB unit 116 RCRSP2197XHZZ (Unit) 901 DCEKC424CXH01 [18] Power supply PWB unit 1 0AV1480000087 B Diode(1SS270ATD) B Diode(1SS270ATD) B Zener diode(RD33ESAB4) B Diode(1SS270ATD) - 28 - DESCRIPTION FO-4400U FO-CS1 [R127] [R128] [R129] [R130] [R131] [R133] [R134] [R135] [R136] - Sharp FO 4400 | Service Manual - Page 180
FO-4400U FO-CS1 NO. PARTS CODE [18] Power supply PWB unit 48 0AV3050086000 49 0AV3050086000 0AV2012713010 122 0AV2014733010 123 0AV2011033010 124 0AV2016823010 125 0AV5110012000 126 0AV5110006000 127 0AV5110004000 PRICE NEW PART RANK MARK RANK DESCRIPTION AB AB AC N AF N AE N AF AF - Sharp FO 4400 | Service Manual - Page 181
NO. PARTS CODE [18] Power supply PWB unit PRICE NEW RANK MARK 128 0AV5110011000 129 0AV5110012000 130 3x6) Screw(3x8) Power supply PWB unit Tact switch Paper guide switch Operation panel PWB unit Joint PWB unit LED PWB unit High voltage PWB unit Toner empty PWB unit Capacitor(25WV 10µF) Capacitor - Sharp FO 4400 | Service Manual - Page 182
FO-4400U FO-CS1 NO. PARTS CODE PRICE NEW PART RANK MARK RANK [24] 2nd paper cassette PWB unit(FO-CS1) 21 QCNCM2401SC0B 22 QCNCM2661XH0C 23 QCNCM2660XHZZ 24 VHD1SR139-400 25 VHD1SR139-400 26 VHDDSS133//-1 27 VHDSR104///-1 28 VHDSR104///-1 29 VHDSR104///-1 30 VHDSR104///-1 31 VHVICPS18//-1 - Sharp FO 4400 | Service Manual - Page 183
AC C AD C AF C AF C AF C AH N C AE C AD C AH C AD C AD C - 32 - FO-4400U FO-CS1 PARTS CODE NGERH2322XHZZ NGERH2462XHZZ NGERH2463XHZZ NGERH2466XHZZ ″ NGERH2469XHZZ NGERH2472XHZZ NGERH2602XHZZ NGERH2603XHZZ NGERH2605XHZZ NGERP2318XHZZ NROLP2332XHZZ NROLP2334XHZA ″ NROLP2420XHZZ - Sharp FO 4400 | Service Manual - Page 184
FO-4400U FO-CS1 PARTS CODE PTME-2074XHZZ PTME-2075XHZZ PTME-2076XHZZ AD B AE C AQ N C AN N C AE B AL N C AL N C PARTS CODE QTANZ2042SCZZ [R] RC-EZ3088XHZZ RC-EZ3097XHZZ RC-FZ3024SCZZ RC-FZ3039XHZZ RCILZ2118SCZZ RCORF2124XHZZ ″ ″ RCORF2125XHZZ RCRSC2196XHZZ RCRSP0074AFZZ RCRSP2192XHZZ - Sharp FO 4400 | Service Manual - Page 185
FO-4400U FO-CS1 PARTS CODE VCEAGA1HW475M VCKYCY1AF105Z VCKYCY1CB104K AA C AA C AA C AA C AA C AA C AA C AA C AA C AA C AA C PARTS CODE VCKYCY1EF104Z VCKYCY1HB102K VCKYCY1HB103K VCKYCY1HB222K No. 15-130 15-133 15-139 15-140 15-141 15-142 15-143 15-144 15 - Sharp FO 4400 | Service Manual - Page 186
FO-4400U FO-CS1 PARTS CODE VHIPST596CMT1 VHISM8578BV-1 VHIULN2003ADR VHIUPC2933T-1 VHI74LV245APW VHI74VHC02F-1 VHPPC814X//-1 VHPPC817X4/-1 VHPSG206S//-1 VHVICPS05//-1 VHVICPS10//-1 VHVICPS18//-1 ″ VHVRA391PV6-1 VHVRA501PC6-1 ″ VRD-HT2EY100J ″ ″ ″ VRD-HT2EY103J ″ VRD-HT2EY183J VRD-HT2EY201J VRD- - Sharp FO 4400 | Service Manual - Page 187
FO-4400U FO-CS1 PARTS CODE VRS-CY1JB104J VRS-CY1JB105J ″ ″ VRS-CY1JB113F ″ AA C AA C AA C AA C AA C AA C AA C AA C AA C AA C AA C PARTS CODE VRS-CY1JB330J VRS-CY1JB332J VRS-CY1JB333F VRS-CY1JB333J ″ VRS-CY1JB361J ″ VRS-CY1JB471J ″ ″ ″ VRS-CY1JB472F VRS-CY1JB472J No. - Sharp FO 4400 | Service Manual - Page 188
FO-4400U FO-CS1 PARTS CODE VS2SD592A-S-1 VS2SJ243///-1 VVLLMG2025TPR [X] XEBSD20P08000 XEBSD30P10000 XEBSE26P08000 XEBSE30P10000 ″ ″ XHBSD30P06000 ″ ″ XHBSD30P10000 XHBSE30P06000 XHBSE30P10000 XHBSE30P12000 XRESJ50-06000 [0] 0AV1390000181 0AV1390000189 0AV1390000202 0AV1390000203 0AV1480000087 ″ - Sharp FO 4400 | Service Manual - Page 189
FO-4400U FO-CS1 PARTS CODE 0KW4127304102 0KW4127304203 0KW4127304801 0KW4127307101 0KW4127307201 0KW4127317401 0KW4127317501 0KW4127350116 0KW4127410302 0KW4127410401 0KW4127410501 0KW4127410601 0KW4127410701 0KW4127410801 0KW4127411101 0KW4127411301 0KW4127413102 0KW4127413201 0KW4127413302 - Sharp FO 4400 | Service Manual - Page 190
FO-4400U FO-CS1 COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in of the publisher. SHARP CORPORATION Communication Systems Group Quality & Reliability Control Center Higashihiroshima, Hiroshima 739-0192, Japan Printed in U.S.A. A0211-
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FO-4400U
FO-CS1
No. 00ZFO4400USME
Parts marked with "
" is 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
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
SERVICE MANUAL
Laser Wave Length
: 770-795 nm
Laser Pulse Times
: 51.3 ns
Laser Output Power : 5 mW
CAUTION
This laser printer is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH or IEC60825-1 standard. This
means that this machine does not produce a hazardous laser radiation. The use of controls, adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved on the eyes retina, there is
danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.
1)
When a problem in the laser optical unit has occurred, the whole optical unit must be exchanged as a unit, not an individual part.
2)
Do not look into the machine with the main switch turned on after removing the toner/developer unit and drum cartridge.
3)
Do not look into the laser beam exposure slit of the laser optical unit with the connector connected when removing and installing the
optical system.
4)
The cover of Laser Printer Unit contains the safety interlock switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
Illustration: FO-4400
FACSIMILE
FO-4400
MODEL
OPTION:PAPER CASSETTE
FO-CS1
MODEL
MODEL
SELECTION CODE
DESTINATION
FO-4400
U
U.S.A./Canada
Illustration: FO-CS1
OPTION
Toner cartridge:
FO-50ND
Drum cartridge:
FO-47DR
Option memory:
FO-8MK
Verification stamp:
FO-45VS
Paper cassette:
FO-CS1