Page 1 FO-3800M CODE: 00ZFO380USF1E DIGITAL LASER MULTIFUNCTION FO-3800M MODEL CONTENTS [ 1 ] SYSTEM CONFIGURATION ......1-1 [ 2 ] SPECIFICATIONS .
Page 2 FO-3800M At the production line, the output power of the scanner unit is adjusted to 0.33 M ILL I-WAT T P L US 2 0 P C TS an d is maintained constant by the operation of the Automatic Power Control (APC).
Page 3: Table Of Contents
FO-3800M Contents [1] SYSTEM CONFIGURATION ..............1-1 1.
Page 4: System Configuration
FO-3800M B. Supplies [1] SYSTEM CONFIGURATION (1) Appearance 1. LINEUP A. Main Unit (1) Appearance TD cartridge Drum cartridge (2) Supplies List Items Model/Parts code Drum cartridge FO-29DR TD cartridge FO-29ND C. Accessories Accessories list Model FO-3800M Tray (Universal) Included...
Page 5: Block Diagram
FO-3800M 2. STRUCTURE A. Hardware Block diagram FAX PWB LCD PWB LIU PWB 1-chip Controller LIU control DRAM ASIC FX200 SPF relay PWB Compress CPU/DSP SRAM Speaker control Speaker /Expand FX164 SPF solenoid Driver LC8213 Scanner motor Motor driver DRAM...
Page 6: Basic Specifications
FO-3800M (2) Exposure mode [2] SPECIFICATIONS Exposure mode Steps for exposure Toner save mode Automatic — Available 1. BASIC SPECIFICATIONS Manual 5 steps Available (1) Types Photo 5 steps Model type Desktop type (3) Copy ratio Scanning type SPF/Flat bed/Monochrome type...
Page 7 FO-3800M ∗ Printing h. Skew (Diagonality) Main scanning direction Sub scanning direction Standard Virtual Standard Virtual resolution resolution resolution resolution 600 dpi — 600 dpi — | D1-D2 | 1.7mm Position Copy ratio Center Corner Same size 5.0 line/mm 4.5 line/mm...
Page 8 PC and the set up time of polygon mirror) ∗ 300 dpi selectable b. Print speed b. Gradient Paper size 8 ppm (A4, 8-1/2" × 11", Sharp standard paper) Gradient Binary (Dither pattern method) c. Image treatment Image treatment Dither pattern method d.
Page 9 FO-3800M (Landscape) Physical Page Logical Page Value Paper size LETTER 3300/6600 2550/5100 3200/6400 2456/4904 50/100 50/100 50/100 44/96 LEGAL 4200/8400 2550/5100 4100/8200 2456/4904 50/100 50/100 50/100 44/96 EXECUTIVE 3150/6300 2175/4350 3050/6100 2080/4152 50/100 50/100 50/100 45/98 3507/7015 2480/4960 3407/6815 2384/4760...
Page 10 FO-3800M D. Scanner mode (2) Image quality ∗ Resolution (1) System requirements Main scanning direction 300/400/600 600 dpi (Vertual) a. Operating conditions Sub scanning 300/400/600 — Host Operating Software/ Plug and Network ∗ computer system Driver play Scanning mode IBM PC/AT Windows 3.1x...
Page 11 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Half tone Equivalent to 256 scales Half tone (photo mode) 8 dot /mm × 7.7 line / mm (Fixed) reproduction Resolution Contrast Contrast selection Manual in 3 stages (AE) adjustment Image 8 dot / mm ×...
Page 12 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Memory Transmission Number of transmission Reservations Max. 20 that can be made Processing Transmission is cancelled when using Timer, Group when memory or Broadcast function. Only scanned’ data is is full transmitted.
Page 13 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Consecutive Book Book document page document transmission transmission transmission (page splitting) OK stamp OK stamp Remote transmission Remote YES (From Memory) (Memory Polling) Transmission Check by other Party’s number Trans-...
Page 14 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Transfer at occurrence of Transfer trouble Receiving of only specified Number specified number enabled receiving Anti junk fax mode YES (ON/OFF) 10 group, 20 letters Sender Mailbox Confidential Confidential receiving...
Page 15 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Registration Rapid keys keys Max. number of registered 50 other parties other parties per group Registrable Numbers registered to speed dialing and rapid key Group dialing Number dialing. Registered 20 letters (may be omitted)
Page 16 FO-3800M Large Item Middle Item Small Item Sub Item Spec. External telephone Telephone Remote receiving switching YES (switching number in 1 digit +**) 0 to 9 connection Function Automatic System telephone/fax Audio response switching Response voice recording Standard 2MB (Approx. 120 pages/A4)
Page 17 FO-3800M Large Item Middle Item Small Item Sub Item Spec. Communication result YES (ALWAYS PRINT, ERROR/ TIMER, SEND table (transmission) ONLY, NEVER PRINT, ERROR ONLY) Broadcast transmission YES (ALWAYS PRINT, ERROR ONLY, NEVER report PRINT) Communication Communication result result report...
Page 18: Engine Specification
FO-3800M 4. ENGINE SPECIFICATION A. Operation/display section Display type LED display/LCD display (FAX section) Operation type Button/switch B. Paper feed/transfer/finishing (1) Details of paper feed section AB system Paper size Capacity Paper weight Special paper Notes A4, B5, A5, B6, A6 250 sheets 56–80g/m...
Page 19 FO-3800M (8) Scanning sensor (2) Lamp Main unit Power Type Reduction optical image sensor (CCD) Type Voltage power supply consumption Monochrome Fluorescent 100/120/230 V 100/120/230 V 500 W lamp D. Scanner (Exposure) section (3) Fusing temperature (1) Type Print mode (after...
Page 20 FO-3800M M. Operating voltage/power consumption (3) Storage conditions (packed in the packing material) Machine Power consumption Humidity Power Power Sub- supply Power Average Ready shut- sidiaries voltage/ save (during Max. mode down frequency 40˚C, 90% mode printing) mode 120V —...
Page 21: Consumable Parts
FO-3800M [3] CONSUMABLE PARTS 1. Configuration 2. Developer cartridge 1. Photoconductor cartridge Part name (Item) Photoconductor cartridge Developer cartridge 2. List A. Consumable parts for exclusive use (Single form) (Compound form) Part name (Item) Note Content Model name Parts item Q’ty...
Page 22 FO-3800M Item Specifications/Descriptions Life Print quantity Effective use period 36 months from production when sealed, or 20 months when unsealed. (Shorter one, max. 36 months) Weight/Capacity/ Weight Single unit Weight (g/kg) 241 g Weight (lbs) Quantity Compound form Wright (g/kg)
Page 23: Paper Specifications
FO-3800M Item Specifications/Descriptions Product No. content Production Production Version month place Destination Production Production year form (End digit) 0: October X: November Y: December Guarantee period (Month) Counted from the production month. Stored under the storage environment conditions (sealed). Note * Replace when print density becomes low.
Page 24: Standard Density Sample
FO-3800M 5. Standard density sample The ratio of the image area for the total area of paper is 5%. The life of every consumable part is based on this ratio. Standard density sample 3 – 4...
Page 25: Environmental Conditions
FO-3800M 6. Environmental conditions (1) Transit environment (sealed) Max. change: Temperature 15°C/hour, Relative humidity 15%RH/hour, without dew Humidity 40°C, 90% -10°C 40°C Temperature Temperature Humidity Temperature Humidity Temperature Humidity Period (min) (min) (mid) (mid) (max) (max) –10°C 40°C (2) Storage environment (sealed) Max.
Page 26: Installing Conditions
FO-3800M CAUTIONS ON HANDLING [4] SET UP Be careful in handling the copier as follows to maintain the perfor- mance of this copier. 1. Installing conditions Do not expose the drum cartridge to direct sunlight. Improper installation may damage the copier. Please note the follow- Doing so will damage the surface (green portion) of the drum ing during initial installation and whenever the copier is moved.
Page 27: Parts And Consumable Parts Setup
FO-3800M 2) Remove the protective material (c), and slowly pull the protective Accessories list sheet (d) and protective material (e) together toward you to Model FO-3800M remove. Be careful not to break the protective sheet (d) midway Tray (Universal) Included and not to remain torn part inside the machine.
Page 28 FO-3800M 7) Close the front cover. 6) Remove the black protective sheet from the photoconductor cartridge. CAUTION: If the black protective sheet is pulled forcibly, it may be (2) Photoconductor cartridge broken, Be careful not to break the sheet and slowly remove it.
Page 29: Cable Connection
FO-3800M 3) If extra-long paper (such as legal size) is used, raise the paper 5. Installing the printer and TWAIN support to support the paper. Fan the copy paper and place it into (Scanner) driver software the paper tray with the side to be printed facing toward you. Posi- tion the paper along the right end of the paper tray.
Page 30 R:\SETUP (if the CD-ROM is designated as drive R) and click the OK button. Follow the on-screen instruc- tions. 7) Windows driver file search will find the device "SHARP FO- 3800M". Click the Next button and follow the on-screen instruc- tions.
Page 31: Setup Fax Section
Windows 95/Windows 98/Windows NT 4.0: 1) Click the Start button. 2) Select Settings and then click Printers. 3) Right-click the FO-3800M icon in the printer dialog box and then click Properties. NOTE: For this description, it is assumed that the mouse is con- figured for right hand operation.
Page 32: Note For Transport
FO-3800M • You can connect an extension phone to the machine to make and Factory setting: 2 (OFF) receive calls like any other extension phone on your line. Even if Step Press these keys Comments you pick up the extension phone and hear a fax tone, the machine will automatically cut in and take over the line.
Page 33: External View And Internal Structure
FO-3800M [5] EXTERNAL VIEW AND INTERNAL STRUCTURE 1. List External, operation parts External, operation parts Internal operation parts Operation, display parts Internal parts Parts in each section Operation section Paper feed, transport section Optical section <1> Scanner (reading) section <2>...
Page 34 FO-3800M Parts Model Note Name Function/Operation SPF unit (Document cover) Front cover Opened when installing or removing the OPC cartridge and the developer cartridge or removing a paper jam. Paper exit tray Receives printed paper. Operation panel Allows various setting in the copy mode and test command operations.
Page 35 FO-3800M (3) Operation, display parts a. Main body section 3) 4) 5) Parts Model Note Name Function/Operation Copy image mode select Selects the copy image mode in auto, character, key/Copy image mode photo, toner save mode. Displays the copy image display lamp mode.
Page 36 FO-3800M b. FAX section Left arrow key ( ) and right arrow key ( ) Press these keys to scroll through a menu. During input mode, these keys are also sometimes used to move the cursor. ENTER key FUNCTION key...
Page 37 FO-3800M B. Internal parts (1) Parts in each section a. Operation section Parts Model Note Name Function/Operation Operation control PWB Displays various number information and messages. Outputs the key operation signal. Number display Displays various value information and messages. b. Paper feed, transport section...
Page 38 FO-3800M Parts Note Code Signal name Name Type Function/operation Active condition PE SENSOR PEMP IN Paper empty Photo Detects paper on the paper tray. LOW (0V) when detector transmission paper is detected. sensor Paper guide Adjust the paper width. Paper feed tray Sets the print paper.
Page 39 FO-3800M c. Optical section <1> Scanner (reading) section 4) MHPS 6) CCD SENSOR 8) SL SENSOR 4) MHPS 8) SL SENSOR 6) CCD SENSOR Parts Note Signal Code Name Type Function/operation Active condition name Scanner lamp Drives the scanner lamp. Maintains the control PWB lamp light quantity at a constant level.
Page 40 FO-3800M <2> Scanner (writing) section 1) SYNC Parts Note Code Signal name Name Type Function/operation Active condition SYNC SYNC IN Laser beam sensor Bin diode Detects the laser beam position. LOW (0V) when By this signal the left image print laser beam is start position is controlled.
Page 41 FO-3800M d. Image process section <1> OPC drum section Parts Note Name Type Function/operation OPC drum Forms latent electrostatic images. OPC drum earth electrode Connects the OPC drum aluminum layer and the earth (high voltage PWB). Main charger electrode Connects the main charger output (high voltage PWB) and the main charger brush.
Page 42 FO-3800M <2> Developing section Parts Note Name Type Function/operation Developing roller Attaches toner to the latent electrostatic images on the OPC drum to convert it into a visible image. Developing doctor Controls toner quantity on the developing roller and charges toner.
Page 43 FO-3800M <3> Transfer, separation section Parts Note Name Function/operation Transfer roller Transfers toner images on the OPC drum onto the paper. Transfer roller Connects the transfer roller and the transfer voltage output (high voltage PWB). electrode Pressure spring Applies pressure to the transfer roller, paper, and the OPC drum to improve transfer efficiency.
Page 44 FO-3800M e. Fusing, paper exit section 2) POUT 2) POUT Parts MODEL Note Code Signal name Name Type Function/operation Active condition Heat roller Heats toner on the paper LOW (0V) when and fuses onto the paper. paper is detected. POUT...
Page 45 FO-3800M f. Drive section Parts Note Code Signal name Name Type Function/operation Main motor Stepping motor Drives the paper feed section, the paper (+24V) transport section, the fusing section, and the image process section. Paper feed section drive Transmits the main motor power to the gear paper feed section.
Page 46 FO-3800M h. FAX section External View Parts Model Note Active Code Code name Name Type Function/Operation condition FAX operation panel Performs FAX operations. Document tray Documents are loaded to this tray. Document guide Adjusts the document width. Roller pressure release button...
Page 47 FO-3800M Parts Model Note Active Code Code name Name Type Function/Operation condition SPF transport roller Transports documents. SPF paper feed clutch Spring clutch "Controls ON/OFF of the SPF paper feed roller. Controls power transmission of the SPF motor." SPF paper exit roller Discharges documents.
Page 48 FO-3800M i. Cross sectional view 28) MHPS 30) SL SENSOR 33) CCD SENSOR 24) POUT 9) PE SENSOR 14) PIN SENSOR Parts Model Note Code Signal name Name Type Function/operation Active condition Fusing temperature Thermistor Detects the heat roller surface Analog signal (2.0...
Page 49 FO-3800M Parts Model Note Developing roller Attaches toner to the latent electrostatic images on the OPC drum to convert them into visible images. Transfer roller Transfers toner images on the OPC drum to paper. Transfer pressure Applies a pressure to the transfer...
Page 50 FO-3800M C. Functional parts (1) Sensor, detector 3) PAPER SIZE SW 4) PE SENSOR 2) SL SENSOR 1) MHPS 6) CCD SENSOR 11) DSW 5) SYNC 7) PIN SENSOR 8) TS 10) POUT 9) RTH Parts Note Code Signal name...
Page 51 FO-3800M (2) Switch 2) POWER SW 1) DSW Parts Note Code Signal name Name Type∗ Function/operation Active condition Turns on/off the +24V power line (power Front cover Micro switch Close open/close switch source for the motor, the high voltage PWB, and solenoids) when opening/closing the front cover for safety.
Page 52 FO-3800M (4) Motor a. Drive motor 1) LSM 2) MM 3) IMGSM Parts Note Code Name Type Function/operation Laser scanning motor DC brushless motor Drives the scanning mirror. (+24V) Main motor Stepping motor (+24V) Drives the paper feed section, the paper transport section, and the image process section.
Page 53 FO-3800M (5) PWB Parts MODEL Note Name Function/operation Power PWB Outputs DC power. Drives the heater lamp. The voltage specification differs depending on the destination. Scanner lamp drive Controls light quantity of the scanner lamp. LIU PWB Performs send/receive control of the TEL line.
Page 54 FO-3800M Parts MODEL Note Code Name Form Form Specification Function/operation F603 Power unit fuse Mini Normal 5A 125V Protects the power unit primary side circuit 100V series against an overcurrent. 3.15A 250V 20V series F601 Power unit fuse Mini Normal...
Page 55 FO-3800M Parts Model Note Connector type Function/ Name Type (Type/pin no.) operation Printer IEE1284 parallel Anfenor 36 pin AL-840 Allows connection with two personal interface interface computers. Printer models only. LINE jack Used to connect with the TEL line. TEL jack Used to connect with the external TEL line.
Page 56 FO-3800M (11) Adjustment volume VR801 VR601 VR802 Parts Note Code Name Function/operation Scanner lamp light quantity adjustment Adjusts the scanner lamp light quantity. volume VR601 Output voltage adjustment volume Adjust the DC output voltage (+24V). VR801 Main charger voltage adjustment volume Adjusts the main charger voltage.
Page 57: Machine Operation
FO-3800M [6] MACHINE OPERATION (1) Operation mode This machine has the following operation modes. Mode Content Copy mode During the coy mode, print data is received but not accepted. After completion of copying, print is automatically performed. Print mode Laser image data from the host is printed.
Page 58: Relationship Between The Power Save Mode And The Display And Machine Operations
FO-3800M 3 GREEN TONER DRUM PRE- READY CERTRIDGE CERTRIDGE Copy Machine condition LINE HEAT NOTE LAMP SEGMENT LAMP REPLACE- REPLACE- lamp LAMP LAMP MENT LAMP MENT LAMP Data reception from the host — Interruption copy during ON/OFF BLINK — printing The printer cannot receive —...
Page 59: Selection Between The On Line Mode And The Off Line Mode
FO-3800M 3) Press and hold down the exposure mode selector key for ap- (5) Selection between the ON LINE mode proximately 5 seconds. and the OFF LINE mode The photo ( ) indicator will go out and the AUTO indicator will begin to blink.
Page 60: Operation Mode And Priority
FO-3800M 2) Keep pressing the copy mode select key again for 5 sec, and the (10) Operation mode and priority PHOTO lamp will blinks and the density adjustment lamp of "5" will light up. Priority level Operation mode Level 1...
Page 61: Machine Errors And Operations In Each Operation Mode
FO-3800M External Following job Copy Printer FAX transmission FAX reception Scanner telephone Ready Transmission During state Direct Memory FAX data Memory Current job Copy job Print data output document Direct reception Calling Called scanning/ transmission transmission output reception scanning preview...
Page 62: Pre-Heat Mode, Shut Off Mode Operations
FO-3800M (Note) Error Paper size error Operation mode Memory During FAX data The output is interrupted and the paper Your machine has a memory area that can be used to store both output size error is displayed on the FAX side incoming and outgoing originals.
Page 63: Adjustments, Setting
FO-3800M [7] ADJUSTMENTS, SETTING Preliminary After- Content work work JOB No JOB No ADJ M7 Fusing temperature ADJ 2 Fusing temperature 1. List adjustment adjustment after 20 sheets of Preliminary After- continuous print Content work work ADJ M8 Power voltage...
Page 64 With the above operation, the photoconductor counter is reset. density adjustment ADJ 5 Manual (Toner save) copy mode copy density adjustment (Copy density level) Adjustment Mode display Density SHARP gray chart mode lamp adjustment (UKOG-0062FCZZ) level adjustment level Auto copy Auto copy "3"...
Page 65 FO-3800M ∗ To decrease the copy density, decrease the adjustment value. To Program used increase the copy density, increase the adjustment value. When the Test command (Simulation) MODE Normal exposure level of the center density level is adjusted, the copy density MAIN CODE in the other density level is automatically calculated and adjusted.
Page 66 Parts code/Price rank UKOG-0162FCZZ mode)(PHOTO mode) Print density mode (FAX Gray pattern 0.3 of the FAX Name SHARP original test chart mode)(Fine mode) mode print density adjustment Parts code/Price rank UKOG-0089FCZZ Print density mode (FAX test chart (TPAP-2109SCZZj is...
Page 67 FO-3800M ∗ 2) Manually turn the scanner drive gear to bring the scanner unit B Necessary condition into contact with the stopper, 1) The scanner drive wire tension must be normal. At that time, if the scanner unit B makes contact with both the ∗...
Page 68 FO-3800M ∗ 7) With the scanner unit B in contact with both the stoppers in the Adjustment value rear and the front frames, slide the scanner unit A until it makes contact with the right edge of the frame, and fix the scanner unit A 203mm and the drive wire.
Page 69 FO-3800M 3) Check the sub scanning direction distortion. Copy main scanning direction distortion ADJ 3 If La = Lb, there is no distortion. adjustment ∗ Location ADJM2/ADJ3 If there is any distortion in the sub scanning direction, perform the following procedures.
Page 70 FO-3800M 3) Check the main scanning direction distortion. 7) Check the distortion difference (distortion balance) between the right and the left sides. If the four angles of the copy are right angles, there is no distor- tion. If Lc = Ld, the image distortions of the right and the left sides are equal to each other.
Page 71 FO-3800M ∗ 5) Check the CCD unit No. (OID) specified on the CCD unit. Adjustment value (Test command (set value)) Range (MIN) Hole L=10.5+CCD No(OID) Range (MAX) Standard value Default (Copy resolution, main scanning direction copy magnification ratio) CCD No...
Page 72 FO-3800M 9) Measure the length of the copied scale image and calculate the At that time, the main scanning direction copy magnification ratio may be outside the specified range (100 ± 1.0%). main scanning direction magnification ratio. 3) Change the adjustment value of SIM 48-1 to adjust so that the...
Page 73 FO-3800M ∗ 3) Place the scale on the document table as shown below, and make Note a copy in the text copy mode (100%) (Display) at a proper density. 1) If this adjustment is performed when the main scanning direction copy magnification ratio is not in the specified range (100% ±0.1%) the proper copy magnification ratio cannot be obtained.
Page 74 FO-3800M Adjustment Adjustment mode display Note mode (LIghting) Main scanning Photo copy mode lamp direction image Copy image position Main scanning Auto/Photo/Text copy direction image mode lamp Lldv position (SPF mode) Left void area Auto copy mode lamp Right void area...
Page 75 FO-3800M (The currently set adjustment value is displayed on the copy quan- (the adjustment value is stored and a copy is made.) tity display.) When the set value is increased, the image lead edge position is 3) Set the value to "50" and press the start button.
Page 76 FO-3800M (The currently set adjustment value is displayed on the copy quantity display.) Paper rear edge 13) Press the start button. (Make a copy with the document cover open.) Copy image (A copy is made.) 14) Measure the rear edge void area.
Page 77 FO-3800M −0.5 Void area (left/right) adjustment Standard value: 2.0 ADJ 2 +1.0 ∗ 5) Select the left void area adjustment with the copy picture quality Adjustment value mode select key. (Simulation adjustment value) (The currently set adjustment value is displayed on the copy quan-...
Page 78 FO-3800M Charging (main charger) voltage 4) Measure the charging (main charger) voltage with a digital multi- ADJ 1 meter (effective value meter, input impednce 1000MΩ or above). adjustment Adjust VR801 so that the output voltage is –1050 ∼ –1200 V.
Page 79 FO-3800M Developing bias voltage adjustment ADJ 2 ∗ Adjustment value Range (MIN) –305 V Range (MAX) –315 V Standard value –310 V Default –310 V ∗ Program used Test command (Simulation) MODE Normal MAIN CODE SUB CODE ∗ Execution condition (time)
Page 80 FO-3800M ∗ ∗ Execution condition (time) Troubles caused by improper work 1) Copy (print) defective Enforcement JOB No Content time (Insufficient density, background copy, dirt, etc.) S 009/Ua004 When replacing the high voltage/motor drive PWB unit (Ghost) Cycle — 2) The copy density cannot be adjusted with SIM 46-1.
Page 81 FO-3800M Fusing temperature adjustment after 20 sheets of continuous printing 2) Turn on the power. 3) Put a digital multi-meter between the check point (24V) on the Test command (Simulation) MODE Normal power PWB and GND. MAIN CODE SUB CODE CPWBF7045XC35 ∗...
Page 82 FO-3800M ∗ Necessary condition 1) The scanner section must be clean. ∗ Job content 1) Put an oscilloscope between the check point JP2 (VIN) on the MCU (PCU) PWB and GND. At that time, trigger with the SH (JP3) signal to see the waveform correctly.
Page 83: User Program
FO-3800M ⋅ [8] SIMULATION (Test Command) USER PROGRAM 1. Simulation A. Outline and purpose The simulation function is provided to perform the following items. It is used to grasp the machine operations, trouble positions, early detec- tion of trouble causes and to make various setting and quick servic- ing.
Page 84 FO-3800M START (Normal mode) Press the clear key. Press the picture (exposure) mode select key. Press the clear key. Press the picture (exposure) mode select key. Press the clear key. The machine is ready for the simulation main code input.
Page 85 FO-3800M (2) Simulation list Code Function (Purpose) Purpose Section Item Main Sub Used to check the operations of the scanner (reading) Operation test/check Optical (Image Operation unit and its control circuit. scanning) Used to check the operations of the sensors and...
Page 86 FO-3800M Code Function (Purpose) Purpose Section Item Main Sub Use to clear the FAX transmission/reception counter. Data clear Counter Communication (FAX model only) Used to clear the frequency of use (scanning) of the Data clear Optical (Image Counter scanner (reading).
Page 87 FO-3800M (3) Details of simulations Operation/ When the START button is pressed, the SPF paper Procedure feed solenoid (SPUS) repeats ON (500ms) and OFF (500ms) 20 times. Purpose Operation test/check Function Used to check the operation of the scanner (reading)
Page 88 FO-3800M Purpose Adjustment/Operation test/check Function Used to adjust and check the operation of the (Purpose) developing bias voltage, the main charger voltage, Purpose Operation test/check and the transfer charger voltage, and their control Function Used to check the warm up time and the operation of circuit.
Page 89 FO-3800M Purpose User data output/Check (Display/Print) Purpose Operation data output/Check (Display/Print) Function Used to check the total counter value. Function Used to check the print count number. (Purpose) (Purpose) Item Counter Total Item Counter Printer Operation/ The total print counter value is displayed in 3 digits of...
Page 90 FO-3800M Section ADF/RADF/UDH/SPF Item Specifications Operation/ When this simulation is executed, the code of current Procedure setup of ENABLE/DISABLE of SPF/FAX function is displayed. Purpose Data clear Enter the desired code number corresponding to Enable/Disable Function Used to clear the photoconductor drum counter.
Page 91 FO-3800M Purpose Setting Purpose Adjustment Function Used to set the CE mark conforming operation mode. Function Used to adjust the rear edge void area in the SPF (Purpose) (For prevention against flicker when driving the fusing (Purpose) copy mode. (AL/FO Series only)
Page 92 FO-3800M Operation/ By adjusting the exposure level of the center density, Procedure the other copy density levels (density levels 1, 2, 4, 5) can be automatically calculated and adjusted. The gamma curve (gradient) is fixed and cannot be changed. By...
Page 93 FO-3800M Purpose Adjustment Function Used to adjust the print density in the FAX normal (Purpose) mode. (Used wen adjusting the print density in all the Purpose Adjustment FAX mode collectively.) Function Used to adjust the coy magnification ratio (in the...
Page 94 FO-3800M 7) Select the adjustment mode rear edge void area with the copy Adjustment Adjustment quality mode select key. mode Note item (The currently set adjustment mode is displayed on the copy display (ON) quantity display.) Image lead Auto copy Used to determine the relative 8) Change the set value and press the start button.
Page 95 FO-3800M Purpose Adjustment Purpose Operation test/check Function Used to adjust the CCD sensitivity when scanning Function Used to check the operation (self print operation) of (Purpose) images in the SPF mode. (Purpose) the printer section. Section ADF/RADF/UDH/SPF Section Printer Item...
Page 96: User Program
FO-3800M 2) Set the user program number with the value set key (digit of 10). 2. User program (The user program number is displayed on the copy quantity dis- play.) A. Outline 3) Press the start key. The user program is used to realize the machine conditions according (The machine enters the program mode set in procedure 2).)
Page 97: Printing Out Reports
FO-3800M (5) OPTIONAL SETTING LIST: 3. Printing Out Reports Currently activated optional settings. Use the following procedure to print out reports: OPTIONAL SETTING LIST P. 01 Step Press these keys Comments JUL-21-1999 WED 05:23 PM FUNCTION “LISTING MODE” will appear in the...
Page 98: Fax Simulations
FO-3800M 4. FAX simulations A. Entering the FAX simulation mode There are following two ways of entering the Fax simulation mode. They differ only in the key sequence and the operations of the simulation are the same in either mode.
Page 99 FO-3800M Mode LCD display Mode Details of functions (Mode name) Image memory This mode is used to clear the image data memory (DRAM). 10:IMAGE MEM CLEAR clear mode (Only the image data is cleared.) Dial test / This mode is used to dial in dial pulse (10PPS) and to set the pulse make ratio...
Page 100 FO-3800M (3) ROM & RAM check mode Procedure Operation Press FUNCTION, 9, ∗, 8, #, 7. DIAGNOSTIC MODE ROM VERSION = <version> Press ENTER. DIAGNOSTIC MODE SELECT MENU(← →) Press 0, 3. 03:ROM/RAM CHECK (Normal case) ROM/RAM OK (RAM error)
Page 101 FO-3800M Procedure Operation 7:TONE SELECT FREQUENCY Press ← or → to select the target frequency. <signal freq.> For <signal freq.>, refer to TABLE-4. PRESS ENTER KEY When the target frequency is displayed, press <signal freq.> The selected signal is sent.
Page 102 FO-3800M (6) Dial test / adjustment mode (Pulse 10PPS) Procedure Operation Press FUNCTION, 9, ∗, 8, #, 7. DIAGNOSTIC MODE ROM VERSION = <version> Press ENTER. DIAGNOSTIC MODE SELECT MENU(← →) Press 1, 4. 14:DIAL TEST 10 PPS The current make ratio setup is displayed on ##.
Page 103: Software Switch For Fax
FO-3800M (11) Long distance comm select mode Procedure Operation Press FUNCTION, 9, ∗, 8, #, 7. DIAGNOSTIC MODE ROM VERSION = <version> Press ENTER. DIAGNOSTIC MODE SELECT MENU(← →) Press 4, 4. 44:LONG DIST COMM To terminate this mode, press STOP.
Page 104 FO-3800M ITEM Soft SW setting and function Factory Setting Silent detection threshold value Used to set the threshold value of silent detection in the answering and recording mode. Threshold = 8 × Bit1 + 4 × Bit2 + 2 × Bit3 + 1 × Bit4...
Page 105 FO-3800M ITEM Soft SW setting and function Factory Setting Signal send level This mode is used to set the FAX signal send level. The effective set range is –1 dBm to –16 dBm. The values are mere estimation figures because they are affected by DAA.
Page 106 FO-3800M ITEM Soft SW setting and function Factory Setting Non-modulation carrier send in V.29 Non-modulation carriers are not required for V.29 Modem transmission in ITU-TS standards. However, non-modulation carriers can be sent in advance to image signals. This function is effective to avoid communication troubles due to echoes in oversea communication.
Page 107 FO-3800M ITEM Soft SW setting and function Factory Setting Header Used to set the header attachment to the transmitting document. 1 : Not attached 0 : Attached Header in data transfer Used to set the header attachment to the transferring document.
Page 108 FO-3800M ITEM Soft SW setting and function Factory Setting Reserved Reserved Reserved Reserved Reserved RING signal frequency check Used to select the allowable frequency range of RING signal. Used to perform a communication test by using a simple switchboard in production process.
Page 109 FO-3800M ITEM Soft SW setting and function Factory Setting Picture quality priority selection Used to set the default resolution in sending. 1 : Fine 0 : Standard Reserved Number of reception start calls Used to set the number of calls before reception in the auto reception mode.
Page 110 FO-3800M ITEM Soft SW setting and function Factory Setting Record list auto print Used to set the interval of automatic printing of the record list. Bit No. 1 day 2 days 4 days 1 week Reserved Reduction ratio in reception Used to set the magnification ratio of printing received documents.
Page 111 FO-3800M ITEM Soft SW setting and function Factory Setting Silent detection time Used to set the silent detection time in the answering and recording mode. The set range is OFF and 1 to 10sec. Time = 8 × Bit1 + 4 × Bit2 + 2 × Bit3 + 1 × Bit4 sec Effective : 0(= OFF), 1 –10...
Page 112: Disassembly, Assembly, Maintenance
FO-3800M [9] DISASSEMBLY, ASSEMBLY, MAINTENANCE 1. List • OIL/GRE (Lubricate, grease up) CLN (Clean) ADJ (Adjust) REP (Replace, install) CHP (Change position); (Clean, replace, lubricate, grease up according to necessity.) ASS (Assemble, disassemble) Section Unit Part After-work NOTE CODE S No.
Page 113 FO-3800M Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 005 Scanner (writing) Ua 001 Scanner (writing) unit P 001 No. 1 mirror P 002 No.
Page 114 FO-3800M Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 010 Ua 001 FAX operation P 001 FAX operation control PWB panel unit P 002...
Page 115 FO-3800M S001/P001 S001/P007/CLN S001/P004/CLN S001/P006 S001/P003 S001/ P002 S001/P005 9 – 4...
Page 116 FO-3800M S001/P009 S001/P008 S001/P001 Rear cabinet S001/P002 Front upper cabinet (1) Remove the screw and remove the rear cabinet (S001/P001) in (1) Open the operation unit and remove the screw. Remove the the arrow direction. front upper cabinet (S001/P002) in the arrow direction.
Page 117 FO-3800M S001/P003 Right cabinet S001/P005 Front right lower cabinet (1) Remove the screw and release the hook, then remove the right (1) Release the hook, and remove the front right lower cabinet cabinet (S001/P003). (S001/P005) from the right cabinet (S001/P003).
Page 118 FO-3800M (5) Lift and remove the document table glass (S001/P007). (7) Remove the connector earth and remove the bottom base plate (S001/P008). S001/P007/CLN ∗ Cleaning S001/P008 Use absolute alcohol to clean the document table glass. S001/P008 Bottom base plate S001/P009 Paper reception tray (1) Remove the rear cabinet S001/P001 .
Page 119: Operation Section
FO-3800M S002 Operation section Section Unit Part After-work NOTE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name CODE JOB No. S 002 Operation Ua 001 Operation unit P 001 Hinge P 002...
Page 120 FO-3800M (6) Remove the screw, remove the connector, and remove the operation control PWB (S002/Ua001/P002) and the key top (S002/Ua001/P003). S002/Ua001 (5) Fit the hinge (S002/Ua001/P001) lock hole and pull it out. S002/Ua001 P002 S002/Ua001 P003 S002/Ua001P001 ∗ ∗ Troubles caused by improper work...
Page 121 FO-3800M S003 Paper feed, paper transport section Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 003 Paper feed, paper P 001 Paper width detector...
Page 122 FO-3800M ∗ S003/P001 Paper width detector Troubles caused by improper work 1) Right/left void areas defective S003/P002 Paper set lever 2) Image position detective S003/P003 Paper pressure plate 3) Transfer roller dirt (1) Remove the rear cabinet S001/P001 . (Copy dirt) (Paper jam) (2) Remove the front upper cabinet S001/P002 .
Page 123 FO-3800M (9) Remove the scanner unit S004/Ua001 . (11) Remove the counter-screw, and remove the paper feed roller clutch spring (S003/P004), the paper feed roller (S003/P005), (10) Remove the screw, the gear, and the hook, and remove the the paper feed clutch sleeve A (S003/P006), and the paper feed upper frame (Scanner (writing) unit) unit.
Page 124 FO-3800M ∗ (15) As shown in the figure below, use a screwdriver to remove the Cleaning paper separator (S003/P009). Use absolute alcohol to clean the paper separator. ∗ Troubles caused by improper work 1) Mis-feed, paper jam 2) Paper skew...
Page 125 FO-3800M S004/Ua001/Ub001 /P002/CLN S004/Ua001/Ub002/P001/CLN S004/Ua001/Ub001 S004/Ua001/Ub001 /P003/CLN /P001/CLN S004/Ua001/ S004/Ua001/Ub002/P002/CLN P002 S004/Ua001/P001 S004/Ua001 S004/Ua001/P008 S004/Ua001/P006 S004/Ua001/P008 S004/Ua001/ P004/GRE S004/Ua001/ P005/CLN S004/Ua001/ P00/GRE S004/Ua001/ S004/Ua001/ P006/GRE P007/GRE 9 – 14...
Page 126 FO-3800M (7) Remove the screw and remove the scanner shaft. S004/Ua001 Scanner unit (1) Remove the rear cabinet S001/P001 . (2) Remove the front upper cabinet S001/P002 . (3) Remove the right cabinet S001/P003 . (4) Remove the left cabinet S001/P004 .
Page 127 FO-3800M ∗ (11) Remove the screw, the spring, and the belt, and remove the Grease scanner motor unit. Apply grease to #1 position. ∗ Troubles caused by improper work S004/Ua001/P003 1) L1-00 trouble 2) L3-00 trouble 3) Image deflection (14) Remove the screw and the connector, and remove the CCD unit (S004/Ua001/P005).
Page 128 FO-3800M ∗ (15) Remove the screw, and remove the scanner shaft (S004/Ua001/ Note for assembly P007). The wire on the front frame side is different from that on the rear frame side. Be careful not to mistake the wire colors.
Page 129 FO-3800M ∗ (10) Remove the connector, cut the binding band, and remove the Cleaning scanner unit A (S004/Ua001/Ub001). Use absolute alcohol to clean the scanner lamp light quantity sensor as shown below. S004/Ua001/Ub001 S004/Ua001/ Ub001/P003/CLN ∗ Troubles caused by improper work 1) Improper copy density (11) Remove the No.
Page 130 FO-3800M ∗ Cleaning Use absolute alcohol to clean the No. 1 mirror as shown below. S004/Ua001/Ub002/ P001/CLN S004/Ua001/Ub001/ P002/CLN S004/Ua001/Ub002/ P002/CLN ∗ Note for assembly Be careful not to mistake the front and the back sides of the no. 2 and No.
Page 131 FO-3800M S005 Scanner (writing) section Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 005 Scanner (writing) Ua 001 Scanner (writing) unit P 001 No.
Page 132 FO-3800M ∗ (8) Remove the screw, and remove the no. 2 mirror (fθ mirror) Cleaning (S005/Ua001/P004). Use absolute alcohol to clean the No. 1 cylindrical lens (S005/ Ua001/P010). S005/Ua001/P010/CLN S005/Ua004/P004/CLN Use absolute alcohol to clean the scanner mirror (motor) unit, and the laser beam sensor.
Page 133 FO-3800M S006 Image process section Section Unit Part After-work NOTE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name CODE JOB No. S 006 Image process P 001 Toner cartridge P 002 Photoconductor cartridge...
Page 134 FO-3800M ∗ S006/P001 Toner cartridge Cleaning Use absolute alcohol to clean the developing bias electrode. S006/P002 Photoconductor cartridge ∗ Troubles caused by improper work (1) Open the operation unit. 1) Print image trouble (Insufficient density, streaks in the main (2) Remove the toner cartridge (S006/P001).
Page 135 FO-3800M ∗ Cleaning S006/P006/CLN Use absolute alcohol to clean the separation electrode. ∗ Troubles caused by improper work 1) Paper jam (16) Remove the bottom base plate S001/P009 . (17) Pull out the main charger electrode SP (S006/P008). S006/P009/CLN ∗...
Page 136 FO-3800M S007 Fusing, paper exit Section Unit Part After-work NOTE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name CODE JOB No. S 007 Fusing, paper exit Ua 001 Fusing unit P 001...
Page 137 FO-3800M S007/Ua001/P002/CLN S007/Ua001/P001/CLN S007/Ua001/P003/CLN S007/Ua001 Fusing unit S007/Ua001/P001 Pressure roller S007/Ua001/P002 Paper guide sheet S007/Ua001/P003 Paper exit roller U S007/Ua001 (1) Remove the rear cabinet S001/P001 . (2) Remove the front upper cabinet S001/P002 . (3) Remove the right cabinet S001/P003 .
Page 138 FO-3800M ∗ Troubles caused by improper work 1) Fusing abnormality S007/Ua001/P003/CLN 2) Paper jam (12) Remove the pressure roller (S007/Ua001/P001). S007/Ua001/P001/CLN ∗ Cleaning Use absolute alcohol to clean the paper exit roller L. ∗ Troubles caused by improper work 1) Paper jam ∗...
Page 139 FO-3800M (2) Remove the paper exit detector (S007/Ua001/P005). S007/Ua001/P005 S007/Ua001/P008 S007/Ua001/P007/CLN #1. Fit the boss direction and remove. ∗ Troubles caused by improper work 1) Paper jam (3) Remove the screw, and remove the fusing temperature sensor (S007/Ua001/P006). ∗ Note for assembly...
Page 140: Drive Section
FO-3800M S008 Drive section Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 008 Drive P 001 Gears P 002 Main motor S008/P002 S008/P001/GRE...
Page 141: Electrical Section
FO-3800M S008/P001 Gear S008/P002 Main motor (1) Remove the rear cabinet S001/P001 . (1) Remove the rear cabinet S001/P001 . (2) Remove the front upper cabinet S001/P002 . (2) Remove the front upper cabinet S001/P002 . (3) Remove the right cabinet S001/P003 .
Page 142 FO-3800M S009/ Ua002 S009/Ua003 S009/Ua004 S009/Ua006 S009/ Ua005 S009/ Ua001 S009/Ua001/002 S009/Ua001/001 9 – 31...
Page 143 FO-3800M (6) Remove the screw, and remove the power PWB unit (S009/ S009/Ua001 Power PWB unit Ua001) from the base plate. S009/Ua001/P001 Electrical switch S009/Ua001/P002 Fuse (1) Remove the rear cabinet S001/P001 . S009/Ua001 (2) Remove the front upper cabinet S001/P002 .
Page 144 FO-3800M (7) Remove the connector, and push the MCU (PCU) PWB unit S009/Ua004 ICU PWB interface PWB unit (S009/Ua003) inside then remove. S009/Ua005 High voltage/motor drive PWB unit S009/Ua006 LIU PWB unit (1) Remove the base bottom base plate S001/P008 .
Page 145 FO-3800M S010/Ua001 FAX operation panel unit S010/Ua001/P011 S010/Ua001/P001 FAX operation control PWB S010/Ua001/P002 Enter key S010/Ua001/P003 Function key S010/Ua001/P004 One-touch key S010/Ua001/P002 S010/Ua001/P005 10-key S010/Ua001/P006 Start key S010/Ua001/P003 S010/Ua001/P007 Stop key S010/Ua001/ S010/Ua001/P008 SPF paper exit guide unit P007 S010/Ua001/P004...
Page 146 FO-3800M (5) Open the SPF paper guide (S010/Ua002/P008). Remove the (8) Remove the E-ring, the gear, and the bearing, and remove the paper feed unit (S010/Ua002/Ub001) from the SPF SPF paper guide (S010/Ua002/P003) and the SPF transport transport/paper feed unit, and disconnect the three connectors.
Page 147 FO-3800M (11) Remove the screw and remove the SPF motor (14) Remove the SPF paper entry detector (S010/Ua002/P007). (S010/Ua002/Ub002/P003). S010/Ua002/Ub001/P003 S010/Ua002/P007 (15) Remove the clutch unit. Remove the E-ring, the SPF paper feed clutch boss (S010/Ua002/Ub002/P004), the SPF paper feed...
Page 148 FO-3800M (16) Lift the paper stopper, and remove the pickup unit. S010/Ua003/P001 SPF open/close detector S010/Ua003/P002 Separation unit S010/Ua003/P003 Document mat S010/Ua003/P004 SPF transport follower roller A S010/Ua003/P005 SPF transport follower roller B (18) Remove the open/close detector (S010/Ua003/P001) and the separation unit (S010/Ua003/P002) from the SPF base unit (S010/Ua003).
Page 149 FO-3800M S011 Other section Section Unit Part After-work NOTE CODE S No. Part name Ua No. Unit name Ub No. Unit name P No. Part name JOB No. S 011 Others P 001 Fan motor S011/P001 Fan motor (1) Remove the rear cabinet S001/P001 .
Page 150: Troubleshooting
FO-3800M [10] TROUBLESHOOTING 1. Self diag message and troubleshooting A. Outline D. Self diag operation When a trouble occurs in the machine or when the life of a con- (1) Self diag operation and flow of countermeasures sumable part is approached or expired, the machine detects it by The machine is always watching its state.
Page 151 FO-3800M (2) Status detection and display Recognition of the machine status is made by each unit controller or The status data from the machine, the option and each unit are sent the machine’s controller according to the detection information of sen- to the host computer and displayed on the host computer’s display.
Page 152 FO-3800M F. Details SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP TITLE Scanner (reading) feed trouble DETAIL 1) The scanner (reading) feed operation is not performed. 2) The scanner (reading) feed operation is not recognized. SECTION...
Page 153 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP TITLE Scanner (reading) return trouble DETAIL 1) The scanner (reading) dose not return. 2) The scanner (reading) return completion is not recognized. SECTION Scanner (reading) ITEM TYPE (MODE)
Page 154 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP TITLE Laser beam output trouble DETAIL 1) Laser beams are not outputted. 2) Laser beams are not recognized. SECTION Scanner (writing) ITEM TYPE (MODE) User Warning Service...
Page 155 FO-3800M CASE 1 TROUBLE POSITION The scanner (reading) optical system does not transmit images (light) normally. CAUSE 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position shift REMEDY (Check) 1) Scanner (reading) optical system dirt 2) Scanner (reading) optical parts installing position...
Page 156 FO-3800M BASIC CAUSE 1 Dark component level output is not recognized normally during shading correction. CASE 1 TROUBLE POSITION Scanner (reading) optical system does not transmit images (light) normally. CAUSE 1) Scanner (reading) optical parts installing position shift REMEDY (Check)
Page 157 FO-3800M BASIC CAUSE 1 1) CCD level output recognition error during shading correction 2) Abnormally low or high CCD output level CASE 1 TROUBLE POSITION Scanner (reading) optical system does not transmit images (light) normally CAUSE 1) Scanner (reading) optical system dirt...
Page 158 FO-3800M BASIC CAUSE 1 ASIC internal register operation trouble CASE 1 TROUBLE POSITION ASIC internal register operation trouble CAUSE ASIC (MCU PWB) trouble REMEDY (Check) (Remedy) MCU PWB replacement (After work) 1) When the MCU PWB is replaced, perform simulations to input various set values and adjustment values.
Page 159 FO-3800M CASE 3 TROUBLE POSITION Copy lamp light quantity abnormality CAUSE 1) Copy lamp trouble 2) Copy lamp control PWB trouble 3) Copy lamp light quantity adjustment trouble REMEDY (Check) 1) Copy lamp 2) Copy lamp control PWB 3) Copy lamp light quantity level...
Page 160 FO-3800M BASIC CAUSE 1 1) Fusing temperature (thermistor) output level recognition error 2) Fusing temperature sensor (thermistor) output level abnormality CASE 1 TROUBLE POSITION Fusing temperature sensor (thermistor) signal recognition error CAUSE 1) Fusing temperature sensor (thermistor) trouble 2) MCU PWB temperature sensor (thermistor) input circuit trouble...
Page 161 FO-3800M CASE 1 TROUBLE POSITION Fusing temperature sensor (thermistor) signal recognition error CAUSE 1) Fusing temperature sensor (thermistor) trouble 2) MCU PWB fusing temperature sensor (thermistor) input circuit trouble REMEDY (Check) 1) Fusing temperature sensor (thermistor) 2) MCU PWB fusing temperature sensor (thermistor) input circuit...
Page 162 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP TITLE EEPROM (MCU PWB) trouble (read/write error) DETAIL EEPROM (MCU PWB) read/write operation trouble SECTION MCU PWB EEPROM ITEM TYPE (MODE) User Warning Service Trouble Other Other...
Page 163 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP TITLE RAM (MCU PWB) trouble (read/write error) DETAIL RAM (MCU PWB) read/write operation trouble SECTION MCU PWB ITEM TYPE (MODE) User Warning Service Trouble Other Other OPERATION MODE...
Page 164 FO-3800M CASE 2 TROUBLE POSITION Cabinet (operation unit) open/close detection switch actuator does not operate while the cabinet is CAUSE opened/closed. 1) Cabinet (operation unit) open/close trouble REMEDY (Check) 1) Cabinet (Operation unit) (Remedy) 1) Cabinet (operation unit) replacement (After work)
Page 165 FO-3800M CASE 1 TROUBLE POSITION Paper entry detector (PIN) signal recognition error CAUSE 1) Paper entry (PIN) trouble 2) Paper entry detector (PIN) signal input circuit trouble REMEDY (Check) 1) Paper entry detector (PIN) 2) MCU PWB paper entry detector (PIN) signal input circuit...
Page 166 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE SUB CODE LAMP Paper jam lam blinking TITLE Paper jam (fusing, paper exit section) DETAIL 1) Paper exit detector (POUT) malfunction 2) Paper exit detector (POUT) signal recognition error SECTION...
Page 167 FO-3800M SELF DIAG CODE MESSAGE PHENOMENON DISPLAY CODE MAIN CODE –1 SUB CODE LAMP SPF jam lamp blinking TITLE SPF document mis-feed DETAILS 1) SPF paper entry detector (SW2) malfunction 2) SPF paper entry detector (SW2) signal is not normally recognized.
Page 168: Troubleshooting Of Print Operation (Printer Mode)
FO-3800M 2. Troubleshooting of print operation (Printer mode) Problem Cause Remedy The ready lamp (green) does The power switch is not turned on. Turn on the power switch. not light up. The power cord is not connected Check the power cord connection.
Page 169 FO-3800M Problem Cause Remedy Slow print speed When Windows 95 is used, Point the start task bar setting, and click the printer. spooling is not properly set. Click the printer icon with the right button of the mouse to select the property.
Page 170: Troubleshooting Of Copy/Print Quality
Sample (Sample No.) Insufficient, irregular density Paper quality problem Use paper which satisfies the printer Thank you very much for buying a SHARP laser printer. This manual of printing specification. tells you how to set up, operate and maintain your new printer, and contains advice on how to get the best performance from the printer.
Page 171 Missing character Wet paper Print with different paper. If a paper package Thank you very much for buying a SHARP laser printer. This manual is opened unnecessarily, paper absorbs tells you how to set up, operate and maintain your new printer, and contains advice on how to get the best performance from the printer.
Page 172 FO-3800M Problem Cause Remedy Sample (Sample No.) Black streaks (paper Developer cartridge trouble Replace the developer cartridge. SMP2 transport direction) Photoconductor cartridge Replace the photoconductor cartridge. trouble Laser unit trouble Replace the upper frame unit. Control PWB trouble Repair the control PWB.
Page 173 FO-3800M Problem Cause Remedy Sample (Sample No.) Banding Developer cartridge trouble Replace the developer cartridge. SMP8 Photoconductor cartridge Replace the photoconductor cartridge. trouble Scanner (writing) section Adjust the installing position of the scanner drive trouble (writing) section drive part or replace it.
Page 174 FO-3800M SMP1 SMP2 10 – 25...
Page 175 FO-3800M SMP3 SMP4 10 – 26...
Page 176 FO-3800M SMP5 SMP6 10 – 27...
Page 177 FO-3800M SMP7 SMP8 10 – 28...
Page 178 FO-3800M SMP9 SMP10 Streaks and dots in the pitch of about 78mm SMP11 Streaks and dots in the pitch of about 45mm 10 – 29...
Page 179 FO-3800M CAUTION FOR BATTERY REPLACEMENT (Danish) ADVARSEL ! Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandoren. (English) Caution ! Danger of explosion if battery is incorrectly replaced.
Page 180 FO-3800M All rights reserved. Printed in Japan. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic; mechanical; photocopying; recording or otherwise without prior written permission of the publisher.

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