Gestetner A294 Service Manual

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CÓPIA NÃO CONTROLADA

A294/A295

SERVICE MANUAL

000902MIU

RICOH GROUP COMPANIES

CÓPIA NÃO CONTROLADA

Table of Contents

Troubleshooting

Summary of Contents for Gestetner A294

Page 1: Service Manual
CÓPIA NÃO CONTROLADA A294/A295 SERVICE MANUAL 000902MIU RICOH GROUP COMPANIES CÓPIA NÃO CONTROLADA...
Page 2 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 3 CÓPIA NÃO CONTROLADA ® ® RICOH GROUP COMPANIES CÓPIA NÃO CONTROLADA...
Page 4 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 5 CÓPIA NÃO CONTROLADA A294/A295 SERVICE MANUAL 000902MIU CÓPIA NÃO CONTROLADA...
Page 6 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 7 CÓPIA NÃO CONTROLADA It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH CORPORATION.
Page 8 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 9 CÓPIA NÃO CONTROLADA WARNING The Service Manual contains information regarding service techniques, procedures, processes and spare parts of office equipment distributed by Ricoh Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Unt ra ined and uncer tified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal...
Page 10 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 11 GESTETNER RICOH SAVIN A294-I 3285 Aficio 850 2085DP A295-I 32105 Aficio1050 2105DP A294-II 8502 Aficio 1085 2585 A295-II 10502 Aficio 1105 25105 DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 1/2000 Original Printing 7/2000 A295 Addition 9/2001 A294-II/A295-II Addition CÓPIA NÃO CONTROLADA...
Page 12 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 13: Table Of Contents
CÓPIA NÃO CONTROLADA Rev. 10/2000 TABLE OF CONTENTS OVERALL INFORMATION 1. OVERALL MACHINE INFORMATION ........1-1 1.1 SPECIFICATIONS..................1-1 1.1.1 COPIER ENGINE ................1-1 1.1.2 ADF ....................1-4 1.2 MACHINE CONFIGURATION ..............1-5 1.3 COMPONENT LAYOUT ................1-6 1.3.1 COPIER ENGINE ................1-6 1.3.2 ADF ....................1-7 1.4 PAPER PATH....................1-8 1.5 COPY PROCESS..................1-9 1.6 DRIVE LAYOUT ..................1-11...
Page 14 2.9 IMAGE TRANSFER AND PAPER SEPARATION ........2-93 2.9.1 OVERVIEW ..................2-93 2.9.2 IMAGE TRANSFER AND PAPER SEPARATION ......2-94 2.9.3 TRANSFER BELT UNIT LIFT............2-96 2.9.4 PAPER TRANSPORTATION AND BELT DRIVE ......2-97 2.9.5 TRANSFER BELT CLEANING ............2-98 2.9.6 TONER COLLECTION ..............2-99 2.9.7 TRANSFER ANTI-CONDENSATION HEATER......2-100 A294/A295 CÓPIA NÃO CONTROLADA...
Page 15 3.1 INSTALLATION REQUIREMENTS ............3-1 3.1.1 ENVIRONMENT ................3-1 3.1.2 MACHINE LEVEL ................3-1 3.1.3 MINIMUM SPACE REQUIREMENTS..........3-2 3.1.4 POWER REQUIREMENTS ..............3-2 3.2 COPIER (A294) ..................3-3 3.2.1 ACCESSORY CHECK..............3-3 3.2.2 INSTALLATION PROCEDURE ............3-5 3.3 FINISHER INSTALLATION (B302)............3-13 3.3.1 ACCESSORY CHECK..............3-13 3.3.2 INSTALLATION PROCEDURE ............3-14 3.4 LCT INSTALLATION (B303)..............3-17...
Page 16 4.6 LANGUAGE DATA DOWNLOAD ............4-81 4.7 STAMP DATA DOWNLOAD..............4-81 4.8 USER PROGRAM MODE ...............4-82 4.8.1 HOW TO ENTER AND EXIT UP MODE.........4-82 4.8.2 UP MODE TABLE................4-82 4.8.3 IMAGE QUALITY SETTING BY UP MODE ........4-85 4.8.4 LEDS ....................4-91 A294/A295 CÓPIA NÃO CONTROLADA...
Page 17 CÓPIA NÃO CONTROLADA Rev. 9/2001 4.9 TEST POINTS/DIP SWITCHES/LEDS ............4-92 4.9.1 DIP SWITCHES................4-92 4.9.2 TEST POINTS ................4-93 4.9.3 FUSES....................4-93 4.9.4 VARIABLE RESISTORS ..............4-93 4.10 SPECIAL TOOLS AND LUBRICANTS ..........4-94 4.10.1 SPECIAL TOOLS .................4-94 4.10.2 LUBRICANTS ................4-94 PREVENTIVE MAINTENANCE 5. PREVENTIVE MAINTENANCE SCHEDULE ......5-1 5.1 PM PARTS ....................5-1 REPLACEMENT AND ADJUSTMENT 6.
Page 18 LCT RELAY CLUTCH REMOVAL ..........6-75 6.8.15 REGISTRATION MOTOR REMOVAL ..........6-76 6.8.16 COPIER FEED UNIT/DEVELOPMENT FAN MOTOR REMOVAL ..................6-77 6.8.17 LCT RELAY AND RELAY SENSOR REMOVAL ......6-78 6.8.18 TANDEM FEED TRAY PAPER SIZE CHANGE ......6-79 6.8.19 MECHANICAL SIDE REGISTRATION ADJUSTMENT ....6-82 A294/A295 CÓPIA NÃO CONTROLADA...
Page 19 CÓPIA NÃO CONTROLADA Rev. 2/2000 6.9 FUSING UNIT..................6-83 6.9.1 OIL SUPPLY & CLEANING WEB UNIT REMOVAL .......6-83 6.9.2 HOT ROLLER UNIT REMOVAL AND PRESSURE ROLLER REPLACEMENT.........6-84 6.9.3 HOT ROLLER REPLACEMENT .............6-86 6.9.4 OIL SUPPLY & CLEANING WEB REPLACEMENT .......6-88 6.9.5 WEB CLEANING ROLLER REPLACEMENT .........6-90 6.9.6 HOT ROLLER STRIPPER REPLACEMENT ........6-91 6.9.7 PRESSURE ROLLER STRIPPER REPLACEMENT ......6-92 6.9.8 PRESSURE ROLLER CLEANING ROLLER REPLACEMENT ..6-93...
Page 20 7.2 ELECTRICAL COMPONENT DEFECTS..........7-37 7.2.1 SENSORS ..................7-37 7.2.2 SWITCHES..................7-41 7.3 BLOWN FUSE CONDITIONS ..............7-42 7.4 FIRMWARE HISTORY ................7-43 7.4.1 A294 / A295 FIRMWARE MODIFICATION HISTORY....7-43 3,000-SHEET FINISHER B302 1. OVERALL MACHINE INFORMATION ........8-1 1.1 SPECIFICATIONS..................8-1 1.2 MECHANICAL COMPONENT LAYOUT............8-3 1.3 ELECTRICAL COMPONENT DESCRIPTION...........8-4...
Page 21 CÓPIA NÃO CONTROLADA Rev. 8/2000 4.4.4 ENTRANCE AND STAPLER TRAY ENTRANCE SENSORS ........8-29 4.4.5 PRE-STACK STOPPER SENSOR ..........8-30 4.4.6 STAPLE WASTE HOPPER SENSOR ..........8-31 4.4.7 STAPLER ROTATION HP AND STAPLER RETURN SENSORS.............8-32 4.5 STAPLER REMOVAL................8-33 4.6 PUNCH POSITION ADJUSTMENT............8-34 4.7 ROM HISTORY ..................8-35 4.7.1 FIRMWARE MODIFICATION HISTORY ........8-35 LARGE CAPACITY TRAY B303 1.
Page 22 2.1 SECTIONAL DESCRIPTION..............10-2 3. REPLACEMENT AND ADJUSTMENT........10-3 3.1 BOTTOM PLATE LIFT WIRE REPLACEMENT ........10-3 DIFFERENCES FROM THE A294 I / A295 I MODELS 1 DETAILED SECTION DESCRIPTIONS ........11-1 1.1 TONER AND DEVELOPER..............11-1 1.2 NEWLY ADDED: DEVELOPMENT SUCTION MOTOR AND SUCKED TONER COLLECTION BOTTLE ..........11-1...
Page 23: Important Safety Notices
2. The NVRAM on the SICU has a lithium battery which can explode if replaced incorrectly. Replace the NVRAM only with an identical one. The manufacturer recommends replacing the entire NVRAM. Do not recharge or burn this battery. Used NVRAM must be handled in accordance with local regulations. A294/A295 CÓPIA NÃO CONTROLADA...
Page 24: Laser Safety
WARNING WARNING: Turn off the main switch before attempting any of the procedures in the Laser Unit section. Laser beams can seriously damage your eyes. CAUTION MARKING: A294/A295 CÓPIA NÃO CONTROLADA...
Page 25 Rev. 9/2001 OVERALL INFORMATION A294/A295 LARGE CAPACITY TRAY B303 DETAILED DESCRIPTIONS A294/A295 A3/DLT TRAY KIT B331 INSTALLATION A294/A295 DIFFERENCES FROM A294 I/A295 I SERVICE TABLES A294/A295 PREVENTIVE MAINTENANCE A294/A295 REPLACEMENT AND ADJUSTMENT A294/A295 TROUBLESHOOTING A294/A295 3,000-SHEET FINISHER B302 CÓPIA NÃO CONTROLADA...
Page 26 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 27: Overall Information
CÓPIA NÃO CONTROLADA OVERALL INFORMATION CÓPIA NÃO CONTROLADA...
Page 28 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 29: Overall Machine Information
90 to 110 lbs Index LCT, Tray 6: Same as Mainframe, Trays 1 to 3 Duplex Tray: 64 to 163 g/m 20 to 40 lbs Bond 50 to 60 lbs Cover 90 lbs Index (no Tab) A294/A295 CÓPIA NÃO CONTROLADA...
Page 30 4th/5th Tray (LCT): 1,000 sheets each 6th Tray (LCT): 2,500 sheets Memory Capacity: A294: RAM: 48 MB x 2, HDD: 4.3 GB x 2 A295: RAM: 48 MB x 2, HDD: 6.8 GB x 2 Toner Replenishment: Cartridge exchange (1,450 g/cartridge) A294/A295 CÓPIA NÃO CONTROLADA...
Page 31 North America: 220 ~ 240 V, 60 Hz, 20 A Europe/Asia: 220 ~ 240 V, 50Hz/60 Hz, 16 A Note: For USA installations, standard 220V (+/- 10%) wall voltage is acceptable. Power Consumption: A294: N. America Version Mainframe Only Full System * Warm-up about 1.96 kW about 1.98 kW Stand-by about 0.79 kW...
Page 32: Adf
One flat belt Original Feed Order: From the top original Power Source: DC 24 V and DC 38 V from the copier Power Consumption: 145 W Dimensions (W x D x H): 680 x 560 x 150 mm A294/A295 CÓPIA NÃO CONTROLADA...
Page 33: Machine Configuration
CÓPIA NÃO CONTROLADA Rev. 6/2000 MACHINE CONFIGURATION 1.2 MACHINE CONFIGURATION A294V502.WMF Item Machine Code Mainframe A294 / A295 Finisher B302 B303 Interface Kit Type 850: * B327 A3/DLT Tray Kit Type 850 B331 Replaces the tandem LCT CD-RW B334 (CDROM reader/writer): *...
Page 34: Component Layout
30. Paper Cooling Pipe 13. Registration Roller 31. Hot Roller 14. LCT Relay Roller 32. Motor Control Unit 15. Transfer Belt Unit 33. Oil Supply & Cleaning Web 16. Relay Roller 34. Drum Unit 17. Pick-up Roller A294/A295 CÓPIA NÃO CONTROLADA...
Page 35: Adf
17. Registration Sensor 7. Inverter Gate 18. Lower Transport Roller 8. Inverter Guide Roller 19. Width Sensor 9. Inverter Sensor 20. Upper Transport Roller 10. Right Tray Exit Roller 21. Entrance Sensor 11. Right Exit Tray A294/A295 CÓPIA NÃO CONTROLADA...
Page 36: Paper Path
1.4 PAPER PATH A294V504.WMF 1. ADF 6. Duplex Unit 2. Optional LCT 7. Finisher 3. Tray 3 (500-sheet) 8. Inverter Unit 4. Tray 2 (500-sheet Tray) 9. Shift Tray 5. Tray 1 (Tandem Tray) 10. Upper Tray A294/A295 CÓPIA NÃO CONTROLADA...
Page 37: Copy Process
The grid plate ensures that corona charge is applied uniformly. The charge remains on the surface of the drum because the OPC layer has a high electrical resistance in the dark. A294/A295 CÓPIA NÃO CONTROLADA...
Page 38 The cleaning brush removes toner remaining on the drum after image transfer and the cleaning blade scrapes off all remaining toner. 10. QUENCHING The light from the quenching lamp electrically neutralizes the charge on the drum surface. A294/A295 1-10 CÓPIA NÃO CONTROLADA...
Page 39: Drive Layout
CÓPIA NÃO CONTROLADA DRIVE LAYOUT 1.6 DRIVE LAYOUT 1.6.1 COPIER ENGINE A294V501.WMF 1. Drum Motor 2. Scanner Motor 3. Fusing/Duplex Motor 4. Paper Feed Motor 5. Registration Motor 6. Relay Motor 7. Development Motor 1-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 40: Adf
9. Lower Transport Roller 3. Feed-in Motor 10. Upper Transport Roller 4. Transport Motor 11. Separation Roller 5. Upper Exit Roller 12. Feed Belt 6. Feed-out Motor 13. Pick-up Roller 7. Right Exit Roller 14. Feed-in Clutch A294/A295 1-12 CÓPIA NÃO CONTROLADA...
Page 41: Electrical Component Descriptions
Optics Cooling Fan Removes heat from the scanner optics unit. Polygonal Mirror Removes heat from around the polygonal mirror Motor Cooling Fan motor. LDB Cooling Fan Removes heat from around the LDB. 1-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 42 3rd Paper Feed Controls the 3rd paper feed clutch on/off timing and the 3rd pick-up solenoid off timing. 1st Tray Lift Detects when the paper in tray 1 is at the correct height for paper feed. A294/A295 1-14 CÓPIA NÃO CONTROLADA...
Page 43 Detects if the duplex jogger fences are at the home position or not. LCT Relay Detects misfeeds. Relay Detects misfeeds. Registration Detects misfeeds and controls registration clutch on/off timing. Guide Plate Position Detects whether the registration guide plate is open or closed. 1-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 44 Roller roller in tray 3. Front Side Fence Opens and closes the front side fence in the tandem SOL8 tray. Rear Side Fence Opens and closes the rear side fence in the tandem SOL9 tray. A294/A295 1-16 CÓPIA NÃO CONTROLADA...
Page 45 BCU (Base Engine Controls all base engine functions both directly and PCB1 Control Unit) through other control boards. SICU (Scanner Controls image processing, the laser diode, and the PCB2 Image Control Unit) polygonal mirror motor. 1-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 46 Turns on when the main switch is off to keep paper (option) dry in the paper tray. Scanned image data is compressed and held here HDD1 temporarily. Scanned image data is compressed and held here HDD2 temporarily. Noise Filter Removes noise from the power line. A294/A295 1-18 CÓPIA NÃO CONTROLADA...
Page 47: Adf
Detects the leading edge of the original to check the original length, detects when to stop the original on the exposure glass, and checks for misfeeds. Original Width 1 Detects the original width. Original Width 2 Detects the original width. 1-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 48 PCBs DF Main Controls the DF and communicates with PCB1 the main copier boards. DF Indicator Indicates whether an original has been PCB2 placed in the feeder, and indicates whether SADF mode has been selected. A294/A295 1-20 CÓPIA NÃO CONTROLADA...
Page 49: Detailed Descriptions
CÓPIA NÃO CONTROLADA DETAILED DESCRIPTIONS CÓPIA NÃO CONTROLADA...
Page 50 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 51: Detailed Section Descriptions
[D] drops onto the original. When the original reaches the entrance sensor, the pick-up motor turns on again. The cam pushes the lever down, and the pick-up roller rises until the pick-up roller HP sensor [E] detects the actuator [F]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 52: Bottom Plate Lift
[C] turns off. Then, the bottom plate motor turns on and lifts the bottom plate until the bottom plate position sensor turns on. This keeps the original at the correct height for feeding. A294/A295 CÓPIA NÃO CONTROLADA...
Page 53: Pick-Up And Separation
When there is only one sheet between the feed belt and separation roller, the separation roller rotates in the same direction as the feed belt. This is because the separation roller contains a torque limiter. A294/A295 CÓPIA NÃO CONTROLADA...
Page 54: Original Feed
[C]. At the same time, the pick-up motor starts again and the pick-up roller [D] is lifted up. When the pick-up roller HP sensor turns on, the pick-up motor stops (see Pick- up Roller Release). A294/A295 CÓPIA NÃO CONTROLADA...
Page 55: Original Size Detection
[G]. Original Width The CPU detects original width using three original width sensors -1, -2, -3 as shown above. Three small circles on the diagram indicate the positions of the sensors. A294/A295 CÓPIA NÃO CONTROLADA...
Page 56: Original Transport
To prevent such problems, the original transfer position is set to 3.5 mm away from the rear scale as shown. The 3.5 mm gap is compensated for by changing the starting position of the main scan. A294/A295 CÓPIA NÃO CONTROLADA...
Page 57: Original Skew Correction
After a two-sided original has been inverted to copy the 2nd side, it is fed in from the inverter against the left scale (see the bottom drawing; the top two drawings do not apply in this mode). The amount of reverse feed against the left scale can be adjusted with SP modes. A294/A295 CÓPIA NÃO CONTROLADA...
Page 58: Original Inversion And Feed-Out
This causes the originals to be fed out in the correct order on the exit trays and allow the maximum one-to-one copy speed for each mode. Þ A294/A295 CÓPIA NÃO CONTROLADA...
Page 59 [D], inverter guide roller [E], inverter gate [F], and inverter roller. The transport belt motor turns in reverse shortly after the leading edge of the original turns on the inverter sensor [G], and feeds the original to the left scale. A294/A295 CÓPIA NÃO CONTROLADA...
Page 60 The transport belt motor turns off after the exit sensor [B] turns off. To stack the originals neatly on the exit tray, the feed-out motor speed is reduced about 30 mm before the trailing edge of the original turns off the exit sensor. A294/A295 2-10 CÓPIA NÃO CONTROLADA...
Page 61 [C]. To stack the originals neatly on the upper tray, the feed-out motor speed is reduced shortly after the trailing edge of the original turns off the inverter sensor [D]. 2-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 62: Jam Conditions
96 mm after the exit sensor turned on. 10. The inverter sensor is still off when the transport and feed-out motors have fed the original 96 mm to the exposure glass after the exit sensor turned off. A294/A295 2-12 CÓPIA NÃO CONTROLADA...
Page 63: Scanning
If the optional optics anti-condensation heater [E] is installed, it turns on while the main switch is off, to prevent moisture from forming on the optics. 2-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 64: Scanner Drive
SICU board. Magnification in the sub-scan direction can be adjusted by changing the scanner drive motor speed using SP4-008. A294/A295 2-14 CÓPIA NÃO CONTROLADA...
Page 65: Original Size Detection In Book Mode
While the main switch is on, these sensors are active and the original size data is always sent to the main CPU. However, the main CPU checks the data only when the DF is being closed. 2-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 66 Start key is pressed. The above table shows the outputs of the sensors for each original size. This original size detection method eliminates the necessity for a pre-scan and increases the machine productivity. A294/A295 2-16 CÓPIA NÃO CONTROLADA...
Page 67: Image Processing
• MSU: Image compression, image rotation, interface with HDD controller, image repeat, and combine originals Finally, the SICU board sends the video data to the laser diode array (LDA) on the LD drive board (LDB). 2-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 68: Sbu
A/D converter. This gives a value for each pixel on scale of 256 grades. Then, the two 8-bit signals are sent to the SICU board through the LVDS (Low Voltage Differential Signaling). The LVDS is a noise-resistant interface. A294/A295 2-18 CÓPIA NÃO CONTROLADA...
Page 69: Auto Image Density (Ads)
As with previous digital copiers, the user can select manual image density when selecting auto image density mode and the machine will use both settings when processing the original. 2-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 70: Image Processing Steps And Related Sp Mode
Service Mode Soft Normal Sharp Service Mode Pale Soft Normal Sharp Service Mode Generation A294D011.WMF For more details about the settings available for the user, see Service Tables – Image Quality Setting by UP Mode. A294/A295 2-20 CÓPIA NÃO CONTROLADA...
Page 71 • SP2909-001 Magnification Main Scan Magnification (Main Scan Magnification) • SP4903-84 * γ Correction ID Control (Scanner gamma setting) • Error Diffusion/ SP4903-78 to 80 *, 4904-20 Gradation Line Width Correction (Line Width Correction Type) 2-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 72 Level in Photo Mode) • SP4904-006 (Smoothing Filter Level) • SP2909-001 Magnification Main Scan Magnification (Main Scan Magnification) γ Correction ID Control • SP4904-002 * Error Diffusion/ Gradation (Grayscale Process Selection: Dither Matrix Dither or Error Diffusion) A294/A295 2-22 CÓPIA NÃO CONTROLADA...
Page 73 (Main Scan Magnification) • SP4903-85 * γ Correction ID Control (Scanner gamma setting) • SP4904-003, 005 * Error Diffusion/ (Error Diffusion) Gradation • Line Width Correction SP4903-81 to 83 *, SP4904-22 (Line Width Correction Type) 2-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 74 SP4903-055 to 056 * (MTF Filter Coefficient – Pale Originals) • SP2909-001 Magnification Main Scan Magnification (Main Scan Magnification) γ Correction ID Control • SP4904-23 Grayscale Processing/ Gradation (Line Width Correction Type) Line Width Correction A294/A295 2-24 CÓPIA NÃO CONTROLADA...
Page 75 SP4903-057 to 058 * (MTF Filter Coefficient – Generation Copy) • SP2909-001 Magnification Main Scan Magnification (Main Scan Magnification) γ Correction ID Control • Grayscale Processing/ SP4903-75 to 77*, SP4904-24 Gradation Line Width Correction (Line Width Correction Type) 2-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 76: Auto Shading
(ADF mode). This corrects for the following effects on each pixel: • Loss of brightness at the ends of the exposure lamp and the edges of the lens • Variations in sensitivity among the CCD elements • Distortions in the light path A294/A295 2-26 CÓPIA NÃO CONTROLADA...
Page 77: Background Erase
[A]. This process can be applied for each image mode by changing the setting of SP4-903-70, 71, 72, 73 or 74. The thresholds can be changed with SP4-903-65 to 69. 2-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 78: Independent Dot Erase
SP4-903-60, 62, 63 or 64. If a larger number is selected, the effect of independent dot erase will be stronger. If 0 is selected, independent dot erase is disabled. Object pixel Surrounding pixels to be used for calculation Ignored pixels A294D592.WMF A294/A295 2-28 CÓPIA NÃO CONTROLADA...
Page 79: Filtering, Main Scan Magnification/Reduction
For photo mode, the smoothing filter is the default filter, but the MTF filter may be selected by SP mode 4-903-9. This is effective when putting more weight on improving the resolution when copying from “continuous tone” originals. 2-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 80 For example, if a 49% magnification ratio is selected, the scanner speed is the same as the speed of 98% magnification, but the number of sub scan lines used for the image is half of that for 98% magnification. A294/A295 2-30 CÓPIA NÃO CONTROLADA...
Page 81: Gamma (Γ) Correction
(full dot, half dot, or blank) using two thresholds. With this processing, halftone images are reproduced smoother than with four-gradation processing because of stable dot image reproduction due to only one intermediate density level. 2-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 82: Line Width Correction
The threshold for detecting edges of lines can also be changed separately for vertical lines and horizontal lines. Use SP4-903-75 to 83 to adjust the line width correction settings. Line width can also be corrected by adjusting the laser output (SP4904-20 to 24). A294/A295 2-32 CÓPIA NÃO CONTROLADA...
Page 83: Laser Exposure
(LDR). Briefly, the width of the laser pulse for a pixel depends on the output level (from 0 to 3) required for the pixel. There are two fan motors, the polygonal motor cooling fan [A] and LDB cooling fan [B], for removing heat in the laser unit. 2-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 84: Optical Path
This board generates and sends a synchronization signal when the laser synchronization detector mirror [K] reflects the laser beam to the detector as the laser beam starts its sweep across the drum. The detector detects only the uppermost beam (channel 1) of the four. A294/A295 2-34 CÓPIA NÃO CONTROLADA...
Page 85: Auto Power Control (Apc)
This auto power control is done just after the machine is turned on and during printing while the laser diode is active. The reference levels are adjusted on the production line. Do not touch the variable resistors on the LDB in the field. 2-35 A294/A295 CÓPIA NÃO CONTROLADA...
Page 86: Four Beam Laser Writing
42 µm. So the beam spots overlap each other as shown above. The laser diode array is assembled and adjusted in the factory, and no adjustment can be done in the field. A294/A295 2-36 CÓPIA NÃO CONTROLADA...
Page 87: Ld Safety Switches
Even if 12 V is supplied from the op amp which controls the LD power level, the power will be less than the minimum power required for LD lighting (5 mA) due to the 2.7 kΩ resistor. 2-37 A294/A295 CÓPIA NÃO CONTROLADA...
Page 88: Drum Unit
Processes 1, 3, and 4 in the above list compensate for changes in drum potential. Processes 2 and 5 are for toner density control; see the “Toner Density Control” section for more details. A294/A295 2-38 CÓPIA NÃO CONTROLADA...
Page 89 SP3-001-002. If the ID sensor output cannot be adjusted to within the standard, an SC353 or 354 is logged and the light intensity is set to the previous accepted value. 2-39 A294/A295 CÓPIA NÃO CONTROLADA...
Page 90 If the CPU cannot get V within the target range by changing V is set to the value stored in SP2-001-01 and LD power is set to the value stored in SP2-103. Then SC312, SC313, or SC315 is logged. A294/A295 2-40 CÓPIA NÃO CONTROLADA...
Page 91 LD power can be displayed using SP3-902-5 (the default is stored in SP2- 103-1-4). If V cannot be adjusted to within the standard within 20 attempts, LD power is set to the latest value (the one used for the 20th attempt) and SC314 or SC316 is logged. 2-41 A294/A295 CÓPIA NÃO CONTROLADA...
Page 92 It is also updated at the end of the copy job, if 10 or more copies have been made since the last V update. It is not updated at the start of a job or at any time during a job. A294/A295 2-42 CÓPIA NÃO CONTROLADA...
Page 93: Toner Density Control
ID sensor pattern check determines the GAIN factor in the toner supply calculation (see later in this section). In TD sensor control mode, GAIN depends on the current TD sensor output also (V – V is used). 2-43 A294/A295 CÓPIA NÃO CONTROLADA...
Page 94 If the reading of the ID sensor becomes abnormal while checking the ID sensor pattern, SC350, SC351, or SC352 is logged and the toner density control is done using TD sensor only. See “V Update” in the Process Control section for more details. A294/A295 2-44 CÓPIA NÃO CONTROLADA...
Page 95 This mode should only be use as a temporary countermeasure while waiting for replacement parts, such as a TD sensor. This mode controls the toner supply using the same formula for the toner supply clutch on time. However, the GAIN value is fixed at 0.7. 2-45 A294/A295 CÓPIA NÃO CONTROLADA...
Page 96: Drum Unit Components
(diameter: 100 mm) is used for this model. 1. OPC Drum 6. Cleaning Brush 2. Drum Potential Sensor 7. Cleaning Blade 3. Pick-off Pawl 8. Quenching Lamp 4. Image Density Sensor 9. Charge Corona Unit 5. Toner Collection Coil A294/A295 2-46 CÓPIA NÃO CONTROLADA...
Page 97: Drive
The drum motor has a drive controller, which outputs a motor lock signal when the rotation speed is out of the specified range. The fly-wheel [D] on the end of the drum drive shaft stabilizes the rotation speed. 2-47 A294/A295 CÓPIA NÃO CONTROLADA...
Page 98: Drum Charge
The voltage to the grid plate is automatically controlled to maintain the correct image density in response to changes in drum potential caused by dirt on the grid plate and charge corona casing. This is described in the Process Control section in more detail. A294/A295 2-48 CÓPIA NÃO CONTROLADA...
Page 99 (black arrow in the illustration), the wire cleaner pads clean the wires. Cleaning is done at auto process control, if 5,000 copies were made since the wires were cleaned last, but only if the fusing temperature is less than 100°C. 2-49 A294/A295 CÓPIA NÃO CONTROLADA...
Page 100: Drum Cleaning
To remove any accumulated toner at the edge of the cleaning blade, the drum turns in reverse for about 4 mm [E] at the end of every copy job. The accumulated toner is deposited on the drum and is removed by the cleaning brush. A294/A295 2-50 CÓPIA NÃO CONTROLADA...
Page 101 [C] directly. The cleaning brush then transmits the drive to the gear at the front, which drives the toner collection coil gear [D]. Toner recycling is described in the Toner Supply and Recycling section. 2-51 A294/A295 CÓPIA NÃO CONTROLADA...
Page 102 The guide roller [C] at the rear end of the cleaning blade holder touches the cam gear [D], which moves the blade from side to side. This movement helps to disperse accumulated toner to prevent early blade edge wear. A294/A295 2-52 CÓPIA NÃO CONTROLADA...
Page 103: Others
To prevent foreign matter from entering the copier inside, there is a dust protection filter in the entrance [D] of the duct. Another dust filter [E] prevents dust from reaching the ozone filter. 2-53 A294/A295 CÓPIA NÃO CONTROLADA...
Page 104 The pick-off pawls always contact the drum surface using a light spring pressure. They move from side to side during the copy cycle to prevent drum wear at any particular location. This movement is made via a shaft [A] and a cam [B]. A294/A295 2-54 CÓPIA NÃO CONTROLADA...
Page 105 In preparation for the next copy cycle, light from the quenching lamp [A] neutralizes any charge remaining on the drum. The quenching lamp consists of a line of 16 red LEDs extending across the full width of the drum. 2-55 A294/A295 CÓPIA NÃO CONTROLADA...
Page 106: Development
The machine contains a toner recycling system. Toner recycled from the drum cleaning unit is transferred to the toner hopper with fresh toner, where they are mixed by the toner agitator. The mechanism is explained in the Toner Supply and Recycling section. A294/A295 2-56 CÓPIA NÃO CONTROLADA...
Page 107: Development Mechanism
The development rollers continue to turn, carrying the developer to the drum [D]. When the developer brush contacts the drum surface, the low-negatively charged areas of the drum surface attract and hold the negatively charged toner. In this way, the latent image is developed. 2-57 A294/A295 CÓPIA NÃO CONTROLADA...
Page 108: Drive
The above gears are helical gears. Helical gears are more quiet than normal gears. The teeth of the development drive gear are chamfered so that they smoothly engage the development roller gear [E] when the unit is installed. A294/A295 2-58 CÓPIA NÃO CONTROLADA...
Page 109: Crossmixing
[F]. The agitator moves the developer slightly to the front as it turns, so the developer stays level in the development unit. 2-59 A294/A295 CÓPIA NÃO CONTROLADA...
Page 110: Development Bias
In addition, the development bias is applied to the lower portion of the developer housing to prevent toner from being re-attracted back from the drum. A294/A295 2-60 CÓPIA NÃO CONTROLADA...
Page 111: Toner Supply And Recycling
Toner is supplied from the toner bottle to the toner entrance tank [D]. The toner near end sensor [E] (at the rear right of the toner bank unit) checks for the presence of toner in the toner entrance tank. 2-61 A294/A295 CÓPIA NÃO CONTROLADA...
Page 112 The second toner bottle is then rotated up to 15 times. If the near-end sensor detects toner after 5 times, the machine can print from that bottle. A294/A295 2-62 CÓPIA NÃO CONTROLADA...
Page 113 If the toner near end sensor detects there is still no toner in the toner entrance tank, the bottle cap motor closes the toner bottle cap. The system toner end condition continues and printing is not possible. 2-63 A294/A295 CÓPIA NÃO CONTROLADA...
Page 114 Normally the user cannot pull out the bottle until it is empty but the bottle can also be removed when the operation button is pressed (unit off) or when the unit enters Energy Saver or Auto Off modes. During these periods the bottle is released and the plug is replaced. A294/A295 2-64 CÓPIA NÃO CONTROLADA...
Page 115: Supplying Toner To The Development Unit
(toner bank error). The toner supply motor sensor monitors the toner supply motor. If the sensor detects that the motor does not rotate during the toner supply process, the operation panel indicates SC591 (toner supply motor lock). 2-65 A294/A295 CÓPIA NÃO CONTROLADA...
Page 116: Toner Hopper
The toner supply roller clutch [A] transfers drive from the development motor to the toner supply roller gear [D], which drives the agitator gear [E]. For details about Toner Supply Control, see Drum Unit – Toner Supply Control. A294/A295 2-66 CÓPIA NÃO CONTROLADA...
Page 117 Spring [B] applies development bias from the developer rollers to the lower case of the developer unit, to prevent toner from being re-attracted back to the drum. 2-67 A294/A295 CÓPIA NÃO CONTROLADA...
Page 118: Toner Recycling And Waste Toner Collection
The drum motor [C] drives the toner recycling coil [A] via timing belts and gears, whose rotation in return drives the toner collection coil [B] via gears. A294/A295 2-68 CÓPIA NÃO CONTROLADA...
Page 119 [B] for recycling. This toner is dropped into the toner entrance tank and mixed with fresh toner from the toner bottle. The toner bank motor [C] drives the toner transport coil via the toner supply coil clutch [D]. 2-69 A294/A295 CÓPIA NÃO CONTROLADA...
Page 120 (3,000 to 4,000 k) can be made before the waste toner bottle becomes full. If the waste toner bottle is not properly placed inside the toner bank, the operation panel LCD indicates SC496 (toner collection bottle error). The toner collection bottle sensor [I] detects this condition. A294/A295 2-70 CÓPIA NÃO CONTROLADA...
Page 121: Paper Feed
If the pick-up roller feeds more than one sheet, the separation rollers rotate in the opposite direction and prevent all but the top sheet from passing through to the registration rollers. 2-71 A294/A295 CÓPIA NÃO CONTROLADA...
Page 122: Drive
[F] and [G]. The 2nd vertical transport clutch has a one-way-gear [H]. This prevents the clutch from slipping when the knob [I] is turned to remove jammed paper in the paper feed tray and vertical transport area. A294/A295 2-72 CÓPIA NÃO CONTROLADA...
Page 123: Paper Lift - Trays 2 & 3
[E] to lift the tray bottom plate [F]. For tray 1, an electrical signal from the tray connector automatically informs the cpu when the tray has been placed in the machine. 2-73 A294/A295 CÓPIA NÃO CONTROLADA...
Page 124 When the tray is drawn out of the feed unit, the lift motor coupling gear [F] disengages the pin [G] of the lift arm shaft [H], then the tray bottom plate [I] drops under its own weight. A294/A295 2-74 CÓPIA NÃO CONTROLADA...
Page 125: Pick-Up And Feed - Trays 1 To 3
Then the gear [A] transmits this drive to the pick-up [C], paper feed [D] and separation [E] rollers via gears and the paper feed clutch [F]. The gear [A] also transmits this drive to the vertical transport roller [G] via gears and the vertical transport clutch [H]. 2-75 A294/A295 CÓPIA NÃO CONTROLADA...
Page 126 When the paper feed sensor [H] detects the leading edge of the paper, the pick-up solenoid de-energizes to lift the pick-up roller [F], and the vertical transport clutch [I] energizes to feed the paper to the vertical paper feed section. A294/A295 2-76 CÓPIA NÃO CONTROLADA...
Page 127 After paper feed and the paper feed clutch tuns off, the paper feed motor still turns the separation roller [A] in reverse. The separation roller, still contacting the feed roller, turns the feed roller in reverse for 100 ms. Then the separation solenoid turns off. 2-77 A294/A295 CÓPIA NÃO CONTROLADA...
Page 128 PAPER FEED Paper Skew Prevention A294D603.WMF The paper press arms [A] on each side press down both sides of the paper, especially if the paper is curled. This helps to prevent paper skew or jams. A294/A295 2-78 CÓPIA NÃO CONTROLADA...
Page 129: Remaining Paper/ Paper End Detection - Trays 2 & 3
[C] is deactivated. When the paper tray runs out of paper, the paper end feeler drops into the cutout [D] in the tray bottom plate and the paper end sensor is activated. 2-79 A294/A295 CÓPIA NÃO CONTROLADA...
Page 130: Paper Size Detection - Trays 2 & 3
UP mode. Metric version Inch version Main Scan Direction 148 mm ~ 297 mm 5.9" ~ 11.8" Sub Scan Direction 210 mm ~ 432 mm 8.3" ~ 17.0" A294/A295 2-80 CÓPIA NÃO CONTROLADA...
Page 131: Tray Lock - Trays 2 & 3
2.8.7 TRAY LOCK – TRAYS 2 & 3 A294D618.WMF When the tray is placed in the paper feed unit, the lock lever [A] drops behind the lock plate [B] on the support bracket to lock the tray in the proper position. 2-81 A294/A295 CÓPIA NÃO CONTROLADA...
Page 132: Tandem Feed - Tray 1
Normally both the right and the left trays are joined together. However, during copying, if there is no paper in the left tray, the left tray can be pulled out to load paper. During that time, the right tray stays in the machine and paper feed continues. A294/A295 2-82 CÓPIA NÃO CONTROLADA...
Page 133 When the tandem tray is drawn out fully, the projection [D] pushes up the left tray lock lever [A] so that both trays separate for easier paper loading. 2-83 A294/A295 CÓPIA NÃO CONTROLADA...
Page 134 When removing the tray, the coupling gear [B] separates from the pin [C], so that the tray bottom plate moves downward. The tray lowers until the actuator activates the tray down sensor [L]. The damper [M] lets the tray bottom plate drop down slowly. A294/A295 2-84 CÓPIA NÃO CONTROLADA...
Page 135 There is also a paper end sensor for the 1st tray, which works in the same way as the sensor in the 2nd and 3rd trays. 2-85 A294/A295 CÓPIA NÃO CONTROLADA...
Page 136 Then, when the side fence closed sensors [D] actuate, the LCD displays a message advising the user to load some paper into the left side of the tandem tray. A294/A295 2-86 CÓPIA NÃO CONTROLADA...
Page 137 [D], the rear fence drive motor turns clockwise until the actuator activates the rear fence HP sensor [E]. While the rear fence is moving, the left 1st tray lock solenoid [F] turns on and the lock lever [G] locks the left tray. 2-87 A294/A295 CÓPIA NÃO CONTROLADA...
Page 138 When the feed tray is set in the paper feed unit, the side-to-side positioning plate [C] presses the feed tray against the stopper [D]. By moving the positioning plate, the tray position can be changed to adjust the side-to-side registration. A294/A295 2-88 CÓPIA NÃO CONTROLADA...
Page 139: Vertical Transport
The vertical transport guides [C] can be opened to remove jammed paper in the vertical transport area. 2-89 A294/A295 CÓPIA NÃO CONTROLADA...
Page 140: Paper Registration
The registration and relay rollers feed the paper to the image transfer section. The registration sensor is also used for paper misfeed detection. A294/A295 2-90 CÓPIA NÃO CONTROLADA...
Page 141 There is a paper dust remover [F] at the center of the upper registration roller [D]. This is in line with the feed rollers, where most paper dust is generated. NOTE: Clean the dust remover every PM visit. 2-91 A294/A295 CÓPIA NÃO CONTROLADA...
Page 142 The user must close this guide plate manually after removing the jam, To prevent the guide plate from being left open, if the guide plate position sensor is activated, copying is disabled and a caution is displayed on the LCD panel. A294/A295 2-92 CÓPIA NÃO CONTROLADA...
Page 143 Removes toner remaining on the transfer belt to prevent the rear side of the paper from getting dirty. [F]: Transfer belt cleaning blade Removes toner from the transfer belt. Any toner that is not removed by this blade is removed by the cleaning roller [E]. 2-93 A294/A295 CÓPIA NÃO CONTROLADA...
Page 144: Image Transfer And Paper Separation
Then a positive charge is applied to the transfer bias roller [F] and transfer belt bias brush to attract the negatively charged toner [G] from the drum. It also attracts the paper and separates it from the drum. A294D648.WMF A294/A295 2-94 CÓPIA NÃO CONTROLADA...
Page 145: Image Transfer And Paper Separation
A294D503.WMF voltage, the bias brush [E] has been incorporated near the nip between drum and belt. This ensures that enough transfer current is applied for this machine, which has a higher copy volume. 2-95 A294/A295 CÓPIA NÃO CONTROLADA...
Page 146: Transfer Belt Unit Lift
(for example V , ID sensor patterns developed during process control data initial setting) from being transferred onto the transfer belt. 3. To prevent drum characteristics from being changed by remaining in contact with the rubber belt. A294/A295 2-96 CÓPIA NÃO CONTROLADA...
Page 147: Paper Transportation And Belt Drive
The tapered parts [D] at both ends of the roller [E] help keep the transfer belt [F] in the center, so that it does not run off the rollers. A294D511.WMF 2-97 A294/A295 CÓPIA NÃO CONTROLADA...
Page 148: Transfer Belt Cleaning
The surface of the transfer belt is coated to make it smooth and prevent the transfer belt from flipping the cleaning blade. The toner collection coil [D] transports toner cleaned off the transfer belt to the waste toner collection bottle (see Toner Supply and Recycling for more on this). A294/A295 2-98 CÓPIA NÃO CONTROLADA...
Page 149: Toner Collection
Transfer belt drive is transmitted to the toner collection coil [A] through idle gears [B]. The toner collection coil [C] transports the collected toner to the toner recycling unit [D] and from there it goes to the waste toner collection bottle. See Toner Supply and Recycling for details. 2-99 A294/A295 CÓPIA NÃO CONTROLADA...
Page 150: Transfer Anti-Condensation Heater
The transfer anti-condensation heater [A] is located under the transfer belt unit. It turns on when the main switch is off to prevent moisture from forming on the transfer belt. The heater is included in the machine at the factory, but the connector is not connected. A294/A295 2-100 CÓPIA NÃO CONTROLADA...
Page 151: Fusing
There are three identical fusing lamps [C] inside the hot roller, 530 W each for the A294 and 630W each for the A295. They are turned on and off to maintain the ⇒ standby temperature, 173°C for the A294 and 178°C for the A295. During a copy cycle, the operating temperature is maintained at 188°/183°C for the A294 and...
Page 152: Fusing Entrance Guide
Use the screws to adjust the guide plate position. Since there are very few reasons to change the guide plate position, there is no guide plate position adjustment lever for customer use. A294/A295 2-102 CÓPIA NÃO CONTROLADA...
Page 153: Fusing Unit Drive
[C], which drives the hot roller gear [D]. Rotation passes from the gear [C] through an idle gear to the exit roller drive section. The pressure roller is driven by the friction between the hot and pressure rollers. 2-103 A294/A295 CÓPIA NÃO CONTROLADA...
Page 154: Fusing Lamp Control
During the copy cycle, the three fusing lamps maintain the operating temperature of 188°/183°C (A294) or 198°/193°C (A295). If they have to turn on, they turn on one at time, with a 1 second interval between each lamp.
Page 155: Oil Supply And Cleaning
⇒ Every 42 s (A294) or 34 s (A295) during A294D553.WMF printing, the oil supply/cleaning web motor turns for 0.8 s to move the oil supply and cleaning web felt.
Page 156: Paper Cooling
This cycle (vaporization → steam transfer → condensation) repeats again and again. The paper cooling pipe transfers heat from the paper to the fins continuously. The paper cooling pipe fan [G] in the duct [H] at the machine rear side cools the fins [F]. A294/A295 2-106 CÓPIA NÃO CONTROLADA...
Page 157: Fusing Pressure
[E] via the pressure cam [F]. The pressure can be adjusted by using the pressure adjustment screw [G]. The fusing pressure is released by turning the fusing unit release lever counterclockwise. 2-107 A294/A295 CÓPIA NÃO CONTROLADA...
Page 158: Hot Roller Stripper Release
CÓPIA NÃO CONTROLADA FUSING 2.10.8 HOT ROLLER STRIPPER RELEASE A294D008.WMF For easier jam removal, when the hot roller stripper unit [A] is opened, the stripper pawls [B] turn clockwise to expand the jam removal area. A294/A295 2-108 CÓPIA NÃO CONTROLADA...
Page 159: Paper Exit/Duplex
[B] before being fed out. If the user selects duplex mode, the page is directed to the duplex tray [C] after inverting, and back to the machine for printing the second side. 2-109 A294/A295 CÓPIA NÃO CONTROLADA...
Page 160: Paper Exit Mechanism
To feed the printed page from the fusing unit straight through to the output tray or finisher, the inverter gate solenoid [C] is energized to lower the inverter junction gate [D]. To feed the page to the inverter and duplex unit, the solenoid stays off. A294/A295 2-110 CÓPIA NÃO CONTROLADA...
Page 161: Duplex Drive Mechanism
The inverter exit roller clutch engages the drive (i.e., the roller turns) while the clutch is not energized. This clutch disengages the drive when the clutch is turned on. This prevents the clutch from being energized for a long time. 2-111 A294/A295 CÓPIA NÃO CONTROLADA...
Page 162: Inverter
When the paper is delivered to the jogger fences, the jogger fences move inward to square the paper. After this, the jogger fences move back to the previous position (15 mm away from the paper). A294/A295 2-112 CÓPIA NÃO CONTROLADA...
Page 163 The paper is fed from the reverse roller to the inverter exit roller [F]. After the paper starts to be fed by the inverter exit roller, the reverse trigger roller and inverter guide plate move back up. 2-113 A294/A295 CÓPIA NÃO CONTROLADA...
Page 164: Duplex Tray Feed Mechanism
[C], 2 [D], 3 [E], and the duplex feed roller [F]. If duplex mode is not selected, the solenoid does not switch the duplex inverter junction gate, and the paper goes to the output tray or finisher face down. A294/A295 2-114 CÓPIA NÃO CONTROLADA...
Page 165: Basic Duplex Feed Operation
A294D550.WMF 1. The first 4 sheets are fed and printed. 1) 1st sheet printed (1st page) 2) 2nd sheet printed (3rd page) 3) 3rd sheet printed (5th page) 4) 4th sheet printed (7th page) A294D807.WMF 2-115 A294/A295 CÓPIA NÃO CONTROLADA...
Page 166 A294D809.WMF 7. The 5th sheet (9th page) is directed to the duplex unit. 8. The 6th sheet (11th page) is fed. 9. The back of the 2nd sheet is printed (4th page). A294D810.WMF A294/A295 2-116 CÓPIA NÃO CONTROLADA...
Page 167 (if shaded, this indicates the second side). ⇒ ⇒ ⇒ ⇒ ⇒ ⇒ ⇒ A294D551.WMF 1. The first 2 sheets are fed and printed. 1) 1st sheet printed (1st page) 2) 2nd sheet printed (3rd page) A294D857.WMF 2-117 A294/A295 CÓPIA NÃO CONTROLADA...
Page 168 A294D861.WMF 10. The 3rd sheet (5th and 6th pages printed) is fed out. 11. The back of the 4th sheet (8th page) is printed. 12. The 4th sheet (7th and 8th pages) is fed out. A294/A295 2-118 CÓPIA NÃO CONTROLADA...
Page 169: Energy Saver Modes
The way that the machine operates depends on the combination of installed equipment (copier only, copier/printer). 2-119 A294/A295 CÓPIA NÃO CONTROLADA...
Page 170: Energy Saver (Panel Off) Mode
The recovery time from energy saver to rise the fusing temperature is about 0 s. NOTE: The polygon motor needs 10 seconds to reach the correct speed. Operation Energy Fusing Main Power Mode System +5 V Switch Saver LED Temp. Energy Saver 173°C A294/A295 2-120 CÓPIA NÃO CONTROLADA...
Page 171: Low Power Mode
The machine returns to standby mode in exactly the same way as from energy saver (panel off) mode. Recovery Operation Energy Fusing Main Power System +5 V Time Switch Saver LED Temp. About 143°C 40 seconds 2-121 A294/A295 CÓPIA NÃO CONTROLADA...
Page 172: Off Mode
If the machine receives print data from a PC, the fusing temperature rises to print the data. However, the operation panel stays off. After completing the print job, the machine returns to off mode (sleep mode). A294/A295 2-122 CÓPIA NÃO CONTROLADA...
Page 173 If a weekly timer code is set: When print data is sent from a PC, the printer stays off-line. After someone enters the weekly timer code, the printer will go on-line and print the data. 2-123 A294/A295 CÓPIA NÃO CONTROLADA...
Page 174 A294D649.WMF Anti-condensation Heaters All the anti-condensation heaters are unplugged. The transfer anti-condensation (drum) heater is still on the machine. However, the tray heaters and optics anti- condensation heater are not mounted on the machine (option). A294/A295 2-124 CÓPIA NÃO CONTROLADA...
Page 175: Others
The status indicator on the top of the operation unit shows the condition of the machine as follows: • Off: The machine is ready. • Green (lights): Copying • Green (blinks): Scanning originals • Red (blinks): Toner is running out. • Red (lights): The machine has a problem. 2-125 A294/A295 CÓPIA NÃO CONTROLADA...
Page 176: Door Safety Switch Lock Tools
1. When the inner cover is installed, the front door safety switches can be held as shown in the illustration [A]. 2. When the inner cover is removed, the front door safety switches can be held as shown in the illustration [B]. A294/A295 2-126 CÓPIA NÃO CONTROLADA...
Page 177: Hdd Control
The hard disks used for both models are as follows: Seek time Rotation Velocity Capacity ⇒ A294 (85 CPM) 9.5 ms 5400 rpm 4.3GB A295 (105 CPM) 8.5 ms 7200 rpm 6.8GB...
Page 178 The stamp data must be reinstalled using a flash memory card after one of the hard disks is replaced. Refer to Stamp Data Installation in section 4. A294/A295 2-128 CÓPIA NÃO CONTROLADA...
Page 179: Data Path Through The Interface Board
GACNIU_B: An ASIC which handles the data transmission between the memories in the SICU and CD-ROM reader/writer or the connect copy interface. LVDS: A noise-resistant interface IMACB: AN ASIC which controls data memory A CPU which controls the SCSI controller 2-129 A294/A295 CÓPIA NÃO CONTROLADA...
Page 180 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 181: Installation
CÓPIA NÃO CONTROLADA INSTALLATION CÓPIA NÃO CONTROLADA...
Page 182 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 183: Installation Procedure
1. Front to back: Within 5 mm (0.2") of level 2. Right to left: The machine legs may be raised or lowered in order to level the machine. Set a carpenter’s level on the exposure glass. A294/A295 CÓPIA NÃO CONTROLADA...
Page 184: Minimum Space Requirements
2. Avoid multi-wiring. 3. Do not set anything on the power cord. Input voltage level: North America (NEMA 6-20R Receptacle) 220~240V (+/-10%), 60 Hz: More than 10A (A294) 220~240V (+/-10%), 60 Hz: More than 12A (A295) ⇒ Europe/Asia (Receptacle market specific)
Page 185: Copier (A294)
CÓPIA NÃO CONTROLADA COPIER (A294) 3.2 COPIER (A294) 3.2.1 ACCESSORY CHECK A294I001.WMF Check the quantity and condition of the accessories in the box against the following list: Description Quantity 1. Operation Unit ................1 2. Upper Cover - Operation Unit Holder ........1 3.
Page 186 CÓPIA NÃO CONTROLADA COPIER (A294) 13. Tapping Screw - M4 x 8............. 25 14. Tapping Screw - M4 x 12............2 15. Philips Pan Head Screw - M4 x 6 ..........1 16. Paper Size Decal............... 1 17. Decal – Face Up................ 1 18.
Page 187: Installation Procedure
CÓPIA NÃO CONTROLADA COPIER (A294) 3.2.2 INSTALLATION PROCEDURE CAUTION Rating Voltage for Peripherals Make sure to plug the cables into the correct sockets. “Rating Voltage of Output Connector for Accessory: Max. DC 24 V” FINISHER “Rating Voltage of Output Connector for Accessory: Max.
Page 188 CÓPIA NÃO CONTROLADA COPIER (A294) Since the installation procedure is not packed with the copier as an accessory, always bring this manual with you. A294I024.WMF A294I006.WMF A294I004.WMF A294I005.WMF CAUTION Keep the power cord unplugged when starting the following procedure. NOTE: 1) Keep the shipping retainers after installing the machine. They will be reused if the machine is moved to another location in the future.
Page 189 CÓPIA NÃO CONTROLADA COPIER (A294) A294I003.WMF A294I002.WMF A294I007.WMF A294I009.WMF 3. Pull out the tandem tray and remove the tray lock plate [A] (1 screw) and 1 cushion between trays. 4. Pull out the foam cushion between trays 2 and 3.
Page 190 CÓPIA NÃO CONTROLADA COPIER (A294) A294R520.WMF A294I010.WMF 9. Remove the drum stay knob [G] and the drum stay (turn the knob clockwise to remove it). 10. Remove the tape and foam cushion from fusing unit. 11. Disconnect the two connectors [A].
Page 191 CÓPIA NÃO CONTROLADA COPIER (A294) A294I012.WMF A294I013.WMF A294I014.WMF A294I015.WMF 19. Remove the right upper cover [A] (4 screws). 20. Pass the harness through the operation unit arm [B], and install the arm as shown (9 screws). 21. Connect the 2 connectors [C] of the operation unit.
Page 192 CÓPIA NÃO CONTROLADA COPIER (A294) A294I017.WMF A294I016.WMF A294I506.WMF A294I018.WMF 25. Install the upper [A] (3 screws) and lower [B] (3 screws) covers of the operation unit holder. 26. Set the dust filter [C] as shown. 27. Set the optics dust filter [D] as shown.
Page 193 CÓPIA NÃO CONTROLADA Rev. 04/2000 COPIER (A294) A294I010 WMF 33. When the machine is ready, enter SP mode as follows: 1) Press the clear modes key. 2) Enter “107”. 3) Hold down the clear key for more than 3 seconds.
Page 194 CÓPIA NÃO CONTROLADA Rev. 04/2000 COPIER (A294) NOTE: Early production units used snap rings to hold the gear in place. ⇒ Please note the following “Necessary Actions” following each activity listed in the table below: Service Activity Necessary action for...
Page 195: Finisher Installation (B302)
8. Tapping Screw - M3 x 6............. 4 9. Tapping Screw - M3 x 8............. 4 10. Tapping Screw - M4 x 14............4 11. Tapping Screw - M4 x 8............. 2 12. Installation Procedure..............1 3-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 196: Installation Procedure
(2 screws) securing the stapler unit. 3. Install the front joint bracket [B] and rear joint bracket [C] (two M4 x 14 screws each) on the left side of the copier. 4. Remove the connection plate [D]. A294/A295 3-14 CÓPIA NÃO CONTROLADA...
Page 197 NOTE: The edge of the rear tray should be aligned with the edge of the finisher (as shown). 7. Attach the cushion [C] to the right side of the upper cover. 8. Install the entrance guide plate [D] (two M3 x 6 screws). 3-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 198 [C]. 11. Secure the locking lever (1 screw) and close the front door. 12. Install the shift tray [D] (four M3 x 8 screws). 13. Connect the finisher cable [E] to the copier. A294/A295 3-16 CÓPIA NÃO CONTROLADA...
Page 199: Accessory Check
4. Decal - Paper Size..............1 5. Decal - Tab Paper End Fence ........... 1 6. Tab Paper End Fence ............... 1 7. Philips Screw - M4 x 8 ............... 1 8. Installation Procedure (English)..........1 3-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 200 Unplug the power cord before starting the following procedure. 1. Remove the strips of tape on the covers (shown in the top position of the illustration). 2. Open the LCT left door and remove the strips of tape holding the levers. A294/A295 3-18 CÓPIA NÃO CONTROLADA...
Page 201 8. Connect the four connectors [G] and secure the grounding wire [H] (1 screw). 9. Align the LCT on the joint pins, and lock it in place with the locking lever. 10. Insert the leveling shoes under the leveling feet and level the LCT. 3-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 202 CÓPIA NÃO CONTROLADA Rev. 10/2000 LCT INSTALLATION (B303) ⇒ This page intentionally left blank. 3-19A A294/A295 CÓPIA NÃO CONTROLADA...
Page 203: Installation Procedure
5. Run the heater harnesses [E and F] through the harness clamps. Insert the connectors into the connector bracket holes shown below. 6. Connect the interface harness connectors [G and H] to the connectors that were just inserted into the connector bracket holes (step 5). 3-19B A294/A295 CÓPIA NÃO CONTROLADA...
Page 204 7. Replace the wire saddle with the new one ([C] P/N: 11050292), which is included in the optional tray heater kit. 8. Run the connecting harness [A] as shown. 9. Connect the connector [D] of the interface harness to the mainframe interface. 10. Return all parts. 3-19C A294/A295 CÓPIA NÃO CONTROLADA...
Page 205 Caution: Before the heater AC harness connector is plugged in, be sure to turn off the main switch and unplug the copier power cord. AC Drive Board Heater AC harness connector NOTE: The heater AC harness connector is hung on the clamp under the AC drive board. A294/A295 3-19D CÓPIA NÃO CONTROLADA...
Page 206: Punch Unit Installation (A812)
6. Spring ..................1 7. Hopper..................1 8. Tapping Screw - M4 x 10............2 9. Screw with Flat Washer - M4 x 6 ..........1 10. Sensor Bracket ................1 11. Punch Position Decal ..............1 A294/A295 3-20 CÓPIA NÃO CONTROLADA...
Page 207: Punch Unit Installation
Unpack the punch unit and remove the shipping retainers [A] (4 screws) and [B] (1 screw) 1. Remove the inner cover [C] of the finisher and remove the caps [D]. 2. Remove the rear cover of the finisher (2 screws) and remove the transport guide plate [E] (4 screws). 3-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 208 5. Install the punch unit [B] and secure it with a long stepped screw [C]. 6. Install the punch unit knob [D] (1 screw). 7. Secure the rear of the punch unit (2 screws [E]). A294/A295 3-22 CÓPIA NÃO CONTROLADA...
Page 209 8. Install the sensor bracket [A] (1 short stepped screw, 1 spring). 9. Connect the cables [B] as shown. 10. Slide the hopper [C] into the finisher. 11. Reassemble the finisher and attach it to the copier. Then check the punch unit operation. 3-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 210: A3/Dlt Tray (B331)
3.6.1 ACCESSORY CHECK B331I001.WMF Check the quantity and condition of the accessories in the box against the following list: Description Quantity 1. A3/DLT Tray ................1 2. Short Connector ................ 1 3. Paper Size Decal............... 1 A294/A295 3-24 CÓPIA NÃO CONTROLADA...
Page 211: Installation Procedure
2. Draw out the tandem feed tray [B] fully to separate the right tandem tray [C] from the left. 3. Push in the right tandem tray. 4. Remove the left tandem tray [D] (5 screws). 3-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 212 5. Remove the right tandem tray [A] (2 screws). 6. Remove the front cover [B] (2 screws). 7. Remove the safety switch holders [C] (1 screw each). 8. Connect the short connector [D] to the terminal for the right tandem tray as shown. A294/A295 3-26 CÓPIA NÃO CONTROLADA...
Page 213 9. Install the A3/DLT tray [A] using the screws removed in steps 4 and 5. 10. Install the front cover [B] and safety switch holders [C] removed in steps 6 and 11. Access SP5-019-001, and change the paper size setting to the size required by the user. 3-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 214: Key Counter Installation
7. Install the key counter assembly [H] (1 screw). 8. Instruct the user’s key operator to enable the key counter with the user tools (User Tools – System Settings – Count Manager – Key Counter). A294/A295 3-28 CÓPIA NÃO CONTROLADA...
Page 215 10. Remove the LCT right cover [B] (6 screws) and rear cover [C] (3 screws). 11. Install 2 clamps [D] on the right side of the LCT, then set the cable [E] in the clamps. 3-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 216 16. Connect the cable [F] from the LCT to the connector in the copier. Then join the LCT to the copier. 17. Instruct the user’s key operator to enable the key counter with the user tools (User Tools – System Settings – Count Manager – Key Counter). A294/A295 3-30 CÓPIA NÃO CONTROLADA...
Page 217: Interface Board (Cd-Rw/Tandem Copy Kit/Printer Controller)
2) When the cable for the tandem copy kit is installed, connect the cable to the connector [b] and route the cable as shown. Secure the cable with the lower clamp. NOTE: The connector [c] is for the printer controller. 3-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 218: Installation Notes For Cd-R/Rw
The switches on the rear face of the CD-R/RW should not be changed from the factory settings. Switch Setting SCSI ID SW (rotary SW) Keep the setting a "0" Option SW (DIP SW) No. 1 to 4 Should be OFF No. 5 should be ON A294/A295 3-32 CÓPIA NÃO CONTROLADA...
Page 219: Transportation Remarks
6. Turn the toner bank motor and toner supply coil clutch on for 2 minutes using SP5-804-61 and -64 to remove more of the toner. 7. Return all removed parts except for the toner bottles. 3-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 220 7. Turn off the toner supply coil clutch and then the toner bank motor. 8. Return all removed parts. Do not energize the toner bottle for long periods of time, otherwise toner overflow in the toner entrance tank may occur. A294/A295 3-34 CÓPIA NÃO CONTROLADA...
Page 221: Service Tables
CÓPIA NÃO CONTROLADA SERVICE TABLES CÓPIA NÃO CONTROLADA...
Page 222 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 223: General Cautions
If the drum unit is loose, poor contact of the drum connectors may cause electrical noise, resulting in unexpected malfunctions (RAM data change is the worst case). 3. To prevent drum scratches, remove the development unit before removing the drum unit. A294/A295 CÓPIA NÃO CONTROLADA...
Page 224: Transfer Belt Unit
3. The polygon mirror and F-theta lenses are very sensitive to dust. Do not open the optical housing unit. 4. Do not touch the glass surface of the polygon mirror motor unit with bare hands. A294/A295 CÓPIA NÃO CONTROLADA...
Page 225: Charge Corona
9. When replacing the TD sensor, the developer should be replaced and then the TD sensor initial setting procedure (SP2-801) should be done, followed by process control initialization (SP2-962). A294/A295 CÓPIA NÃO CONTROLADA...
Page 226: Cleaning
4.1.11 USED TONER 1. We recommend checking the amount of used toner at every EM. 2. Dispose of used toner in accordance with local regulations. Never throw toner into an open flame, for toner dust may ignite. A294/A295 CÓPIA NÃO CONTROLADA...
Page 227: Service Program Mode
3 seconds. 2) A menu of SP modes is displayed on the LCD. A294M001.PCX NOTE: The installed applications appear as Copy SP and Printer SP. If the printer application is not installed, its name does not appear. A294/A295 CÓPIA NÃO CONTROLADA...
Page 228 SERVICE PROGRAM MODE Rev. 9/2001 3) Touch the application which you need. Then, the application’s SP mode display will appear, as shown. A294M002.PCX Exiting SP mode 1) Touch the “Exit” keys to return to the standby mode display. A294/A295 CÓPIA NÃO CONTROLADA...
Page 229 Accessing Copy Mode from within an SP Mode 1) Touch the “Copy Mode” key. A294M003.PCX 2) Select the appropriate copy mode and make trial copies. 3) To return to the SP mode, touch the “SP mode” key. A294M004.PCX A294/A295 CÓPIA NÃO CONTROLADA...
Page 230 CÓPIA NÃO CONTROLADA SERVICE PROGRAM MODE Rev. 9/2001 A294/A295 CÓPIA NÃO CONTROLADA...
Page 231 Input the required program number. Touch Panel 1) Touch the 1st level program. A294M002.PCX 2) Touch the 2nd level program. A294M003.PCX NOTE: A “*” mark indicates that there are 3rd level programs. 3) Touch the 3rd level program. A294/A295 CÓPIA NÃO CONTROLADA...
Page 232 CÓPIA NÃO CONTROLADA SERVICE PROGRAM MODE Rev. 9/2001 A294M005.PCX 4-10 A294/A295 CÓPIA NÃO CONTROLADA...
Page 233 NOTE: 1) If you forget to touch the “Start” key or OK key, the previous value remains. 2) Change between “+” and “–” using the “•” key before entering the required value. 3. Exit SP mode. 4-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 234: Service Program Mode Tables
NVRAM on the SICU (S) or BCU (B). If you do a RAM reset, all these SP modes will be reset to their factory settings. 4) [A294 I], [A295 I], [A294 II] and [A295 II] in the Settings column mean the following product types: [A294 I]: Existing 85 cpm model.
Page 235 +4 ~ –4 rear fences. 0.5 mm/step 0.0 mm 1-103 Fusing Idling After Low Power Mode 0: Not done Selects whether fusing idling is done or not when recovering from the low power mode. 1: Done 4-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 236 Mode No. Function Settings (Class 1, 2 and 3) 1-105 Fusing Temperature Adjustment Fusing Adjusts the fusing temperature for stand- [A294 I & II] Temperature in 168 ~ 178 Waiting 1°C/step Condition 173°C [A295 I & II] 173 ~ 178 1°C/step...
Page 237 Web Motor Change the interval of copy operation time Drive Interval after which the web motor is driven 15 ~ 130 1 s/step [A294 I] 42 s [A295 I] 34 s [A294/A295 II] 3 ~ 130 1 s/step [A294 II]...
Page 238 –600 ~ –1,300 (Auto Process during copying when auto process control 10 V/step Control ON) is switched on. [A294/A295 I] This voltage changes every time auto –1,000 V process control starts up (every time the [A294/A295 II] machine is switched on) –950 V...
Page 239 Development Bias Adjustment Image Area Adjusts the development bias for copying. –200 ~ –700 10 V/step This can be adjusted as a temporary [A294/A295 I] measure if faint copies appear due to an –530 V aging drum. [A294/A295 II] –650 V...
Page 240 Adjusts the toner supply rate from the 100 ~ 2,000 hopper. 10 mg/s/step [A294 I & II] Increasing this value reduces the toner 800 mg/s supply roller clutch on time. Use a lower value if the user tends to make lots of [A295 I &...
Page 241 1st Copy Side 1 µA/step belt during copying on the 1st side of the paper. [A294 I & II] 120 µA If the user uses thicker paper, the current may have to be increased to ensure [A295 I & II] sufficient transfer of toner.
Page 242 Transfer Current Adjustment Thick Paper Adjusts the current applied to the transfer 10 ~ 200 1 µA/step belt during copying on thick paper. [A294 I & II] See above. 120 µA [A295 I & II] 140 µA OHP Sheet Adjusts the current applied to the transfer 10 ~ 200 1 µA/step...
Page 243 EM, clean the wire with this mode. 2-804 Charge Corona Cleaner Setting Corona Wire Selects when automatic corona wire [A294/A295 I] Cleaner cleaning is done. 0: Not done Operation 0: Corona wire cleaning is not done. 1: Done...
Page 244 Lb (On/Off Adjusts the transfer current on/off exchange exchange timing. 0 ~ +60 timing) (A294/A295 II models only) 1 mm/step +45 mm Lc (OFF) Adjusts the transfer current off timing –30 ~ +30 (for example: –5 mm is 5 mm after the 1 mm/step trailing edge).
Page 245 If Periodical Auto Process Control (SP2- 966) is used, this adjustment is done also after the auto process control is finished. 4-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 246 Toner Suction System [A294/A295 I] Displays whether the toner suction system is installed in order to distinguish between 0: Not installed A294/A295 I and A294/A295 II. [A294/A295 II] 1: Installed 2-971 Collected Toner Level Check Check this mode when “Waste toner full” pop-up message comes up or “Near full”...
Page 247 B Displays the drum potential. Half Tone V Displays the drum potential in areas illuminated by the laser during LD power adjustment (auto process control). Displays the charge grid voltage which resulted from the latest V adjustment. 4-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 248 0: Not performed. The target value of the V performed correction is “SP2-001-7 value + 50”. 1: Performed (A294/A295 II models only) 3-903 Correction Counter Adjusts the starting point for the V 0 ~ 999 Correction. 1 k prints/step...
Page 249 Displays whether or not the standard white Adjusted Not adjusted level adjustment has been done. Standard Corrects the standard white level from the Start white plate. This SP mode is for factory use only. Do not use this SP mode. 4-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 250 EVEN channel of the last side 1/step Last Side E-ch after adjusting the white level at power-up. S This SP mode is for designer use only. Do not use this SP mode. 4-28 A294/A295 CÓPIA NÃO CONTROLADA...
Page 251 Checks the AGC gain value of the white 0 ~ 255 Adjustment - level for the ODD channel of the last side 1/step L/O ch after adjusting the white level at power-up. (Memory) This SP mode is for designer use only. 4-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 252 1/step This SP mode is for designer use only. E/O Adjustment Counts the errors during the automatic 0 ~ 255 Error Count scanner adjustment. 1/step This SP mode is for designer use only. 4-30 A294/A295 CÓPIA NÃO CONTROLADA...
Page 253 Photo Mode 0: SP4-903-36 1: SP4-903-37 If “0” is selected, the image will be sharper. However, dot screen areas will be faint. This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 254 Text direction for 25% ~ 49% magnification for 1/step (25% ~ 49%) text mode. Sub Scan 0: Weak 6: Strong Direction S This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-32 A294/A295 CÓPIA NÃO CONTROLADA...
Page 255 0 ~ 6 Text direction for 155% ~ 256% reduction for 1/step (155% ~ 256%) text mode. Main Scan 0: Weak 6: Strong Direction This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 256 0 ~ 6 photo mode, if MTF is enabled for this 1/step in Photo mode mode with SP4-903-9. 0: Weak 6: Strong This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-34 A294/A295 CÓPIA NÃO CONTROLADA...
Page 257 50% ~ 154% magnification for 1/step (50% ~ 154%) text areas in text/photo mode. Main Scan 0: Weak 6: Strong Direction This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-35 A294/A295 CÓPIA NÃO CONTROLADA...
Page 258 257% ~ 400% 1/step (257% ~ 400%) magnification for text areas in text/photo Sub Scan mode. Direction 0: Weak 6: Strong This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-36 A294/A295 CÓPIA NÃO CONTROLADA...
Page 259 Selects the independent dot erase level for 0 ~ 14 Dot Erase - text/photo mode. 1/step Text/Photo A larger number erases more dots. 0 Mode means disabled. Refer to “Detailed Sectional Description – Independent Dot Erase” for details. 4-37 A294/A295 CÓPIA NÃO CONTROLADA...
Page 260 SP4-903-65.) 2: Strong background erase (the pixel is changed to 0 if it is below the threshold level selected with SP4-903-65.) This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-38 A294/A295 CÓPIA NÃO CONTROLADA...
Page 261 SP4-903-69. 2: Strong background erase (the pixel is changed to 0 if it is below the threshold level selected with SP4-903-69. This SP is ignored unless the user selects ‘Service Mode’ in UP mode. 4-39 A294/A295 CÓPIA NÃO CONTROLADA...
Page 262 0 ~ 5 Correction - thickness correction is applied for a pixel. If 1/step Generation a higher number is selected, the Mode - Sub effectiveness of the line thickness Scan Direction correction selected with SP4-903-75 becomes stronger. 4-40 A294/A295 CÓPIA NÃO CONTROLADA...
Page 263 Correction - thickness correction is applied for a pixel. If 1/step Threshold in a higher number is selected, the Text Mode - effectiveness of the line thickness Sub Scan correction selected with SP4-903-78 Direction becomes stronger. 4-41 A294/A295 CÓPIA NÃO CONTROLADA...
Page 264 ‘Service Mode’ for 1/step Selection in Text/Photo mode is selected. Text/Photo 0: Scanner gamma for ‘Photo Priority’ is Mode Sused. 1: Scanner gamma for ‘Normal’ is used. 2: Scanner gamma for ‘Text Priority’ is used. 4-42 A294/A295 CÓPIA NÃO CONTROLADA...
Page 265 Thin Line Mode Selects thin line mode level in laser writing 0 ~ 2 in Laser Writing for generation mode. - Generation 0: None 1: Thin Line Mode - Weak 2: Thin Line Mode – Strong 4-43 A294/A295 CÓPIA NÃO CONTROLADA...
Page 266 On. But operator can manually set the ADS mode to Off. 4-909 IPU Setting-2 Designer use only. Do not change the value. 4-910 Data Compression ABS Core Designer use only. Do not change the value. 4-44 A294/A295 CÓPIA NÃO CONTROLADA...
Page 267 HDD 1 Model Displays the model name of HDD 1. Name Display If the HDD is not installed or the HDD connector is not connected, SC360 will be displayed. However, the user can make single copies. 4-45 A294/A295 CÓPIA NÃO CONTROLADA...
Page 268 Forced HDD Selection Designer use only. Do not change this 0: Default setting. 1: HDD1 2: HDD2 4-915 CD-RW CD-RW Model Displays the CD-RW model name. Name Display CD-RW F/W Displays the CD-RW firmware version. Version Display 4-46 A294/A295 CÓPIA NÃO CONTROLADA...
Page 269 1/step 5-118 Disable Copying Disables copying. 0: No 1: Yes The setting should always be “0”. 5-120 Mode Clear-Opt. Controller Removal This function is for Japanese machines 0: Yes only. 1: Stand-by 2: No 4-47 A294/A295 CÓPIA NÃO CONTROLADA...
Page 270 Jam Alarm Japanese version only. Do not change 0: OFF Long Time the setting. 1: ON 5-505 Error Alarm (RDS Function) Japanese version only. Do not change 0 ~ 255 (k) the setting. 30 k 4-48 A294/A295 CÓPIA NÃO CONTROLADA...
Page 271 Before starting the free run, disconnect the finisher connector. Otherwise, a paper jam is detected. 5-803 Input Check Displays the signals received from sensors and switches. See the “Input Check” section for details. 4-49 A294/A295 CÓPIA NÃO CONTROLADA...
Page 272 Counter” key is pressed. 5-921 Optional Counter Output Port Selects whether the 4-pin key counter 0: Off connector is connected to an optional 1: Key counter like key card system, coin lock, etc. Counter CN 4-50 A294/A295 CÓPIA NÃO CONTROLADA...
Page 273 If “1” is selected, when a file in the copy 0: Normal server is selected, the password for that file 1: Display the is displayed. password. 5-965 Delete All the Saved Files Deletes all the copy server files stored in the HDD. 4-51 A294/A295 CÓPIA NÃO CONTROLADA...
Page 274 Displays the signals received from sensors and switches of the ADF. See the “Input Check” section for details. Group 3 Displays the signals received from sensors and switches of the ADF. See the “Input Check” section for details. 4-52 A294/A295 CÓPIA NÃO CONTROLADA...
Page 275 Displays the signals received from sensors and switches of the finisher. See the “Input Check” section for details. Group 3 Displays the signals received from sensors and switches of the finisher. See the “Input Check” section for details. 4-53 A294/A295 CÓPIA NÃO CONTROLADA...
Page 276 7-003 Copy/Printer Counter Total Count Displays the total number of prints in all modes. Copy Displays the total number of prints in copy mode. Printer Displays the total number of prints in printer mode. 4-54 A294/A295 CÓPIA NÃO CONTROLADA...
Page 277 4th Paper Tray 5th Paper Tray 6th Paper Tray Displays the total number of sheets fed from each paper feed tray. 7-205 Total ADF Counter Displays the total number of originals fed by the ADF. 4-55 A294/A295 CÓPIA NÃO CONTROLADA...
Page 278 Total Copies in Multiple Copy Mode 1 to 1 Displays the total number of prints by multiple copy quantity. 1 to 2 ~ 5 1 to 6 ~ 10 1 to 11 ~ 20 1 to 21 ~ 50 4-56 A294/A295 CÓPIA NÃO CONTROLADA...
Page 279 172 HLT Lengthwise S 7-324 Copy Server: Print Job Counter Duplex Job Displays the total number of copy jobs made from the copy server. Sort Job Staple Print Job Punch Print Job Sample Copy First Page Print 4-57 A294/A295 CÓPIA NÃO CONTROLADA...
Page 280 Tandem/Master: Copy Original Mode: Displays the number of copies made in Text each master mode. Original Mode: Text/Photo Original Mode: Photo Original Mode: Generation Original Mode: Pale Punch Repeat Sort Staple Series Erase Duplex Copy 4-58 A294/A295 CÓPIA NÃO CONTROLADA...
Page 281 Thin 7-401 Total SC Counter Displays the total number of service calls that have occurred. 7-403 SC History Latest Displays the latest 10 service call codes. Latest 1st Latest 2nd Latest 3rd Latest 4th 4-58a 4-59 A294/A295 CÓPIA NÃO CONTROLADA...
Page 282 LCT Exit Sensor Relay Sensor Registration Sensor Fusing Exit Sensor Exit Sensor Duplex Entrance Sensor Duplex Transport Sensor 1 Duplex Transport Sensor 2 Duplex Transport Sensor 3 Inverter Tray Paper Sensor Entrance Sensor - Fin. 4-58b 4-60 A294/A295 CÓPIA NÃO CONTROLADA...
Page 283 Inverter Tray Paper Sensor 7-505 Original Jam Counter by Jam Location At Power On ADF Feed-in Detected by the entrance and registration Sensor sensors. ADF Feed-out Detected by the exit and inverter sensors. Sensor 4-58c 4-61 A294/A295 CÓPIA NÃO CONTROLADA...
Page 284 This counter is used for the Japanese Original Paper Standard market only. 7-618 Parts PM Alarm Counter Clear Copy Paper Clears the counter of SPS7-617-1. Standard Original Paper Clears the counter of SPS7-617-2. Standard 4-58d 4-62 A294/A295 CÓPIA NÃO CONTROLADA...
Page 285 7-826 Option Counter Error Counter Total For Japanese version only. Staple 7-827 Option Counter Error Counter Clear For Japanese version only. 7-828 Punch Counter Clear Resets the punch counter (SP7-207) 4-58e 4-63 A294/A295 CÓPIA NÃO CONTROLADA...
Page 286 7-927 Copy Server: Print Job Set Distribution Clear Resets all counters of SP7-327. Start 7-928 Copy Server: Copy Counter Clear – Copy Mode For Japanese machines only. 7-990 SC990 Information S Designer use only. 4-58f 4-64 A294/A295 CÓPIA NÃO CONTROLADA...
Page 287: Test Pattern Printing (Sp2-902)
Grayscale Vertical 20 mm Vertical Line (2-dot) Grayscale Horizontal 40 mm Horizontal Line (2-dot) Grayscale Horizontal 20 mm Grid Pattern (1-dot) White (Out data mask) Full Dot Pattern Grid Pattern (1-dot) (0 ch mode) (Out data overlay) 4-59 A294/A295 CÓPIA NÃO CONTROLADA...
Page 288: Input Check
Not Used Duplex Entrance Sensor Detected Not detected Duplex Jogger H.P. Not detected Detected Duplex Transport 3 Sensor Detected Not detected Duplex Transport 2 Sensor Detected Not detected Duplex Transport 1 Sensor Detected Not detected A294/A295 4-60 CÓPIA NÃO CONTROLADA...
Page 289 Toner Overflow Sensor No lock Lock Toner Bottle Unit Motor Lock No lock Lock Lower Toner Bottle Bottle set Bottle not set Upper Toner Bottle Bottle set Bottle not set Total Counter Set Not set 4-61 A294/A295 CÓPIA NÃO CONTROLADA...
Page 290 Closed Rear Side Fence Closed Open Closed Sensor Rear Side Fence Open Sensor Open Closed Not used Not used Not Used Rear Fence HP Not detected At home position Left Tandem Tray Set Not set A294/A295 4-62 CÓPIA NÃO CONTROLADA...
Page 291 Switch 3 (4th tray) LCT 1st Tray Paper Size See Table 3 Switch 2 (4th tray) LCT 1st Tray Paper Size Switch 1 (4th tray) Not Used Not Used Not Used Not Used Not Used 4-63 A294/A295 CÓPIA NÃO CONTROLADA...
Page 292 Paper 50 ~ 80% sensor 3 (5th tray) LCT 2nd Tray Paper Height — Paper 30 ~ 50% sensor 2 (5th tray) LCT 2nd Tray Paper Height — Paper 0 ~ 30% sensor 1 (5th tray) A294/A295 4-64 CÓPIA NÃO CONTROLADA...
Page 293 16 k sideways 10" x 14"-L (Taiwan Version only) Table 2: 2nd and 3rd Tray Paper Height Sensor Combination Class 3 Paper Height 70 ~ 100% 30 ~ 70% 16, 17 10 ~ 30% 0 ~ 10% 4-65 A294/A295 CÓPIA NÃO CONTROLADA...
Page 294 APS Start Sensor Start DF Position Sensor Down Not Used Not Used Not Used Not Used Not Used Original Length Sensor No original Original detected ADF Feed-out Motor Encoder Pulse ADF Transport Motor Encoder Pulse A294/A295 4-66 CÓPIA NÃO CONTROLADA...
Page 295 Not HP Stack Plate HP Sensor Not HP Pre-stack Tray Paper Sensor Not detected Detected Staple Waste Hopper Sensor Not full Full Stapler Rotation HP Sensor Not HP Upper Tray Paper Limit Sensor Not full Full 4-67 A294/A295 CÓPIA NÃO CONTROLADA...
Page 296: Output Check
2nd Tray Lift Motor Lower Toner Cap Motor 3rd Tray Lift Motor Toner Supply Coil Clutch LCT 1st Tray Lift Motor ID Sensor LED LCT 2nd Tray Lift Motor Transfer Belt Lift Solenoid DISPLAY SCREEN TEXT A294/A295 4-68 CÓPIA NÃO CONTROLADA...
Page 297 Stapler Junction Gate Solenoid Positioning Roller Solenoid Stack Feed-out Motor Shift Motor Stapler Rotation Motor Lower Transport Motor Exit Guide Motor Stack Plate Motor Pre-stack Junction Gate Solenoid Pre-stack Paper Stopper Solenoid Stapler Return Solenoid 4-69 A294/A295 CÓPIA NÃO CONTROLADA...
Page 298: System Parameter And Data Lists (Smc Lists)
SP4-911-1 and 4-912-1 (HDD media tests). Note that the HDD media tests will delete copy server and stamp data on the disks. 9. Check the copy quality and the paper path, and do any necessary adjustments. A294/A295 4-70 CÓPIA NÃO CONTROLADA...
Page 299: Software Reset
1. Make sure that the machine is in the copier standby mode. 2. Press the User Tools key. 3. Hold down the “#” key and touch “Copy Features” key. 4. A confirmation message will be displayed, then press “Yes”. 4-71 A294/A295 CÓPIA NÃO CONTROLADA...
Page 300: Pm Counter
"→ # → $ → % → Hold the key for more than 3 seconds The SP mode menu is displayed. A294M001.PCX 2) Press [PM Counter ] on the display. 3) The following menu appears on the display. A294M013.PCX A294/A295 4-72 CÓPIA NÃO CONTROLADA...
Page 301 When “Parts list for PM yield” is selected in the parts replacement menu, only the parts with [Yes] in the “PM yield” are listed. To clear a counter, press [Clear] on the display. The following appears. A294M016.PCX Then press [Yes] to clear the counter. 4-73 A294/A295 CÓPIA NÃO CONTROLADA...
Page 302 Additionally, the target yield can be changed on this screen. To change the target yield setting, do the following: 1) Press [Change target yield] on the screen. 2) Input the target yield using the ten-key pad. 3) Press the # key. A294/A295 4-74 CÓPIA NÃO CONTROLADA...
Page 303 3. Parts Exceeding Target Yield Only the parts whose counters are exceeding the target yield are displayed. If none of the PM counters is exceeding the target yield, this item cannot be selected from the parts replacement menu. 4-75 A294/A295 CÓPIA NÃO CONTROLADA...
Page 304 5. Clear All PM Settings Clears all the PM counters and returns all the settings (PM parts list and target yield) to the defaults. When this item is selected, the following appears. A294M019.PCX Press [Yes] to clear the settings. A294/A295 4-76 CÓPIA NÃO CONTROLADA...
Page 305 Prints a list of all the PM part counters. When this item is selected, the following appears on the display. A294M010.PCX Press [Print] to print out the counter list. 7. CSS Calling Setting (RSS Function) This function is for Japanese machines only. 4-77 A294/A295 CÓPIA NÃO CONTROLADA...
Page 306: Program Download
BCU. If downloading from the flash card to the SICU failed, an error message appears on the display. At this time, touch the “OK” key to re-try the download. A294/A295 4-78 CÓPIA NÃO CONTROLADA...
Page 307 NOTE: Make sure that the surface printed “A” faces upwards. 3. Turn on the main switch. 4. Select [4. Program Upload (SICU)]. 5. Press [EXEC] on the display. 6. After download is completed, turn the main switch off and remove the flash memory card. 4-79 A294/A295 CÓPIA NÃO CONTROLADA...
Page 308: Nvram Data Download
[4. BCU NVRAM Down load]: (Downloads the data to the NVRAM on the BCU) 6. Press [EXEC] on the display. 7. After the download is completed, turn the main switch off and remove the flash memory card. A294/A295 4-80 CÓPIA NÃO CONTROLADA...
Page 309: Language Data Download
4. (Note that the firmware on the card will be erased by the following steps.) 4. Select [1. Stamp Data Download]. 5. Press [EXEC] on the display. 6. After the download is completed, turn the main switch off and remove the flash memory card. 4-81 A294/A295 CÓPIA NÃO CONTROLADA...
Page 310: User Program Mode
Weekly Timer: Monday AOF (Keep it on) Weekly Timer: Tuesday Memory Allocation Weekly Timer: Wednesday Display/Print Counter Weekly Timer: Thursday Weekly Timer: Friday Weekly Timer: Saturday Weekly Timer: Sunday Key Operator Code for Off Setting A294/A295 4-82 CÓPIA NÃO CONTROLADA...
Page 311 Combine Orig. Shadow Erase Center Erase Width Repeat Separation Line Double Copies Separation Line Combine Separation Line Copy Orientation in Combine Mode Booklet/Magazine Original Orientation Stamp Setting Background No. Background Numbering Size Setting Background Numbering Density 4-83 A294/A295 CÓPIA NÃO CONTROLADA...
Page 312 Separation Sheet Document server Auto File Delete Period List Display Priority Delete All Stored Files Key Operator Tools Print Counter List Count Manager Reset Counters Reset All Register Change Delete User Code Delete All User Codes A294/A295 4-84 CÓPIA NÃO CONTROLADA...
Page 313: Image Quality Setting By Up Mode
Magnification Ratio: 25 ~ 49% MTF Filter Strength Strong Weak UP mode Sharp Normal Pre-filter Type – Text SP4-903-010 Filter Level – Text Main Scan Direction SP4-903-020 Filter Strength – Text Main Scan Direction SP4-903-022 4-85 A294/A295 CÓPIA NÃO CONTROLADA...
Page 314 Pre-filter Type – Text SP4-903-010 Filter Level – Text Main Scan Direction SP4-903-020 Filter Level – Text Sub Scan Direction SP4-903-021 Filter Strength – Text Main Scan Direction SP4-903-022 Filter Strength – Text Sub Scan Direction SP4-903-023 A294/A295 4-86 CÓPIA NÃO CONTROLADA...
Page 315 UP mode Soft Filter Level – Text Main Scan Direction SP4-903-032 Filter Level – Text Sub Scan Direction SP4-903-033 Filter Strength – Text Main Scan Direction SP4-903-034 Filter Strength – Text Sub Scan Direction SP4-903-035 4-87 A294/A295 CÓPIA NÃO CONTROLADA...
Page 316 Main Scan Direction SP4-903-045 Magnification Ratio: 155 ~ 256% MTF Filter Strength Strong Weak Photo Priority UP mode Normal Text Priority Filter Level – Text/Photo Main Scan Direction SP4-903-047 Filter Strength – Text/Photo Main Scan Direction SP4-903-049 A294/A295 4-88 CÓPIA NÃO CONTROLADA...
Page 317 The following table should be used to change the MTF filter strength for Photo mode. MTF Filter Strength Strong Weak UP mode Pre-filter Type – Photo Mode SP4-903-012 MTF Filter – Photo Mode SP4-903-36 MTF Filter Strength – Photo Mode SP4-903-38 4-89 A294/A295 CÓPIA NÃO CONTROLADA...
Page 318 Filter Strength – Pale Mode SP4-903-056 Generation Mode MTF Filter Strength Strong Weak UP mode Sharp Normal Soft Pre-filter Type – Generation Mode SP4-903-016 Filter Level – Generation Mode SP4-903-057 Filter Strength – Generation Mode SP4-903-058 A294/A295 4-90 CÓPIA NÃO CONTROLADA...
Page 319: Leds
✰ — — Feed-out Motor Abnormal ✰ ✰ — Pick-up Motor Abnormal ✰ ✰ — Bottom Plate Motor Abnormal ✰ ✰ ✰ DF Position (Open) ✰ ✰ — APS Sensor ON ✰ — — Normal 4-91 A294/A295 CÓPIA NÃO CONTROLADA...
Page 320: Test Points/Dip Switches/Leds
Free Run: Single-sided original mode without skew correction Free Run: Double-sided original mode Others Do not select “SADF” LED turns on when one of DIP switch turns on. MCU: All the dip switches should be OFF. Do not change the settings. A294/A295 4-92 CÓPIA NÃO CONTROLADA...
Page 321: Test Points
For the charge corona PWM. This VR is secured by paintlock. Do not change the setting in the field. For the grid PWM. This VR is secured by paintlock. Do not change the setting in the field. 4-93 A294/A295 CÓPIA NÃO CONTROLADA...
Page 322: Special Tools And Lubricants
Scanner Positioning Pin (4 pcs/set) 54209516 Test Chart - OS-A3 (10 pcs/Set) A0299387 Digital Multimeter – FLUKE 87 4.10.2 LUBRICANTS Part Number Description Q’ty A0289300 Grease Barrierta JFE 5 5/2 52039502 Silicone Grease G-501 G0049668 Grease: KS660: SHIN ETSU A294/A295 4-94 CÓPIA NÃO CONTROLADA...
Page 323: Preventive Maintenance
CÓPIA NÃO CONTROLADA PREVENTIVE MAINTENANCE CÓPIA NÃO CONTROLADA...
Page 324 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 325: Preventive Maintenance Schedule
Therefore, the development rollers should be cleaned whenever the developer is replaced. Waste Toner Collection A4 6% Chart 2,400k Bottle Sucked Toner Collection A4 6% Chart 1,200 k Bottle Development Suction A4 6% Chart 2,500 k Motor Ass’y A294/A295 CÓPIA NÃO CONTROLADA...
Page 326 600 k (US) Hot Roller 600 k Hot Roller Stripper I (Note 3) 300 k Dry cloth 600 k Pressure Roller Stripper 600 k Dry cloth Fusing Exit Roller 600 k Water or alcohol Pressure Roller 500 k A294/A295 CÓPIA NÃO CONTROLADA...
Page 327 These sensors should be cleaned with a blower brush at every PM visit. Description Activity Type Interval Note/Remarks Transport Belt 80 k Belt cleaner Feed Belt 80 k Belt cleaner Separation Roller 80 k Dry or damp cloth A294/A295 CÓPIA NÃO CONTROLADA...
Page 328 Punch Waste Hopper 300 k Empty the hopper. NOTE: PM parts should be replaced on a PM counter basis. The PM counter corresponding to the replaced part should be cleared (refer to Service Tables – PM Counter). A294/A295 CÓPIA NÃO CONTROLADA...
Page 329: Replacement And Adjustment
CÓPIA NÃO CONTROLADA REPLACEMENT AND ADJUSTMENT CÓPIA NÃO CONTROLADA...
Page 330 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 331: Exterior
2. Remove the stopper [B] (1 screw). 3. Lift up the left door and remove it. Right Door 1. Open the right door [C]. 2. Remove the stopper [D] (1 screw). 3. Lift up the right door and remove it. A294/A295 CÓPIA NÃO CONTROLADA...
Page 332: Right
CÓPIA NÃO CONTROLADA EXTERIOR 6.1.2 RIGHT A294R946.WMF Upper Right Cover 1. Remove the upper right cover [A] (4 screws). Lower Right Cover 1. Remove the lower right cover [B] (4 screws). A294/A295 CÓPIA NÃO CONTROLADA...
Page 333: Left
2. Remove the front and rear joint brackets [A] (2 screws each), if the optional finisher was installed. 3. Remove the upper left cover [B] (4 screws) Lower Left Cover 1. Remove the lower left cover [C] (4 screws). A294/A295 CÓPIA NÃO CONTROLADA...
Page 334: Rear
CÓPIA NÃO CONTROLADA EXTERIOR 6.1.4 REAR A294R911.WMF Upper Rear Cover 1. Remove the upper rear cover [A] (6 screws). Lower Rear Cover 1. Remove the lower rear cover [B] (6 screws). A294/A295 CÓPIA NÃO CONTROLADA...
Page 335: Document Feeder
2. Remove the grounding wire (not shown) (1 screw). 3. Remove the left cover [C] (1 screw, 2 connectors). Upper Exit Cover Removal 1. Remove the front cover. 2. Remove the upper exit cover [D] (1 screw). A294/A295 CÓPIA NÃO CONTROLADA...
Page 336 2. Remove the original tray. 3. Remove the upper cover [B] (2 screws). Bottom Plate Removal 1. Remove the front and rear covers. 2. Remove the original tray. 3. Remove the bottom plate [C] (1 snap ring, 1 connector). A294/A295 CÓPIA NÃO CONTROLADA...
Page 337: Feed Unit Removal And Separation Roller Replacement
(Pull the feed unit to the front, release the shaft at the rear, and release the front bushing.) 4. Remove the separation roller cover [C]. 5. Remove the snap ring [D]. 6. Remove the torque limiter [E] and separation roller [F]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 338: Feed Belt Replacement
NOTE: The springs [C] come off the feed belt cover easily. 4. Replace the feed belt [D]. NOTE: When reinstalling the pick-up roller unit, make sure that levers [E] and [F] on the front and rear original guides are resting on the pick-up roller unit cover. A294/A295 CÓPIA NÃO CONTROLADA...
Page 339: Pick-Up Roller Replacement
2. Remove the two snap rings [A]. 3. Remove the two bushings [B]. 4. Replace the pick-up roller [C]. NOTE: When reinstalling the pick-up roller, make sure that the one-way clutch [D] is not at the gear side. A294/A295 CÓPIA NÃO CONTROLADA...
Page 340: Sensor Replacement
2. Remove the guide plate [A] (5 screws). Entrance Sensor 3. Replace the entrance sensor [B] (1 connector). Length Sensor 3. Remove the length sensor bracket [C] (1 screw). 4. Replace the length sensor [D] (1 connector). A294/A295 6-10 CÓPIA NÃO CONTROLADA...
Page 341 B301R103.WMF B301R108.WMF 1. Release the entrance guide [A] (2 screws). 2. Release the transport belt unit [B]. 3. Remove the sensor bracket [C] (1 screw). 4. Replace the registration sensor [D] (1 connector, 1 screw). 6-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 342 4. Remove the guide plate [B] (2 screws). 5. Release the front end of the upper transport roller [C] (1 bushing, 1 E-ring). 6. Remove the sensor unit [D] (1 screw). 7. Replace the width sensor. A294/A295 6-12 CÓPIA NÃO CONTROLADA...
Page 343 [D]. Inverter Sensor 1. Remove the front and rear covers. 2. Remove the right lower cover [E] (4 screws). 3. Remove the guide plate [F] (3 screws). 4. Replace the inverter sensor [G] (1 connector). 6-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 344: Transport Belt Replacement
[E]. 6. Using SP6-009, do a DF free run for 3 minutes. After the free run is finished, clean off any dust that came off the transport belt onto the exposure glass. A294/A295 6-14 CÓPIA NÃO CONTROLADA...
Page 345: Motor Replacement
6.2.7 MOTOR REPLACEMENT B301R119.WMF B301R121.WMF 1. Remove the rear cover. Bottom Plate Motor 2. Replace the bottom plate motor [A] (2 screws, 1 connector). Pick-up Motor 2. Replace the pick-up motor [B] (2 screws, 1 connector). 6-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 346 2. Replace the transport motor [B] (4 screws, 2 connectors). Feed-out Motor 2. Remove the grounding wire [C] (1 screw). 3. Remove the feed-out motor assembly [D] (2 screws, 2 connectors). 4. Replace the feed-out motor [E] (2 screws). A294/A295 6-16 CÓPIA NÃO CONTROLADA...
Page 347: Feed-In Clutch Replacement
8. Remove 2 ball bearings [I] from the feed-in clutch shaft (1 E-ring each). 9. Remove the pulley [J], pin and timing belt [K]. 10. Replace the feed-in clutch [L]. NOTE: When re-installing the feed-in clutch, put the stopper screw [M] in the clutch hook. 6-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 348: Scanner Unit
3. Slide the rear scale [C] in the direction of the arrow, then remove it. 4. Remove the exposure glass [D]. NOTE: When reinstalling the exposure glass, make sure that the mark [E] is at the rear left corner, as shown. A294/A295 6-18 CÓPIA NÃO CONTROLADA...
Page 349: Lens Block
4. After reassembly, do the scanner and printer copy adjustment. (See Replacement and Adjustment – Copy Image Adjustment.) NOTE: Do not drive the scanner unit without the lens cover. The grounding plates [C] will contact the 1st scanner and damage the scanner. 6-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 350: Original Size Sensors
1. Remove the exposure glass. (See Exposure Glass.) 2. Remove the original width sensor [A] (1 screw, 1 connector). 3. Remove the lens cover (8 screws). (See Lens Block.) 4. Remove the original length sensors [B] (1 screw, 1 connector each). A294/A295 6-20 CÓPIA NÃO CONTROLADA...
Page 351: Exposure Lamp
3. Remove the lamp regulator cover [A] (2 screws). 4. Remove the exposure lamp [B] (2 screws, 1 connector). NOTE: When reinstalling the exposure lamp, pass the cable through the opening [C] in the bracket. 6-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 352: Lamp Regulator
2. Remove the lamp regulator cover [A] (2 screws). 3. Slide the holder [B] in the direction of the arrow. Then disconnect the flat cable [C]. 4. Remove the lamp regulator [D] (2 screws, 1 connector). A294/A295 6-22 CÓPIA NÃO CONTROLADA...
Page 353: Optics Dust Filter
CÓPIA NÃO CONTROLADA SCANNER UNIT 6.3.6 OPTICS DUST FILTER A294R006.WMF 1. Remove the original exit tray [A] (3 screws). 2. Remove the optics dust filter [B]. 6-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 354: Scanner H
1. Remove the front upper cover (7 screws, 1 connector). See Scanner Cover Removal. 2. Remove the left upper inner cover [A] (3 screws). 3. Remove the scanner H.P. sensor bracket [B] (1 screw). 4. Remove the scanner H.P. sensor [C] (1 connector). A294/A295 6-24 CÓPIA NÃO CONTROLADA...
Page 355: Scanner Motor
7. While pushing down the bracket [C] to release belt tension, remove the scanner motor assembly. 8. Remove the scanner motor from the bracket (3 screws) and replace it. 9. After reassembly, do the copy image adjustments. 6-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 356: Scanner Drive Wires
3. Remove the scanner front cover [B] (7 screws, 1 connector) and the rear upper cover [C] (6 screws). 4. Remove the scanner right cover [D] (4 screws). 5. Remove the bracket [E] (4 screws). 6. Remove the scanner frame [F] (10 screws). A294/A295 6-26 CÓPIA NÃO CONTROLADA...
Page 357 ⊗ ⊕ ∅ 8. Wind the end of the wire with the ring as shown ( , and 9. Install the tension spring on the tension bracket, and slightly tighten the tension bracket (1 screw). 6-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 358 14. Reassemble the scanner and do the scanner and copy adjustments (see Replacement and Adjustment – Copy Image Adjustments). A294/A295 6-28 CÓPIA NÃO CONTROLADA...
Page 359: Laser Unit
Turn off the main power switch and unplug the machine before attempting any of the procedures in this section. Laser beams can seriously damage your eyes. 6.4.1 CAUTION DECAL LOCATIONS There are two caution decals in the laser section as shown below. A294R106.WMF 6-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 360: Ldb And Ld Filter Replacement
2. Remove the LD cover [A] (4 screws). 3. Remove the LD filter [B]. 4. Replace the LDB [C] (2 screws and 5 connectors). NOTE: When disconnecting the cables, hold the LD unit. 5. Do SP 2-962 (process control initialization). A294/A295 6-30 CÓPIA NÃO CONTROLADA...
Page 361: Polygon Mirror Motor Replacement
2) Do not touch the glass surface of the polygon mirror motor with bare hands. 5. After reassembly, do the scanner and printer copy adjustments. (See Replacement and Adjustment – Copy Image Adjustments.) 6-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 362: Laser Synchronization Detector Replacement
1. Turn off the main power switch and unplug the machine. 2. Remove the ground plate [A] (1 screw). 3. Remove the detector cover [B] (2 screws). 4. Replace the laser synchronization detector [C] (1 screw, 1 connector). A294/A295 6-32 CÓPIA NÃO CONTROLADA...
Page 363: Drum Unit
NOTE: If it is hard to completely set the drum unit in the machine because the gear is disengaged, push in the drum unit while holding down the cleaning blade release lever [E]. After installing a new drum, do the following SP mode: 2-962 (process control initialization). 6-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 364: Quenching Lamp Replacement
2. Slightly pull up the quenching lamp cable [A], then release the hook [B] at the center of the quenching lamp. NOTE: Do not pull the wire too strongly. 3. Disconnect the connector [A]. 4. Replace the quenching lamp. A294/A295 6-34 CÓPIA NÃO CONTROLADA...
Page 365: Grid Plate/Charge Corona Wire/Wire Cleaner Replacement
4. Remove the plate [F]. 5. Remove the terminal spring [G]. 6. Slide the rear grid terminal [H] to the rear and remove it, then remove the rear end block cover [I]. 7. Remove the charge corona wire [J]. 6-35 A294/A295 CÓPIA NÃO CONTROLADA...
Page 366 NOTE: Locate the joint part [B] of the wire in the rear end block as shown. After installing new wires, reset SP2-001-1 to 2-001-6 (corona voltage and current) to the defaults. Then do SP2-962 (process control initialization). A294/A295 6-36 CÓPIA NÃO CONTROLADA...
Page 367: Drum Potential Sensor Replacement
3. Remove the drum potential sensor [B] and the grounding plate [C] (2 screws). 4. Replace the drum potential sensor [B]. CAUTION After replacing the drum potential sensor, perform the process control data initial setting (SP mode No. 2-962). 6-37 A294/A295 CÓPIA NÃO CONTROLADA...
Page 368: Cleaning Blade/Id Sensor Replacement
Do not touch the edge of the new cleaning blade. If some setting powder or toner on the blade edge is removed, apply toner at that place. When installing the cleaning blade, do not pinch the side seals. A294/A295 6-38 CÓPIA NÃO CONTROLADA...
Page 369: Cleaning Brush Replacement
4. Pull the cleaning brush shaft to the rear to release the cleaning brush [C], then remove the cleaning brush. NOTE: Do not touch the cleaning brush with bare hands. After replacement, clean the ID sensor surface. Then do SP3-001-2 to initialize the sensor. 6-39 A294/A295 CÓPIA NÃO CONTROLADA...
Page 370: Pick-Off Pawl Replacement
5. Replace the pick-off pawl [E]. NOTE: 1) Do not forget to hook the tension spring [F]. 2) After replacement, check that the pick-off pawl moves smoothly. 3) Do not touch the pick-off pawl edge. A294/A295 6-40 CÓPIA NÃO CONTROLADA...
Page 371: Drum Filter Replacement
Affected Drums and Models To distinguish the drums from before and after this change, the drum lot numbers and service parts numbers will be changed as follows. Lot Number Change: Old: XXXXXXXXXXXX (12 digits) New: __S__XXXXXXXXX Space 6-41 A294/A295 CÓPIA NÃO CONTROLADA...
Page 372 Note: Be sure not to rotate the drum in the opposite direction. After installing a new drum, do the following SP mode: 2-962 (process control initialization). A294/A295 6-42 CÓPIA NÃO CONTROLADA...
Page 373: Development And Toner Supply
Make sure that no developer remains on the development rollers or in ⇒ the development unit. NOTE: When replacing the toner hopper unit, be sure to follow the instructions on pages 3-11 and 12 of the Service Manual. 6-43 A294/A295 CÓPIA NÃO CONTROLADA...
Page 374 SP mode by pressing the “Quit” key. If this problem occurs, turn the main switch off and on, then perform the initial setting again. If the result is the same, see “SC342” in the troubleshooting section. A294/A295 6-44 CÓPIA NÃO CONTROLADA...
Page 375: Development And Air Dust Filter Replacement
5. Replace the central air dust filter [C]. 6. Remove the front air dust filter cover [D]. 7. Replace the front air dust filter [E]. NOTE: Make sure that the air dust filter cover [B] is fully installed. 6-45 A294/A295 CÓPIA NÃO CONTROLADA...
Page 376: Development Entrance, Front, & Rear Side Seals
NOTE: When re-assembling the development unit, use new side seals and align the edges of the side seals with the corner [C] and the edge [D] as shown. There is no need to change the developer with this procedure. A294/A295 6-46 CÓPIA NÃO CONTROLADA...
Page 377: Toner Density Sensor Replacement
3. Install new developer and reassemble the development unit. 4. Perform the developer initial setting (SP2-801) then process control initialization (SP2-962). NOTE: Do not make any copies before completing the developer initial setting (SP2-801). 6-47 A294/A295 CÓPIA NÃO CONTROLADA...
Page 378: Toner Hopper Sensor Replacement
CÓPIA NÃO CONTROLADA DEVELOPMENT AND TONER SUPPLY 6.6.6 TONER HOPPER SENSOR REPLACEMENT A294R303.WMF 1. Take out the toner hopper. (Refer to Developer Replacement.) 2. Replace the toner hopper sensor [A] (2 screws, 1 connector). A294/A295 6-48 CÓPIA NÃO CONTROLADA...
Page 379: Development Motor Replacement
1. Turn off the main switch. 2. Remove the rear covers. (Refer to Exterior Cover Removal.) 3. Remove the fly wheel (3 screws). 4. Replace the development motor unit [A] (4 screws, 2 connectors, and 1 hook). 6-49 A294/A295 CÓPIA NÃO CONTROLADA...
Page 380: Development Roller Shaft Cleaning
CÓPIA NÃO CONTROLADA DEVELOPMENT AND TONER SUPPLY 6.6.8 DEVELOPMENT ROLLER SHAFT CLEANING A294R405.WMF 1. Take out the development unit. (Refer to Development Unit Replacement.) 2. Remove toner and developer from the development roller shafts with teflon tape. A294/A295 6-50 CÓPIA NÃO CONTROLADA...
Page 381: Transfer Belt Unit
1. While keeping the lever [C] rotated fully counterclockwise, install the transfer belt unit. NOTE: 1) Insert the gear [D] into the opening [E] in the rear frame. 2) Place the slot [F] in the transfer belt unit on the rail. 6-51 A294/A295 CÓPIA NÃO CONTROLADA...
Page 382 1) The transfer belt unit must move up and down smoothly 2) Part [D] of the transfer belt unit must be behind the drum stay, 3) Part [D] of the transfer belt unit must be set in the indent [E] in the drum unit casing. A294/A295 6-52 CÓPIA NÃO CONTROLADA...
Page 383: Transfer Belt Replacement
1. Take out the transfer belt unit. (Refer to Transfer Belt Unit Removal.) 2. While raising the knob [A], disconnect the two connectors [B]. 3. Turn the transfer belt upper unit [C] 90 degrees counterclockwise, then raise and remove it. 4. Remove the screws [D]. 6-53 A294/A295 CÓPIA NÃO CONTROLADA...
Page 384 • Bias roller [E] 3) Position the transfer belt at the center of the belt roller [D]. (Both marks [F] should be visible.) 4) Set the transfer belt under the bias terminals [G] (see the previous page). A294/A295 6-54 CÓPIA NÃO CONTROLADA...
Page 385: Transfer Belt Cleaning Blade Replacemtnt
4. Install the new cleaning blade. NOTE: Do not touch the edge of the cleaning blade. If some of the setting powder on the blade edge is removed, apply setting powder or toner at that place. 6-55 A294/A295 CÓPIA NÃO CONTROLADA...
Page 386: Transfer Belt Bias Brush Replacement
CÓPIA NÃO CONTROLADA TRANSFER BELT UNIT 6.7.4 TRANSFER BELT BIAS BRUSH REPLACEMENT A294R455.WMF 1. Remove the transfer belt. 2. Remove the transfer belt bias brush holder [A] (1 screw). 3. Replace the transfer belt bias brush [B]. A294/A295 6-56 CÓPIA NÃO CONTROLADA...
Page 387: Paper Feed
2. Draw out the tandem feed tray [A] so that the right tandem tray [B] fully separates from the left one. 3. Push in the right tandem tray. 4. Remove the left tandem tray [C] (5 screws). 6-57 A294/A295 CÓPIA NÃO CONTROLADA...
Page 388 [D] is set behind the stopper [E] on the copier frame. 3) Use M4 x 4 screws [F] for securing the right tandem tray. Screws longer than 4 mm will prevent the right tandem tray from sliding out and in smoothly. A294/A295 6-58 CÓPIA NÃO CONTROLADA...
Page 389 CÓPIA NÃO CONTROLADA PAPER FEED Universal Tray Removal A294R711.WMF 1. Draw out the tray. 2. Remove the tray [A] from both guide rails, as shown (4 screws). 6-59 A294/A295 CÓPIA NÃO CONTROLADA...
Page 390: Paper Feed Roller Replacement
LCT. They are not interchangeable. 2) Do not touch the surface of the rollers with your bare hands. Note that there are counters for these rollers that you may wish to reset after installing a new roller (SP 7-816). A294/A295 6-60 CÓPIA NÃO CONTROLADA...
Page 391: Paper Feed And Vertical Transport Clutch, And Tray Lift, Paper Feed, And Paper End Sensor Removal
5. Slightly lift the vertical transport guide [A] and remove it. 6. Remove the securing screw [B], then remove the knob [C]. 7. Pull out the paper trays, then remove the paper tray unit inner cover [D] (2 screws). 6-61 A294/A295 CÓPIA NÃO CONTROLADA...
Page 392 10. Grasp the 1st or 2nd paper feed unit [E] and pull it out (2 screws). NOTE: Before removing the 1st or 2nd paper feed unit, remove the inner vertical transport guide [A]. Otherwise, the 1st or 2nd paper feed unit may be damaged. A294/A295 6-62 CÓPIA NÃO CONTROLADA...
Page 393 13. When re-installing the clutches, put the stopper [C] of each clutch on the correct hook on the bracket. 14. Remove the paper feed [D], paper end [E], or tray lift sensor [F] as required (1 bracket, 1 screw, and 1 connector for each sensor). 6-63 A294/A295 CÓPIA NÃO CONTROLADA...
Page 394: Rear Fence Return Sensor Replacement
6.8.4 REAR FENCE RETURN SENSOR REPLACEMENT A294R525.WMF 1. Turn off the main switch. 2. Draw out the tandem feed tray. 3. Remove the rear bottom plate [A] (1 screw). 4. Replace the rear fence return sensor [B] (1 connector). A294/A295 6-64 CÓPIA NÃO CONTROLADA...
Page 395: Rear Fence Hp Sensor Replacement
3. Remove the rear bottom plate [A] (1 screw). 4. Remove the rear fence transport gear [B] (1 screw). 5. Move the rear fence [C] to the right. 6. Remove the rear fence HP sensor [D] (1 connector). 6-65 A294/A295 CÓPIA NÃO CONTROLADA...
Page 396: Right 1St Tray Paper Sensor Replacment
NOTE: When putting back the side fences, make sure that the position of the side fences is correct. A4: Outer LT: Inner 5. Remove the bottom plate [C] (4 screws). 6. Replace the right 1st tray paper sensor [D] (1 screw and 1 connector). A294/A295 6-66 CÓPIA NÃO CONTROLADA...
Page 397: Bottom Plate Lift Wire Replacement
[D] and 1 actuator [E]). 5. Remove the wire covers [F] (1 E-ring each). 6. Remove the bracket [G] (1 screw, 1 E-ring, and 1 bushing). 7. Remove the gear [H]. 8. Replace the bottom plate lift wire [I]. 6-67 A294/A295 CÓPIA NÃO CONTROLADA...
Page 398 NOTE: When re-installing the bottom plate lift wire: 1) Set the positioning pin [A] in the hole [B] and set the projection [C] in the hole [D]. 2) Position the wire as shown [E]. 3) Do not cross the wires. A294/A295 6-68 CÓPIA NÃO CONTROLADA...
Page 399: Paper Dust Remover Cleaning
2. While pushing down the hook lever [A], remove the paper dust remover [B]. 3. Remove the paper dust inside the paper dust remover and clean inside it with a dry cloth or a blower-brush. 6-69 A294/A295 CÓPIA NÃO CONTROLADA...
Page 400: Registration Sensor Cleaning
A294R937.WMF 1. Remove the lower right inner cover [A] (4 screws, 3 knobs). 2. Disconnect the connector [B]. 3. Pull out the registration sensor assembly [C]. 4. Clean the photo sensor [D] with a blower-brush. A294/A295 6-70 CÓPIA NÃO CONTROLADA...
Page 401: Universal Tray Size Switch Replacement
3. Remove the PSU (5 screws, all connectors). See Boards and Other Items. 4. Disconnect the connector [A]. 5. Remove the tray size switch bracket [B] (2 screws). 6. Replace the universal tray size switch [C] (1 connector). 6-71 A294/A295 CÓPIA NÃO CONTROLADA...
Page 402: 1St Tray Lift Motor Removal
3. Remove the PSU (5 screws, all connectors) and IOB board (4 screws, all connectors). See Boards and Other Items. 4. Remove the tension spring [A]. 5. Remove the upper timing belt [B]. 6. Disconnect the connector [C]. 7. Remove the 1st tray lift motor [D] (3 screws). A294/A295 6-72 CÓPIA NÃO CONTROLADA...
Page 403: Lift Motor Removal (2Nd & 3Rd Trays)
See Boards and Other Items. 4. Remove the tension spring [A]. 5. Remove the screw [B]. 6. Remove the lower timing belt [C]. 7. Disconnect the connectors [D]. 8. Remove the lift motors [E] (2 screws each). 6-73 A294/A295 CÓPIA NÃO CONTROLADA...
Page 404: Paper Feed Motor Removal
Follow steps from 1 to 5 of 1st tray lift motor removal and from 1 to 6 of 2nd and 3rd lift motor removal. 2. Remove the paper feed motor [A], as shown above (4 screws, 2 connectors). A294/A295 6-74 CÓPIA NÃO CONTROLADA...
Page 405: Relay Motor, Upper Relay Clutch, Lct Relay Clutch Removal
5. Remove the relay clutch [D] (1 retaining ring, 1 connector). NOTE: When re-installing the clutch [D], put the pin [E] in the stopper in the cutout [F] in the clutch. 6. Remove the LCT relay clutch [G] (1 retaining ring, 1 connector). 6-75 A294/A295 CÓPIA NÃO CONTROLADA...
Page 406: Registration Motor Removal
2. Remove the fly wheel (3 screws). 3. Remove the timing belt [A]. 4. Remove the bracket [B] with the motor (3 screws, 1 connector). 5. Remove the registration motor [C] (3 screws, 1 timing belt, and 1 spring). A294/A295 6-76 CÓPIA NÃO CONTROLADA...
Page 407: Copier Feed Unit/Development Fan Motor Removal
5. Remove the LCT relay motor. (Refer to LCT Relay Motor Removal.) 6. Remove the upper right cover. (See Exterior.) 7. Remove the two fan motors [A] (1 screw, 1 connector each). 8. Remove the copier feed unit [B] (5 screws, 2 connectors). 6-77 A294/A295 CÓPIA NÃO CONTROLADA...
Page 408: Lct Relay And Relay Sensor Removal
2. Remove the bracket [A] with the LCT relay sensor (1 screw, 1 connector and 1 harness clamp [B]). 3. Remove the LCT relay sensor [C]. 4. Remove the bracket [D] with the relay sensor (1 screw, 1 connector). 5. Remove the relay sensor [E]. A294/A295 6-78 CÓPIA NÃO CONTROLADA...
Page 409: Tandem Feed Tray Paper Size Change
3. Remove the right tandem inner cover [C]. 4. Re-position the side fences [D] (1 screw each). The outer slot position is used when loading A4 size paper. 5. Re-install the right tandem inner cover [C]. 6-79 A294/A295 CÓPIA NÃO CONTROLADA...
Page 410 7. Remove the motor cover [B] (4 screws). 8. Re-position the side fences [C] (4 screws each). The outer slot position is used when loading A4 size paper. 9. Re-install the motor cover and the tray cover. A294/A295 6-80 CÓPIA NÃO CONTROLADA...
Page 411 A4 size, put the screw in the left hole as shown. (For LT size, the screw should be placed on the right.) 12. Re-install the rear bottom plate. 13. Change the paper size using SP5-019-001. 6-81 A294/A295 CÓPIA NÃO CONTROLADA...
Page 412: Mechanical Side Registration Adjustment
Then adjust the side registration of the image with the SP mode. 1. Pull out the tray. 2. Move the plate [A] as shown. Adjustment range: 0 ± 2.0 mm adjustment step: 1.0 mm/step A294/A295 6-82 CÓPIA NÃO CONTROLADA...
Page 413: Fusing Unit
4. Remove the oil supply and cleaning web unit [C] (1 screw). NOTE: Make sure that the web collecting roller gear engages with the gears on the fusing/exit unit after re-installing the oil supply and cleaning web unit. 6-83 A294/A295 CÓPIA NÃO CONTROLADA...
Page 414: Hot Roller Unit Removal And Pressure Roller Replacement
4. Release the fusing pressure by turning the pressure lever [F] 1/4 of a turn counterclockwise with a screw driver. NOTE: If the fusing pressure is still released when re-installing the inner cover of the fusing unit, that cover cannot be installed. A294/A295 6-84 CÓPIA NÃO CONTROLADA...
Page 415 9. Remove the C-ring [J] from the pressure roller and replace the pressure roller [K] (2 ball bearings, 2 bushings). NOTE: Lubricate the inner surface [L] of the pressure roller (bearing [M] contact part) with BARRIERTA L55/2 grease when replacing the pressure roller. 6-85 A294/A295 CÓPIA NÃO CONTROLADA...
Page 416: Hot Roller Replacement
4. Disconnect the three white fusing lamp connectors [F] on the front side. NOTE: To distinguish the 630W (A295) from the 530W (A294) lamps, the color ⇒ of the front wire harness [G] of the fusing lamp for the 630W (A295) is different from that of the 530W (A294).
Page 417 4) Route the thermistor cable and thermofuse cable (refer to [C] and [D] on the previous page). Make sure that the cables are not pinched and do not contact the gears. 6-87 A294/A295 CÓPIA NÃO CONTROLADA...
Page 418: Oil Supply & Cleaning Web Replacement
6. Push the web collecting roller shaft [E] to the short shaft side (rear side). Then remove the web collecting roller gear [F] and bushing [G]. 7. Replace the oil supply and cleaning web [H] (1 gear and 1 bushing). A294/A295 6-88 CÓPIA NÃO CONTROLADA...
Page 419 9. Access SP1-902-1 (web consumption counter), and change the value to 0. 10. Perform reset procedure for level “A” service code. 6-89 A294/A295 CÓPIA NÃO CONTROLADA...
Page 420: Web Cleaning Roller Replacement
2. Replace the web cleaning roller [A] (1 gear, 1 bracket, 2 bushings, and 2 springs). NOTE: When putting back the gear [B], the D-shaped opening in this gear should face the roller shaft side. The circular-shaped opening [C] in the gear should face the bracket side [D]. A294/A295 6-90 CÓPIA NÃO CONTROLADA...
Page 421: Hot Roller Stripper Replacement
CÓPIA NÃO CONTROLADA FUSING UNIT 6.9.6 HOT ROLLER STRIPPER REPLACEMENT A294R517.WMF 1. Remove the hot roller stripper unit: Follow steps 1 to 3 of hot roller unit removal. 2. Replace the hot roller strippers [A]. 6-91 A294/A295 CÓPIA NÃO CONTROLADA...
Page 422: Pressure Roller Stripper Replacement
1. Remove the pressure roller stripper unit: Follow steps 1 to 7 of hot roller unit removal and pressure roller replacement. 2. Remove the stripper pawl cover [A] (2 screws). 3. Replace the pressure roller strippers [B]. A294/A295 6-92 CÓPIA NÃO CONTROLADA...
Page 423: Pressure Roller Cleaning Roller Replacement
[D] on the rear and front side plates of the fusing unit exit. Then, turn the pressure roller cleaning roller unit counterclockwise, and push the pressure roller cleaning roller unit to the rear. Finally, secure it with the screw [A]. 6-93 A294/A295 CÓPIA NÃO CONTROLADA...
Page 424: Fusing And Exit Unit Removal
2) The fusing inner cover prevents the fusing and exit unit from hooking the fusing and exit unit on the slide rails. Put back the fusing and exit unit without the fusing inner cover. Then, put back the fusing inner cover. A294/A295 6-94 CÓPIA NÃO CONTROLADA...
Page 425: Fusing Pressure Adjustment
= decreases the pressure). NOTE: Loosen the lock nuts [B] before turning the pressure adjustment screw. Re-tighten the nuts after adjusting. 5. Repeat steps 1 to 4 to confirm the nip band width. 6-95 A294/A295 CÓPIA NÃO CONTROLADA...
Page 426: Paper Exit/Duplex Unit
2. Remove the sensor bracket [A] with the sensor (1 screw, 1 connector, and 2 clamps). 3. Replace the exit sensor [B]. NOTE: When putting back the sensor bracket, run the cable through the cutout [C] to slacken the cable. A294/A295 6-96 CÓPIA NÃO CONTROLADA...
Page 427: Duplex Unit Removal
1. Open the left and right front doors and pull out the duplex unit [A]. 2. Remove the 2 shoulder screws [B]. 3. Lift up the duplex unit. NOTE: When putting back the duplex unit, align the cutouts [C] with the slide rail projections [D]. 6-97 A294/A295 CÓPIA NÃO CONTROLADA...
Page 428: Duplex Unit Inner Cover Removal
CÓPIA NÃO CONTROLADA PAPER EXIT/DUPLEX UNIT 6.10.3 DUPLEX UNIT INNER COVER REMOVAL A294R802.WMF 1. Pull out the duplex unit. 2. Remove the duplex unit inner cover [A] (1 knob and 4 screws). A294/A295 6-98 CÓPIA NÃO CONTROLADA...
Page 429: Jogger Motor Replacement
4. Remove the jogger motor [D] (2 screws, 1 connector, 2 clamps). NOTE: When putting back the jogger motor, put back the duplex grip shaft and E- ring first. Then, tighten the screws for the jogger motor. 6-99 A294/A295 CÓPIA NÃO CONTROLADA...
Page 430: Duplex Unit Clutch Replacement
CÓPIA NÃO CONTROLADA PAPER EXIT/DUPLEX UNIT 6.10.5 DUPLEX UNIT CLUTCH REPLACEMENT A294R854.WMF 1. Remove the duplex unit. 2. Replace each clutch [A] (1 connector and 1 E-ring or 1 clutch stopper). A294/A295 6-100 CÓPIA NÃO CONTROLADA...
Page 431: Duplex Entrance Sensor Replacement
PAPER EXIT/DUPLEX UNIT 6.10.6 DUPLEX ENTRANCE SENSOR REPLACEMENT A294R805.WMF 1. Pull out the duplex unit. 2. Remove the entrance sensor bracket [A] with the sensor (2 screws). 3. Replace the duplex entrance sensor [B] (1 connector). 6-101 A294/A295 CÓPIA NÃO CONTROLADA...
Page 432 6. Remove the sensor bracket [F] with duplex transport sensor 3 (2 screws and 1 connector). 7. Replace duplex transport sensor 3 [G]. NOTE: When putting back the jogger fences, re-install both the jogger fences so that they are parallel. A294/A295 6-102 CÓPIA NÃO CONTROLADA...
Page 433: Duplex Transport Sensor 1/Duplex Inverter Sensor
5. Replace each sensor [D] (1 connector each). NOTE: When putting back the upper left cover, make sure that the cutouts [E] catch the duplex side plate projections [F] and the hooks [G] are underneath the bracket plate [H]. 6-103 A294/A295 CÓPIA NÃO CONTROLADA...
Page 434: Toner Bank
6.11 TONER BANK 6.11.1 WASTE TONER BOTTLE REMOVAL A294R901.WMF A294R902.WMF 1. Remove the toner bank cover [A] (2 pins). 2. Remove the toner bank inner cover [B] (3 screws). 3. Remove the waste toner bottle [C]. A294/A295 6-104 CÓPIA NÃO CONTROLADA...
Page 435: Toner Bank Unit Removal
3. Remove the noise filter [C] (2 screws and 4 connectors; upper: white ➂ ➀ lower: yellow) and toner bank motor [D] (2 screws, 1 connector). 4. Disconnect the three connectors [E] from the toner bank unit. 6-105 A294/A295 CÓPIA NÃO CONTROLADA...
Page 436 CÓPIA NÃO CONTROLADA TONER BANK A294R907.WMF A294R906.WMF 5. Remove the two screws [A] securing the toner transport coil tube. 6. While sliding the toner transport coil tube, remove the snap ring [B]. A294/A295 6-106 CÓPIA NÃO CONTROLADA...
Page 437 10. Remove the plastic bag from the toner transport coil tube. Re-connnect the toner supply cylinder to the toner transport coil tube (2 screws). 11. Perform procedure described in Transportation Remarks (section 3) (Procedure After Transportation). 6-107 A294/A295 CÓPIA NÃO CONTROLADA...
Page 438: Toner Supply Motor And Toner Supply Motor Sensor Removal
3. Remove the toner supply motor sensor [B]. 4. Remove the toner supply motor [C] (2 screws). NOTE: When putting back the parts, make sure that the 2 pipes are connected at the correct positions, as shown. A294/A295 6-108 CÓPIA NÃO CONTROLADA...
Page 439: Access To Inside The Toner Bank
3. Remove the left side plate [B] (9 screws and 2 links [C]). NOTE: When putting back the links [C], put the front pin [D] under the lock plate [E]. 4. Remove the toner bottle bottom plates [F] (3 screws each). 6-109 A294/A295 CÓPIA NÃO CONTROLADA...
Page 440: Boards And Other Items
7. Remove the SICU cover bracket [E] (7 screws). 8. Replace the SICU [F] (4 flat cables, 9 connectors, and 7 screws). 9. Remove the NV-RAM [G] from the old SICU and install it on the new board. A294/A295 6-110 CÓPIA NÃO CONTROLADA...
Page 441: Hard Disk Drive
NOTE: If either SP4-911-1 or SP4-912-1 is done, all the data for pre-set stamps and user stamps are deleted from both disks. 5. Install the stamp data using a flash memory card. (Refer to Stamp Data Installation in section 4.) 6-111 A294/A295 CÓPIA NÃO CONTROLADA...
Page 442: Bcu Board
2. Replace the BCU board [A] (6 screws and 20 connectors). 3. Remove the NV-RAM [B] from the old BCU board and install it on the new board. NOTE: If the screws [C] are removed, the BCU board can be swung out. A294/A295 6-112 CÓPIA NÃO CONTROLADA...
Page 443: I/O Board
CÓPIA NÃO CONTROLADA BOARDS AND OTHER ITEMS 6.12.4 I/O BOARD A294R925.WMF 1. Remove the lower rear cover (6 screws). See Exterior. 2. Replace the I/O board [A] (6 screws and 16 connectors). 6-113 A294/A295 CÓPIA NÃO CONTROLADA...
Page 444: Psu
CÓPIA NÃO CONTROLADA BOARDS AND OTHER ITEMS 6.12.5 PSU A294R927.WMF 1. Remove the lower rear cover (6 screws). See Exterior. 2. Replace the PSU [A] (4 screws and 8 connectors). A294/A295 6-114 CÓPIA NÃO CONTROLADA...
Page 445: Charge/Grid/Bias Power Pack
CÓPIA NÃO CONTROLADA BOARDS AND OTHER ITEMS 6.12.6 CHARGE/GRID/BIAS POWER PACK A294R915.WMF 1. Remove the upper rear cover (6 screws). See Exterior. 2. Replace the charge/grid/bias power pack [A] (2 screws and 5 connectors). 6-115 A294/A295 CÓPIA NÃO CONTROLADA...
Page 446: Fusing/Duplex Motor Replacement
4. Remove the timing belt [B]. 5. Remove the fusing/duplex motor [C] (4 screws, 2 hooks [D]). NOTE: When putting back the parts, hook up the tension spring (this automatically gives the belt the correct tension), then tighten screw [A]. A294/A295 6-116 CÓPIA NÃO CONTROLADA...
Page 447: Drum Motor Replacement
5. Remove the drum motor [C] (5 screws, 2 connector, 1 hook, and 1 stopper [D]). NOTE: When putting back the parts, hook up the tension spring (this automatically gives the belt the correct tension), then tighten screw [A]. 6-117 A294/A295 CÓPIA NÃO CONTROLADA...
Page 448: Copy Image Adjustment: Printing/Scanning
3rd paper feed SP1-002-3 (Optional PFU tray 1) 2 ± 1.5 mm 4th paper feed (LCT) SP1-002-4 5th paper feed (LCT) SP1-002-5 6th paper feed (LCT) SP1-002-6 Duplex SP1-002-7 A: Leading Edge Registration A294R633.WMF B: Side-to-side Registration A294/A295 6-118 CÓPIA NÃO CONTROLADA...
Page 449 3 ± 2 mm Leading edge SP2-101-1 2 ± 1.5 mm Left edge SP2-101-3 A: Trailing Edge Blank Margin B: Right Edge Blank Margin C: Leading Edge Blank Margin D: Left Edge Blank Margin A294R634.WMF 6-119 A294/A295 CÓPIA NÃO CONTROLADA...
Page 450 1) If the magnification in the main scan direction is not within 100 ± 0.5%, adjust using SP2-909-1. 2) If the magnification in the sub scan direction is not within 100 ± 1.0%, adjust using SP2-910. NOTE: Check the magnification after the paper cools down. A294/A295 6-120 CÓPIA NÃO CONTROLADA...
Page 451: Parallelogram Image Adjustment
3. Remove the original exit tray and the scanner right cover. (see Replacement and Adjustment – Scanner Drive Wires) 4. Peel away the mylar [A] covering the opening in the frame. 5. Loosen the three screws [B] that hold the laser unit. 6-121 A294/A295 CÓPIA NÃO CONTROLADA...
Page 452 If the opposite side is down, adjust in the opposite direction. 8. Tighten the three screws to secure the laser unit. 9. Print the trimming area pattern to check the image. If it is still the same, repeat steps 2 to 7. A294/A295 6-122 CÓPIA NÃO CONTROLADA...
Page 453: Scanning
1. Place the test chart on the exposure glass and make a copy from one of the feed stations. 2. Check the magnification ratio, and adjust it using the following SP mode if necessary. The specification is within ±1%. SP mode Scanner Sub Scan Magnification SP4-008 A: Sub Scan Magnification A294R636.WMF 6-123 A294/A295 CÓPIA NÃO CONTROLADA...
Page 454: Adf Image Adjustment
2. Check the registration, and adjust using the following SP modes if necessary. SP mode Side-to-side Registration SP6-006-1 Leading Edge Registration (Thin original mode) SP6-006-2 Leading Edge Registration (Single-sided/Duplex: front) SP6-006-3 Leading Edge Registration (Duplex: rear) SP6-006-4 A294R637.WMF A: Leading Edge Registration A294R692.WMF B: Side-to-side Registration A294/A295 6-124 CÓPIA NÃO CONTROLADA...
Page 455: Touch Screen Calibration
2. Select “[1] Touch Screen Adjust”. NOTE: [2] tests the LEDs on the operation unit, not the machine’s main operation panel. [3] and [4] are for factory use only. Do not use unless directed by senior technical staff. A294R117.PCX 6-125 A294/A295 CÓPIA NÃO CONTROLADA...
Page 456 If it does not, touch “Re-input” (or press the % key) and repeat the calibration procedure. 5. Touch “OK” on the adjustment screen.` 6. Touch “Exit” to exit the self diagnostic mode. A294/A295 6-126 CÓPIA NÃO CONTROLADA...
Page 457: Troubleshooting
CÓPIA NÃO CONTROLADA TROUBLESHOOTING CÓPIA NÃO CONTROLADA...
Page 458 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 459: Service Call Conditions
3) When a Level A or B SC occurs while in an SP mode, the display does not indicate the SC number. If this occurs, check the SC number after leaving the SP mode. This does not apply to Level B’ codes. A294/A295 CÓPIA NÃO CONTROLADA...
Page 460: Sc Code Descriptions
• Scanner home position sensor defective • Scanner drive motor defective • MCU defective • Scanner home position sensor connector defective • Scanner drive motor connector defective • Scanner drive wire, timing belt out of position A294/A295 CÓPIA NÃO CONTROLADA...
Page 461 Possible Causes • Scanner motor defective • MCU defective SC127: Scanner Motor Error 4 Definition [B] The scanner motor rotates in the opposite direction from the signal from the MCU. Possible Causes • Scanner motor defective A294/A295 CÓPIA NÃO CONTROLADA...
Page 462 Definition [B] A feedback voltage for the charge corona of less than 1.5 V was detected from the charge/bias/grid power pack 9 times consecutively. Possible Causes • Charge/bias/grid power pack defective • Poor charge corona unit connection A294/A295 CÓPIA NÃO CONTROLADA...
Page 463 Possible Causes • Drum potential sensor defective • Poor connection between the drum potential sensor and the BCU • BCU defective • Charge/bias/grid power pack defective A294/A295 CÓPIA NÃO CONTROLADA...
Page 464 V (grid voltage). Possible Causes • Drum potential sensor defective • Poor connection between the drum potential sensor and the BCU • BCU defective • Charge/bias/grid power pack defective • Dirty or worn charge corona wire A294/A295 CÓPIA NÃO CONTROLADA...
Page 465 The laser writing signal (F-gate) does not go to LOW for more than 15 seconds after the copy paper reaches the registration sensor. Possible Causes • SICU board defective • Poor connection of the printer controller • Printer controller defective A294/A295 CÓPIA NÃO CONTROLADA...
Page 466 20 seconds after the polygonal mirror motor turns off. Possible Causes • Polygonal mirror motor defective • Poor connection between the polygonal mirror motor drive board and the SICU board • Polygonal mirror motor drive board defective • SICU board defective A294/A295 CÓPIA NÃO CONTROLADA...
Page 467 The TD sensor output voltage is less than 0.5 V or more than 4.0 V 10 times consecutively during copying. Possible Causes • TD sensor defective • Poor connection between the TD sensor and the BCU • BCU defective • Toner supply defective A294/A295 CÓPIA NÃO CONTROLADA...
Page 468 SC345: Development Bias Leak Definition [B] Maximum PWM for the development bias signal is applied 10 times consecutively. Possible Causes • Poor connection between the development bias terminal and the charge/bias/grid power pack • Charge/bias/grid power pack A294/A295 7-10 CÓPIA NÃO CONTROLADA...
Page 469 • ID sensor defective • ID sensor connector defective • Poor ID sensor connector connection • BCU defective • Charge/bias/grid pack defective • Dirty ID sensor • Defect on the drum at the ID sensor pattern writing area 7-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 470 ) exceeds 700 V, 10 times consecutively. Possible Causes • Drum potential sensor defective • IO Board defective • Poor connection of the drum unit connector • LD defective • Poor drum cleaning • Dirty optics • Drum wear A294/A295 7-12 CÓPIA NÃO CONTROLADA...
Page 471 The machine does not detect the connection signal from HDD 2 when the operation switch is turned on. Possible Causes • Poor connection between the HDD and SICU • The dc power connector to the HDD is disconnected • HDD defective • SICU defective 7-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 472 SC370, 371, 372, 373, 374, 375: IMAC (Image Compression IC) Error 1 Definition [B] An error occurs during image processing in the IMAC, which handles image compression and image data transfer between the machine’s components. Possible Causes • SICU defective A294/A295 7-14 CÓPIA NÃO CONTROLADA...
Page 473 The image data could not be transferred to the HDD within 15 seconds. Possible Causes • SICU defective • Printer controller defective • SBU defective • Interface board defective • Harness to print controller unplugged 7-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 474 Definition [C] (All copier functions can be used except for “Document Editor”). Data transmission between the copier HDD and the CD-R/RW is not completed within 105 seconds. Possible Causes: • CD-R/RW defective • CD-R/RW media defective A294/A295 7-16 CÓPIA NÃO CONTROLADA...
Page 475 The drum motor lock signal is longer than 2 seconds while the drum motor is Possible Causes • Too much load on the drive mechanism • Drum motor defective • Poor drum motor connector connection • BCU defective 7-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 476 3 seconds. Possible Causes • Used toner collection bottle or sucked toner collection bottle is incorrectly set • Used toner collection bottle or sucked toner collection bottle connector is loose or sensor defective A294/A295 7-18 CÓPIA NÃO CONTROLADA...
Page 477 2) The 3rd lift sensor is already activated when the 3rd tray is placed in the machine. Possible Causes • 3rd lift sensor defective • 3rd tray lift motor defective • Poor 3rd pick-up solenoid connection • Poor 3rd tray lift motor connection 7-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 478 2) The LCT 3rd lift sensor is already activated when the LCT 3rd tray is placed in the machine. Possible Causes • LCT 3rd lift sensor defective • LCT 3rd tray lift motor defective • Poor LCT 3rd pick-up solenoid connection • Poor LCT 3rd tray lift motor connection A294/A295 7-20 CÓPIA NÃO CONTROLADA...
Page 479 153.5 Possible Causes • Jogger fence motor defective • Too much load on the drive mechanism • Poor motor connector connection 7-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 480 • BCU defective SC541: Fusing Thermistor Open Definition [A] The fusing temperature detected by the thermistor was below 7°C for 15 seconds. Possible Causes • Fusing thermistor defective or out of position • Poor thermistor terminal connection A294/A295 7-22 CÓPIA NÃO CONTROLADA...
Page 481 SC545: Fusing Overheat Error 3 Definition [A] The fusing lamp stays on at full power for 45 seconds while in the stand-by condition after warming-up is completed. Possible Causes • Fusing thermistor out of position 7-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 482 1 second while the toner supply motor is energized. Possible Causes • Used toner supply motor or development suction motor defective • Used toner supply motor sensor or development suction motor sensor defective • BCU defective A294/A295 7-24 CÓPIA NÃO CONTROLADA...
Page 483 The TXD and RXD signals between BCU and ADF main board do not stabilize. Possible Causes • Poor connection between the BCU board and the ADF main board • ADF main board defective • BCU board defective 7-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 484 The BCU cannot receive the data from the SICU properly. Possible Causes • Poor connection between the SICU and BCU boards • SICU board defective • BCU board defective • Noise on the interface cable A294/A295 7-26 CÓPIA NÃO CONTROLADA...
Page 485 The SICU cannot receive the data from the BCU properly. Possible Causes • Poor connection between the SICU and BCU boards • SICU board defective • BCU board defective • Noise on the interface cable 7-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 486 Definition [B] The feed-in motor does not turn properly. Possible Causes • Feed-in motor defective • ADF main board defective • Poor connection between the feed-in motor and ADF main board • Too much load A294/A295 7-28 CÓPIA NÃO CONTROLADA...
Page 487 The lower transport motor does not turn properly Possible Causes • Lower transport motor defective • Finisher main board defective • Poor connection between the lower transport motor and finisher main board • Too much load 7-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 488 Definition [B] The shift tray half-turn sensor status does not change within 1 second after the shift motor turns on. Possible Causes • Shift motor defective • Shift tray half-turn sensor defective • Too much load A294/A295 7-30 CÓPIA NÃO CONTROLADA...
Page 489 The stack plate HP sensor does not turn on within a certain time after the stack plate motor turned on. Possible Causes • Stack plate motor defective • Stack plate HP sensor defective • Poor stack plate motor connection 7-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 490 The total counter contains something that is not a number. Possible Causes • NVRAM defective SC901: Mechanical Total Counter Error Definition [B] The mechanical total counter is disconnected. Possible Causes • Mechanical total counter defective A294/A295 7-32 CÓPIA NÃO CONTROLADA...
Page 491 Possible Causes • Software defective SC964: Printer Ready Error Definition [B’] The print ready signal is not generated for more than 17 seconds after the IPU received the print start signal. Possible Causes • Software defective 7-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 492 Possible Causes • Software defective • SICU defective SC982: HDD Construction Error Definition [B’] A HDD that does not have the correct specifications has been installed. Possible Causes • HDD defective • Incorrect HDD type A294/A295 7-34 CÓPIA NÃO CONTROLADA...
Page 493 The data transfer from HDD 2 to the DRAM is not completed within 15 seconds. Possible Causes • HDD 2 defective • SICU defective • Software defective • Poor connection between the SICU and HDD 2 7-35 A294/A295 CÓPIA NÃO CONTROLADA...
Page 494 CÓPIA NÃO CONTROLADA SERVICE CALL CONDITIONS Rev. 9/2001 SC990: Software Performance Error Definition [B’] The software performs an unexpected function. Possible Causes • Software defective A294/A295 7-36 CÓPIA NÃO CONTROLADA...
Page 495: Electrical Component Defects
Lower Bottle Inner Stays On Normally, the machine works properly CN623-B5 Cap (S13) because the current status of the toner (BCU) Stays Off bottle cap is stored in the memory. 7-37 A294/A295 CÓPIA NÃO CONTROLADA...
Page 496 CN511-B5 (IOB) “Paper End” is not displayed even if Stays Off there is no paper in the 3rd tray. Rear Fence HP Stays On SC515 is displayed CN515-5 (S26) (IOB) Stays Off SC515 is displayed A294/A295 7-38 CÓPIA NÃO CONTROLADA...
Page 497 “Paper Jam” is displayed whenever a Stays Off copy is made. Duplex Entrance “Paper Jam” is displayed even if there Stays On (S40) is no paper. CN611-A11 (BCU) “Paper Jam” is displayed whenever a Stays Off copy is made. 7-39 A294/A295 CÓPIA NÃO CONTROLADA...
Page 498 The machine cannot detect a no toner Stays On CN517-B5 Collection Bottle collection bottle condition. (IOB) (S53) Stays Off SC496 is displayed. For a photointerrupter, “Stays on” means that the actuator is in the sensor. A294/A295 7-40 CÓPIA NÃO CONTROLADA...
Page 499: Switches
A11, A12 when a copy is made. 3rd Tray Paper Size CN510-A2, Open The CPU cannot detect the proper (SW11) A3, A4, A5, paper size, and misfeeds may occur Shorted when a copy is made. 7-41 A294/A295 CÓPIA NÃO CONTROLADA...
Page 500: Blown Fuse Conditions
Additionally, there is a fuse only for the AC input line of the energy saver converter. Fuse Symptom when turning on the main power switch Power Supply Board FU404 No response A294/A295 7-42 CÓPIA NÃO CONTROLADA...
Page 501: Firmware History
CÓPIA NÃO CONTROLADA Rev.10/2000 FIRMWARE HISTORY 7.4 FIRMWARE HISTORY 7.4.1 A294 / A295 FIRMWARE MODIFICATION HISTORY ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION First release of the firmware A2945610 A From first 6.3.1...
Page 502 CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev. 10/2000 ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION 6. SC 495 Prevention When only one toner bottle is set and a long job is done using high image density original, the system toner end is not detected and SC495 is displayed.
Page 503 CÓPIA NÃO CONTROLADA Rev.10/2000 FIRMWARE HISTORY ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION 1. SP6-120 Jogger Position Adjustment To correspond to various paper types, a function to adjust jogger movement towards paper has been added.
Page 504 CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev. 10/2000 ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION Corrections (Ver. 7.28.1) A2945604 G / From Mar, 00 7.28.1 A2945264 G production 1. SP6-119 Display The displays of the SP6-119 have been...
Page 505 CÓPIA NÃO CONTROLADA Rev.10/2000 FIRMWARE HISTORY ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION Corrections (Ver. 7.30.1) A2945604 H / From Middle 7.30.1 A2945264 H of March 2000 1. SC990 in Platen + Two sided to Two sided production + Chapter modes.
Page 506 CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev. 10/2000 ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION In order to activate the new default settings after you have installed the firmware, you must enter the SP modes and manually change the settings to the following new default values.
Page 507 CÓPIA NÃO CONTROLADA Rev.10/2000 FIRMWARE HISTORY ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION • The margin in Magazine Mode and in Combine Mode cannot be adjusted in this SP mode. •...
Page 508 CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev. 10/2000 ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION FIRMWARE SERIAL FIRMWARE LEVEL NUMBER VERSION 8. Default setting for SP1-002 We have learned that the new settings of SP 1-002 (side-to-side registration) meets better the actual adjustment.
Page 509: A294 / A295 Firmware Modification History
CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev.06/2002 A294 / A295 FIRMWARE MODIFICATION HISTORY DESCRIPTION OF MODIFICATION Title SERIAL SOFTWARE NUMBER VERSION ⇒ Software modified so that it can also be used For use with the 7.40 A2945604 K / with the A295. (all versions from 7.40 can be...
Page 510 The lower limit of Vref is newly set as 1 V. Lower limit of This is to prevent the Vref becomes too low Vref causing toner scattering or dirty background (A294 model when increasing the image density by only) changing the bias for the ID sensor pattern development.
Page 511 1024, … sheets are copied. (i.e.: if the number of originals is 2, the machine stops after 128 sets are copied (total 256 sheets). If the number of originals is 40, the machine stops after 32 sets are copied (total 1280 sheets). 7-53 A294/A295 CÓPIA NÃO CONTROLADA...
Page 512 CÓPIA NÃO CONTROLADA Rev. 06/2002 FIRMWARE HISTORY ⇒ A294 / A295 FIRMWARE MODIFICATION HISTORY Title SERIAL SOFTWARE NUMBER VERSION Machine stops The machine stops during copying with during copying the following conditions: with staple mode The printer controller is installed.
Page 513 CÓPIA NÃO CONTROLADA Rev. 06/2002 FIRMWARE HISTORY A294 / A295 FIRMWARE MODIFICATION HISTORY SERIAL SOFTWARE Title DESCRIPTION OF MODIFICATION NUMBER VERSION ⇒ A294-II/A295-II This version onward should be installed A2945609/ models on the A294-II/A295-II models. This A2945269 firmware is commonly used on both A294/A295 and A294-II/A295-II models.
Page 514 CÓPIA NÃO CONTROLADA FIRMWARE HISTORY Rev. 06/2002 A294 / A295 FIRMWARE MODIFICATION HISTORY SERIAL SOFTWARE Title DESCRIPTION OF MODIFICATION NUMBER VERSION ⇒ SC398 just after When the new CD-R/RW is turned on with turning on new the following conditions, SC398 is CD-R/RW displayed.
Page 515 CÓPIA NÃO CONTROLADA Rev. 06/2002 FIRMWARE HISTORY A294 / A295 FIRMWARE MODIFICATION HISTORY SERIAL SOFTWARE Title DESCRIPTION OF MODIFICATION NUMBER VERSION ⇒ Default setting in The default setting of SP1902-4 for the A2945609 A/ SP1902-4 (Web new A294-II/A295-II models is 90% for...
Page 516 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 517 CÓPIA NÃO CONTROLADA 3,000-SHEET FINISHER B302 CÓPIA NÃO CONTROLADA...
Page 518 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 519: Overall Machine Information
Shift tray/staple mode/punch mode (80 g/m , 20 lb): Pages/set Sets B5 sideways 2 to 9 A4 sideways 10 to 80 200 to 30 LT sideways 2 to 9 Other sizes 10 to 40 150 to 30 A294/A295 CÓPIA NÃO CONTROLADA...
Page 520 2-staple: 2 position (double top, double rear(*)) Staple Replenishment: Cartridge (5,000 staples) Power Source: 24 Vdc (from copier) Power Consumption: 120 W Weight: 60 kg Size (W x D x H): 800 mm x 730 mm x 980 mm A294/A295 CÓPIA NÃO CONTROLADA...
Page 521: Mechanical Component Layout
17. Stack Feed-out Belt 7. Entrance Rollers 18. Shift Tray Drive Belt 8. Punch Unit 19. Lower Transport Rollers 9. Pre-stack Junction Gate 20. Shift Tray 10. Punch Waste Hopper 21. Shift Tray Exit Roller 11. Pre-stack Tray A294/A295 CÓPIA NÃO CONTROLADA...
Page 522: Electrical Component Description
Stack Height 2 Detects when the top of the copy paper stack in the shift tray has become too high. Upper Tray Exit Checks for misfeeds at the upper tray. A294/A295 CÓPIA NÃO CONTROLADA...
Page 523 Returns the stapler to its guide from the user SOL6 operation position. PCBs Controls the finisher and communicates with the Main PCB1 copier. Punch Passes signals between the punch unit and the PCB2 finisher main board. A294/A295 CÓPIA NÃO CONTROLADA...
Page 524: Drive Layout
9. Staple Tray Exit Roller 22. Jogger Fence 10. Positioning Roller 23. Stack Plate Motor 11. Lower Transport Roller 3 24. Stapler Motor 12. Lower Transport Motor 25. Stack Feed-out Belt 13. Lower Transport Rollers 2 26. Stapler Rotation Motor A294/A295 CÓPIA NÃO CONTROLADA...
Page 525: Detailed Descriptions
The tray junction gate solenoid and the stapler junction gate solenoid remain off. The copies are sent to the shift tray directly. Staple Mode The stapler junction gate solenoid turns on. The copies go downwards to the jogger unit. A294/A295 CÓPIA NÃO CONTROLADA...
Page 526: Paper Pre-Stacking
[F], and the two sheets of copy paper are sent to the stapler tray. All sheets after the 2nd sheet go to the stapler tray via the paper guide [E]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 527: Jogger Unit Paper Positioning
When the next copy paper turns on the stapler tray entrance sensor, the stack plate motor turns on gain to return to its home position. The home position is detected by stack plate HP sensor [J]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 528: Stapler Unit Movement
(at the rear side first then at the front side). After the job is completed, the stapler moves back to its home position. This is detected by the stapler HP sensor [C]. A294/A295 8-10 CÓPIA NÃO CONTROLADA...
Page 529 As the stapler unit is returning to the home position, the stapler return sensor [D] is activated, the return solenoid [E] turns on and it assists the guide roller [F] to return to its guide (this guide directs the stapler during rotation). 8-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 530: Stapler
[E] and the tray opens. The staple waste drops into the staple waste hopper [F]. When the staple waste hopper is full, the actuator on its base activates the staple waste hopper sensor [G]. An SC is displayed. A294/A295 8-12 CÓPIA NÃO CONTROLADA...
Page 531 When the operator lifts the release lever [E], the clinch area is released from the cartridge by pushing the holders [F]. The jammed staples can be removed. The staple sheet can be feed manually by sliding the knob [G]. 8-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 532: Feed-Out
Then the shift tray exit roller takes over the stack feed-out. The on-off timing of the exit guide motor is detected by the exit guide open sensor [H]. The stack-feed-out motor turns off when the pawl actuates the stack feed-out belt home position sensor [I]. A294/A295 8-14 CÓPIA NÃO CONTROLADA...
Page 533: Shift Tray Up/Down Movement
The shift tray upper limit switch [J] prevents the drive gear from being damaged if stack height sensor 1 fails. When the shift tray pushes up the shift tray positioning roller [K], the switch will cut the power to the shift tray lift motor. 8-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 534: Shift Tray Side-To-Side Movement
[F] and the shift motor stops. The next set of copies is then delivered. The motor turns on, repeating the same process and moving the tray back to the previous position. A294/A295 8-16 CÓPIA NÃO CONTROLADA...
Page 535: Punch Unit Drive
The home position is detected by the punch HP sensor [C]. When the cut-out in the punch shaft gear disk [D] enters the punch HP sensor, the punch motor stops. The punch position is adjusted as follows: • Right to left: SP mode • Front to rear: Spacers 8-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 536: Punch Waste Collection
The punch waste hopper sensor also works as the hopper set sensor. If the punch waste hopper is not set, the sensor stays away from the hole in the hopper holder [D] and a message is displayed. This message is the same as for the hopper full condition. A294/A295 8-18 CÓPIA NÃO CONTROLADA...
Page 537: Jam Conditions
9. In staple mode, the stapler tray paper sensor does not turn off within 250 pulses of the stack feed-out motor after it started. 10. In staple mode, the shift tray exit sensor does not turn off within 1,260 ms after the stack feed-out motor started. 8-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 538: Service Tables
Free run: staple and tray shift NOTE: Do not use any other settings. 3.2 TEST POINTS Label Monitored Signal TP100 (5V) +5 V TP101 (GND) Ground TP102 (RXD) TP103 (TXD) 3.3 FUSES Function FU100 Protects 24 V. A294/A295 8-20 CÓPIA NÃO CONTROLADA...
Page 539: Replacement And Adjustment
2. Remove the front door [B]. Left Inner Cover 1. Remove the front door. 2. Remove the left inner cover [C] (1 screw). Inner Cover 1. Remove the three screws and unhook the pawls. 2. Remove the inner cover [D]. 8-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 540 1. Remove the table. 2. Remove two stepped screws [F]. 3. Remove the left upper cover. 4. Slide across the right cover [G] and remove it (2 screws). Rear Cover 1. Remove the rear cover [H] (2 screws). A294/A295 8-22 CÓPIA NÃO CONTROLADA...
Page 541 3. Remove the shift tray (4 screws). Front Shift Tray Cover 1. Remove the front shift tray cover [C] (1 screw). Rear Shift Tray Cover 1. Remove the rear shift tray cover [D] (1 screw). 8-23 A294/A295 CÓPIA NÃO CONTROLADA...
Page 542: Positioning Roller Replacement
CÓPIA NÃO CONTROLADA POSITIONING ROLLER REPLACEMENT 4.2 POSITIONING ROLLER REPLACEMENT B302R506.WMF 1. Open the front door. 2. Remove the snap ring [A]. 3. Release the rubber belt [B]. 4. Replace the positioning roller [C]. A294/A295 8-24 CÓPIA NÃO CONTROLADA...
Page 543: Alignment Brush Roller Replacement
5. Remove screw [F] of the inner cover [G]. 6. Open the guide [H] and a part of the inner cover, and remove the alignment brush roller assembly [I] (1 E-ring). 7. Replace the alignment brush roller (1 E-ring, 1 ball bearing). 8-25 A294/A295 CÓPIA NÃO CONTROLADA...
Page 544: Sensor Replacement
4. Replace the stack height sensor 1 [C] or 2 [D] (1 connector each). Exit Guide Open Sensor 2. Remove the sensor bracket [E] (1 screw). 3. Replace the exit guide open sensor [F] (1 connector). A294/A295 8-26 CÓPIA NÃO CONTROLADA...
Page 545: Upper Tray Paper Limit And Exit Sensor
3. Remove the sensor bracket [B] (1 screw). 4. Replace the upper tray paper limit sensor [C] (1 connector). Upper Tray Exit Sensor 2. Remove the sensor bracket [D] (1 screw). 3. Replace the upper tray exit sensor [E] (1 connector). 8-27 A294/A295 CÓPIA NÃO CONTROLADA...
Page 546: Shift Tray Exit Sensor
5. Release the link [C] from the cam and remove the upper exit guide (1 plastic clip, 1 connector). 6. Remove the guide stay [D] (2 screws). 7. Replace the shift tray exit sensor [E] (1 screw, 1 connector). A294/A295 8-28 CÓPIA NÃO CONTROLADA...
Page 547: Entrance And Stapler Tray Entrance Sensors
3. Replace the entrance sensor [B] (1 screw, 1 connector). Stapler Tray Entrance Sensor 1. Open the front door. 2. Remove the sensor bracket [C] (1 screw). 3. Replace the stapler tray entrance sensor [D] (1 screw, 1 connector). 8-29 A294/A295 CÓPIA NÃO CONTROLADA...
Page 548: Pre-Stack Stopper Sensor
2. Remove two plastic clips from the guide [A]. 3. Open the front door. 4. Remove the left vertical transport guide [B]. 5. Remove the middle vertical transport guide [C] (1 connector). 6. Replace the pre-stack paper sensor [D] (1 connector). A294/A295 8-30 CÓPIA NÃO CONTROLADA...
Page 549: Staple Waste Hopper Sensor
1. Open the front door and pull out the stapler unit. 2. Remove the staple waste hopper [A] (1 plastic clip). 3. Remove the hopper holder [B] (2 E-rings). 4. Replace the staple waste hopper sensor [C] (1 connector). 8-31 A294/A295 CÓPIA NÃO CONTROLADA...
Page 550: Stapler Rotation Hp And Stapler Return Sensors
2. Remove the stapler bracket [A] (4 screws, 2 springs). Stapler Rotation HP Sensor 3. Replace the stapler rotation HP sensor [B] (1 connector). Stapler Return Sensor 3. Replace the stapler return sensor [C] (1 connector). A294/A295 8-32 CÓPIA NÃO CONTROLADA...
Page 551: Stapler Removal
CÓPIA NÃO CONTROLADA STAPLER REMOVAL 4.5 STAPLER REMOVAL B302R518.WMF 1. Open the front door and pull out the staple tray. 2. Remove the stapler unit harness cover [A]. 3. Remove the stapler [B] (1 screw, 2 connectors). 8-33 A294/A295 CÓPIA NÃO CONTROLADA...
Page 552: Punch Position Adjustment
The optional punch units have the following 3 spacers as accessories. 1 mm thickness: 2 pcs 2 mm thickness: 1 pc The punch position can be adjusted by up to 4 mm by combinations of the 3 spacers. A294/A295 8-34 CÓPIA NÃO CONTROLADA...
Page 553: Rom History
• (A295 w/B302 only) Mistake-stapling, mistake- jogging, R2 Jam, R6 Jam. Corrects the following: B3025103 E April ’00 production • (A295 w/B302 only) Tab paper stack failure, exit paper jam in different paper length paper shift. 8-35 A294/A295 CÓPIA NÃO CONTROLADA...
Page 554 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 555: Large Capacity Tray B303
CÓPIA NÃO CONTROLADA LARGE CAPACITY TRAY B303 CÓPIA NÃO CONTROLADA...
Page 556 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 557: Overall Machine Information
Paper Feed System: Remaining Paper Detection: 4 steps Power Source: 24 Vdc, 5 Vdc (from copier) Power Consumption: 55 W Weight: 78.8 kg Size (W x D x H): 540 mm x 730 mm x 980 mm A294/A295 CÓPIA NÃO CONTROLADA...
Page 558: Mechanical Component Layout
9. Paper Feed Roller 3. Separation Roller Solenoid 10. Grip Roller 4. Paper Tray 11. Relay Roller 5. Paper Height Sensors 12. Relay Sensor 6. Tray Drive Belt 13. Pick-up Solenoid 7. Pick-up Roller 14. Lift Sensor A294/A295 CÓPIA NÃO CONTROLADA...
Page 559 1st tray is in the machine. 2nd Paper Size Detects the paper size in the 2nd tray, and whether the 2nd tray is in the machine. 3rd Paper Size Detects whether the 3rd tray is in the machine. A294/A295 CÓPIA NÃO CONTROLADA...
Page 560 Controls up-down movement of the separation roller SOL5 Roller in the 2nd tray. 3rd Separation Controls up-down movement of the separation roller SOL6 Roller in the 3rd tray. PCBs PCB1 Main Controls the LCT and communicates with the copier. A294/A295 CÓPIA NÃO CONTROLADA...
Page 561: Drive Layout
3. LCT Motor 10. Transport Rollers 4. Tray Drive Shaft 11. Relay Roller Drive Belt 5. Pick-up Roller 12. Grip Roller Clutch 6. Tray Drive Belt 13. Paper Feed Clutch 7. Separation Roller 14. Transport Clutch A294/A295 CÓPIA NÃO CONTROLADA...
Page 562: Detailed Descriptions
2,500 sheets of paper. All feed stations use an FRR paper feed system (paper feed roller [A], separation roller [B], pick-up roller [C]), and those rollers are driven by the LCT motor via the paper feed clutch [D]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 563: Pick-Up And Feed
Then the gear [A] transmits the drive to the pick-up [C], paper feed [D] and separation [E] rollers via gears and the paper feed clutch [F]. The gear [A] also transmits the drive to the grip roller [G] via gears and the grip roller clutch [H]. A294/A295 CÓPIA NÃO CONTROLADA...
Page 564: Pick-Up And Feed
When the paper feed sensor [H] detects the leading edge of the paper, the pick-up solenoid de-energizes to lift the pick-up roller [F], and the grip roller clutch [I] energizes to feed the paper out of the tray. A294/A295 CÓPIA NÃO CONTROLADA...
Page 565: Separation Roller Release
After paper feed, the paper feed clutch tuns off, but the LCT motor still turns the separation roller [A] in reverse. The separation roller, still contacting the feed roller, turns the feed roller in reverse for 100 ms. Then the separation solenoid turns off. A294/A295 CÓPIA NÃO CONTROLADA...
Page 566: Paper Lift
When pulling out the tray, the coupling gear [B] separates from the pin [C], so that the tray bottom plate moves downward. In the bottom tray, the damper [J] lets the tray bottom plate drop slowly. A294/A295 9-10 CÓPIA NÃO CONTROLADA...
Page 567: Lift Sensor
[D] activates the lift sensor [E] to stop the lift motor. After several paper feeds, the paper level gradually lowers then the lift sensor is de-activated and the lift motor turns on again until the lift sensor is activated again. 9-11 A294/A295 CÓPIA NÃO CONTROLADA...
Page 568: Paper Size Detection
CPU determines the paper size by the combination. The bottom tray has the same switch as the top and middle trays. However, it is only used for detecting when the tray is pushed in. A294/A295 9-12 CÓPIA NÃO CONTROLADA...
Page 569: Paper End Detection
When the paper tray runs out of paper, the paper end sensor does not receive the reflected light due to the cutout [B]. Then, the tray lift motor rotates backwards 2 seconds to drop the tray bottom plate. 9-13 A294/A295 CÓPIA NÃO CONTROLADA...
Page 570: Replacement And Adjustment
2. While lifting the top cover, remove the snap ring [C] and front door [D]. Rear Cover 1. Remove the rear cover [E] (6 screws). Right Cover 1. Remove the right cover [F] (6 screws). A294/A295 9-14 CÓPIA NÃO CONTROLADA...
Page 571: Inner Cover Removal
1. Remove the right cover. 2. Remove the tray for the paper feed unit that will be removed. 3. Remove the upper and lower inner covers. 4. Remove the paper feed unit [D] (2 connectors and 2 screws). 9-15 A294/A295 CÓPIA NÃO CONTROLADA...
Page 572: Paper Feed Roller Replacement
LCT. They are not interchangeable. 2) Do not touch the surface of the rollers with bare hands. Note that there are counters for these rollers that you may wish to reset after installing a new roller (A294: SP 7-816). A294/A295 9-16...
Page 573: Lct Motor Replacement
LCT MOTOR REPLACEMENT 3.4 LCT MOTOR REPLACEMENT B303R109.WMF 1. Remove the rear cover. 2. Remove the spring [A] and disconnect the connector [B]. 3. Remove the motor bracket with the LCT motor [C] (6 screws). 9-17 A294/A295 CÓPIA NÃO CONTROLADA...
Page 574: Relay Sensor Replacement
CÓPIA NÃO CONTROLADA RELAY SENSOR REPLACEMENT 3.5 RELAY SENSOR REPLACEMENT B303R105.WMF 1. Disconnect the LCT from the copier. 2. Remove the bracket [A] (1 screw). 3. Replace the relay sensor [B] (1 connector). A294/A295 9-18 CÓPIA NÃO CONTROLADA...
Page 575: Paper Height Sensor And Paper Size Switch Replacement
2. Remove the right cover. 3. Remove the bracket [A] (1 screw and 4 connectors) with the paper height sensors. 4. Replace the paper height sensors [B]. 5. Replace the paper size switch [C] (1 connector). 9-19 A294/A295 CÓPIA NÃO CONTROLADA...
Page 576: Main Drive Belt Replacement
CÓPIA NÃO CONTROLADA MAIN DRIVE BELT REPLACEMENT 3.7 MAIN DRIVE BELT REPLACEMENT B303R107.WMF Route the main drive belt [A] as shown in the illustration, when the main drive belt is removed. A294/A295 9-20 CÓPIA NÃO CONTROLADA...
Page 577: Side Registration Adjustment
SP mode. 1. Pull out the tray. 2. Change the screw positions [A] at both the right and left sides as shown. Adjustment range: 0 ± 2.0 mm adjustment step: 1.0 mm/step 9-21 A294/A295 CÓPIA NÃO CONTROLADA...
Page 578 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 579 CÓPIA NÃO CONTROLADA A3/DLT TRAY KIT B331 CÓPIA NÃO CONTROLADA...
Page 580 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 581: Overall Machine Information
Paper Size: 52 to 163 g/m Paper Weight: 16 to 40 lbs Bond 50 to 60 lbs Cover 90 lbs Index (no Tab) Tray Capacity: 1,000 sheets (80 g/m , 20lb) Remaining Paper Detection: No detection 10-1 A294/A295 CÓPIA NÃO CONTROLADA...
Page 582: Detailed Descriptions
[A] is lifted through the tray wires [B] by the lift motor [C] rotation. There is no remaining paper capacity detection. The operation panel LCD displays “full” whether there is paper in the tray. Except for the above matter, refer to the main copier tandem LCT section for details. A294/A295 10-2 CÓPIA NÃO CONTROLADA...
Page 583: Replacement And Adjustment
[B]). 4. Remove the wire cover [C] (1 E-ring each). 5. Remove the bracket [D] (1 screw, 1 E-ring, and 1 bushing). 6. Remove the gear [E]. 7. Replace the bottom plate lift wire [F]. 10-3 A294/A295 CÓPIA NÃO CONTROLADA...
Page 584 NOTE: When re-installing the bottom plate lift wire: 1) Set the positioning pin [A] in the hole [B] and set the projection [C] in the hole [D]. 2) Position the wire as shown [E]. 3) Do not cross the wires. A294/A295 10-4 CÓPIA NÃO CONTROLADA...
Page 585: Differences From The A294 I/A295 I Models
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I/A295 I MODELS CÓPIA NÃO CONTROLADA...
Page 586 CÓPIA NÃO CONTROLADA CÓPIA NÃO CONTROLADA...
Page 587: Detailed Section Descriptions
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS DIFFERENCES FROM THE A294 I / A295 I MODELS 1. DETAILED SECTION DESCRIPTIONS 1.1 TONER AND DEVELOPER The toner and developer have been changed over to a finer-grained type.
Page 588: Development Unit
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 1.3 DEVELOPMENT UNIT 1. Grounding of the development roller doctor blade. This is to further ensure that the development roller surface stays clean, i.e. the development bias is properly maintained at the target level.
Page 589: Toner Bank Unit
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 1.4 TONER BANK UNIT 1. The toner bottle gear has been modified so that it is not possible to set the existing toner bottle. Only the new bottle can be set.
Page 590: Fusing Unit
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 1.6 FUSING UNIT 1. Web length increased The length of the web [A] has been increased from 10m to 20m. This new 20m web cannot be installed on the A294/A295 models, as there have been changes in the machine’s frame.
Page 591: New Additions To Transfer Current Control
Compared to the 2 predecessor A294 I / A295 I models, this can have the effect of slightly reducing the image density in solid image areas 10mm from the leading edge (no effect on text and halftone).
Page 592: Charge Corona Unit
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 1.8 CHARGE CORONA UNIT Since changes made to the development bias have the effect of decreasing the consistency of the charge applied to the drum, the following charge corona unit modifications were applied to ensure even charging: 1.
Page 593: Software
1.10 SOFTWARE The firmware is common for the new and predecessor models. The modified I/O board detects whether or not the machine is an A294 I / A295 I or an A294 II / A295 II. Please note the following 3 points: 1.
Page 594 CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS SC591 (Toner Supply Motor Lock): Detection: The toner supply pump sensor status or development suction pump sensor does not change for 1 second while drive is being supplied to one of the pumps.
Page 595: Service Tables
DIFFERENCES FROM THE A294 I / A295 I MODELS 2. SERVICE TABLES 2.1 SERVICE PROGRAM MODE NOTE: 4) [A294 I], [A295 I], [A294 II] and [A295 II] in the Settings column mean the following product types: [A294 I]: Existing 85 cpm model. [A295 I]: Existing 105 cpm model.
Page 596 CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS Mode No. Function Settings (Class 1, 2 and 3) 1-902 Web Motor Control Web Near End Changes the web consumption ratio at 0 ~ 105 Setting which web near end is displayed.
Page 597 CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS Mode No. Function Settings (Class 1, 2 and 3) 2-911 Transfer Current On/Off Timing Lb (On/Off Adjusts the transfer current on/off [A294/A295 II] exchange exchange timing. 0 ~ +60...
Page 598 CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS Mode No. Function Settings (Class 1, 2 and 3) 2-971 Collected Toner Level Check Toner Suction Displays whether the toner suction motor 0: Not needed Motor needs to be replaced or not.
Page 599: Preventive Maintenance Schedule
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 3. PREVENTIVE MAINTENANCE SCHEDULE 3.1 PM PARTS Symbol key: R, r: Replace on a PM part counter basis (refer to Service Tables – PM Counter) R: The counter counts up every copy, in the same way as the copy counter...
Page 600: Troubleshooting
CÓPIA NÃO CONTROLADA DIFFERENCES FROM THE A294 I / A295 I MODELS 4. TROUBLESHOOTING 4.1 SERVICE CALL CONDITIONS 4.1.1 SC CODE DESCRIPTIONS SC496: Toner Collection Bottle Error Definition [B] The used toner collection bottle or sucked toner collection bottle sensor remains off for 3 seconds.

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A295

Gestetner A294 Service Manual

Overall Information

Overall Machine Information

Detailed Descriptions

Detailed Section Descriptions

Installation

Installation Procedure

Service Tables

Preventive Maintenance

Preventive Maintenance Schedule

Replacement and Adjustment

Quick Links

SERVICE MANUAL

Troubleshooting

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