Ricoh fax4700l User manual

FX4
RICOH FAX4700L
SERVICE MANUAL
December 21st, 1995
Subject to change

IWARNING
THIS MACHINE CONTAINS A LASER BEAM GENERATOR. LASER
BEAMS CAN CAUSE PERMANENT EYE DAMAGE. DO NOT OPEN THE
LASER UNIT OR LOOK ALONG THE LASER BEAM PATH WHILE THE
MAIN POWER IS ON.
Lithium Batteries (Memory Back-up)
ICAUTION
The danger of explosion exists if a battery of this type is incorrectly
replaced. Replace only with the same or an equivalent type
recommended by the manufacturer. Discard used batteries in
accordance with the manufacturer’s instructions.

Table of Contents
1. OVERALL MACHINE INFORMATION
1.1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . 1-1
1.2. FEATURES . . . . . . . . . . . . . . . . . . . . . 1-2
1.2.1. Features List . . . . . . . . . . . . . . . . . . . 1-2
1.2.2. Capabilities of Programmable Items . . . . . . . . . . 1-6
1.2.3. Possible Combinations of Optional Equipment . . . . . . 1-7
1.3. COMPONENT LAYOUT . . . . . . . . . . . . . . . . 1-8
1.3.1. Mechanical Components . . . . . . . . . . . . . . 1-8
1.3.2. Electrical Components . . . . . . . . . . . . . . . 1-10
1. PCBs . . . . . . . . . . . . . . . . . . . . . . 1-11
2. Motors . . . . . . . . . . . . . . . . . . . . . . 1-11
3. Sensors . . . . . . . . . . . . . . . . . . . . . 1-12
4. Interlock Switches . . . . . . . . . . . . . . . . . 1-12
5. Others . . . . . . . . . . . . . . . . . . . . . . 1-12
6. Optional Equipment . . . . . . . . . . . . . . . . 1-13
1.4. OVERALL MACHINE CONTROL . . . . . . . . . . . . 1-14
1.5. VIDEO DATA PATH . . . . . . . . . . . . . . . . . . 1-16
1.5.1. Transmission (PSTN) . . . . . . . . . . . . . . . 1-16
1.5.2. Reception (PSTN) . . . . . . . . . . . . . . . . . 1-17
1.5.3. Transmission (ISDN) . . . . . . . . . . . . . . . . 1-18
1.5.4. Reception (ISDN) . . . . . . . . . . . . . . . . . 1-19
1.5.5. Copying . . . . . . . . . . . . . . . . . . . . . 1-20
1.5.6. Printing from the Optional Printer Interface . . . . . . . 1-21
1.6. POWER DISTRIBUTION . . . . . . . . . . . . . . . . 1-22
1.6.1. Distribution Diagram . . . . . . . . . . . . . . . . 1-22
1.6.2. Memory Back-up Circuit . . . . . . . . . . . . . . 1-24
1. SRAM/Real Time Clock (RTC) Backup . . . . . . . . . 1-24
2. DRAM Backup . . . . . . . . . . . . . . . . . . 1-25
2. DETAILED SECTION DESCRIPTIONS
2.1. SCANNER . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1. Mechanisms . . . . . . . . . . . . . . . . . . . 2-1
1. Document Detection . . . . . . . . . . . . . . . . 2-1
2. Pick-up and Separation . . . . . . . . . . . . . . . 2-2
3. Drive Mechanism . . . . . . . . . . . . . . . . . 2-3
4. Stamping . . . . . . . . . . . . . . . . . . . . . 2-5
2.1.2. Image Scanning * . . . . . . . . . . . . . . . . . 2-6
1. Sub Scan Resolution Conversion . . . . . . . . . . . 2-6
2. Partial Image Scanning * . . . . . . . . . . . . . . 2-7
3. Scanning Double-sided Documents * . . . . . . . . . . 2-8

2.1.3. Video Processing * . . . . . . . . . . . . . . . . 2-10
2.1.4. Shading Correction and A/D Conversion * . . . . . . . 2-11
2.1.5. Process without Halftone * . . . . . . . . . . . . . 2-11
1. Background Detection . . . . . . . . . . . . . . . . 2-11
2. MTF . . . . . . . . . . . . . . . . . . . . . . . 2-11
3. Thresholding . . . . . . . . . . . . . . . . . . . 2-11
4. Erasure of irregular dots . . . . . . . . . . . . . . . 2-11
5. OR processing . . . . . . . . . . . . . . . . . . 2-12
2.1.6. Process with Halftone * . . . . . . . . . . . . . . . 2-12
1. Gamma correction . . . . . . . . . . . . . . . . . 2-12
2. MTF . . . . . . . . . . . . . . . . . . . . . . . 2-12
3. Halftone process . . . . . . . . . . . . . . . . . . 2-12
2.1.7. Data Switching * . . . . . . . . . . . . . . . . . 2-12
2.1.8. Inch-mm Conversion . . . . . . . . . . . . . . . . 2-13
2.2. PRINTING . . . . . . . . . . . . . . . . . . . . . . 2-14
2.2.1. Printing Process - Overview . . . . . . . . . . . . . 2-14
2.2.2. OPC Drum . . . . . . . . . . . . . . . . . . . . 2-15
2.2.3. Charge * . . . . . . . . . . . . . . . . . . . . 2-15
2.2.4. Laser Exposure . . . . . . . . . . . . . . . . . . 2-17
1. Overview * . . . . . . . . . . . . . . . . . . . . 2-17
2. Block Diagram . . . . . . . . . . . . . . . . . . . 2-18
3. Error Conditions * . . . . . . . . . . . . . . . . . 2-18
4. Print Density Adjustment . . . . . . . . . . . . . . . 2-19
5. Toner Saving Mode . . . . . . . . . . . . . . . . . 2-19
2.2.5. Toner Supply . . . . . . . . . . . . . . . . . . . 2-20
2.2.6. Development . . . . . . . . . . . . . . . . . . . 2-23
2.2.7. Paper Feed . . . . . . . . . . . . . . . . . . . 2-28
1. Overview * . . . . . . . . . . . . . . . . . . . . 2-28
2. Paper Lift Mechanism . . . . . . . . . . . . . . . . 2-29
3. Paper Size and Paper End Detection . . . . . . . . . . 2-30
4. Pick-up and Separation . . . . . . . . . . . . . . . 2-32
5. Drive Mechanism * . . . . . . . . . . . . . . . . . 2-32
2.2.8. Registration * . . . . . . . . . . . . . . . . . . . 2-35
2.2.9. Transfer and Separation . . . . . . . . . . . . . . 2-37
2.2.10. Cleaning . . . . . . . . . . . . . . . . . . . . 2-40
2.2.11. Fusing . . . . . . . . . . . . . . . . . . . . . 2-41
2.2.12. Page Separation and Data Reduction . . . . . . . . 2-45
2.2.13. Resolution Unit Selection for Printing * . . . . . . . . 2-47
2.2.14. Paper Size Selection * . . . . . . . . . . . . . . 2-47
2.3. SYSTEM FEATURES . . . . . . . . . . . . . . . . . 2-48
2.3.1. Energy Saver Modes * . . . . . . . . . . . . . . . 2-48
1. Going into a Energy Saver Mode . . . . . . . . . . . 2-49
2. Going into Level 2 Mode from Level 1 Mode * . . . . . . 2-51
3. Receiving a Fax Message in Energy Saver Mode . . . . . 2-53
4. Sending a Fax Message or Copying in Energy Saver Mode . 2-55

2.3.2. Automatic Service Calls . . . . . . . . . . . . . . 2-57
1. Service Call Conditions . . . . . . . . . . . . . . . 2-57
2. Excessive Jam Alarms * . . . . . . . . . . . . . . . 2-58
3. Periodic Service Call * . . . . . . . . . . . . . . . 2-59
4. PM Call * . . . . . . . . . . . . . . . . . . . . . 2-60
5. Effective Term of Service Calls * . . . . . . . . . . . . 2-60
2.3.3. Parallel Memory Transmission * . . . . . . . . . . . 2-61
2.3.4. Transfer Broadcasting * . . . . . . . . . . . . . . . 2-63
2.3.5. Fax On Demand * . . . . . . . . . . . . . . . . . 2-66
2.3.6. Hard Disk Filing System * . . . . . . . . . . . . . . 2-68
2.4. PCBs . . . . . . . . . . . . . . . . . . . . . . . 2-69
2.4.1. MFCE * . . . . . . . . . . . . . . . . . . . . . 2-69
2.4.2. MFDU . . . . . . . . . . . . . . . . . . . . . 2-72
2.4.3. PSU . . . . . . . . . . . . . . . . . . . . . . 2-74
2.4.4. NCU (USA) . . . . . . . . . . . . . . . . . . . 2-74
2.4.5. NCU (Europe/Asia) . . . . . . . . . . . . . . . . 2-75
3. INSTALLATION *
3.1. INSTALLING THE MACHINE . . . . . . . . . . . . . . 3-1
3.2. INITIAL PROGRAMMING * . . . . . . . . . . . . . . . 3-1
3.3. INSTALLING OPTIONAL UNITS . . . . . . . . . . . . . 3-2
3.3.1. Feature Expander Type 140 (80MB Hard Disk) * . . . . . 3-2
3.3.2. ISDN G4 Interface * . . . . . . . . . . . . . . . . 3-4
3.3.3. Fax on Demand * . . . . . . . . . . . . . . . . . 3-6
3.3.4. Counter * . . . . . . . . . . . . . . . . . . . . 3-7
3.3.5. Printer Interface * . . . . . . . . . . . . . . . . . 3-8
3.3.6. Important Notice for the Function Upgrade Card and
Fax On Demand Card * . . . . . . . . . . . . . . . 3-10
4. SERVICE TABLES AND PROCEDURES
4.1. SERVICE LEVEL FUNCTIONS * . . . . . . . . . . . . . 4-1
4.1.1. Bit Switch Programming (Function 01) . . . . . . . . . 4-1
4.1.2. Group 3 System Parameter List (Function 02) . . . . . . 4-2
4.1.3. Error Code Display (Function 03) . . . . . . . . . . . 4-4
4.1.4. Service Monitor Report (Function 04) . . . . . . . . . 4-4
4.1.5. Group 3 Protocol Dump (Function 05) . . . . . . . . . 4-4
4.1.6. RAM Display/Rewrite (Function 06) . . . . . . . . . . 4-5
4.1.7. RAM Dump (Function 06) . . . . . . . . . . . . . . 4-5
4.1.8. Counter Display/Rewrite (Function 07) . . . . . . . . . 4-6
4.1.9. Modem Test (Function 08) . . . . . . . . . . . . . . 4-7
4.1.10. DTMF Tone Test (Function 08) . . . . . . . . . . . 4-7
4.1.11. NCU Parameters (Function 08) . . . . . . . . . . . 4-8
4.1.12. Modem Detection Test (Function 08) . . . . . . . . . 4-8

4.1.13. Ringer Test (Function 08) . . . . . . . . . . . . . 4-9
4.1.14. Operation Panel Test (Function 09) . . . . . . . . . 4-10
4.1.15. Xenon Lamp Test (Function 10) . . . . . . . . . . . 4-10
4.1.16. ADF Test (Function 10) . . . . . . . . . . . . . . 4-11
4.1.17. Printer Test Patterns (Function 11) . . . . . . . . . . 4-11
4.1.18. Scanner and Printer Mechanism Test - Free Run
(Function 11) . . . . . . . . . . . . . . . . . . 4-12
4.1.19. RAM Tests (Function 12) . . . . . . . . . . . . . . 4-12
4.1.20. Software Download (Function 12) . . . . . . . . . . 4-13
4.1.21. Software Upload (Function 12) . . . . . . . . . . . 4-15
4.1.22. SRAM Data Download (Function 12) . . . . . . . . . 4-17
4.1.23. Saving Data Programmed in IC Cards . . . . . . . . 4-18
1. When downloading/uploading software . . . . . . . . . 4-18
2. When replacing the MFCE . . . . . . . . . . . . . . 4-19
3. When replacing the MFDU or other components . . . . . 4-20
4.1.24. Service Station Fax Number (Function 13) . . . . . . . 4-20
4.1.25. Serial Number (Function 14) . . . . . . . . . . . . 4-21
4.1.26. Hard Disk Initialization (Function 16) . . . . . . . . . 4-21
4.1.27. Hard Disk Formatting (Function 16) . . . . . . . . . 4-22
4.1.28. Hard Disk Test (Function 16) . . . . . . . . . . . . 4-22
4.1.29. G4 Parameter Programming (Function 17) . . . . . . . 4-23
4.1.30. Printing Confidential Files . . . . . . . . . . . . . 4-23
4.2. BIT SWITCHES . . . . . . . . . . . . . . . . . . . 4-24
4.2.1. System Switches . . . . . . . . . . . . . . . . . 4-24
4.2.2. Scanner Switches . . . . . . . . . . . . . . . . 4-36
4.2.3. Printer Switches . . . . . . . . . . . . . . . . . 4-38
4.2.4. Communication Switches . . . . . . . . . . . . . . 4-41
4.2.5. G3 Switches . . . . . . . . . . . . . . . . . . . 4-49
4.3. NCU PARAMETERS . . . . . . . . . . . . . . . . . 4-56
4.4. DEDICATED TRANSMISSION PARAMETERS . . . . . . . 4-81
4.4.1. Programming Procedure . . . . . . . . . . . . . . 4-81
4.4.2. Parameters . . . . . . . . . . . . . . . . . . . 4-82
4.5. SERVICE RAM ADDRESSES . . . . . . . . . . . . . . 4-85
4.6. SPECIAL TOOLS AND LUBRICANTS . . . . . . . . . . 4-101
4.7. PM TABLE . . . . . . . . . . . . . . . . . . . . . 4-102
5. REPLACEMENT AND ADJUSTMENT
5.1. COVERS . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1. Document Table and Tray . . . . . . . . . . . . . . 5-1
5.1.2. Rear Cover Assembly . . . . . . . . . . . . . . . 5-2
5.1.3. Left Cover . . . . . . . . . . . . . . . . . . . . 5-2
5.1.4. Right Cover . . . . . . . . . . . . . . . . . . . 5-3
5.1.5. Operation Panel Assembly . . . . . . . . . . . . . 5-3
5.1.6. Top Cover . . . . . . . . . . . . . . . . . . . . 5-4

5.2. ADF . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5.2.1. ADF Roller Assembly . . . . . . . . . . . . . . . . 5-5
5.2.2. Separation Rubber Plate . . . . . . . . . . . . . . 5-5
5.2.3. Separation Pressure Adjustment . . . . . . . . . . . 5-6
5.2.4. ADF Sensors . . . . . . . . . . . . . . . . . . . 5-6
5.3. SCANNER . . . . . . . . . . . . . . . . . . . . . 5-8
5.3.1. Exposure Glass . . . . . . . . . . . . . . . . . . 5-8
5.3.2. R1/R2 Rollers . . . . . . . . . . . . . . . . . . 5-8
5.3.3. Xenon Lamp . . . . . . . . . . . . . . . . . . . 5-9
5.3.4. Tx Motor . . . . . . . . . . . . . . . . . . . . 5-10
5.3.5. Mirrors . . . . . . . . . . . . . . . . . . . . . 5-10
5.3.6. Stamper . . . . . . . . . . . . . . . . . . . . . 5-11
5.4. LASER PRINTING COMPONENTS . . . . . . . . . . . 5-12
5.4.1. Laser Unit . . . . . . . . . . . . . . . . . . . . 5-12
5.4.2. Laser Diode Unit and Hexagonal Mirror Motor . . . . . . 5-13
5.5. DEVELOPMENT . . . . . . . . . . . . . . . . . . . 5-14
5.5.1. Development Unit . . . . . . . . . . . . . . . . . 5-14
5.5.2. Transfer Roller . . . . . . . . . . . . . . . . . . 5-15
5.5.3. Main Motor and Gears . . . . . . . . . . . . . . . 5-15
5.5.4. Toner End Sensor . . . . . . . . . . . . . . . . . 5-16
5.5.5. Replacing the Development Unit . . . . . . . . . . . 5-17
5.6. FUSING . . . . . . . . . . . . . . . . . . . . . . 5-20
5.6.1. Thermistor . . . . . . . . . . . . . . . . . . . . 5-20
5.6.2. Fusing Unit . . . . . . . . . . . . . . . . . . . 5-20
5.6.3. Hot Roller Strippers . . . . . . . . . . . . . . . . 5-22
5.6.4. Fusing Lamp . . . . . . . . . . . . . . . . . . . 5-22
5.6.5. Hot Roller . . . . . . . . . . . . . . . . . . . . 5-23
5.6.6. Pressure Roller . . . . . . . . . . . . . . . . . . 5-25
5.6.7. Thermostat and Thermofuse . . . . . . . . . . . . . 5-25
5.7. PAPER FEED . . . . . . . . . . . . . . . . . . . . 5-26
5.7.1. Paper Feed Motor and Clutch Box . . . . . . . . . . 5-26
5.7.2. Paper End Sensor . . . . . . . . . . . . . . . . . 5-26
5.7.3. Paper Feed Rollers, Paper Size Sensor, By-pass Feed Sensor,
and Relay Connector . . . . . . . . . . . . . . . 5-27
5.7.4. Registration Roller and Bypass Feed Sensor Actuator . . . 5-28
5.8. PCBs . . . . . . . . . . . . . . . . . . . . . . . 5-29
5.8.1. PSU . . . . . . . . . . . . . . . . . . . . . . 5-29
5.8.2. NCU, MFDU, and MFCE . . . . . . . . . . . . . . 5-30
5.8.3. Power Pack . . . . . . . . . . . . . . . . . . . 5-31
5.9. OTHERS . . . . . . . . . . . . . . . . . . . . . . 5-32
5.9.1. Ozone Filter and Fan Motor . . . . . . . . . . . . . 5-32
5.9.2. Speaker . . . . . . . . . . . . . . . . . . . . . 5-32
5.10. 100 SHEET PAPER CASSETTE (OPTIONAL) . . . . . . . 5-33
5.10.1. Relay Connector and Gear Cover . . . . . . . . . . 5-33
5.10.2. Paper End Sensor and Drive Components . . . . . . . 5-33
5.10.3. Paper Size Sensor . . . . . . . . . . . . . . . . 5-34

5.11. SBU ADJUSTMENT . . . . . . . . . . . . . . . . . 5-35
5.11.1. Replacement . . . . . . . . . . . . . . . . . . 5-35
5.11.2. Tools Required . . . . . . . . . . . . . . . . . . 5-35
5.11.3. Preparation . . . . . . . . . . . . . . . . . . . 5-35
5.11.4.Adjustment . . . . . . . . . . . . . . . . . . . 5-36
5.12. IMAGE ADJUSTMENT . . . . . . . . . . . . . . . . 5-40
5.12.1. Overview . . . . . . . . . . . . . . . . . . . . 5-40
5.12.2. Scanner Parameters . . . . . . . . . . . . . . . 5-41
1. Contrast . . . . . . . . . . . . . . . . . . . . . 5-41
2. Margins . . . . . . . . . . . . . . . . . . . . . 5-41
5.12.3. Printer Parameters . . . . . . . . . . . . . . . . 5-42
1. Margins (Main Scan Direction) . . . . . . . . . . . . 5-42
2. Margins (Sub Scan Direction) . . . . . . . . . . . . . 5-43
6. TROUBLESHOOTING
6.1. COPY QUALITY TROUBLESHOOTING . . . . . . . . . . 6-1
6.1.1. Blank Copies . . . . . . . . . . . . . . . . . . . 6-2
6.1.2. Black Copies * . . . . . . . . . . . . . . . . . . 6-3
6.1.3. Dirty Background . . . . . . . . . . . . . . . . . 6-4
6.1.4. Uneven Image Density * . . . . . . . . . . . . . . 6-5
6.1.5. Vertical Black Lines * . . . . . . . . . . . . . . . . 6-6
6.1.6. Horizontal Black Lines . . . . . . . . . . . . . . . 6-7
6.1.7. Vertical White Lines . . . . . . . . . . . . . . . . 6-8
6.1.8. Horizontal White Lines . . . . . . . . . . . . . . . 6-9
6.1.9. Black Dots/Spots * . . . . . . . . . . . . . . . . . 6-10
6.1.10. White Spots in Black Image Areas . . . . . . . . . . 6-11
6.1.11. Faint Copies * . . . . . . . . . . . . . . . . . . 6-12
6.1.12. Vertical Black Band . . . . . . . . . . . . . . . . 6-14
6.1.13. Unfused Copies . . . . . . . . . . . . . . . . . 6-15
6.1.14. Ghost Image . . . . . . . . . . . . . . . . . . 6-15
6.1.15. Toner on the Back of the Printer Paper . . . . . . . . 6-16
6.1.16. Misaligned Output (Data shifted to the right or left) . . . 6-17
6.1.17. Misaligned Output (Image shifted vertically)/Reduced Image 6-17
6.2. MECHANICAL PROBLEMS . . . . . . . . . . . . . . 6-18
6.2.1.ADF/Scanner . . . . . . . . . . . . . . . . . . . 6-18
1. Non Feed * . . . . . . . . . . . . . . . . . . . . 6-18
2. Jam . . . . . . . . . . . . . . . . . . . . . . . 6-19
3. Skew . . . . . . . . . . . . . . . . . . . . . . 6-20
4. Multi-feed . . . . . . . . . . . . . . . . . . . . 6-20
6.2.2. Printer . . . . . . . . . . . . . . . . . . . . . 6-21
1. Non-feed * . . . . . . . . . . . . . . . . . . . . 6-21
2. Paper Jam - Inside the Printer * . . . . . . . . . . . . 6-22
3. Jam - Fusing Exit . . . . . . . . . . . . . . . . . 6-23
4. Skew . . . . . . . . . . . . . . . . . . . . . . 6-24
5. Multi-feed . . . . . . . . . . . . . . . . . . . . 6-25

6.3. SERVICE CALL CONDITIONS * . . . . . . . . . . . . . 6-26
6.4. ERROR CODES * . . . . . . . . . . . . . . . . . . 6-30
6.5. ELECTRICAL COMPONENT DEFECTS . . . . . . . . . 6-38
6.5.1. Defective Sensor Table * . . . . . . . . . . . . . . 6-38
6.5.2. Fuses . . . . . . . . . . . . . . . . . . . . . . 6-39

1. OVERALL MACHINE INFORMATION
1.1. SPECIFICATIONS
Type
Desktop type transceiver
Circuit
PSTN, PABX, ISDN (optional)
Connection
Direct couple
Document Size
Length:
105 - 420 mm [4.1 - 16.5 ins]
Up to 1.2 m [47.2 ins], manually assisted
Up to 14 m [46 ft] after adjustment
Width:
148 - 304 mm [5.8 - 12.0 ins]
Thickness:
0.05 to 0.2 mm [2 to 8 mils]
(equivalent to 50 - 80 g/m2)
Document Feed
Automatic feed, face down
ADF Capacity
50 sheets (using Letter size 20 lb paper or
A4 size 70 g/m2paper)
25 sheets (using Legal/Double Letter size
20 lb paper or B4/A3 size 70 g/m2paper)
Scanning Method
Flat bed, with CCD
Scan Width
219.5 mm [8.64 ins] ±1% (A4/Letter)
260.1 mm [10.2 ins] ±1% (B4)
308.9 mm [12.2 ins] ±1% (A3/Double Letter)
Scan Resolutions
Main scan: 200 dpi
Sub scan:
Standard - 100 lpi
Detail - 200 lpi
Fine - 400 lpi
Memory Capacity
ECM: 128 kbytes
SAF:
Standard: 1 Mbytes: 73 pages
With 2 Mbyte option: 219 pages
With 4 Mbyte option: 365 pages
With 80 Mbyte HDD option: 1200 pages
With 80 Mbyte HDD plus Function Up-
grade Card: 3000 pages
Measured using ITU-T #1 test document
(Slerexe letter)
Compression
MH, MR, EFC, MMR, SSC (MMR only with
ECM and G4)
SAF storage for memory tx: MMR and raw
data
Protocol
Group 3 with ECM
Group 4 (ISDN G4 option required)
Modulation
V.33/V.17(TCM), V.29 (QAM), V.27ter
(PHM), V.21 (FM)
Data Rate (bps)
G3: 14400/12000/9600/7200/4800/2400,
Automatic fallback
G4 (option): 64 kbps/56 kbps
I/O Rate
With ECM: 0 ms/line
Without ECM: 2.5, 5, 10, 20, or 40 ms/line
Transmission Time
G3: 6 s at 14400 bps; Measured with G3
ECM using memory for an ITU-T #1 test
document (Slerexe letter) at standard resolu-
tion
G4 (option): 3 s at 64 kbps; Measured with
an ITU-T #1 test document (Slerexe letter)
at standard resolution
Printing System
Laser printing, plain paper, dry toner
December 21st, 1995 OVERALL MACHINE INFORMATION
SPECIFICATIONS
1-1

Paper Size and Capacity
Standard Cassette: 250 sheets
USA: Letter, Legal
Europe: A4, A5 sideways
Asia: A4, A5 sideways, F/F4
100 Sheet Cassette (Optional): 100 sheets
USA: Letter, Legal
Europe: A4, A5 sideways
Asia: A4, A5 sideways, F, F4
Paper Feed Unit (Optional): 500 sheets
USA: Letter, Legal
Europe: A4, A5 sideways
Asia: A4, A5 sideways, F/F4
Note: Up to two PFUs can be installed.
Maximum Printing Width
208 mm [8.1 ins]
Print Resolutions
Fax and Copy Mode:
Main scan: 400 dpi
Sub scan: 400 dpi
Printer Mode: 300 x 300 dpi
Power Supply
USA: 115 ±20 Vac, 60 ±1 Hz
Europe/Asia: 187 - 276 Vac, 50 ±3 Hz
Power Consumption (Base Machine Only)
Standby:
Minimum 2 W (see Note)
Normal 30 W
Transmitting: 60 W
Receiving: 220 W (Maximum: 900 W)
Copying: 330 W (Maximum: 900 W)
Note: 2W mode is not available if one of the
following options is installed.
- Printer interface unit
- G4
- RS232C interface
Operating Environment
Temperature: 17 - 28 °C [63 - 82 °F]
Humidity: 40 - 70 %Rh
Dimensions (W x D x H)
475 x 520 x 260 mm [18.7 x 20.5 x 10.2 ins]
Excluding handset, trays, and optional units
Weight
Approx. 19 kg [50.9 lbs]
Excluding CTM, handset, trays, and optional
units
1.2. FEATURES
1.2.1. Features List
KEY:
O = Used, X = Not Used,
A = With optional memory 2M/4M only
B = With optional memory 80M (HDD) only
C = With optional function upgrade card only
D = With optional Fax On Demand kit only
E = With optional 100 sheet cassette only
F = With optional paper feed unit only
G = With optional counter only
H = With optional handset only (US only)
I = With optional printer interface unit only
J = With optional G4 kit only
Equipment
ADF O
Book scan X
Built-in handset X
Bypass feed: 1 sheet O
Cabinet X
Counter G
Cutter X
Handset H
Hard disk B
Manual feed mechanism (ADF) X
Marker (Stamp) O
Monitor speaker O
Optional cassette: 100 sheets E
Optional Fax On Demand kit D
Optional paper feed unit
(up to 2 units) F
Optional printer interface I
Video Processing Features
Contrast O
Halftone (Basic & Error Diffusion) O
MTF O
Reduction before tx (B4 -> A4) O
Reduction before tx (A3 -> B4) O
Reduction before tx (A3 -> A4) O
Scanning Resolution - Standard O
Scanning Resolution - Detail O
Scanning Resolution - Fine O
OVERALL MACHINE INFORMATION December 21st, 1995
FEATURES
1-2

Scanning Resolution - Superfine X
Smoothing to 400 x 400 dpi
when printing O
Communication Features - Auto
Automatic fallback O
Automatic redialing O
Confidential reception A or B
Dual Access O
Substitute reception O
Communication Features -
User Selectable
Action as a transfer broadcaster Aor B
AI Redial (last ten numbers) O
Answering machine interface X
Authorized Reception O
Auto-answer delay time X
Auto dialing (pulse or DTMF) O
Auto Document O
Auto image density selection X
Auto paper size selection X
Automatic Voice Message X
Batch Transmission (max 6 files) A or B
Broadcasting O
Chain Dialing O
Communication Result Display X
Confidential ID Override O
Confidential Reception A or B
Confidential Transmission O
Direct Fax Number Entry O
Economy Transmission A or B
Fax on demand D
Forwarding A or B
Free Polling O
Groups (7 groups) O
Group Transfer Station A or B
Hold X
ID Transmission O
Immediate Redialing O
Immediate transmission O
Keystroke Programs O
Length Reduction X
Memory transmission O
Multi-step Transfer A or B
Next Transfer Station X
OMR O
Communication Features -
User Selectable
On Hook Dial O
Ordering Toner X
Page Count O
Page separation mark O
Parallel memory transmission O
Personal Codes O
Personal Codes with Conf. ID A or B
Partial Image Area Scanning C
Polling Reception O
Polling Transmission O
Polling tx file lifetime in the SAF O
Quick Dial
(Standard: 64 stations) O
Reception modes (Fax, Tel, Auto) O
Remote control features X
Remote Transfer A or B
Restricted Access O
Secured Polling O
Secured Polling with Stored ID
Override O
Secure Transmission X
Send Later O
Silent ringing detection X
Speed Dial
(Standard: 100 stations) O
Telephone Directory O
Tonal Signal Transmission O
Transfer Request O
Transmission Deadline (TRD) A
Turnaround Polling X
Two-step Transfer X
Two in one O
Voice Request (immed. tx only) X
Communication Features -
Service Selectable
AI Short Protocol O
Auto-reduction override option O
Busy tone detection O
Cable Equalizer
PSTN
ISDN O J
Closed Network (tx and rx) O
Continuous Polling Reception O
Dedicated tx parameters O
ECM O
December 21st, 1995 OVERALL MACHINE INFORMATION
FEATURES
1-3

EFC O
Inch-mm conversion before
transmission O
mm-inch conversion when print-
ing O
Page retransmission times O
Protection against wrong conn. O
Resolutions available for recep-
tion
200 x 100 dpi
200 x 200 dpi
200 x 400 dpi
400 x 400 dpi
O
O
X
X
Resol’n stepdown override option X
Short Preamble X
Well log O
Other User Features
Area code prefix X
Automatic service call Service
Center mark O
Checkered mark O
Clearing a memory file O
Clearing a polling file O
Clock O
Confidential ID A or B
Copy editing (Erase Center/Mar-
gin) X
Copy mode O
Copy Mode Restriction O
Counters O
Daylight Saving Time O
Destination Check X
Direct entry of names O
File Retention Time O
File Retransmission B, C
Function Programs O
Hard Disk Filing System B, C
ID Code O
Label Insertion ("From xxx") O
Language Selection O
LCD contrast control Service
Memory Lock A or B
Memory Lock ID A or B
Modifying a memory file X
Multi Sort Document Reception A or B
Multicopy mode O
Own telephone number O
Other User Features
Energy Saver (Night Timer and
standby mode) O
Print density control O
Printing a memory file O
RDS on/off O
Reception Mode Switching Timer X
Reception time printing O
Reduction/Enlargement X
Remaining memory indicator O
Remote ID A , B,
or D
Reverse Order Printing A or B
RTI, TTI, CSI O
Secure ID X
Service Report Transmission O
Speaker volume control O
Specified Cassette Selection F
Substitute reception on/off O
Telephone line type O
Toner Saving Mode O
TTI/CIL on/off O
User Function Keys (5 keys) O
User Parameters O
Wild Cards O
Reports - Automatic
Charge Control Report X
Communication Failure Report O
Confidential File Report A or B
Error Report O
Fax On Demand Report D
Memory Storage Report O
Mode Change Report X
Polling Clear Report O
Polling Reserve Report O
Polling Result Report O
Power Failure Report O
TCR (Journal) O
Toner Cassette Order Form X
Transfer Result Report Aor B
Transmission Result Report O
Reports - User-initiated
Authorized Reception List O
Charge Control Report X
File List O
OVERALL MACHINE INFORMATION December 21st, 1995
FEATURES
1-4

Reports - User-initiated
Forwarding List A or B
Group List O
Hard Disk File List B, C
Personal Code List O
Program List O
Quick Dial List O
Specified Cassette Selection List B
Speed Dial List O
TCR O
Transmission Status Report X
User Function List O
User Parameter List O
Service Mode Features
Auto Paper Select test X
Back-to-back test O
Bit switch programming O
Book mode test X
Buzzer test O
Cable equalizer O
Comm. parameter display O
Counter check O
Country code O
DTMF tone test O
Echo countermeasure O
Effective term of service calls O
Error code display O
Excessive jam alarm O
File Transfer O
Hard Disk Utilities (Format etc.) B
LCD contrast adjustment O
Line error mark O
Memory file printout (all files) O
Modem test O
NCU parameters O
Operation panel test O
Periodic service call O
PM Call O
Printer mechanism test O
Printer test patterns O
Programmable attenuation X
Protocol dump list O
RAM display/rewrite O
RAM dump O
RAM test O
Ringer test O
Service Mode Features
Scanner lamp test O
Scanner mechanism test O
Sensor initialization X
Serial number O
Service monitor report O
Service station number O
Software upload/download O
SRAM data download O
System parameter list O
Technical data on the TCR O
Thermal head parameters X
Transmission Status Report X
User data transfer O
December 21st, 1995 OVERALL MACHINE INFORMATION
FEATURES
1-5

1.2.2. Capabilities of Programmable Items
The following table shows how the capability of each programmable item
changes after the optional function upgrade card is installed.
Item Standard With function
upgrade card
Maximum number of memory files plus
polling rx files 200 1000
Maximum number of memory files 200 1000
Maximum number of destinations per file 200 200
Maximum number of destinations overall 500 2000
Maximum number of pages overall 1200 3000
Number of Quick Dials 64 64
Number of Speed Dials 100 1000
Number of Groups 930
Maximum number of destinations per Group 200 200
Maximum number of destinations dialed
from the ten-key pad overall 100 1000
Maximum number of programs 64
(programmed in 64
Quick Dial keys)
164
(programmed in 64
Quick Dial keys plus
100 Speed Dial
codes)
Maximum number of destinations per
program 200 200
Maximum number of destinations used for
all programs 300 2000
Maximum number of Auto Documents 64
(programmed in 64
Quick Dial keys)
164
(programmed in 64
Quick Dial keys plus
100 Speed Dial
codes)
Maximum number of communication
records for the TCR (Journal) stored in the
memory 256 1000
Maximum number of addresses specified
for features such as Authorized Reception
and Specified Cassette Selection 30 50
Maximum number of personal codes 50 500
OVERALL MACHINE INFORMATION December 21st, 1995
FEATURES
1-6

1.2.3. Possible Combinations of Optional Equipment
The following table shows which items of optional equipment can be or can-
not be installed at the same time.
“ 4 ” in the table indicates that the two items of optional equipment can be in-
stalled at the same time.
“X” in the table indicates that the two items of optional equipment cannot be
installed at the same time.
IC Cards ABCDE
A: Feature Expander 2M/4M X✔✔4
B: Feature Expander 80M (HDD) X✔44
C: Function Upgrade Card ✔4XX
D: Fax On Demand (FOD) Card ✔4XX
E: Flash/SRAM Data Copy Tool
(Service Tool) ✔4XX
Other ABCDE
A: Paper Feed Unit Type F ✔X✔44
B: Paper Feed Unit Type S X✔444
C: 100 Sheet Cassette ✔4✔4
D: Printer Interface ✔44 ✔
E: G4 ✔444
December 21st, 1995 OVERALL MACHINE INFORMATION
FEATURES
1-7

1.3. COMPONENT LAYOUT
1.3.1. Mechanical Components
No. Name Description
1Laser Unit This consists of the LDDR (Laser Diode Driver), focusing
lens, FθLenses, hexagonal mirror motor, and other laser
optic components.
2SBU This scans the original.
3R2 Roller Feeds the document through the scanner.
4R1 Roller Feeds the document through the scanner.
5Document Feed Roller Feeds the document into the scanner.
6Separation Pad Allows one page into the scanner.
7Pick-up Roller Picks up pages of the document from the document table
one at a time.
8CTM (Cleaning Toner
Magazine) This consists of the toner cartridge, cleaning unit, used toner tank, charge corona unit, and quenching lamp.
9Hot Roller Heat from this roller fuses the toner to the copy paper.
10 Hot Roller Strippers These take the paper off the hot roller after fusing.
11 Paper Feed-out Rollers These feed the paper out of the printer.
12 Fusing Pressure Roller This applies pressure to the paper during the fusing
process.
13 OPC Drum The latent image is written to this organic photoconductor
drum.
14 Transfer Roller This applies a charge to the paper to pull the toner off the
drum and onto the copy paper.
15 Registration Roller This carries out the registration process.
17 18
1
2
3
4
5
6
87
10
14
9
12
11
13
15 16
H515V001.wmf
OVERALL MACHINE INFORMATION December 21st, 1995
COMPONENT LAYOUT
1-8

No. Name Description
16 Development Unit This consists of the development roller, toner application
roller, toner supply bar, and transfer roller.
17 Paper Feed Rollers These pick up the top sheet of paper from the stack in the
cassette and feed it into the printer.
18 Cassette (Standard) This holds up to 250 sheets of paper.
December 21st, 1995 OVERALL MACHINE INFORMATION
COMPONENT LAYOUT
1-9

1.3.2. Electrical Components
5
3
7
4
6
2
8
9
10
11
14
13
12
1
15 16
17 18
19
20
21 22 23 24
H515V003.wmf
27
30
29
28
26
31
32 33
25
H515V004.wmf
OVERALL MACHINE INFORMATION December 21st, 1995
COMPONENT LAYOUT
1-10

1. PCBs
No. Name Description
27 MFDU (M-zone Facsimile
Driver Unit) This board contains drivers for the motors, a dc-dc converter, the energy saving mode cpu, and other drive
electronics.
28 MFCE (M-zone Facsimile
Control Engine) This board controls the machine. It contains the main cpu, flash ROM, system RAM, and so on.
26 NCU (Network Control
Unit) This board contains a relay and switches for interfacing the machine to the network and the handset.
30 OPU (Operation Panel
Unit) This board controls the operation panel.
25 PSU (Power Supply Unit) This board supplies power to the machine, and
switches the fusing lamp on/off.
7LDDR (Laser Diode
Driver) This board drives the laser diode.
32 Power Pack This supplies high voltages to the corona wire, transfer
roller, and development rollers.
29 SBU The sensor on this board reads and converts the light
reflected from the document into an analog video signal.
2. Motors
No. Name Description
1Tx Motor This stepper motor drives the scanner.
23 Main Motor This brushless dc motor drives the drum, fusing unit,
development unit, and CTM.
21 Paper Feed Motor This stepper motor drives the registration roller and the
paper feed mechanisms in the cassettes.
4Hexagonal Mirror Motor This high-speed dc motor drives the hexagonal mirror
in the laser printer optics.
31 Ozone Fan Motor This removes ozone-laden air from the vicinity of the
drum, and filters out the ozone.
33 Fusing Fan Motor This cools the interior of the machine.
December 21st, 1995 OVERALL MACHINE INFORMATION
COMPONENT LAYOUT
1-11