Ricoh MV310 User manual

LSO
RICOH MV310
SERVICE MANUAL
May 22nd, 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 . . . . . . . . . . . . . . . . . . . . . 1-3
1.3. COMPONENT LAYOUT . . . . . . . . . . . . . . . . 1-6
1.3.1. Mechanical Components . . . . . . . . . . . . . . 1-6
1.3.2. Electrical Components . . . . . . . . . . . . . . . 1-8
1. PCBs . . . . . . . . . . . . . . . . . . . . . . 1-9
2. Motors and Clutches . . . . . . . . . . . . . . . . 1-9
3. Sensors . . . . . . . . . . . . . . . . . . . . . 1-10
4. Interlock Switches . . . . . . . . . . . . . . . . . 1-10
5. Others . . . . . . . . . . . . . . . . . . . . . . 1-11
6. Options . . . . . . . . . . . . . . . . . . . . . 1-12
1.4. OVERALL MACHINE CONTROL . . . . . . . . . . . . 1-13
1.5. VIDEO DATA PATH . . . . . . . . . . . . . . . . . . 1-14
1.5.1. Transmission . . . . . . . . . . . . . . . . . . . 1-14
1.5.2. Reception . . . . . . . . . . . . . . . . . . . . 1-15
1.5.3. Copying . . . . . . . . . . . . . . . . . . . . . 1-16
1.5.4. Printing using the Optional Printer Interface . . . . . . . 1-18
1.6. POWER DISTRIBUTION . . . . . . . . . . . . . . . . 1-19
1.6.1. Distribution Diagram . . . . . . . . . . . . . . . . 1-19
1.6.2. Memory Back-up Circuit . . . . . . . . . . . . . . 1-20
2. DETAILED SECTION DESCRIPTIONS
2.1. SCANNER . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1. Overview . . . . . . . . . . . . . . . . . . . . 2-1
1. Book Scanner . . . . . . . . . . . . . . . . . . . 2-1
2.ADF . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.2. Original Detection . . . . . . . . . . . . . . . . . 2-3
1. Book Scanner . . . . . . . . . . . . . . . . . . . 2-3
2.ADF . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.1.3. Scanning . . . . . . . . . . . . . . . . . . . . 2-6
1. Contact Image Sensor . . . . . . . . . . . . . . . 2-6
2. Main Scan Resolution and Width (Book Scanner) . . . . . 2-7
3. Main Scan Resolution and Width (ADF) . . . . . . . . . 2-8
4. Sub Scan Resolutions and Length (Book Scanner) . . . . 2-8
5. Sub Scan Resolutions and Length (ADF) . . . . . . . . 2-8
6. Sub Scan Resolution Conversion . . . . . . . . . . . 2-9
2.1.4. Drive Mechanism . . . . . . . . . . . . . . . . . 2-10
1. Book Scanner . . . . . . . . . . . . . . . . . . . 2-10
2.ADF . . . . . . . . . . . . . . . . . . . . . . . 2-11

3. Scanner Position Fine Adjustment . . . . . . . . . . . 2-12
2.1.5. Pick-up and Feed (ADF) . . . . . . . . . . . . . . 2-13
2.1.6. Separation Mechanism (ADF) . . . . . . . . . . . . 2-13
2.1.7. Stamping (ADF) . . . . . . . . . . . . . . . . . . 2-14
2.1.8. Error Conditions . . . . . . . . . . . . . . . . . 2-15
1. Book Scanner . . . . . . . . . . . . . . . . . . . 2-15
2.ADF . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.1.9. Video Processing . . . . . . . . . . . . . . . . . 2-17
1. Analog Signal Processing . . . . . . . . . . . . . . 2-17
2. Digital Video Processing Steps . . . . . . . . . . . . 2-18
3. Video Processing Parameters . . . . . . . . . . . . 2-22
2.2. PRINTING . . . . . . . . . . . . . . . . . . . . . . 2-23
2.2.1. Printing Process - Overview . . . . . . . . . . . . . 2-23
2.2.2. OPC Drum . . . . . . . . . . . . . . . . . . . . 2-24
2.2.3. Charge . . . . . . . . . . . . . . . . . . . . . 2-24
2.2.4. Laser Exposure . . . . . . . . . . . . . . . . . . 2-26
1. Overview . . . . . . . . . . . . . . . . . . . . . 2-26
2. Block Diagram . . . . . . . . . . . . . . . . . . . 2-27
3. Error Conditions . . . . . . . . . . . . . . . . . . 2-27
4. Print Density Adjustment . . . . . . . . . . . . . . . 2-28
5. Enlargement . . . . . . . . . . . . . . . . . . . 2-28
6. Toner Saving Mode . . . . . . . . . . . . . . . . . 2-29
2.2.5. Toner Supply . . . . . . . . . . . . . . . . . . . 2-30
2.2.6. Development . . . . . . . . . . . . . . . . . . . 2-33
2.2.7. Paper Feed . . . . . . . . . . . . . . . . . . . 2-38
1. Overview . . . . . . . . . . . . . . . . . . . . . 2-38
2. Paper Lift Mechanism . . . . . . . . . . . . . . . . 2-39
3. Paper Size and Paper End Detection . . . . . . . . . . 2-40
4. Pick-up and Separation . . . . . . . . . . . . . . . 2-42
5. Drive Mechanism . . . . . . . . . . . . . . . . . 2-42
2.2.8. Registration . . . . . . . . . . . . . . . . . . . 2-45
2.2.9. Transfer and Separation . . . . . . . . . . . . . . 2-47
2.2.10. Cleaning . . . . . . . . . . . . . . . . . . . . 2-50
2.2.11. Fusing . . . . . . . . . . . . . . . . . . . . . 2-51
2.2.12. Page Separation and Data Reduction . . . . . . . . 2-55
2.2.13. Paper Size Selection . . . . . . . . . . . . . . . 2-57
2.3. SYSTEM FEATURES . . . . . . . . . . . . . . . . . 2-58
2.3.1. Power Saver Modes . . . . . . . . . . . . . . . . 2-58
1. Going into a Power Saver Mode . . . . . . . . . . . . 2-59
2. Going into Level 2 Mode from Level 1 Mode . . . . . . . 2-61
3. Receiving a Fax Message in Power Saver Mode . . . . . 2-63
4. Sending a Fax Message or Copying in Power Saver Mode . 2-65
2.3.2. Automatic Service Calls . . . . . . . . . . . . . . 2-67
1. Service Call Conditions . . . . . . . . . . . . . . . 2-67
2. Excessive Jam Alarms . . . . . . . . . . . . . . . 2-68
3. Periodic Service Call . . . . . . . . . . . . . . . . 2-69

4. PM Call . . . . . . . . . . . . . . . . . . . . . 2-70
5. Effective Term of Service Calls . . . . . . . . . . . . 2-70
2.4. PCBs . . . . . . . . . . . . . . . . . . . . . . . 2-71
2.4.1. FCE . . . . . . . . . . . . . . . . . . . . . . 2-71
2.4.2. FDU . . . . . . . . . . . . . . . . . . . . . . 2-73
2.4.3. PSU . . . . . . . . . . . . . . . . . . . . . . 2-74
2.4.4. NCU (USA) . . . . . . . . . . . . . . . . . . . 2-75
1. Jumpers . . . . . . . . . . . . . . . . . . . . . 2-75
2.4.5. NCU (Europe/Asia) . . . . . . . . . . . . . . . . 2-76
1. Control Signals and Jumpers . . . . . . . . . . . . . 2-76
3. INSTALLATION
3.1. INSTALLING THE MACHINE . . . . . . . . . . . . . . 3-1
3.2. INITIAL PROGRAMMING . . . . . . . . . . . . . . . 3-1
3.3. OPTIONAL UNITS . . . . . . . . . . . . . . . . . . 3-2
3.3.1. Counter . . . . . . . . . . . . . . . . . . . . . 3-2
3.3.2. Printer Interface . . . . . . . . . . . . . . . . . . 3-3
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. System Parameter List (Function 02) . . . . . . . . . 4-2
4.1.3. Error Code Display (Function 03) . . . . . . . . . . . 4-2
4.1.4. Service Monitor Report (Function 04) . . . . . . . . . 4-2
4.1.5. Protocol Dump (Function 05) . . . . . . . . . . . . 4-3
4.1.6. RAM Display/Rewrite (Function 06) . . . . . . . . . . 4-3
4.1.7. RAM Dump (Function 06) . . . . . . . . . . . . . . 4-4
4.1.8. Counter Display/Rewrite (Function 07) . . . . . . . . . 4-4
4.1.9. NCU Parameters (Function 08) . . . . . . . . . . . . 4-5
4.1.10. Modem Test (Function 08) . . . . . . . . . . . . . 4-6
4.1.11. DTMF Tone Test (Function 08) . . . . . . . . . . . 4-6
4.1.12. Modem Detection Test (Function 08) . . . . . . . . . 4-7
4.1.13. Ringer Test (Function 08) . . . . . . . . . . . . . 4-7
4.1.14. Operation Panel Test (Function 09) . . . . . . . . . 4-8
4.1.15. LED Array Test (Function 10) . . . . . . . . . . . . 4-8
4.1.16. ADF Test (Function 10) . . . . . . . . . . . . . . 4-9
4.1.17. Book Mode Scanner Mechanism Test (Function 10) . . . 4-9
4.1.18. Auto Paper Select Mode Test (Function 10) . . . . . . 4-10
4.1.19. Image Sensor Check/Clock Reset (Function 10) . . . . 4-10
4.1.20. Printer Test Patterns (Function 11) . . . . . . . . . . 4-11
4.1.21. Printer Mechanism Test - Free Run (Function 11) . . . . 4-12
4.1.22. RAM Tests (Function 12) . . . . . . . . . . . . . . 4-12
4.1.23. Software Download (Function 12) . . . . . . . . . . 4-13

4.1.24. Software Upload (Function 12) . . . . . . . . . . . 4-14
4.1.25. SRAM Data Download (Function 12) . . . . . . . . . 4-15
4.1.26. Serial Number (Function 14) . . . . . . . . . . . . 4-16
4.1.27. Service Station Telephone Number (Function 13) . . . . 4-17
4.2. BIT SWITCHES . . . . . . . . . . . . . . . . . . . 4-18
4.2.1. System Switches . . . . . . . . . . . . . . . . . 4-18
4.2.2. Scanner Switches . . . . . . . . . . . . . . . . 4-28
4.2.3. Printer Switches . . . . . . . . . . . . . . . . . 4-29
4.2.4. Communication Switches . . . . . . . . . . . . . . 4-32
4.2.5. G3 Switches . . . . . . . . . . . . . . . . . . . 4-38
4.3. NCU PARAMETERS . . . . . . . . . . . . . . . . . 4-44
4.4. DEDICATED TRANSMISSION PARAMETERS . . . . . . . 4-72
4.4.1. Programming Procedure . . . . . . . . . . . . . . 4-72
4.4.2. Parameters . . . . . . . . . . . . . . . . . . . 4-73
4.5. SERVICE RAM ADDRESSES . . . . . . . . . . . . . . 4-75
4.6. SPECIAL TOOLS AND LUBRICANTS . . . . . . . . . . 4-87
4.7. PM TABLE . . . . . . . . . . . . . . . . . . . . . 4-87
5. REPLACEMENT AND ADJUSTMENT
5.1. EXTERIOR . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.1. ADF . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1.2. Operation Panel and Copy Tray . . . . . . . . . . . 5-3
5.1.3. Platen Cover and Original Scales . . . . . . . . . . . 5-3
5.1.4. Top Cover and Exposure Glass . . . . . . . . . . . 5-4
5.1.5. Left, Front, and Rear Cover . . . . . . . . . . . . . 5-4
5.2. SCANNER . . . . . . . . . . . . . . . . . . . . . 5-5
5.2.1. Contact Image Sensor . . . . . . . . . . . . . . . 5-5
5.2.2. Fluorescent Lamp Stabilizer . . . . . . . . . . . . . 5-6
5.2.3. Original Size, Platen Cover, and Scanner H. P. Sensors . . 5-6
5.2.4. Scanner Motor . . . . . . . . . . . . . . . . . . 5-7
5.3. LASER PRINTING COMPONENTS . . . . . . . . . . . 5-7
5.3.1. Inner Cover . . . . . . . . . . . . . . . . . . . 5-7
5.3.2. Laser Unit . . . . . . . . . . . . . . . . . . . . 5-8
5.3.3. Laser Diode Unit and Hexagonal Mirror Motor . . . . . . 5-9
5.4. DEVELOPMENT . . . . . . . . . . . . . . . . . . . 5-10
5.4.1. Master Drum . . . . . . . . . . . . . . . . . . . 5-10
5.4.2. Development Unit . . . . . . . . . . . . . . . . . 5-10
5.4.3. Transfer Roller . . . . . . . . . . . . . . . . . . 5-11
5.4.4. Main Motor and Gears . . . . . . . . . . . . . . . 5-11
5.4.5. Replacing the Development Unit . . . . . . . . . . . 5-12
5.5. FUSING . . . . . . . . . . . . . . . . . . . . . . 5-15
5.5.1. Thermistor . . . . . . . . . . . . . . . . . . . . 5-15
5.5.2. Fusing Unit . . . . . . . . . . . . . . . . . . . 5-15
5.5.3. Hot Roller Strippers. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5.5.4. Fusing Lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

5.5.5. Hot Roller . . . . . . . . . . . . . . . . . . . . 5-18
5.5.6. Pressure Roller . . . . . . . . . . . . . . . . . . 5-20
5.5.7. Thermostat and Thermofuse . . . . . . . . . . . . . 5-20
5.6. PAPER FEED . . . . . . . . . . . . . . . . . . . . 5-21
5.6.1. Paper Feed Roller and Clutch . . . . . . . . . . . . 5-21
5.6.2. Paper End Sensor . . . . . . . . . . . . . . . . . 5-21
5.6.3. Registration Sensor and Pressure Rollers . . . . . . . 5-22
5.6.4. Paper Feed Motor, Gears and Registration Roller . . . . 5-22
5.6.5. Bypass Feed Sensor . . . . . . . . . . . . . . . . 5-23
5.6.6. Paper Size Sensor . . . . . . . . . . . . . . . . 5-23
5.7. PCBs . . . . . . . . . . . . . . . . . . . . . . . 5-24
5.7.1. PSU . . . . . . . . . . . . . . . . . . . . . . 5-24
5.7.2. NCU . . . . . . . . . . . . . . . . . . . . . . 5-24
5.7.3. FDU and FCE . . . . . . . . . . . . . . . . . . 5-25
5.7.4. Power Pack . . . . . . . . . . . . . . . . . . . 5-26
5.8. OTHERS . . . . . . . . . . . . . . . . . . . . . . 5-26
5.8.1. Ozone Filter and Fan Motor . . . . . . . . . . . . . 5-26
5.8.2. Toner End Sensor . . . . . . . . . . . . . . . . . 5-27
5.9. ADF . . . . . . . . . . . . . . . . . . . . . . . . 5-27
5.9.1. ADF Roller Asssembly and Covers . . . . . . . . . . 5-27
5.9.2. Pick-up Roller . . . . . . . . . . . . . . . . . . 5-28
5.9.3. Feed Roller . . . . . . . . . . . . . . . . . . . 5-28
5.9.4. Separation Roller . . . . . . . . . . . . . . . . . 5-29
5.9.5. ADF Motor and Covers . . . . . . . . . . . . . . . 5-29
5.9.6. R0 and R1 Rollers . . . . . . . . . . . . . . . . . 5-30
5.9.7. R2 Roller . . . . . . . . . . . . . . . . . . . . 5-30
5.9.8. Document Sensor and Width Sensor . . . . . . . . . 5-31
5.9.9. Scan Line Sensor . . . . . . . . . . . . . . . . . 5-32
5.9.10. Cover Sensors . . . . . . . . . . . . . . . . . . 5-32
5.10. 100 SHEET PAPER CASSETTE (OPTIONAL) . . . . . . . 5-34
5.10.1. Relay Connector and Gear Cover . . . . . . . . . . 5-34
5.10.2. Paper End Sensor and Drive Components . . . . . . . 5-35
5.10.3. Paper Size Sensor . . . . . . . . . . . . . . . . 5-36
5.11. IMAGE ADJUSTMENT . . . . . . . . . . . . . . . . 5-37
5.11.1. Overview . . . . . . . . . . . . . . . . . . . . 5-37
5.11.2. Scanner Parameters . . . . . . . . . . . . . . . 5-38
1. Contrast . . . . . . . . . . . . . . . . . . . . . 5-38
2. Margins . . . . . . . . . . . . . . . . . . . . . 5-38
5.11.3. Printer Parameters . . . . . . . . . . . . . . . . 5-40
1. Margin (Main Scan Direction) . . . . . . . . . . . . . 5-40
2. Margin (Sub Scan Direction) . . . . . . . . . . . . . 5-41
5.11.4. Scanner Video Processing Parameters . . . . . . . . 5-42
1. Contrast . . . . . . . . . . . . . . . . . . . . . 5-42
2. Image Processing Parameters Adjustment . . . . . . . . 5-43

6. TROUBLESHOOTING
6.1. COPY QUALITY TROUBLESHOOTING . . . . . . . . . . 6-1
6.1.1. Blank Copies . . . . . . . . . . . . . . . . . . . 6-2
6.1.2. Black Copies . . . . . . . . . . . . . . . . . . . 6-4
6.1.3. Dirty Background . . . . . . . . . . . . . . . . . 6-5
6.1.4. Uneven Image Density . . . . . . . . . . . . . . . 6-6
6.1.5. Vertical Black Lines . . . . . . . . . . . . . . . . 6-7
6.1.6. Horizontal Black Lines . . . . . . . . . . . . . . . 6-8
6.1.7. Vertical White Lines . . . . . . . . . . . . . . . . 6-9
6.1.8. Horizontal White Lines . . . . . . . . . . . . . . . 6-10
6.1.9. Black Dots/Spots . . . . . . . . . . . . . . . . . 6-11
6.1.10. White Spots in Black Image Areas . . . . . . . . . . 6-12
6.1.11. Faint Copies . . . . . . . . . . . . . . . . . . 6-13
6.1.12. Vertical Black Band . . . . . . . . . . . . . . . . 6-15
6.1.13. Unfused Copies . . . . . . . . . . . . . . . . . 6-16
6.1.14. Ghost Image . . . . . . . . . . . . . . . . . . 6-16
6.1.15. Toner on the Back of the Printer Paper . . . . . . . . 6-17
6.1.16. Misaligned Output (Data shifted to the right or left) . . . 6-18
6.1.17. Misaligned Output (Image shifted vertically)/Reduced Image 6-18
6.2. MECHANICAL PROBLEMS . . . . . . . . . . . . . . 6-19
6.2.1. ADF . . . . . . . . . . . . . . . . . . . . . . 6-19
1. Non Feed . . . . . . . . . . . . . . . . . . . . 6-19
2. Jam . . . . . . . . . . . . . . . . . . . . . . . 6-20
3. Skew . . . . . . . . . . . . . . . . . . . . . . 6-21
4. Multi-feed . . . . . . . . . . . . . . . . . . . . 6-21
6.2.2. Book Scanner . . . . . . . . . . . . . . . . . . 6-22
1. Abnormal Noise . . . . . . . . . . . . . . . . . . 6-22
2. Scanner Home Position Error (Error Code 9-11) . . . . . 6-22
3. Automatic Paper Selection Error . . . . . . . . . . . . 6-23
4. Scanning Start Position Error (Error Code 1-09) . . . . . 6-23
6.2.3. Printer . . . . . . . . . . . . . . . . . . . . . 6-24
1. Non-feed . . . . . . . . . . . . . . . . . . . . . 6-24
2. Paper Jam - Inside the Printer . . . . . . . . . . . . 6-25
3. Jam - Fusing Exit . . . . . . . . . . . . . . . . . 6-26
4. Skew . . . . . . . . . . . . . . . . . . . . . . 6-27
5. Multi-feed . . . . . . . . . . . . . . . . . . . . 6-27
6.3. SERVICE CALL CONDITIONS . . . . . . . . . . . . . 6-28
6.4. ERROR CODES . . . . . . . . . . . . . . . . . . . 6-32
6.5. ELECTRICAL COMPONENT DEFECTS . . . . . . . . . 6-39
6.5.1. Defective Sensor Table . . . . . . . . . . . . . . . 6-39
6.5.2. Blown Fuse Table . . . . . . . . . . . . . . . . . 6-40

1. OVERALL MACHINE INFORMATION
1.1. SPECIFICATIONS
Type
Desktop transceiver
Circuit
PSTN, PABX
Connection
Direct couple
Book Scanner
Document Size:
Smaller than 257 x 364 mm
[10.1 x 14.3 ins]
Thickness: Less than 30 mm
Weight: Less than 5 kg
ADF
Document Size
Length: 105 - 364 mm
[4.1 - 16.5 ins]
Up to 1200 mm [47.2 ins],
manually assisted
Width: 148 - 257 mm
[5.8 - 10.1 ins]
Thickness: 0.05 to 0.2 mm [2 to 8 mils]
(equivalent to 50 - 90 g/m2)
0.04 to 0.4 mm [1.6 to 16 mils],
manually assisted
(equivalent to 40 - 120 g/m2)
Document Feed
Automatic feed, face up
ADF Capacity
30 sheets (using 20 lb paper)
Scanning Method
Contact image sensor, with xenon lamp
Maximum Scan Width
256 mm [10.1 ins] ±0.25%
Scan Resolution
Fax mode
Standard: 8 x 3.85 lines/mm [203 x 98 dpi]
Detail: 8 x 7.7 lines/mm [203 x 196 dpi]
Fine: 8 x 15.4 lines/mm [203 x 392 dpi]
Copy mode:
16 x 15.4 lines/mm [406 x 392 dpi]
Memory Capacity
ECM: 64 or 128 kB; single or double buffer
SAF: 576 kB (45 pages/A4)
Protocol
Group 3 with ECM
Compression
MH, MR, EFC, MMR, SSC (MMR only with
ECM)
Storage to SAF memory for tx: MMR and/or
raw data
Modulation
V.29 (QAM), V.27ter (PHM), V.21 (FM)
Data Rate (bps)
9600/7200/4800/2400, Automatic fallback
I/O Rate
With ECM: 0 ms/line
Without ECM: 2.5, 5, 10, 20, or 40 ms/line
Transmission Time
9 s at 9600 bps; Measured with G3 ECM us-
ing memory for a CCITT #1 test document
(Slerexe letter) using standard resolution
Printing System
Laser printing, plain paper, dry toner
Printing Time
10 ppm for A4 size paper
Paper Size
Standard Cassette:
USA: Half-Letter, Letter, Legal
Europe/Asia: A4, A5, B5, F, F4
Optional 100 Sheet Cassette:
USA: Half-letter, Letter, Legal
Europe/Asia: A4, A5, B5 lengthwise, F/F4
Paper Capacity
Standard Cassette: - 250 sheets
Optional 100 Sheet Cassette:
- 100 sheets
Bypass Feeder: - 1 page
Maximum Printing Width
248 mm [9.8 ins]
Printer Resolution
Fax/Copy Mode: 16 x 15.4 lines/mm
[406 x 392 dpi]
Printer Mode: 300 x 300 dpi
Power Supply
USA: 115 ±20 Vac, 60 ±1 Hz
Europe/Asia: 220 Vac +20/-10%, 50 ±1 Hz
May 22nd, 1995 OVERALL MACHINE INFORMATION
SPECIFICATIONS
1-1

Power Consumption
Standby: Minimum 2 W, Normal 70 W
Transmitting: 35 W
Receiving: 200 W
Copying: Normal 300 W, Maximum 800 W
Operating Environment
Temperature: 17 - 28 °C [63 - 82 °F]
Humidity: 40 - 70 %Rh
Dimensions (W x D x H)
555 x 555 x 342 mm [21.9 x 21.9 x 13.5 ins]
Excluding handset, trays, and optional units
Weight
30 kg [66 lbs]
Excluding handset, trays, and optional units
OVERALL MACHINE INFORMATION May 22nd, 1995
SPECIFICATIONS
1-2

1.2. FEATURES
KEY: O = Used, X = Not Used
A= With optional 100 sheet cassette only
B = With optional counter only
C = With optional handset only
D = With printer interface only
Equipment
ADF O
Book scanner O
Built-in handset X
Bypass feed: 1 sheet O
Optional cassette: 100 sheets A
Cabinet X
Counter B
Cutter X
Handset C
Hard disk X
Manual feed mechanism X
Marker (Stamp) O
Monitor speaker O
Printer interface option D
Video Processing Features
Contrast O
Auto image density control O
Halftone (Basic & Error Diffusion) O
MTF O
Reduction (Fax) O
Resolution O
Smoothing to 16 x 15.4 l/mm
(Fax) O
Communication Features - Auto
Automatic fallback O
Automatic redialing O
Confidential reception X
Dual Access O
Substitute reception O
Communication Features -
User Selectable
Action as a transfer broadcaster X
AI Redial (last ten numbers) X
Answering machine interface X
Authorized Reception O
Auto-answer delay time X
Communication Features -
User Selectable
Auto dialing (pulse or DTMF) O
Auto Document X
Auto image density selection O
Automatic Voice Message X
Batch Transmission X
Broadcasting O
Chain Dialing X
Communication Result Display X
Confidential ID Override X
Confidential Transmission X
Direct Fax Number Entry O
Economy Transmission X
Fax on demand X
Forwarding X
Free Polling X
Groups (3 groups) O
Group Transfer Station X
Hold X
ID Transmission Option X
Immediate Redialing O
Immediate transmission O
Keystroke Programs X
Memory transmission O
Multi-step Transfer X
Next Transfer Station X
OMR X
On Hook Dial O
Ordering Toner X
Page Count O
Personal Codes X
Personal Codes with Conf. ID X
Polling Reception O
Polling Transmission X
Polling tx file lifetime in the SAF X
Quick Dial (20 stations) O
Reception modes (Fax, Tel, Auto) O
Reduction O
Remote control features X
Remote Transfer X
Restricted Access X
Secured Polling X
Secured Polling with Stored ID
Override X
Secure Transmission X
Send Later O
May 22nd, 1995 OVERALL MACHINE INFORMATION
FEATURES
1-3

Communication Features -
User Selectable
Silent ringing detection X
Specified Image Area X
Speed Dial (50 stations) O
Super Fine Resolution
(16 x15.4 l/mm : 400 x 400 dpi) X
Telephone Directory X
Tonal Signal Transmission O
Transfer Request X
Transmission Deadline (TRD) X
Turnaround Polling X
Two-step Transfer X
Two in one X
Voice Request (immed. tx only) X
Communication Features -
Service Selectable
AI Short Protocol O
Auto-reduction override option O
Busy tone detection O
Closed Network (tx and rx) X
Continuous Polling Reception X
Dedicated tx parameters O
ECM O
EFC O
Inch-mm conversion X
Page retransmission O
Page separation mark O
Protection against wrong conn. O
Resol’n stepdown override option X
Short Preamble X
Well log O
Copier Features
Auto Image Density O
Auto Paper Select (Book mode) O
Reduction/Enlargement O
Erase center/border O
Distribution number printing O
Center marks O
Other User Features
Area Code Prefix X
Auto Service Call O
Center mark O
Checkered mark X
Other User Features
Clearing a memory file O
Clearing a polling file O
Clock O
Confidential ID X
Copy mode O
Copy Mode Restriction X
Counters O
Daylight Saving Time (USA only) O
Destination Check X
Direct entry of names O
File Retention Time X
File Retransmission O
Function Programs X
ID Code X
Label Insertion ("From xxx") X
Language Selection O
LCD contrast control Service
Memory Lock X
Memory Lock ID X
Modifying a memory file X
Multi Sort Document Reception X
Multicopy mode (up to 99) O
Own telephone number X
Power 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 X
Remaining memory indicator O
Remote ID X
Reverse Order Printing X
RTI, TTI, CSI O
Secure ID X
Service Report Transmission O
Speaker volume control O
Specified Cassette Selection X
Substitute reception on/off O
Telephone line type O
Toner saving mode O
TTI on/off O
User Function Keys X
User Parameters O
Wild Cards O
OVERALL MACHINE INFORMATION May 22nd, 1995
FEATURES
1-4

Reports - Automatic
Charge Control Report X
Communication Failure Report O
Confidential File Report X
Error Report O
Memory Storage Report O
Mode Change Report X
Polling Clear Report X
Polling Reserve Report O
Polling Result Report O
Power Failure Report O
TCR O
Toner Cassette Order Form X
Transfer Result Report X
Transmission Result Report O
Reports - User-initiated
Authorized Reception List O
Charge Control Report X
File List O
Forwarding List X
Group List O
Personal Code List X
Program List X
Quick Dial List O
Specified Cassette Selection List X
Speed Dial List O
TCR O
Transmission Status Report X
User Function List X
User Parameter List O
Service Mode Features
Auto Paper Select Test O
Back-to-back test O
Bit switch programming O
Book Test O
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
Service Mode Features
File Transfer O
Hex Dump List E
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 X
Printer test patterns O
Programmable attenuation X
Protocol dump list O
RAM display/rewrite O
RAM dump O
RAM test O
Ringer test X
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
Status Sheet D
System parameter list O
Technical data on the TCR O
Thermal head parameters X
Transmission Status Report X
User data transfer O
Memory Files
Max. number of files: 100
Max. number of stations/file: 100
Max. number of stations overall: 200
Max. number of pages overall: 150
May 22nd, 1995 OVERALL MACHINE INFORMATION
FEATURES
1-5

1.3. COMPONENT LAYOUT
1.3.1. Mechanical Components
No. Name Description
1Scanner Contains a contact image sensor and a xenon lamp
driver.
2 R1 Roller Feeds the document through the scanner.
3 R0 Roller Feeds the document into the scanner.
4Separation roller Prevents more than one sheet from feeding into the
scanner.
5 Document Feed Roller Feeds the document into the scanner.
6Pick-up Roller Picks up pages of the document from the document
table one at a time.
7 R2 Roller Feeds the document through the scanner.
8Laser Unit This consists of the LDDR (Laser Diode Driver),
Focusing lens, FθLenses, Hexagonal mirror motor, and
other laser optic components.
1
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OVERALL MACHINE INFORMATION May 22nd, 1995
COMPONENT LAYOUT
1-6

No. Name Description
9Toner Supply Bar This stirs up and transfers toner to the toner application
roller.
10 Toner Application Roller This roller transfers toner to the development roller.
11 Development Roller This roller applies toner to the latent image on the drum.
12 Platen Cover This covers the original which was placed on the
exposure glass.
13 Exposure Glass Book scanner reads the original on it.
14 CTM (Cleaning Toner
Magazine) This consists of the toner cartridge, cleaning unit, used toner tank, charge corona unit, and quenching lamp.
15 OPC Drum The latent image is written to this Organic
Photoconductor Drum.
16 Hot Roller Heat from this roller fuses the toner to the copy paper.
17 Cleaning Pad This cleans up and spreads silicone oil on the surface
of the hot roller.
18 Hot Roller Strippers These take the paper off the hot roller after fusing.
19 Paper Feed-out Rollers These feed the paper out of the printer.
20 Fusing Pressure Roller This applies pressure to the paper during fusing.
21 Transfer Roller This applies a charge to the paper to pull the toner off
the drum and onto the copy paper.
22 Paper Feed Rollers (100
Sheet Cassette) These pick up the top sheet of paper from the stack in the optional 100 sheet cassette and feed it into the
printer.
23 Registration Roller This carries out the registration process.
24 Paper Feed Pressure
Rollers These feed paper from the cassette or bypass feed slot into the printer.
25 Paper Feed Rollers These pick up the top sheet of paper from the stack in
the cassette and feed it into the printer.
May 22nd, 1995 OVERALL MACHINE INFORMATION
COMPONENT LAYOUT
1-7

1.3.2. Electrical Components
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OVERALL MACHINE INFORMATION May 22nd, 1995
COMPONENT LAYOUT
1-8

1. PCBs
No. Name Description
3FDU (Facsimile Driver Unit) This board contains drivers for the motors, a dc-dc converter, the energy saving mode cpu, and other drive
electronics.
2FCE (Facsimile Control
Engine) This board controls the machine. It contains the main cpu, flash ROM, system RAM, and so on.
5NCU (Network Control
Unit) This board contains a relay and switches for interfacing the machine to the network and the handset.
1OPU (Operation Panel
Unit) This board controls the operation panel.
7PSU (Power Supply Unit) This board supplies power to the machine, and
switches the fusing lamp on/off.
15 LDDR (Laser Diode
Driver) This board drives the laser diode.
14 Power Pack This supplies high voltages to the corona wire, transfer
roller, and development bias terminal.
9
Contact Image Sensor
and Xenon Lamp This sensor reads and converts the light reflected from the document into an analog video signal. It uses an
RMLA (Roof Mirror Lens Array) sensor unit.
The xenon lamp which illuminates the document is
contained in this unit.
16 IC Card This contains a DRAM which is used as page memory
for 400 x 400 dpi printing of incoming B4 faxes.
2. Motors and Clutches
No. Name Description
6 ADF Motor This stepper motor drives the scanner.
10 Main Motor This brushless dc motor drives the drum, fusing unit,
development unit, and CTM.
12 Paper Feed Motor This stepper motor drives the registration roller and the
paper feed mechanisms in the cassettes.
8Hexagonal Mirror Motor This high-speed dc motor drives the hexagonal mirror
in the laser printer optics.
41 Ozone Fan Motor This removes ozone-laden air from the vicinity of the
drum, and filters out the ozone.
29 Cooling Fan Motor This cools the interior of the machine.
4 Scanner Motor This stepper motor drives the book scanner.
11 Paper Feed Clutch This transfers main motor drive to the cassette and
bypass tray paper feed mechanisms.
May 22nd, 1995 OVERALL MACHINE INFORMATION
COMPONENT LAYOUT
1-9

3. Sensors
No. Name Description
17 Document Sensor This detects the presence of a document in the feeder.
19 Scan Line Sensor This detects when a page is approaching the auto
shading position.
20 Document Width Sensor This detects when a B4 width [10.1"] document has
been placed in the feeder.
39 Toner End Sensor This detects when the toner has run out.
40 Paper Size Detector This detects the paper size installed in the cassette.
The user must install the correct actuator.
33 Paper End Sensor This detects when the paper in the cassette has run out.
37 Registration Sensor This detects when paper has reached the registration
roller.
31 Paper Feed-out Sensor This detects when the paper has been fed out of the
printer.
32 Paper Exit Cover Switch This detects whether the paper feed-out cover is open
or closed.
36
Bypass Feed Sensor This detects when a sheet of paper has been inserted
into the bypass feed slot. Then the registration roller
feeds the paper a short distance into the machine to
prepare for printing, and stops.
21 ADF Cover Switch This detects whether the ADF cover is open or closed.
28 Scanner Home Position
Sensor This detects when the image sensor is at home position.
23
24 Paper Size Sensors These detect the size of the paper which was placed on the exposure glass.
25 Platen Cover Sensor This detects whether the platen cover is open or closed.
22 ADF Switch This detects whether the ADF unit is open or closed.
4. Interlock Switches
No. Name Description
27
30
Fusing Unit Cover
Interlock Switches If the fusing unit cover and/or top cover are open, these interlock switches interrupt the +5VLD power supply for
the laser diode and the +24VD power supply for the
power pack, motors, and other components.
OVERALL MACHINE INFORMATION May 22nd, 1995
COMPONENT LAYOUT
1-10

5. Others
No. Name Description
18 Stamper Ass’y This stamps a red circle on each page that is
successfully fed through the scanner.
38 Thermostat This interrupts the ac power supply to the fusing lamp if the temperature of the thermostat surface exceeds
400°C.
35 Thermistor This monitors the temperature inside the fusing unit.
34 Fusing Lamp This fuses the toner to the paper.
42 Monitor Speaker This allows the user to listen to the condition of the
telephone line.
26 Zener Diode This ensures that the charge given to the drum by the
charge corona wire does not exceed -750 volts.
13 Lamp Stabilizer This supplies power to the xenon lamp.
May 22nd, 1995 OVERALL MACHINE INFORMATION
COMPONENT LAYOUT
1-11

6. Options
No. Name Description
1Printer Interface This allows the machine to be connected to a computer
as a laser printer.
2RS232C Interface Board* This allows the machine to be connected to a computer
as an external fax device for example.
3Paper Feed Clutch (100
Sheet Cassette) This transfers motor drive to the mechanisms in the 100 sheet cassette.
4Paper End Sensor (100
Sheet Cassette) This detects when the paper in the optional 100 sheet cassette has run out.
5Paper Size Detector (100
Sheet Cassette) This detects the paper size installed in the optional 100 sheet cassette.
6Paper Feed Roller (100
Sheet Cassette) This feeds paper from the 100 sheet cassette into the machine.
7 Counter This counts the number of prints.
8100 Sheet Cassette This increases the paper capacity of the machine, and
allows the machine to have more than one paper size
available at the same time.
* This option may not be available in some countries.
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OVERALL MACHINE INFORMATION May 22nd, 1995
COMPONENT LAYOUT
1-12