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A246/A247/A248 SERVICE MANUAL
RICOH GROUP COMPANIES
PN: RCSMA246
®
A246/A247/A248
SERVICE MANUAL
RICOH GROUP COMPANIES
®
®
A246/A247/A248 SERVICE MANUAL
PN:RCSMA246
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. All product names, domain names or product illustrations, including desktop images, used in this document are trademarks, registered trademarks or the property of their respective companies. They are used throughout this book in an informational or editorial fashion only and for the benefit of such companies. No such use, or the use of any trade name, or web site is intended to convey endorsement or other affiliation with Ricoh products.
2000 RICOH Corporation. All rights reserved.
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. Untrained and uncertified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal injury, damage to property. or loss of warranty protection.
Ricoh Corporation
LEGEND
PRODUCT CODE A246 A247 A248 COMPANY GESTETNER RICOH 2851 FT7950 2860 FT7960 2870 FT7970 SAVIN 2050 2060 2070
DOCUMENTATION HISTORY
REV. NO. * DATE 12/98 COMMENTS Original Printing
A246/A247/A248 and A175/A176/A177
Product Comparison Chart
1.
THE FOLLOWING TABLE SHOWS THE MAJOR DIFFERENCES BETWEEN THE A246/A247/A248 AND A175/A176/A177 SERIES COPIERS.
A175/A176/A177 After the last sheet of copy paper is stacked in the duplex tray, the next job will start. Remarks Refer to SM, pg. 2-113 for detailed information.
No.
Section/Item Duplex copy productivity
A246/A247/A248 Duplex copy control has been revised. The duplex copy productivity has been increased in the simplex to duplex mode. Before the last sheet of copy paper is stacked in the duplex tray, the next job will start from the bottom stacked sheet in simplex to duplex mode.
1 Last sheet Last sheet
Last sheet
First duplex sheet
First duplex sheet
A246G507.WMF
2
Tandem LCT
The tandem LCT (capacity: 1,550 x 2) is the 1st tray for easier paper replenishment.
The tandem tray (capacity: 500 x 2) is the 1st Refer to SM, pg. 2-85/89 tray for (A176/A177/A191/A192 copiers). for detailed information.
SM
1
A246/A247/A248
No.
Section/Item Toner re-cycling system
A175/A176/A177 Around 10% of toner is collected to the used toner collection bottle without transferring the toner to the copy paper.
Remarks Refer to SM, pg. 2-31/35 for detailed information.
3
Transfer belt cleaning bias roller
A246/A247/A248 The toner from the drum cleaning unit and transfer belt unit is collected and the filtering equipment mechanism separates the reusable toner and unusable material (blocked toner and paper dust). The re-usable toner is returned to the toner tank and the unusable material is collected in the used toner collection bottle. About 3% of toner is collected in the used toner collection bottle. The estimated period before the toner collection bottle is full has been extended from 240 k to 1,500 k copies. To improve the transfer belt function, a cleaning bias roller and a bias roller blade have been added to the transfer belt unit. Even if the toner is not removed completely by the transfer belt cleaning blade due to the paper dust stuck on the transfer belt cleaning blade, the toner is attracted to the negative charged cleaning bias roller. The bias roller blade scrapes off the toner on the cleaning bias roller. Refer to SM, pg. 2-65/67 for detailed information. Cleaning Bias Roller The A229 (digital copier) does not have a transfer belt cleaning blade. Reason: If the toner on the transfer belt were scraped by a cleaning blade, some of the normally negatively charged toner could be charged positively by friction.
4
A246G500.WMF
Transfer Belt Cleaning Blade
Bias Roller Blade
The positively charged toner then could not be removed by the cleaning bias roller.
SM
2
A246/A247/A248
No.
5
Section/Item Optics/Scanner return speed (70 CPM machine)
A175/A176/A177
Remarks Refer to SM, pg. 2-37 for detailed information.
Operation panel
6 The operators have to input 2 actions of the key operation to enter the UP mode (Clear mode key and Clear/Stop key). Additional original can be set on ADF table during copying but the copy operation is not continued
The size of the LCD on the operation panel is Refer to the Operating 320 x 240 dots. Instructions.
Operation
Refer to the Operating Instructions
7
Process control auto start mode
8
A246/A247/A248 To reduce the machine vibration while the scanner is returning to the home position for 70 cpm machines, the appropriate return speed for each reproduction ratio is adapted so that the vibration of the machine is reduced (to the 60 cpm machine level). For easier operation, the LCD on the operation panel has been enlarged to 640 x 240 dots. For easier key operation, the layout of the keys has been changed. Improvements resulting from experience with A175/A176/A177 machines have been incorporated to facilitate machine operation. 1) The key top for the UP mode has been added for easier access in the UP mode. 2) Additional originals can be set on the ADF table during copying and the copy operation is continued (totally 100 originals). 3) A sample copy key is added to the operation panel. 4) The range of the ID level has been widened from 7 to 9. The number of programs has been increased from 5 to 10. The digits of the user code has been increased from 6 to 8. 5) The units (inch or mm) can be changed by SP mode. The process control auto start mode can be selected in SP mode (Default: selected). To maintain optimum copy quality, process control occurs every 24 hours even if the main switch is not turned off. The process control only starts when the Refer to SM, pg. 4-8 and fusing temperature is low. If the main switch SP 1-12-1 for detailed of the copier is not turned off during 24 hours, information. the fusing temperature does not go down to 100°C. Process control cannot be carried out.
SM
3
A246/A247/A248
No.
9
Section/Item Drive for the registration roller
A246/A247/A248 An independent stepping motor drives the registration roller to ensure good copy quality. Refer to SM, pg. 4-16 for detailed information.
Remarks Refer to SM, pg. 2-99 for detailed information.
Duplex
10
A175/A176/A177 When the registration clutch turns on, the main motor rotation may sometimes be shocked. Jitter may appear at 80 mm from the leading edge on small fine dotted images. It takes longer to deliver severely curled paper such as recycled paper or paper which was fed as far as the duplex separation section in the duplex unit. In latter case, the paper guide is already up for next sheet of paper. The paper guide cannot guide the paper. To solve the problem, a program in SP mode has been added.
Exterior/Front doors
11
To ensure good stacking in the duplex unit, the following modification has been applied. 1) The duplex positioning roller rotation speed has increased 1.6 times from the A177 so that the positioning roller delivers the paper to the duplex separation section while the paper guide is down. 2) The positioning roller on timing can be changed by SP mode (1-9-1). Operators can open and close either the copier or the sorter stapler door first because the copier door swing to the right.
Developer
For exit jam removal, it is necessary to open the sorter stapler door first and then the copier front door. Also, it is necessary to close the copier front door first and then the sorter stapler door. The PM cycle for replacing developer is every Developer, Type 9 120 k. EDP Code: 887797 Toner, Type 6105 EDP Code: 887801 The new type drum can be installed in the A175/A176/A177 machines. See illustration. Refer to SM, pg. 2-21 for detailed information.
12
Drum
New developer is used to stabilize the triboelectric charge after a long copy run (300 k). The new developer maintains the triboelectric chargeability over a long time. This reduces the possibility of low image density or dirty background. To prevent the drum temperature from increasing in the continuous duplex mode, the drum has 12 holes in each drum flange.
A246/A247/A248
A175/A176/A177
13
A246G503.WMF
SM
4
A246/A247/A248
No.
Section/Item Key counter Refer to SM, pg. 3-16/17 for detailed information.
A246/A247/A248 A175/A176/A177 The key counter holder is installed at the The key counter holder is installed at the copier right front position for easier operation. copier right rear position.
Remarks See illustration.
14
Key Counter Holder
A246G504.WMF
Vertical transport guide
Refer to SM, pg. 2-91 for detailed information.
15
The upper and lower transport guides have been combined into one part for easier operation of jam removal. The open angle of the upper guide is the same as that of the lower guide.
When removing misfed paper in the vertical transport section, it is necessary to open the upper and lower vertical transport guides. The open angle of the upper vertical transport guide is narrower than that of the lower vertical transport guides.
16
Character Thin Line Adjustment (Generation Copy Mode)
Vertical thin line may be thicker than original after generation copy. Vertical thin lines can be made thinner by lowering the toner density in the development unit. VP data can be compensated by SP mode (SP1-13-4). L: Thicker, N: Normal, H: Thinner, HH: Much Thinner VIDB = VP +300(V)
Refer to SM, pg. 4-18 for detailed information.
SM
5
A246/A247/A248
No.
Section/Item Fusing/Pressure roller
A246/A247/A248 The pressure levers securing method has been changed. The levers are hooked by the shaft and holes, and 2 retaining rings have been eliminated. Thus, it is not necessary to remove the connector bracket when replacing the pressure roller and its bearings without removing the hot roller. Lever
A175/A176/A177 When replacing the pressure roller and its bearings without removing the hot roller, it is necessary to remove the pressure levers, retaining rings, and connector bracket.
Remarks See illustration.
17 Retaining Ring
Retaining Ring
A246G501.WMF
18
Fusing
19
Energy star compliant
The PM cycle for replacing the pressure roller Refer to SM, pg. 5-2 for is every 240 k. detailed information. The Energy Star compliant, US version only. Refer to SM, pg. 2-115 for detailed information. To remove the right or the left cover, it is necessary to remove the other parts (front cover, rear cover, and inner cover). Refer to SM, pages 6 1 to 6-9 for details.
Exterior covers
20
High durability rubber is used for the pressure roller (450 k). The European version machine meets the Energy Star guidelines for energy efficiency as well as US version machines. The left and right covers can be removed independently. The numbers of screws required for removing following covers have been reduced. Operation panel (-4), Upper cover (-4), Right upper cover (-4), Lower left & right cover (-2), Lower rear cover (-4)
SM
6
A246/A247/A248
No.
Section/Item A246/A247/A248 The bias terminal (development roller shaft) Development/Bias does not rotate but the outside of the terminal development roller shaft rotates. It is not lubrication necessary to lubricate the development bias terminal.
A175/A176/A177 The bias terminal in the development roller rotates in the bias receptacle. The bias terminal must be lubricated.
Remarks See illustration.
21
A175/A176/A177
A246/A247/A248
A246G502.WMF
Duplex/Separation The number of separation belts has been belt reduced from 3 to 1.
Three separation belts are used for duplex separation.
The two types of belt are not interchangeable. The two types of duplex unit are also not interchangeable because of the different connectors.
22
SM
7
A246/A247/A248
No.
Section/Item Drum grounding terminal
A246/A247/A248 A175/A176/A177 As the drum grounding terminal, a conductive The drum grounding plate contacts the drum brush and a conductive bearing are used. It shaft rotated. Replacement and lubrication is not necessary to replace these parts at every 1.2 M are necessary. regular PM. Drum Grounding Plate
Remarks See illustration.
A175/A176/A177
A246/A247/A248
Brush
23 Bearing
A246G505.WMF
Brush
A246G506.WMF
SM
8
A246/A247/A248
No.
Remarks Refer to SM, pg. 9-19/21 for detailed information.
24
Section/Item A246/A247/A248 Sorter stapler/Grip There are 2 motors in the grip assembly. One is used for opening and closing the grip arms, instead of solenoids. The other (Grip motor) is used for moving the grip arms. This reduce the operation noise in staple mode. The operator can selects 4 staple positions (top, bottom, slant, 2 staple). Refer to SM, pg. 4-52 for detailed information.
A175/A176/A177 There are 2 solenoids in the grip assembly. One is used for opening and closing the grip arms. The other is used for moving the grip arms. The grip motor is used for moving the grip arms.
User program/Three staple position
25
26
Sorter stapler/Punch waste collection box
In addition to the 4 staple positions (top, bottom, slant, 2 staple), the operator can select either the 2 or 3 staple position by user program. When the 3 staple position is selected, the indication on the operation panel will be changed from 2-staple to 3staple. The capacity of the punch waste collection box has been increased. 20 k sheets (2 holes/sheet)/13 k sheets (3 holes/sheet)
The capacity of the punch collection box is as Refer to SM, pg. 9-25 for follows: detailed information. 7 k sheets (2 holes/sheet) 5 k sheets (3 holes/sheet)
27
Sorter stapler/Original tray
For easier operation of the next job or in the platen mode, the original tray is added to the top of the proof tray in the sorter stapler. Refer to SM, pg. 9-8 for detailed information.
28
Sorter stapler/Proof exit roller
In the proof mode the proof exit roller (driving side) contacts the front side (image side) to deliver the copy paper.
See Operating Instruictions
29
Sorter stapler/limitless sort function: software
To ensure good copy quality in proof mode, the proof exit roller (driving side) contacts the rear side (non-image side) to deliver the copy paper. When making more than 20 sets of copies, operators just input the number of sets and press the start key. The operator must then remove every 20 sets of copies stacked in the 20 bins. Then reset the originals, and press the start key again. The operator can have more than 20 sets of copies.
When making more than 20 sets of copies, operators have to divide the job. The operator also has to input the settings after each 20 sets of copies is finished.
SM
9
A246/A247/A248
No.
Section/Item Optics/APS sensor
Remarks Refer to SM, pg. 2-48/49 for detailed information.
30
Refer to SM, pg. 2-95 for detailed information.
31
A246/A247/A248 A175/A176/A177 The APS sensor emits 2 beams (ultra red There are three reflective type sensors to light LED) to scan the original size. To detect the original size in platen mode. distinguish between LT and LG paper sizes, another APS sensor (usual reflective type) is installed in the US version. By-pass tray/Thick When the by-pass paper feed key is pressed paper mode twice, the copier enters the thick paper mode. In this mode the by-pass feed clutch turns on twice, the fusing temperature is controlled in a higher than normal mode, the continuous copy speed is reduced, and higher transfer current is applied to the transfer belt.
SM
10
A246/A247/A248
TABLE OF CONTENTS
OVERALL INFORMATION
1. OVERALL MACHINE INFORMATION ........................................ 1-1
1.1 SPECIFICATION ...................................................................................... 1-1 1.2 MACHINE CONFIGURATION .................................................................. 1-6 1.2.1 COPIER OVERVIEW ....................................................................... 1-6 1.2.2 SYSTEM OVERVIEW ...................................................................... 1-6 1.3 COPY PROCESS AROUND THE DRUM................................................. 1-8 1.4 MECHANICAL COMPONENT LAYOUT................................................. 1-10 1.5 DRIVE LAYOUT ..................................................................................... 1-12 1.6 PAPER PATH ......................................................................................... 1-13 1.6.1 STANDARD COPYING.................................................................. 1-13 1.6.2 MULTIPLE 2-SIDE COPYING ....................................................... 1-14 1.7 ELECTRICAL COMPONENT DESCRIPTION ........................................ 1-15
DETAILED DESCRIPTIONS
2. DETAILED SECTION DESCRIPTIONS....................................... 2-1
2.1 PROCESS CONTROL.............................................................................. 2-1 2.1.1 OVERVIEW ..................................................................................... 2-1 2.1.2 PROCESS CONTROL DATA INITIAL SETTING............................. 2-4 2.1.3 LATENT IMAGE CONTROL ............................................................ 2-5 2.1.4 IMAGE DENSITY CONTROL ........................................................ 2-12 2.2 DRUM UNIT............................................................................................ 2-18 2.2.1 OVERVIEW ................................................................................... 2-18 2.2.2 OPC DRUM CHARACTERISTICS................................................. 2-19 2.2.3 DRUM CHARGE............................................................................ 2-20 2.2.4 ERASE........................................................................................... 2-23 2.2.5 CLEANING..................................................................................... 2-25 2.2.6 QUENCHING ................................................................................. 2-30 2.3 DRUM CLEANING AND TONER-RECYCLING...................................... 2-31 2.3.1 TONER TRANSPORT ................................................................... 2-31 2.3.2 FILTERING .................................................................................... 2-32 2.3.3 PUMP MECHANISM...................................................................... 2-33 2.3.4 DRIVE MECHANISM ..................................................................... 2-34 2.3.5 TONER COLLECTION BOTTLE.................................................... 2-35 2.4 OPTICS .................................................................................................. 2-36 2.4.1 OVERVIEW ................................................................................... 2-36 2.4.2 SCANNER DRIVE ......................................................................... 2-37 2.4.3 VERTICAL LENS DRIVE ............................................................... 2-38 2.4.4 HORIZONTAL LENS DRIVE.......................................................... 2-39 2.4.5 HORIZONTAL LENS POSITIONING ............................................. 2-40 2.4.6 3RD SCANNER DRIVE ................................................................. 2-42
SM
i
A246/A247/A248
2.4.7 OPTICS CONTROL CIRCUIT........................................................ 2-43 2.4.8 AUTOMATIC IMAGE DENSITY CONTROL SYSTEM (ADS) ........ 2-44 2.4.9 MANUAL IMAGE DENSITY CONTROL ........................................ 2-46 2.4.10 UNEVEN LIGHT INTENSITY CORRECTION.............................. 2-47 2.4.11 ORIGINAL SIZE DETECTION IN PLATEN MODE ...................... 2-48 2.4.12 HALF TONE MODE ..................................................................... 2-50 2.5 DEVELOPMENT..................................................................................... 2-51 2.5.1 OVERVIEW ................................................................................... 2-51 2.1.2 DEVELOPMENT MECHANISM ..................................................... 2-52 2.1.3 DRIVE MECHANISM ..................................................................... 2-53 2.1.4 CROSSMIXING ............................................................................. 2-54 2.1.5 DEVELOPMENT BIAS................................................................... 2-55 2.1.6 TONER SUPPLY ........................................................................... 2-60 2.6 IMAGE TRANSFER ................................................................................ 2-64 2.6.1 PRE-TRANSFER LAMP ................................................................ 2-64 2.6.2 IMAGE TRANSFER AND PAPER SEPARATION OVERVIEW ..... 2-65 2.6.3 IMAGE TRANSFER AND PAPER SEPARATION MECHANISM... 2-66 2.6.4 TRANSFER BELT UNIT LIFT MECHANISM ................................. 2-68 2.6.5 PAPER TRANSPORTATION AND BELT DRIVE MECHANISM.... 2-69 2.6.6 TRANSFER BELT CLEANING MECHANISM................................ 2-70 2.6.7 TONER COLLECTION MECHANISM............................................ 2-71 2.6.8 TRANSFER ANTI-CONDENSATION HEATER ............................. 2-72 2.7 PAPER FEED ......................................................................................... 2-73 2.7.1 OVERVIEW ................................................................................... 2-73 2.7.2 FRR FEED SYSTEM ..................................................................... 2-74 2.7.3 SLIP CLUTCH MECHANISM......................................................... 2-76 2.7.4 FRR FEED DRIVE MECHANISM .................................................. 2-77 2.7.5 SEPARATION ROLLER RELEASE MECHANISM ........................ 2-79 2.7.6 PAPER RETURN MECHANISM .................................................... 2-80 2.7.7 PAPER SKEW PREVENTION MECHANISM ................................ 2-81 2.7.8 PAPER LIFT MECHANISM............................................................ 2-82 2.7.9 PAPER NEAR END/PAPER END DETECTION ............................ 2-85 2.7.10 TANDEM FEED TRAY................................................................. 2-86 2.7.11 PAPER SIZE DETECTION .......................................................... 2-90 2.7.12 VERTICAL TRANSPORT MECHANISM ..................................... 2-91 2.7.13 TRAY POSITIONING MECHANISM ............................................ 2-92 2.7.14 BY-PASS FEED TABLE .............................................................. 2-95 2.7.15 PAPER REGISTRATION ............................................................. 2-98 2.7.16 REGISTRATION DRIVE MECHANISM ....................................... 2-99 2.7.17 GUIDE PLATE RELEASE MECHANISM................................... 2-100 2.8 IMAGE FUSING.................................................................................... 2-101 2.8.1 OVERVIEW ................................................................................. 2-101 2.8.2 FUSING ENTRANCE GUIDE ...................................................... 2-102 2.8.3 FUSING DRIVE MECHANISM..................................................... 2-103 2.8.4 FUSING LAMP CONTROL .......................................................... 2-104 2.8.5 INVERTER AND PAPER EXIT .................................................... 2-105 2.8.6 INVERTER AND EXIT DRIVE MECHANISM............................... 2-106 2.9 DUPLEX ............................................................................................... 2-107 2.9.1 OVERVIEW ................................................................................. 2-107
A246/A247/A248 ii SM
2.9.2 DRIVE MECHANISM ................................................................... 2-108 2.9.3 DUPLEX ENTRANCE TO DUPLEX TRAY .................................. 2-109 2.9.4 DUPLEX STACKING ................................................................... 2-110 2.9.5 DUPLEX PICK-UP ROLLER MECHANISM ................................. 2-111 2.9.6 DUPLEX PAPER FEED............................................................... 2-112 2.10 ENERGY STAR COMPLIANT MACHINES (ALL THE DESTIMATIONS)............................................................... 2-115 2.11 ENERGY SAVING INFORMATION .................................................... 2-117 2.11.1 ABOUT THE ENERGY SAVING FEATURES OF THIS COPIER............................................................................ 2-117
INSTALLATION
3. INSTALLATION PROCEDURE ................................................... 3-1
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 (A246/A247/A248)...................................................................... 3-3 3.2.1 ACCESSORY CHECK ..................................................................... 3-3 3.2.2 INSTALLATION PROCEDURE........................................................ 3-4 3.2.3 GUIDANCE ROM INSTALLATION (OPTION: EUROPE VERSION ONLY) ......................................... 3-14 3.2.4 PLATEN COVER (OPTION) INSTALLATION................................ 3-15 3.2.5 KEY COUNTER HOLDER INSTALLATION (OPTION).................. 3-16 3.2.6 ORIGINAL TRAY INSTALLATION (OPTION)................................ 3-18 3.3 UNIVERSAL TRAY (TRAY 2) ................................................................. 3-19 3.4 550 SHEETS PAPER TRAY (TRAY 3) ................................................... 3-20 3.5 TANDEM FEED TRAY PAPER SIZE CHANGE (TRAY 1) ..................... 3-22 3.6 DUAL JOB FEEDER (A610) ................................................................... 3-25 3.6.1 ACCESSORY CHECK ................................................................... 3-25 3.6.2 INSTALLATION PROCEDURE...................................................... 3-26 3.7 SORTER STAPLER (A821).................................................................... 3-29 3.7.1 ACCESSORY CHECK ................................................................... 3-29 3.7.2 INSTALLATION PROCEDURE...................................................... 3-30 3.7.3 SORTER ADAPTER INSTALLATION (OPTION)........................... 3-34 3.8 20 BIN SORTER STAPLER (A658) (A246 ONLY) ................................. 3-36 3.8.1 ACCESSORY CHECK ................................................................... 3-36 3.8.2 INSTALLATION PROCEDURE...................................................... 3-37 3.9 LCT (A822) ............................................................................................. 3-41 3.9.1 ACCESSORY CHECK ................................................................... 3-41 3.9.2 INSTALLATION PROCEDURE...................................................... 3-42 3.9.3 PAPER SIZE CHANGE ................................................................. 3-46 3.10 TRANSPORTATION REMARKS .......................................................... 3-49 3.10.1 TONER RECYCLING TUBE CLEANING..................................... 3-49 3.10.2 OTHER OPERATIONS ................................................................ 3-49
SM
iii
A246/A247/A248
SERVICE TABLES
4. SERVICE TABLES ...................................................................... 4-1
4.1 GENERAL CAUTIONS ............................................................................. 4-1 4.1.1 DRUM .............................................................................................. 4-1 4.1.2 DRUM UNIT..................................................................................... 4-1 4.1.3 CHARGE CORONA......................................................................... 4-2 4.1.4 OPTICS ........................................................................................... 4-2 4.1.5 ERASE LAMP .................................................................................. 4-3 4.1.6 DEVELOPMENT UNIT .................................................................... 4-3 4.1.7 TRANSFER BELT UNIT .................................................................. 4-3 4.1.8 CLEANING SECTION...................................................................... 4-4 4.1.9 PRE-TRANSFER LAMP .................................................................. 4-4 4.1.10 PAPER FEED ................................................................................ 4-4 4.1.11 FUSING UNIT ................................................................................ 4-4 4.1.12 USED TONER ............................................................................... 4-5 4.2 SERVICE PROGRAM MODE................................................................... 4-6 4.2.1 SERVICE PROGRAM MODE OPERATION .................................... 4-6 4.2.2 SERVICE PROGRAM MODE TABLES ........................................... 4-8 4.2.3 INPUT CHECK............................................................................... 4-45 4.2.4 OUTPUT CHECK........................................................................... 4-48 4.3 USER PROGRAM .................................................................................. 4-51 4.3.1 HOW TO ENTER AND EXIT UP MODE ........................................ 4-51 4.3.2 UP MODE TABLE.......................................................................... 4-51 4.4 TEST POINTS/DIP SWITCHES/LEDS ................................................... 4-53 4.4.1 DIP SWITCHES ............................................................................. 4-53 4.4.2 TEST POINTS ............................................................................... 4-53 4.4.3 FUSES ........................................................................................... 4-54 4.4.4 LEDS ............................................................................................. 4-54 4.5 SPECIAL TOOLS AND LUBRICANTS ................................................... 4-54 4.5.1 SPECIAL TOOLS........................................................................... 4-54 4.5.2 LUBRICANTS ................................................................................ 4-54 4.6 TOUCH PANEL DISPLAY POSITION ADJUSTMENT ........................... 4-55
PREVENTIVE MAINTENANCE
5. PREVENTIVE MAINTENANCE SCHEDULE............................... 5-1
5.1 PM TABLE ................................................................................................ 5-1 5.2 PM PROCEDURE .................................................................................... 5-5 5.2.1 CLEARING PM COUNTER.............................................................. 5-5 5.2.2 PM PROCEDURE............................................................................ 5-6
REPLACEMENT AND ADJUSTMENT
6. REPLACEMENT AND ADJUSTMENT........................................ 6-1
6.1 EXTERIOR AND INNER COVER REMOVAL........................................... 6-1 6.1.1 FRONT COVER............................................................................... 6-1
A246/A247/A248 iv SM
6.1.2 REAR SIDE...................................................................................... 6-2 6.1.3 INNER COVER ................................................................................ 6-3 6.1.4 RIGHT SIDE .................................................................................... 6-6 6.1.5 LEFT SIDE....................................................................................... 6-7 6.1.6 OPERATION PANEL ....................................................................... 6-8 6.1.7 UPPER COVER............................................................................... 6-9 6.2 PAPER FEED ......................................................................................... 6-10 6.2.1 PAPER TRAY UNIT REMOVAL .................................................... 6-10 6.2.2 PAPER TRAY REMOVAL.............................................................. 6-13 6.2.3 PAPER FEED ROLLERS REPLACEMENT................................... 6-16 6.2.4 PAPER FEED TIMING ADJUSTMENT.......................................... 6-17 6.2.5 PAPER FEED CLUTCH REMOVAL (1ST TRAY PAPER FEED CLUTCH)........................................... 6-20 6.2.6 REAR FENCE RETURN SENSOR REPLACEMENT .................... 6-24 6.2.7 REAR FENCE HP SENSOR REPLACEMENT .............................. 6-25 6.2.8 BOTTOM PAPER SENSOR REPLACEMENT............................... 6-26 6.2.9 BY-PASS FEED TABLE REMOVAL .............................................. 6-27 6.2.10 BY-PASS FEED ROLLERS REPLACEMENT ............................. 6-28 6.2.11 BY-PASS PAPER SIZE SENSOR REPLACEMENT ................... 6-29 6.2.12 BY-PASS FEED CLUTCH AND GUIDE PLATE SOLENOID REMOVAL ................................................................................... 6-31 6.2.13 REGISTRATION MOTOR REMOVAL ......................................... 6-33 6.2.14 PAPER DUST CLEANER CLEANING......................................... 6-34 6.2.15 REGISTRATION SENSOR CLEANING....................................... 6-35 6.2.16 UNIVERSAL TRAY SIZE SWITCH REPLACEMENT .................. 6-36 6.2.17 550-SHEET TRAY SET SWITCH REPLACEMENT .................... 6-37 6.2.18 LIFT MOTOR REMOVAL............................................................. 6-38 6.2.19 PAPER FEED MOTOR REMOVAL ............................................. 6-39 6.2.20 COPIER FEED UNIT REMOVAL................................................. 6-40 6.2.21 BOTTOM PLATE LIFT WIRE REPLACEMENT........................... 6-42 6.2.22 550 SHEETS PAPER TRAY (TRAY 3) ........................................ 6-44 6.2.23 TANDEM FEED TRAY PAPER SIZE CHANGE .......................... 6-46 6.3 OPTICS .................................................................................................. 6-49 6.3.1 EXPOSURE GLASS REMOVAL.................................................... 6-49 6.3.2 EXPOSURE LAMP REPLACEMENT ............................................ 6-50 6.3.3 OPTICS THERMOSWITCH REPLACEMENT ............................... 6-52 6.3.4 SCANNER HP SENSOR REPLACEMENT ................................... 6-53 6.3.5 ADS SENSOR REMOVAL ............................................................. 6-54 6.3.6 SCANNER DRIVE MOTOR ........................................................... 6-55 6.3.7 SCANNER DRIVE WIRES REPLACEMENT ................................. 6-56 6.3.8 THIRD SCANNER REMOVAL ....................................................... 6-72 6.3.9 THIRD SCANNER DRIVE MOTOR/HP SENSOR REPLACEMENT............................................................................ 6-73 6.3.10 LENS HORIZONTAL DRIVE HP SENSOR REPLACEMENT...... 6-75 6.3.11 LENS HORIZONTAL DRIVE MOTOR REPLACEMENT ............. 6-77 6.3.12 APS SENSOR ADJUSTMENT (SENSITIVITY DOWN) ............... 6-79 6.3.13 ARS SENSOR ADJUSTMENT .................................................... 6-80 6.4 TONER RECYCLING ............................................................................. 6-81 6.4.1 TONER RECYCLING UNIT REMOVAL......................................... 6-81
SM v A246/A247/A248
6.4.2 TONER RECYCLING CLUTCH REPLACEMENT ......................... 6-82 6.5 DEVELOPMENT AND TONER SUPPLY................................................ 6-83 6.5.1 DEVELOPMENT UNIT REMOVAL ................................................ 6-83 6.5.2 DEVELOPER REPLACEMENT ..................................................... 6-85 6.5.3 DEVELOPMENT ROLLERS REPLACEMENT .............................. 6-87 6.5.4 TONER DENSITY SENSOR REPLACEMENT .............................. 6-89 6.5.5 TONER BOTTLE DRIVE MOTOR REPLACEMENT ..................... 6-90 6.5.6 DEVELOPMENT FILTER AND PRESSURE RELEASE FILTER REPLACEMENT............................................................................ 6-91 6.5.7 DEVELOPMENT ROLLER SHAFT CLEANING............................. 6-92 6.6 DRUM UNIT............................................................................................ 6-93 6.6.1 DRUM UNIT REMOVAL AND OPC DRUM REPLACEMENT........ 6-93 6.6.2 QUENCHING LAMP REPLACEMENT .......................................... 6-94 6.6.3 GRID PLATE/CHARGE WIRE/WIRE CLEANER REPLACEMENT............................................................................ 6-95 6.6.4 ERASE LAMP AND DRUM POTENTIAL SENSOR REPLACEMENT............................................................................ 6-97 6.6.5 CLEANING BLADE REPLACEMENT ............................................ 6-98 6.6.6 CLEANING BRUSH REPLACEMENT ........................................... 6-99 6.6.7 PICK-OFF PAWL REPLACEMENT ............................................. 6-100 6.6.8 OZONE FILTER REPLACEMENT ............................................... 6-101 6.6.9 PRE-TRANSFER LAMP REMOVAL............................................ 6-102 6.7 TRANSFER BELT UNIT ....................................................................... 6-103 6.7.1 TRANSFER BELT UNIT REMOVAL/INSTALLATION ................. 6-103 6.7.2 TRANSFER BELT REPLACEMENT............................................ 6-105 6.7.3 CLEANING BLADE REPLACEMENT .......................................... 6-107 6.8 FUSING UNIT....................................................................................... 6-108 6.8.1 FUSING UNIT REMOVAL ........................................................... 6-108 6.8.2 FUSING THERMISTOR REPLACEMENT ................................... 6-109 6.8.3 FUSING THERMOFUSE REPLACEMENT ................................. 6-110 6.8.4 FUSING LAMP REPLACEMENT................................................. 6-111 6.8.5 OIL SUPPLY/CLEANING ROLLER REPLACEMENT.................. 6-113 6.8.6 OIL SUPPLY CLEANING BRUSH REPLACEMENT ................... 6-114 6.8.7 HOT ROLLER REPLACEMENT .................................................. 6-115 6.8.8 PRESSURE ROLLER AND BEARING REPLACEMENT ............ 6-117 6.8.9 FUSING STRIPPER PAWL REPLACEMENT.............................. 6-119 6.8.10 FUSING PRESSURE ADJUSTMENT........................................ 6-120 6.8.11 PAPER EXIT UNIT REMOVAL .................................................. 6-121 6.8.12 EXIT SENSOR AND FUSING EXIT SENSOR REPLACEMENT ........................................................................ 6-123 6.8.13 DUPLEX PAPER GUIDE SENSOR AND DUPLEX TRANSPORT SENSOR REPLACEMENT................................. 6-124 6.8.14 PRESSURE ROLLER CLEANING ROLLER REPLACEMENT ........................................................................ 6-125 6.9 DUPLEX UNIT ...................................................................................... 6-126 6.9.1 FEED ROLLER REPLACEMENT ................................................ 6-126 6.9.2 SEPARATION BELT REPLACEMENT ........................................ 6-128 6.9.3 DUPLEX UNIT REMOVAL........................................................... 6-131
A246/A247/A248 vi SM
Rev. 10/2000
6.9.4 SEPARATION CLUTCH/TRANSPORT CLUTCH REMOVAL ......6-132 6.9.5 JOGGER MOTOR REPLACEMENT ............................................6-133 6.10 COPY QUALITY ADJUSTMENT .........................................................6-138 6.10.1 SP ADJUSTMENT MODE ..........................................................6-138 6.10.2 SIDE-TO-SIDE REGISTRATION ADJUSTMENT.......................6-140 6.10.3 UNEVEN EXPOSURE ADJUSTMENT.......................................6-141 6.10.4 IMAGE DENSITY ADJUSTMENT...............................................6-143 6.10.5 SCANNER HEIGHT ADJUSTMENT...........................................6-144 6.10.6 APS SIZE CALIBRATION...........................................................6-145 6.10.7 FUSING EXIT COVER MAGNET POSITIONING ADJUSTMENT ...........................................................................6-146
TROUBLESHOOTING
7. TROUBLESHOOTING ................................................................ 7-1
7.1 SERVICE CALL CONDITIONS .................................................................7-1 7.1.1 SUMMARY .......................................................................................7-1 7.1.2 EXPOSURE......................................................................................7-3 7.1.3 SCANNER ........................................................................................7-5 7.1.4 LENS MAGNIFICATION...................................................................7-8 7.1.5 OPTICS THERMISTOR..................................................................7-10 7.1.6 CHARGE CORONA UNIT ..............................................................7-10 7.1.7 DEVELOPMENT ............................................................................7-11 7.1.8 PROCESS CONTROL SENSORS .................................................7-12 7.1.9 TRANSFER CURRENT..................................................................7-15 7.1.10 DRUM...........................................................................................7-15 7.1.11 PAPER FEED...............................................................................7-16 7.1.12 DUPLEX .......................................................................................7-19 7.1.13 FUSING ........................................................................................7-20 7.1.14 SYSTEM CONTROL ....................................................................7-22 7.1.15 DUAL JOB FEEDER.....................................................................7-23 7.1.16 SORTER STAPLER .....................................................................7-24 7.1.17 OTHERS.......................................................................................7-28 7.2 ELECTRICAL COMPONENT DEFECTS ................................................7-30 7.2.1 SENSORS ......................................................................................7-30 7.2.2 SWITCHES.....................................................................................7-34 7.2.3 FUSES............................................................................................7-35 7.3 FIRMWARE HISTORY ............................................................................7-36
DUAL JOB FEEDER A610
1. OVERALL MACHINE INFORMATION ........................................ 8-1
1.1 SPECIFICATIONS.....................................................................................8-1 1.2 COMPONENT LAYOUT............................................................................8-2 1.2.1 MECHANICAL COMPONENT LAYOUT...........................................8-2 1.2.2 ELECTRICAL COMPONENT LAYOUT ............................................8-3 1.3 ELECTRICAL COMPONENT DESCRIPTION...........................................8-4
SM vii A246/A247/A248
2. DETAILED DESCRIPTION.......................................................... 8-6
2.1 2.2 2.3 2.4 2.5 ORIGINAL PICK-UP MECHANISM .......................................................... 8-6 SEPARATION AND FEED MECHANISM................................................. 8-7 FRICTION BELT DRIVE MECHANISM .................................................... 8-8 ORIGINAL SIZE DETECTION .................................................................. 8-9 TRANSPORT MECHANISM................................................................... 8-11 2.5.1 BASIC OPERATION ...................................................................... 8-11 2.5.2 THIN/THICK ORIGINAL MODES................................................... 8-13 2.6 ORIGINAL FEED-OUT MECHANISM..................................................... 8-14 2.7 TRANSPORT BELT LEVELING MECHANISM ...................................... 8-15 2.8 LIFT MECHANISM ................................................................................. 8-16 2.9 SPECIAL FEATURES............................................................................. 8-17 2.9.1 PRESET MODE............................................................................. 8-17 2.9.2 TWO-SIDED ORIGINAL FEED (AUTO REVERSE) MODE........... 8-18 2.9.3 COMBINE TWO ORIGINALS MODE............................................. 8-19 2.10 TIMING CHARTS WITH ORIGINAL MISFEED DETECTION............... 8-22 2.10.1 A4 SIDEWAYS: ONE-SIDED, TWO ORIGINALS ........................ 8-22 2.10.2 COMBINE TWO ORIGINALS MODE........................................... 8-23 2.10.3 A4 SIDEWAYS: TWO-SIDED, TWO ORIGINALS ....................... 8-24
3. SP MODE .................................................................................. 8-25
3.1 SERVICE TABLES ................................................................................. 8-25 3.1.1 DIP SWITCHES AND SWITCH ..................................................... 8-25 3.1.2 VARIABLE RESISTORS................................................................ 8-26 3.1.3 LEDS ............................................................................................. 8-26 3.1.4 FUSE ............................................................................................. 8-26
4. REPLACEMENTS AND ADJUSTMENTS ................................. 8-27
UPPER COVER REMOVAL ................................................................... 8-27 TRANSPORT BELT REPLACEMENT .................................................... 8-28 FEED ROLLER REPLACEMENT ........................................................... 8-30 FRICTION BELT REPLACEMENT ......................................................... 8-31 SENSORS REPLACEMENT .................................................................. 8-32 4.5.1 ORIGINAL SET/FEED, REGISTRATION-1/-2, AND ORIGINAL WIDTH-1/-2/-3 SENSOR REPLACEMENT.................. 8-32 4.6 FEED-OUT UNIT REMOVAL.................................................................. 8-33 4.7 FEED-OUT MOTOR REPLACEMENT ................................................... 8-34 4.8 INVERTER SOLENOID REMOVAL AND ADJUSTMENT ...................... 8-35 4.9 FEED-OUT SENSOR REPLACEMENT.................................................. 8-36 4.10 INVERTER ROLLER REPLACEMENT................................................ 8-37 4.11 DF POSITION/APS START SENSOR REPLACEMENT ...................... 8-38 4.12 BELT DRIVE MOTOR REPLACEMENT............................................... 8-39 4.13 FEED-IN UNIT REMOVAL.................................................................... 8-40 4.14 FEED-IN MOTOR REPLACEMENT ..................................................... 8-41 4.15 FRICTION BELT MOTOR REPLACEMENT......................................... 8-42 4.16 FEED-IN CLUTCH REPLACEMENT .................................................... 8-43 4.1 4.2 4.3 4.4 4.5
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SM
4.17 STOPPER SOLENOID REPLACEMENT ............................................. 8-44 4.18 VERTICAL REGISTRATION ADJUSTMENT ....................................... 8-45 4.18.1 ONE-SIDED THIN ORIGINAL MODE.......................................... 8-45 4.18.2 TWO-SIDED ORIGINAL MODE................................................... 8-47 4.19 SIDE-TO-SIDE REGISTRATION ADJUSTMENT................................. 8-49 4.20 ADJUSTIN PLATE REMOVAL ............................................................. 8-50 4.20.1 PREVENTING THE REAR SIDE OF ORIGINALS FROM PBECOMING DIRTY ................................................................... 8-50
SORTER STAPLER A821
1. OVERALL MAHCINE INFORMATION ........................................ 9-1
1.1 SPECIFICATIONS .................................................................................... 9-1 1.2 COMPONENT LAYOUT ........................................................................... 9-4 1.2.1 MECHANICAL COMPONENT LAYOUT .......................................... 9-4 1.2.2 DRIVE LAYOUT............................................................................... 9-5 1.3 ELECTRICAL COMPONENT DESCRIPTION .......................................... 9-6
2. DETAILED DESCRIPTION.......................................................... 9-8
2.1 BASIC OPERATION................................................................................. 9-8 2.1.1 NORMAL (PROOF MODE) AND SORT/STACK MODE.................. 9-8 2.1.2 STAPLE MODE ............................................................................. 9-11 2.2 TURN GATE SECTION .......................................................................... 9-13 2.3 BIN DRIVE MECHANISM ....................................................................... 9-14 2.4 BIN HOME POSITION ............................................................................ 9-15 2.5 JOGGER SECTION................................................................................ 9-16 2.6 BIN REAR PLATE DRIVE SECTION...................................................... 9-18 2.7 GRIP ASSEMBLY................................................................................... 9-19 2.7.1 GRIP MOTOR................................................................................ 9-20 2.7.2 GRIP SHIFT MOTOR .................................................................... 9-21 2.8 STAPLE UNIT......................................................................................... 9-22 2.8.1 STAPLE UNIT DRIVE MECHANISM ............................................. 9-22 2.8.2 STAPLER ...................................................................................... 9-23 2.8.3 PUNCH MECHANISM ................................................................... 9-25 2.8.4 STAPLE UNIT PULLED-OUT MECHANISM ................................. 9-26 2.9 JAM DETECTION................................................................................... 9-27 2.10 TIMING CHART .................................................................................... 9-28 2.10.1 SORTER/STAPLER TIMING CHART (PROOF MODE) .............. 9-28 2.10.2 SORTER/STAPLER TIMING CHART (STAPLE MODE) ............. 9-29
3. SP MODE .................................................................................. 9-30
3.1 SERVICE TABLES (MAIN CONTROL BOARD)..................................... 9-30 3.1.1 DIP SWITCHES ............................................................................. 9-30 3.1.2 PUNCH POSITION ........................................................................ 9-31 3.1.3 TEST POINTS ............................................................................... 9-31 3.1.4 FUSES ........................................................................................... 9-31
SM ix A246/A247/A248
4. REPLACEMENTS AND ADJUSTMENTS ................................. 9-32
EXTERIOR COVER REMOVAL ............................................................. 9-32 STAPLER REMOVAL AND REINSTALLATION ..................................... 9-33 JOGGER PLATE REMOVAL AND INSTALLATIOIN.............................. 9-34 BINS REMOVAL..................................................................................... 9-35 MAIN MOTOR REMOVAL ...................................................................... 9-39 GRIP ASSEMBLY REMOVAL ................................................................ 9-40 UPPER GRIP ASSEMBLY REMOVAL ................................................... 9-41 GRIP SHIFT MOTOR REMOVAL........................................................... 9-42 GRIP MOTOR AND SENSORS REMOVAL ........................................... 9-43 4.9.1 GRIP MOTOR/GRIP MOTOR HP SENSOR/ GRIP SHIFT MOTOR HP SENSOR REMOVAL ............................ 9-43 4.10 MAIN CONTROL BOARD REPLACEMENT......................................... 9-44 4.11 STAPLE POSITION ADJUSTMENT ..................................................... 9-45 4.12 PUNCH POSITION ADJUSTMENT STANDARD ................................. 9-46 4.13 HELICAL WHEELS REMOVAL ............................................................ 9-47 4.14 PUNCH UNIT REMOVAL ..................................................................... 9-52 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9
20-BIN SORTER STAPLER A658
1. OVERALL MACHINE INFORMATION ...................................... 10-1
1.1 SPECIFICATIONS .................................................................................. 10-1 1.2 COMPONENT LAYOUT ......................................................................... 10-2 1.2.1 MECHANICAL COMPONENT LAYOUT ........................................ 10-2 1.2.2 DRIVE LAYOUT............................................................................. 10-3 1.2.3 ELECTRICAL COMPONENT DESCRIPTION ............................... 10-4
2. DETAILED DESCRIPTION........................................................ 10-5
2.1 BASIC OPERATION............................................................................... 10-5 2.1.1 NORMAL MODE AND SORT/STACK MODE................................ 10-5 2.1.2 STAPLE MODE ............................................................................. 10-7 2.1.3 BIN DRIVE MECHANISM .............................................................. 10-8 2.1.4 BIN HOME POSITION ................................................................... 10-9 2.1.5 JOGGER MECHANISM............................................................... 10-10 2.1.6 GRIP ASSEMBLY........................................................................ 10-11 2.1.7 STAPLER UNIT ........................................................................... 10-12 2.1.8 STAPLER SWITCH ..................................................................... 10-13 2.1.9 PAPER FEED AND MISFEED DETECTION TIMING.................. 10-14 2.1.10 JAM DETECTION ...................................................................... 10-16
3. REPLACEMENT AND ADJUSTEMENT ................................. 10-17
3.1 EXTERIOR COVER REMOVAL ........................................................... 10-17 3.1.1 FRONT COVER........................................................................... 10-17 3.1.2 REAR COVER ............................................................................. 10-17
A246/A247/A248 x SM
REV. 05/99
3.1.3 TOP COVER.................................................................................10-17 3.1.4 LOWER COVER ...........................................................................10-17 3.2 GRIP ARM REPLACEMENT .................................................................10-19 3.3 BIN REMOVAL ......................................................................................10-20 3.4 TRANSPORT MOTOR REMOVAL ........................................................10-21
LARGE CAPACITY TRAY A822
1. OVERALL MACHINE INFORMATION ....................................... 11-1
1.1 SPECIFICATIONS .................................................................................. 11-1 1.2 MECHANICAL COMPONENT LAYOUT................................................. 11-2 1.3 ELECTRICAL COMPONENT DESCRIPTION ........................................ 11-3
2. DETAILED DESCRIPTION......................................................... 11-4
2.1 MECHANICAL OPERATION .................................................................. 11-4 2.2 PAPER LIFT MECHANISM .................................................................... 11-5 2.3 PAPER END DETECTION ..................................................................... 11-7
3. REPLACEMENTS AND ADJUSTMENTS.................................. 11-8
3.1 EXTERIOR COVER REMOVAL ............................................................. 11-8 3.1.1 FRONT COVER REMOVAL .......................................................... 11-8 3.1.2 REAR LOWER COVER REMOVAL............................................... 11-8 3.1.3 TOP COVER REMOVAL ............................................................... 11-8 3.2 PAPER FEED ROLLERS REPLACEMENT............................................ 11-9 3.3 LCT FEED CLUTCH REMOVAL ...........................................................11-10 3.4 UPPER COVER SWITCHES REMOVAL ..............................................11-11 3.5 SIDE-TO-SIDE REGISTRATION ADJUSTMENT ..................................11-12
APPENDIX
1.0 DUPLEX JAM TROUBLESHOOTING GUIDE ............................A1
SM
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A246/A247/A248
IMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the copier and peripherals, make sure that the copier power cord is unplugged. 2. The wall outlet should be near the copier and easily accessible. 3. Note that some components of the copier and the paper tray unit are supplied with electrical voltage even if the main switch is turned off. 4. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components. 5. The inside and the metal parts of the fusing unit become extremely hot while the copier is operating. Be careful to avoid touching those components with your bare hands. 6. The copier is not attached to the table. Pushing the copier too heard may cause it to drop onto the floor. While moving the copier, push the table. 7. When the main switch is tuned on, the machine will suddenly start turning to perform the developer initialization. Keep hand away from any mechanical and electrical components during this period.
HEALTH SAFETY CONDITIONS
1. Never operate the copier without the ozone filters installed. 2. Always replace the ozone filters with the specified ones at the specified intervals. 3. Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it may cause temporary eye discomfort. Try to remove with eye drops or flush with water as first aid. If unsuccessful, get medical attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The copier and its peripherals must be installed and maintained by a customer service representative who has completed the training course on those models. CAUTION: The RAM board on the main control board has a lithium battery which can explode if replaced incorrectly. Replace the RAM board only with an identical one. The manufacturer recommends replacing the entire RAM board. Do not recharge or burn this battery. Used RAM board must be handled in accordance with local regulations.
SM
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A246/A247/A248
SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Do not incinerate the toner cartridge or the used toner. Toner dust may ignite suddenly when exposed to open flame. 2. Dispose of used toner, developer, and organic photoconductor according to local regulations. (These are non-toxic supplies.) 3. Dispose of replaced parts in accordance with local regulations. 4. When keeping used RAM boards in order to dispose of them later, do not put more than 100 RAM boards per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat build-up.
A246/A247/A248
b
SM
Rev. 05/99 TAB POSITION 1 TAB POSITION 8 TAB POSITION 7 TAB POSITION 6 TAB POSITION 5 TAB POSITION 4 TAB POSITION 3 TAB POSITION 2
OVERALL INFORMATION SORTER STAPLER A821 APPENDIX DETAILED DESCRIPTIONS 20 BIN SORTER STAPLER A658
INSTALLATION LARGE CAPACITY TRAY A822
SERVICE TABLES
PREVENTIVE MAINTENANCE
REPLACEMENT AND ADJUSTMENT
TROUBLESHOOTING
DUAL JOB FEEDER A610
OVERALL INFORMATION
SPECIFICATION
1.1 SPECIFICATION
Configuration: Copy Process: Toner Supply Control: Photoconductor: Originals: Original Size: Original Alignment: Copy Paper Size: Console Dry electrostatic transfer system Fuzzy Control OPC drum Sheet/Book Maximum A3/11" x 17" Left rear corner Maximum A3/11" x 17" (Tray & By-pass) A4/81/2" x 11" (Tandem LCT) Minimum A5/51/2" x 81/2" (Tray) A4/81/2" x 11" (Tandem LCT) A6/51/2" x 81/2" (By-pass) Maximum A3/11" x 17" Minimum A5/51/2" x 81/2" (Sideways) Paper tray: 52 ~ 128 g/m2, 14 ~ 34 lb By-pass feed table: 52 ~ 200 g/m2, 14 ~ 53 lb Duplex copying: 64 ~ 104 g/m2, 17 ~ 24 lb 4 Enlargement and 5 Reduction + Create Margin (93%)
A4/A3 Version 200% 141% 122% 115% 100% 82% 75% 71% 65% 50% LT/LDG Version 200% 155% 129% 121% 100% 85% 77% 74% 65% 50%
Duplex Copying: Copy Paper Weight:
Reproduction Ratios:
Enlargement Full Size
Reduction
SM
1-1
A246/A247/A248
Overall Information
1. OVERALL MACHINE INFORMATION
SPECIFICATION
Power Source:
115 V, 60 Hz, more than 20 A (for N.A) 220 ~ 240 V, 50 Hz/60 Hz, more than 10 A (for Europe and Asia)
Power Consumption:
- A246 copier Warm up Stand-by*2 Low Power mode*2 Copying Maximum Off-mode Copier only 1.20 kVA 0.22 kVA 0.185 kVA 1.40 kVA 1.70 kVA 0.001 kVA Full system*1 1.22 kVA 0.24 kVA 0.205 kVA 1.40 kVA 1.75 kVA 0.001 kVA
- A247 copier Warm up Stand-by*2 Low Power mode*2 Copying Maximum Off-mode Copier only 1.20 kVA 0.22 kVA 0.21 kVA 1.50 kVA 1.70 kVA 0.001 kVA Full system*1 1.22 kVA 0.24 kVA 0.23 kVA 1.50 kVA 1.75 kVA 0.001 kVA
- A248 copier Warm up Stand-by*2 Low Power mode*2 Copying Maximum Off-mode Copier only 1.20 kVA 0.22 kVA 0.21 kVA 1.60 kVA 1.70 kVA 0.001 kVA Full system*1 1.22 kVA 0.24 kVA 0.23 kVA 1.60 kVA 1.75 kVA 0.001 kVA
*1Full System: · Mainframe with dual job feeder, sorter stapler and 3,500-sheet large capacity tray 2 * : When the anti-condensation heaters are off.
A246/A247/A248
1-2
SM
SPECIFICATION
Noise Emission:
Sound Pressure Level: The measurements are made according to ISO7779
(The measurements are made according to ISO 7779 at the operator position.) Stand-by Copying Copier only Less than 34 dB (A) Less than 57 dB (A) (average)
- A246 copier Sound pressure level
Sound power level
(The measurements are made according to ISO 7779.) Stand-by Copying Copier only Less than 48 dB (A) Less than 71 dB (A) (average)
- A247 copier Sound pressure level
(The measurements are made according to ISO 7779 at the operator position.) Stand-by Copying Copier only Less than 34 dB (A) Less than 59 dB (A) (average)
Sound power level
(The measurements are made according to ISO 7779.) Stand-by Copying Copier only Less than 51 dB (A) Less than 72 dB (A) (average)
- A248 copier Sound pressure level
(The measurements are made according to ISO 7779 at the operator position.) Stand-by Copying Copier only Less than 36 dB (A) Less than 59 dB (A) (average)
Sound power level
(The measurements are made according to ISO 7779.) Stand-by Copying Copier only Less than 54 dB (A) Less than 73 dB (A) (average)
SM
1-3
A246/A247/A248
Overall Information
SPECIFICATION
Dimensions:
Copier only Copier with dual job feeder, sorter stapler, and 3,500-sheet large capacity tray Copier with dual job feeder, sorter stapler with punch, and 3,500-sheet large capacity tray Width 690 mm 27.2" 1,659 mm 65.4" 1,659 mm 65.4" Depth 698 mm 27.6" 698 mm 27.6" 698 mm 27.6" Height 980 mm 38.6" 1,113 mm 43.9" 1,113 mm 43.9"
Weight:
Copier only: (Without the optional platen cover = Approximately 2 kg) Approximately 175 kg From 50% to 200% in 1% steps
A4/LT (sideways) A3/DLT 51 (A4 others) A246 copier 50 (A4/in France) 50 (LT) A247 copier A248 copier 60 70 26 31 36 B4/LG 32 38 44
Zoom: Copying Speed:
Warm-up Time: First Copy Time: (A4/51/2" x 11" sideways from the 1st feed station) Copy Number Input: Manual Image Density Selection: Automatic Reset: Copy Paper Capacity:
Less than 5 minutes (A246 copier, 20°C) Less than 5.5 minutes (A247/A248 copier, 20°C) 3.1 seconds (A246 copier) 2.6 seconds (A247/A248 copiers) Number keys, 1 to 999 (count up or count down) 9 steps 1 minute standard setting; can also be set from 1 second to 999 seconds or no auto reset. · By-pass feed table: approx. 50 sheets · Paper tray: approx. 550 sheets · Tandem LCT tray: approx. 1,550 x 2=3100 sheets 1,160 g/cartridge 1 Kg bag, black only.
Toner Replacement: Developer Replacement:
A246/A247/A248
1-4
SM
SPECIFICATION
Optional Equipment:
· Platen cover (A528-04) · Dual job feeder (A610) · 20 bin sorter stapler (Floor type) (A821-17: Ricoh, -22: NRG, -15: Savin/Ges U.S.A. 26: Infotec) · 3,500-sheet Large capacity tray (A822) · Receiving tray (A446-05) · Key Counter Bracket D (A509-03) · 20 bin sorter Stapler (Floor type) with punch (A821-57 (3 holes), -67 (2 holes): Ricoh, -62: NRG, -66: Infotec, -55: Savin/Ges U.S.A.) · Guidance ROM KIT Type U (A870) (Language) · Editing sheet (spare part) · Original Tray type F (A430-07) · Sorter Adapter type L (A902-19) · 20 bin sorter stapler (Hunging type) (A658) (A246 copier only)
When the 20 bin sorter stapler (A658) is installed onto A246 copier, sorter adapter type L is required.
SM
1-5
A246/A247/A248
Overall Information
MACHINE CONFIGURATION
Rev. 06/99
1.2 MACHINE CONFIGURATION
1.2.1 COPIER OVERVIEW
- A246/A247/A248 copiers · Tandem LCT (including two 1,550-sheet LCT · Two 550-sheet paper trays · Optional 3,500-sheet large capacity tray · By-pass (approx. 50 sheets)
50
1,550 x 2 550 550
A246V500.WMF
(3,500)
1.2.2 SYSTEM OVERVIEW
DJF Hanging S/S S/S with Punch S/S Original Tray