Brother DCP-9045CDN Service Manual
  1. Manuals
  2. Brands
  3. Brother Manuals
  4. Printer
  5. DCP-9045CDN
  6. Service manual

Brother DCP-9045CDN Service Manual

Color laser printer
Hide thumbs Also See for DCP-9045CDN:
1
2
3
4
Table Of Contents
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
Table of Contents

Advertisement

Quick Links

See also: Reference Manual , Software User Manual
Brother Color Laser Printer
DCP-9045CDN/MFC-9840CDW
Read this manual thoroughly before carrying out any maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
July 2007
SM-FAX076
(10)

SERVICE MANUAL

MODEL:
Confidential

Advertisement

Table of Contents
loading

Related Manuals for Brother DCP-9045CDN

Summary of Contents for Brother DCP-9045CDN

  • Page 1: Service Manual

    Brother Color Laser Printer SERVICE MANUAL MODEL: DCP-9045CDN/MFC-9840CDW Read this manual thoroughly before carrying out any maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. July 2007 SM-FAX076 (10) Confidential...
  • Page 2 Ltd., covering the latest product descriptions and specifications. The contents of this manual and the specifications of this product are subject to change without notice. Brother reserves the right to make changes without notice in the specifications and materials contained herein...

  • Page 3: Required After Parts Replacement

    (hereinafter referred to as "the machine"). This information is vital to the service personnel to maintain the high printing quality and performance of the machine. This service manual covers the DCP-9045CDN/MFC-9840CDW machines. This manual consists of the following chapters: CHAPTER 1: TROUBLESHOOTING Details of error messages and codes that the incorporated self-diagnostic functions of the machine will display if any error or malfunction occurs.
  • Page 4 APPENDIX 1: WORKER SWITCH SETTINGS (WSW) Describes the functions of the worker switches, which can be divided into two groups: one is for customizing preferences designed for the destination and the other is for modifying preferences that match the machine to the environmental conditions. Use the latter group if the machine malfunctions due to mismatching.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS REGULATION.................... VIII SAFETY INFORMATION................XII CHAPTER 1 TROUBLESHOOTING ............1-1 1. INTRODUCTION ......................1-1 1.1 Precautions ........................1-1 1.2 Initial Check........................1-1 2. ERROR CODES ......................1-3 2.1 Error Indication ........................1-3 2.2 Error Cause and Remedy ....................1-5 2.2.1 Recoverable Error by User Check ................
  • Page 6 CHAPTER 3 DISASSEMBLY AND ASSEMBLY ........3-1 1. SAFETY PRECAUTIONS ................... 3-1 2. PACKING ........................3-2 3. SCREW TORQUE LIST....................3-3 4. LUBRICATION ......................3-7 5. OVERVIEW OF GEARS ................... 3-15 6. HARNESS ROUTING ....................3-20 7. DISASSEMBLY FLOW ..................... 3-34 8.
  • Page 7 8.31 Front Door Unit ASSY ....................3-142 8.32 Harness Cover MP....................... 3-145 8.33 Front Door Sub......................3-146 8.34 EL Electrode Spring L/R....................3-147 8.35 Hook Cover/ Front Cover Release Button/ Button Spring/ Front Door Main ....3-148 8.36 Hook Shaft/ Hook/ Hook Spring ................... 3-150 8.37 Engine PCB ASSY .......................
  • Page 8 CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTING, REQUIRED AFTER PARTS REPLACEMENT....4-1 1. IF YOU REPLACE THE MAIN PCB................4-1 2. IF YOU REPLACE THE ENGINE PCB ..............4-11 3. IF YOU REPLACE THE FB UNIT ................4-14 4. IF YOU REPLACE THE TRANSFER HVPS PCB UNIT OR REGISTRATION-MARK SENSOR PCB ASSY 1, 2..........
  • Page 9 1.4.25 Error Code Indication (Function code 82)............5-37 1.4.26 Developing Bias Voltage Correction (Function code 83)........5-37 1.4.27 Output of Transmission Log to the Telephone Line (Function code 87) ..... 5-38 1.4.28 Exit from the Maintenance Mode (Function code 99).......... 5-38 2.

  • Page 10: Regulation

    REGULATION <For Europe and Other countries> Radio interference (220 to 240 volt model only) This machine follows EN55022 (CISPR Publication 22)/Class B. Before you use this product, make sure that you use one of the following interface cables. (1) A USB cable. The cable must not be more than 2 meters long.
  • Page 11 Internal laser radiation Maximum radiation power: 30 mW Wave length: 780 - 800 nm Laser class: Class 3B EU Directive 2002/96/EC and EN50419 (European Union only) This equipment is marked with the recycling symbol (below). It means that at the end of the life of the equipment you must dispose of it separately at an appropriate collection point and not place it in the normal domestic unsorted waste stream.
  • Page 12 Important A shielded interface cable should be used to ensure compliance with the limits for a Class B digital device. Changes or modifications not expressly approved by Brother Industries, Ltd. could void the user’s authority to operate the equipment. Confidential...
  • Page 13 FDA regulations and must be attached to laser products marketed in the United States. MANUFACTURED: Brother Technology (Shenzhen) Ltd. NO6 Gold Garden Ind., Nanling Buji, Longgang, Shenzhen, China This product complies with FDA performance standards for laser products except for deviations pursuant to Laser Notice No.50, dated July 26, 2001.

  • Page 14: Safety Information

    SAFETY INFORMATION Caution for Laser Product (WARNHINWEIS fur Laser drucker) CAUTION: When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.
  • Page 15 Definitions of Warnings, Cautions, Notes and Memos The following conventions are used in this manual: Mark Contents Warnings tell you what to do to prevent possible personal injury. Electrical Hazard icons alert you to a possible electrical shock. Hot Surface icons warn you not to touch machine parts that are hot. Cautions specify procedures you must follow or avoid to prevent possible damage to the machine or other objects.
  • Page 16 Safety Precautions Listed below are the various kinds of “WARNING” messages included in this manual. WARNING There are high voltage electrodes inside the machine. Before you clean the inside of the machine or replace parts, make sure that you have turned off the power switch and unplugged the machine from the AC power outlet.
  • Page 17 WARNING DO NOT use a vacuum cleaner to clean up scattered toner. Doing this might cause the toner dust to ignite inside the vacuum cleaner, potentially starting a fire. Carefully clean the toner dust with a dry, lint-free cloth and dispose of it according to local regulations. DO NOT use any type of spray to clean inside or outside of the machine.
  • Page 18 WARNING When you move the machine, grasp the side hand holds that are located at the bottom of the machine. DO NOT carry the machine by holding scanner unit. To prevent injuries when moving or lifting this machine, make sure to use at least two people. Use caution when installing or modifying telephone lines.
  • Page 19 About Copying CAUTION LEGAL LIMITATIONS Color reproductions of certain documents are illegal and may result in either criminal or civil liability. This memorandum is intended to be a guide rather than a complete listing of every possible prohibition. In case of doubt, we suggest that you check with counsel as to any particular questionable documents.

  • Page 20: Chapter 1 Troubleshooting

    CHAPTER 1 TROUBLESHOOTING INTRODUCTION Troubleshooting is the counter measure procedures that the service personnel should follow if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible troubles which may occur in future and determine the troubleshooting procedures, so this chapter covers some sample troubles.
  • Page 21 <Paper> (1) A recommended type of paper is being used. (Refer to “2.6 Paper” in Reference (2) The paper is not damp. (3) The paper is not short-grained paper or acid paper. <Consumable Parts> (1) The drum unit (including the toner cartridge) is installed correctly. (2) The belt unit and waste toner box are installed correctly.

  • Page 22: Error Codes

    ERROR CODES This machine includes a self-diagnosis function. If the machine does not work normally it judges that an error has occurred, and indicates the corresponding error message on the LCD, which in turn helps the end user to quickly find out the problem. Error Indication The error codes shaded in the table below are recoverable errors if following the User Check items.
  • Page 23 Error Error Refer Refer Problem Problem codes codes Tray 1 (T1) is not installed into the 1-24 Detection error of the scanning area 1-30 machine. on the right end Tray 2 (T2) is not installed into the 1-24 Detection error of horizontal scanning 1-31 machine.

  • Page 24: Error Cause And Remedy

    Error Cause and Remedy 2.2.1 Recoverable Error by User Check These errors are recoverable by following the message indicated on the LCD or following the items indicated in User Check. Error code 50 Drum End Soon Replace the drum unit User Check - Replace the drum unit with a new one.
  • Page 25 Error code 54 Change Parts Fuser Unit Replace the fuser unit User Check - Replace the fuser unit with a new one. - After replacing the fuser unit, reset the counter using the control panel on the machine. (Refer to “2.3 Parts Life Reset Function”...
  • Page 26 Error code 99 Size Error DX Press Cancel. Specify the correct paper and load the same size paper as the Printer driver setting. Specified paper size is not supported for duplex printing (DX). User Check - Check if the selected paper is supported for duplex printing. - Check the size setting of the tray to feed paper.

  • Page 27: Service Call Error

    2.2.2 Service Call Error Check the User Check items first. If the same problem occurs follow each procedure in the order of the number described in the Step column in the table below. Error code 20(K) Print Unable 20 Turn the power off and then back on again. Laser diode failure (K) Error code 21(Y) Print Unable 21...
  • Page 28 Error code 25 Print Unable 25 Turn the power off and then back on again. Develop drive motor failure Error code 26 Print Unable 26 Turn the power off and then back on again. Belt drive motor failure Error code 27 Print Unable 27 Turn the power off and then back on again.

  • Page 29: Error Code 2A

    Error code 2A Print Unable 2A Turn the power off and then back on again. Belt cleaner release sensor failure Step Cause Remedy Rotation defective of release Replace the waste toner box. shaft A of waste toner box. Harness connection failure Check the harness connection between the belt between belt cleaner release cleaner release sensor PCB and belt cleaner...
  • Page 30 Error code 2C(K) Print Unable 2C Turn the power off and then back on again. Error code 2D(Y) Print Unable 2D Turn the power off and then back on again. Error code 2E(M) Print Unable 2E Turn the power off and then back on again. Error code 2F(C) Print Unable 2F Turn the power off and then back on again.
  • Page 31 Error code 31 Print Unable 31 Turn the power off and then back on again. Density sensor failure Error code 32 Print Unable 32 Turn the power off and then back on again. Density sensor shutter performance malfunction User Check - Check if there is a scratch, dirt or the like on the belt unit.
  • Page 32 Error code 34 Print Unable 34 Color adjustment shutter failure Step Cause Remedy Density sensor shutter Correct catching of the density sensor shutter. catching on some position Density sensor holder ASSY Reassemble the density sensor holder ASSY assembling failure correctly. Error code 35 Print Unable 35 Turn the power off and then back on again.
  • Page 33 Error code 38 Print Unable 38 Turn the power off and then back on again. THM (Thermistor) sensor failure Error code 39 Print Unable 39 Turn the power off and then back on again. HUM (Humidity) sensor failure Step Cause Remedy Harness connection failure of Check the harness connection of the THM/HUM...
  • Page 34 Error code 3B Print Unable 3B Turn the power off and then back on again. Main PCB RAM failure Step Cause Remedy Main PCB failure Replace the main PCB ASSY. Error code 3D Print Unable 3D Turn the power off and then back on again. Main PCB failure (Any of the PCBs is judged to be failure by the PCB checker, or it is not tested with the checker.) Step...
  • Page 35 Error code 57 Jam Duplex Pull out Tray 1 completely. Check inside the machine or open the Back Cover to remove the jammed paper. Paper jam while turning it over in duplex printing, or DX (Duplex) solenoid failure User Check - Check if the paper is jammed or not.
  • Page 36 Error code 5A Print Unable 5A Turn the power off and then back on again. Charge HVPS PCB failure Step Cause Remedy Charge HVPS PCB ASSY Check the harness connection between the harness connection failure charge HVPS PCB and engine PCB, and the one between the charge HVPS PCB and low-voltage power supply PCB.
  • Page 37 Error code 60(C), 61(M), 62(Y), 63(K) Toner Life End ***(*) Replace Toner Cartridge. : The appropriate color is shown in “ ***(*) ”. Toner cartridge is at the end of life. User Check - Gently shake the toner cartridge of the appropriate color from side to side and install it again. - Replace the toner cartridge of the appropriate color.
  • Page 38 Error code 68 Print Unable 68 Turn the power off and then back on again. Fuser unit failure (The side thermistor detects higher temperature than the specified value.) Error code 69 Print Unable 69 Turn the power off and then back on again. Fuser unit failure (The side thermistor detects lower temperature than the specified value.) Error code 6A Print Unable 6A...
  • Page 39 Error code 71 Print Unable 71 Turn the power off and then back on again. Polygon motor failure Error code 72 Print Unable 72 Turn the power off and then back on again. Beam detecting sensor (K) failure Error code 73 Print Unable 73 Turn the power off and then back on again.
  • Page 40 Error code 74 (* This error can be found out only in “Maintenance mode 82”.) Print Unable 74 Toner cartridge whose color is used reaches the end of life during printing. Error code 87 Calibrate Calibration failed. Insufficient Toner for Calibration. Toner cartridge whose color is used reaches the end of life when implementing calibration from the control panel.
  • Page 41 Error code 7D Drum Error Slide the Green tab on Drum Unit in each color. Refer to the User’s Guide for the procedures. Dirt on drum unit User Check - Clean the corona wire in the drum unit. - Replace the drum unit with a new one. Step Cause Remedy...
  • Page 42 Error code 84 (Jam Rear) Jam Rear Open the Back Cover and remove the jammed paper. Paper jam rear side of the machine Error code 88 (Jam Inside) Jam Inside Open the Front Cover, pull out the Drum Unit completely and remove the jammed paper.
  • Page 43 Error code 85 No Tray A Tray is not detected, install Tray 1. Tray 1 (T1) is not installed into the machine. User Check - Check if tray 1 (T1) is installed into the machine. - Check if the paper is jammed in tray 1 (T1). Step Cause Remedy...
  • Page 44 Error code 8A (T1) Jam Tray 1 Remove the jammed paper from Tray 1. Error code 8B (LT) Jam Tray 2 Remove the jammed paper from Tray 2. Error code 8C (MP) Jam MP Tray Remove the jammed paper from Multi Purpose Tray and press start. Paper jam in the appropriate tray User Check - Check if the paper is jammed in the appropriate tray.
  • Page 45 Error code 8E Registration Registration failed. Press start and try again. Auto color registration failure when implementing it from the control panel Error code 8F Registration Registration failed. See Troubleshooting chapter in User’s Guide. Sensor sensitivity adjustment failure when implementing auto color registration from the control panel Error code 9D Registration...
  • Page 46 Error code A1 Cover is Open Close the Front Cover. Front cover opened Step Cause Remedy Front cover interlock switch Check the sensor performance following the failure procedure described in “Maintenance mode 32”. If any problem occurs, replace the front cover interlock switch ASSY.
  • Page 47 Scanner unit failure Replace the FB unit. Main PCB failure Replace the main PCB ASSY. Error code A7 Machine Error Unplug machine, then call Brother. There is no registration in scanning color parameter data. Step Cause Remedy Main PCB failure Replace the main PCB ASSY.
  • Page 48 Error code AE Unable to Scan See Troubleshooting and routine maintenance chapter in User's Guide. FB unit home position sensor is not turned on. Step Cause Remedy Drive PCB failure Replace the drive PCB. Belt broken Replace the belt. Home position sensor failure Replace the home position sensor.
  • Page 49 Error code B2 SCANNER ERROR Gain control data level error for CCD unit scanning. * This error is indicated on the LCD in the maintenance mode. Step Cause Remedy CCD unit failure Replace the CCD unit. Main PCB failure Replace the main PCB ASSY. Error code B3 SCANNER ERROR Detection error of the scanning area on the left end...
  • Page 50 Error code B5 SCANNER ERROR Detection error of horizontal scanning edge reduction in scanning area setting * This error is indicated on the LCD in the maintenance mode. Error code B6 SCANNER ERROR Detection error of horizontal scanning edge magnification in scanning area setting * This error is indicated on the LCD in the maintenance mode.
  • Page 51 Error code BD SCANNER ERROR Black level data error * This error is indicated on the LCD in the maintenance mode. Step Cause Remedy Scanner unit failure Replace the FB unit. Main PCB failure Replace the main PCB ASSY. Error code BE SCANNER ERROR Detection error of scanning starting edge * This error is indicated on the LCD in the maintenance mode.
  • Page 52 Error code C0(K) Cartridge Error Put the Black (K) Toner Cartridge back in. Identification failure for a new toner cartridge (K) Error code C1(Y) Cartridge Error Put the Yellow (Y) Toner Cartridge back in. Identification failure for a new toner cartridge (Y) Error code C2(M) Cartridge Error Put the Magenta (M) Toner Cartridge back in.
  • Page 53 Error code C4 Tray 2 Error Take out Tray 2 and push it back in firmly. Tray 2 (LT) plate-up function malfunction User Check - Check if Tray 2 (LT) is installed into the machine. Step Cause Remedy Connection failure between Replace the connector.
  • Page 54 Error code C8 Out of Memory Secure Print Data is full. Press Cancel and delete the previously stored data. RAM area for secure data full User Check - Delete the stored data. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. Error code CA Unusable Device Remove the Device.
  • Page 55 Error code CC No Fuser Unit Install the Fuser Unit. Fuser unit is not installed into the machine. User Check - Check if the fuser unit is installed into the machine. Step Cause Remedy Harness connection failure Check the harness connection between the fuser between fuser unit connector unit connector and engine PCB, and reconnect it.
  • Page 56 Electrodes location of the drum unit Fig. 1-1 Electrodes location of the front door unit ASSY Fig. 1-2 <How to clean the electrodes> Turn off the power switch. Unplug the machine from the AC power outlet, and leave the machine for a few minutes.
  • Page 57 Error code CE No Waste Toner Install the Waste Toner Box. Refer to the User’s Guide for how to install. Waste toner box is not installed into the machine. User Check - Check if the waste toner box is installed into the machine correctly. Step Cause Remedy...
  • Page 58 Error code D0-DF Press Stop Key Modem error User Check - Turn the power switch off and on and check if the machine is recovered from the error. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. Error code E0 Print Unable E0 Program error.
  • Page 59 Error code ED Print Unable ED Turn the power off and then back on again. Failure of wireless LAN connection (Connection to the wireless LAN module is failed when the machine is turned ON.) Error code EE Print Unable EE Turn the power off and then back on again.

  • Page 60: Paper Feeding Problems

    PAPER FEEDING PROBLEMS Problems related to paper feeding are end user recoverable if following the User Check items. If the same problem occurs again, follow each procedure in the order of the number described in the Step column in the tables below. No Feeding Step Cause...

  • Page 61: Paper Jam

    Paper Jam Paper jam in the paper tray and front cover Step Cause Check Remedy Result Belt unit Does the belt unit move Replace the belt unit. malfunction correctly? Registration front Does the registration front Re-assemble the actuator move actuator move smoothly? registration front actuator.

  • Page 62: Dirt On Paper

    Dirt on Paper User Check - Check if the paper is loaded into the paper tray correctly. - Turn over the stack of paper in the paper tray, or try rotating the paper 180° in the paper tray. Step Cause Check Remedy Result...

  • Page 63: Image Defect Troubleshooting

    IMAGE DEFECT TROUBLESHOOTING Image Defect Examples Light on the  One color is light Faulty registration Dark whole page Poor fixing Completely blank Image distortion All one color Dirt on the back of paper Vertical streaks Vertical streaks in a  Horizontal stripes light background White vertical streaks on one color image White horizontal stripes on one color image Faint print White spots on one color image One color spots or dirt One color band Downward fogging  Horizontal lines Ghost Color   Fogging of solid color misregistration Unstable color  Hollow print Dirt on the bottom White vertical lines density end of paper appear on image Fig.

  • Page 64: Diameter Of Rollers

    Diameter of Rollers Image defects which appear periodically may be caused by failure of a roller. Specify the cause referring to the diameters of the rollers or pitch which appears in the image as shown in the table below. Parts name Diameter The pitch which appears in the image...

  • Page 65: One Color Is Light

    One color is light User Check - Check the machine’s environment. High temperature and high humidity conditions can cause this problem. - Replace the toner cartridge or drum unit with a new one. - Implement calibration from the control panel. Step Cause Check...

  • Page 66: Faulty Registration

    Faulty registration Step Cause Check Remedy Result Registration rear Does the registration rear Re-assemble the actuator operating actuator move smoothly? registration rear actuator. smoothly or is it catching. Engine PCB Is the problem solved after Replace the engine PCB failure replacing the engine PCB ASSY.

  • Page 67: Poor Fixing

    Poor fixing User Check - Replace the drum unit with a new one. - Replace the toner cartridge with a new one. - Implement calibration from the control panel. Step Cause Check Remedy Result Fuser unit failure Is the problem solved Replace the fuser unit.

  • Page 68: Image Distortion

    Image distortion Step Cause Check Remedy Result Laser unit not Is the laser unit Assemble the laser unit assembled assembled into the correctly and secure the correctly machine securely? screw. (Check if there is no gap.) Incorrect radiation Is the problem solved after Replace the laser unit.

  • Page 69: Vertical Streaks

    Dirt on the back of paper User Check - If there is dirt on the back of the paper in duplex printing, the back of the paper tray may be dirty. Clean the back of the paper tray. Step Cause Check Remedy Result...

  • Page 70: Horizontal Stripes

    Vertical streaks in a light background User Check - Clean the inside of the machine and the corona wire in the drum unit. - Replace the toner cartridge with a new one. Step Cause Check Remedy Result Drum unit failure Is the problem solved after Replace the drum unit.

  • Page 71: White Vertical Streaks On One Color Image

    White vertical streaks on one color image User Check - Clean the scanner windows of the appropriate color with a soft lint-free cloth. - Check if there is no dust in the gap between the toner cartridge and drum frame. - Replace the toner cartridge with a new one.

  • Page 72: Faint Print

    Faint print User Check - Check that the machine is installed on a level surface. - Replace the toner cartridge with a new one. - Clean the scanner windows with a soft cloth. Step Cause Check Remedy Result Laser unit failure Is the problem solved after Replace the laser unit.
  • Page 73 Note: If you have print quality problems, clean the drum unit as follows: (1) Pull the drum unit out of the machine and take all the toner cartridges out of the drum unit. (2) Turn the drum unit over by holding the handle. Make sure that the drum unit gears “1” are on the left hand.
  • Page 74 (4) Turn the drum unit gear to the direction of the arrow as shown in the figure below by hand while looking at the surface of the drum “1”. “1” Fig. 1-7 (5) When you have found the mark on the drum that matches the print sample, wipe the surface of the drum gently with a cotton swab until the dust or paper powder on the surface comes off.

  • Page 75: One Color Spots Or Dirt

    One color spots or dirt User Check - Damp (wet) paper might be used. Try changeing to freshly unopened paper. - Toner may be empty. Replace the toner cartridge with a new one. - If the same problem occurs after printing a few pages, the adhesive of a label or the like, paper powder or dirt may be attached on the surface of the exposure drum.

  • Page 76: Horizontal Lines

    Downward fogging of solid color User Check - Toner may be empty. Replace the toner cartridge with a new one. Step Cause Check Remedy Result Transfer HVPS Is the problem solved after Replace the transfer PCB failure replacing the transfer HVPS PCB ASSY.

  • Page 77: Color Misregistration

    Color misregistration User Check - Implement the auto color registration by the panel operation. - Replace the belt unit with a new one. - Replace the drum unit with a new one. - Replace the waste toner box with a new one. Step Cause Check...

  • Page 78: Hollow Print

    Unstable color density User Check - Replace the belt unit with a new one. - Replace the drum unit with a new one. - Replace the waste toner box with a new one. - Replace the toner cartridge with a new one. Step Cause Check...
  • Page 79 Dirt on the bottom end of paper Step Cause Check Remedy Result Dirt on the bottom Is the bottom of drum unit Wipe the dirt with a dry of drum unit dirty? cloth as shown in Fig. 1-10. Dirt on base shaft Is the base shaft dirty? Wipe the dirt with a dry cloth as shown in Fig.
  • Page 80 White vertical lines appear on image User Check - Replace the toner cartridge or drum unit with a new one. Step Cause Check Remedy Result Dirt on fuser unit Is the heat roller of the Clean the heat roller of the fuser unit dirty? fuser unit.

  • Page 81: Software Setting Problems

    09”.) Machine For Macintosh, has the Verify the product ID. connection product ID been verified? Product ID: DCP-9045CDN: 01CB* MFC-9840CDW: 01CC* * Hexadecimal USB host relay Is the problem solved Replace the USB host PCB failure after replacing the USB relay PCB ASSY.

  • Page 82: Network Problems

    NETWORK PROBLEMS User Check - Check the descriptions in the network user’s guide. - Try resetting the factory settings. Step Cause Check Remedy Result Wireless LAN Is the problem solved Replace the wireless PCB failure after replacing the LAN PCB ASSY. wireless LAN PCB ASSY? Main PCB failure...

  • Page 83: Troubleshooting Of The Communications Errors

    TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS If a communications error occurs, the facsimile equipment (1) Gives the alarm (intermittent bleep) for approximately four seconds. (2) Indicates the appropriate error message on the LCD. (3) Prints the transmission report during fax transmission. Definition of error codes on the communications list (1) Calling Code 1...
  • Page 84 (3) Communication code compatibility [checking the NSF and DIS] Code 2 Causes Remote terminal only with V.29 capability in 2400 or 4800 bps transmission. Remote terminal not ready for polling. Remote terminal not equipped with password function or its password switch OFF. Remote terminal not equipped with or not ready for confidential mailbox function.
  • Page 85 (6) ID checking Code 1 Code 2 Causes Password plus “lower 4 digits of telephone number” not coincident. Password not correct. Polling ID not correct. (7) DCN reception Code 1 Code 2 Causes DCN received. (8) TCF transmission/reception Code 1 Code 2 Causes Fallback impossible.
  • Page 86 (10) Video signal reception Code 1 Code 2 Causes Error correction sequence not terminated even at the final transmission speed for fallback. Receive buffer empty. (5-second time-out) Receive buffer full during operation except receiving into memory. Decoding error continued on 500 lines or more. Decoding error continued for 10 seconds or more.

  • Page 87: Troubleshooting Of The Control Panel

    TROUBLESHOOTING OF THE CONTROL PANEL Nothing is displayed on the LCD. User Check - Verify if the power switch is turned off. - Pull out the power supply cord from the power outlet and leave it for 5 minutes or more. Then, insert it to the power outlet again and turn on the power supply.

  • Page 88: Printing From Macintosh Applications Fails

    The control panel does not work. Step Possible cause Check Remedy Result Key sticking Is there a key on the Clean up the panel cover, control panel stuck? or remove the burrs from panel cover and panel keys. Connection Are the main PCB and Reconnect the connector between main control panel PCB...

  • Page 89: Troubleshooting Of Fax Functions

    TROUBLESHOOTING OF FAX FUNCTIONS FAX can't send it. User Check - Verify that the telephone cord is securely inserted. Step Possible cause Check Remedy Result Dialing mode Does a dialing signal (PB Check the dialing mode Setting or DP) come out normally setting at customer's in each mode? again.
  • Page 90 Speed dialing and One-touch dialing can't be used. Step Possible cause Check Remedy Result Speed dialing Can a fax transmission Replace the main PCB keys or one-touch be made using the ASSY. dialing keys numeric keys? Dialing mode Does a dialing signal (PB Check the dialing mode Setting or DP) come out normally...

  • Page 91: No Bell Ring

    No bell ring. Step Possible cause Check Remedy Result Ring delay Change the ring delay Ring delay is set to “0”. settings to another value. Ring volume Ring volume is set to Change the ring volume “OFF”. setting to another value. Connection Are the main PCB and Reconnect the connector...
  • Page 92 Speaker is silent during on-hook dialing. Step Possible cause Check Remedy Result Connection Are the main PCB and Reconnect the connector between main speaker connected properly. PCB and speaker properly? Speaker Is the problem solved Replace the Speaker. after replacing the speaker? Connection Are the main PCB and...

  • Page 93: Others Problems

    OTHERS PROBLEMS The machine is not turned on, or the LCD indication does not appear. User Check - Pull out the power supply cord from the power outlet and leave it for 5 minutes or more. Then, insert it to the power outlet again and turn on the power supply. Step Cause Check...

  • Page 94: Pickup Function Of Paper Tray Does Not Work

    Pickup function of paper tray does not work. Step Cause Remedy Link lever not operating Make sure correct movemet of the link lever. smoothly or catching. Pickup roller holder ASSY not Make sure correct movement of the pickup roller operating smoothly or holder ASSY.

  • Page 95: Chapter 2 Periodical Maintenance

    CHAPTER 2 PERIODICAL MAINTENANCE To avoid creating secondary problems by mishandling, follow the warnings below during maintenance work. WARNING - Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the machine. - When opening the front cover or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.
  • Page 96 Life of Drum Unit <How to read the drum unit life> - It initially indicates 100% and gradually decreases. - It indicates 0% when the “Drum End Soon” appears on the LCD. - It stays at 0% even if further printing is done. <How to calculate the drum unit life>...
  • Page 97 Life of Belt Unit The belt unit life is decided according to the page counter based on the actual “number of belt rotations”. <How to calculate the page counter> The page counter based on the number of belt rotations is calculated as follows: Page counter based on the number of belt rotations = (Number of belt rotations for the first page printed + (Number of belt rotations per one page for the second or later page printed x (Number of pages in continuous printing –1))) / 1.25...

  • Page 98: Periodical Replacement Parts

    PERIODICAL REPLACEMENT PARTS Periodical Replacement Parts Periodical replacement parts are the parts to be replaced periodically to maintain product quality. These parts would affect the product quality if they loose their functionality even if they do not appear to be damaged or there is no change in their appearance. The periodical replacement parts listed in the table below should be replaced according to the service life.

  • Page 99: Procedures To Replace Periodical Replacement Parts

    Procedures to Replace Periodical Replacement Parts 2.2.1 Fuser Unit & Toner Filter Frame ASSY <Uninstalling Procedure> (1) Open the Back cover. <Back side> Back cover Fig. 2-1 (2) Remove the two pan B M4x14 Taptite screws, and then pull out the Fuser unit to the back of the machine.

  • Page 100: Installing Procedure

    (3) Remove the Toner filter frame ASSY from the Paper eject ASSY DX. Paper eject ASSY DX Toner filter frame ASSY Fig. 2-3 <Installing Procedure> (1) Assemble the Toner filter frame ASSY onto the Paper eject ASSY DX. Paper eject ASSY DX Toner filter frame ASSY Fig.
  • Page 101 (2) Put the Fuser unit into the machine and fix it with the two pan B M4x14 Taptite screws. Tightening Note: When tightening the screw, slowly turn it counterclockwise (in the direction to loosen the screw) with your hand until you feel that the screw is a little dropped in the hole. Then, slightly turn it clockwise (in the direction to tighten the screw) with your hand and tighten it according to the specified torque with a screwdriver.
  • Page 102 (3) Close the Back cover. <Back side> Back cover Fig. 2-7 (4) After replacing the Fuser unit, reset the counter. (Refer to “2.3 Parts Life Reset Function” in this chapter.) Confidential...

  • Page 103: Laser Unit

    2.2.2 Laser Unit <Uninstalling Procedure> (1) Press the Front cover release button, and open the Front door unit ASSY. Front cover release button Front door unit ASSY Fig. 2-8 (2) Open the Back cover. <Back side> Back cover Fig. 2-9 Confidential...
  • Page 104 (3) Remove the two cup S M3x8 Taptite screws, and then remove the Back cover upper. Note: Be careful not to break the plastic. As this can be difficult to remove. Back cover upper Taptite, cup S M3x8 <Back side> Fig.
  • Page 105 (5) Remove the one cup S M3x8 Taptite screw and three cup B M4x12 Taptite screws. (6) Release the three Hooks on the bottom and the two Hooks on the back side, and then remove the Side cover L ASSY. Note: When removing the Side cover L ASSY, pay attention to the Wire support rope.
  • Page 106 (8) Remove the two cup B M4x12 Taptite screws and two cup S M4x8 Taptite screws. (9) Release the one Hook on the front side, two Hooks on the bottom and the two Hooks on the back side, and then remove the Side cover R ASSY. Note: When removing the Side cover R ASSY, be careful not to damage section “A”.
  • Page 107 (11) Remove the cup S M3x6 Taptite screw, and then remove the FG harness ADF from the Driver PCB shield. (12) Remove the cup S M3x6 Taptite screw, and then remove the FG harness FB from the Driver PCB shield. Document scanner unit ASSY Driver PCB shield FG harness ADF...
  • Page 108 (14) Open the Document scanner unit ASSY, and then release the Hooks of the Pull arms L and R from the joint of the Document scanner unit ASSY. Document scanner unit ASSY Hook Pull arm R Pull arm L Hook Joint cover ASSY Fig.
  • Page 109 (16) Disconnect the four Connectors (CN2, CN3, CN7, CN10) from the Main PCB ASSY. (CN2, CN7: MFC-9840CDW only) (17) Remove the Screw pan (S/P washer) M3.5x6, and then remove the FG harness NCU. (MFC-9840CDW only) Screw pan (S/P washer) M3.5x6 FG harness NCU Develop gear plate ASSY CN10...
  • Page 110 (19) Remove the one cup S M3x8 Taptite screw and two bind B M4x12 Taptite screws from the back side of the Joint cover ASSY. Joint cover ASSY Taptite, bind B M4X12 Taptite, cup S M3x8 Taptite, bind B M4X12 <Back side>...
  • Page 111 (22) Remove the four cup S M3x8 Taptite screws, and then remove the two Hook slopes. Hook slope Taptite, cup S M3x8 Hook slope <Front> Taptite, cup S M3x8 Frame unit Fig. 2-24 (23) Remove the nine cup S M3x6 Taptite screws (8 pieces from the top and 1 piece from the front), and then remove the Scanner cover.
  • Page 112 (24) Disconnect the two flat cables (CN1, CN4) and connector (CN8) from the Laser unit. Note: After disconnecting the Flat cable(s), check that each cable is not damaged at its end or short-circuited. Laser unit <Front> Fig. 2-26 (25) Remove the seven cup S M3x6 SR Taptite screws, and then remove the four Scanner holders and Laser unit.
  • Page 113 <Installing Procedure> (1) Assemble the Laser unit with the four Scanner holders and seven cup S M3x6 SR Taptite screws. Note: When assembling the Laser unit with the Scanner holders, ensure to put the positioning boss of the Laser unit into the positioning hole referring to the figure below. Scanner holder Taptite, cup S M3x6 SR Laser unit...
  • Page 114 (3) Assemble the Scanner cover with the nine cup S M3x6 Taptite screws (8 pieces on the top and 1 piece on the front side). Note: When assembling the Scanner cover, secure the Screws in the order of the numbers which are indicated on the Scanner cover.
  • Page 115 (5) Catch the four Hooks and one Pin. Then, put the Joint cover ASSY onto the Frame unit and secure the six cup S M4x8 Taptite screws onto the top of the cover. Hook Taptite, cup S M4x8 Taptite, cup S M4x8 Joint cover ASSY Hook Frame unit...
  • Page 116 (7) Secure the two cup S M3x8 Taptite screws onto the front side of the Joint cover ASSY. (8) Secure the two cup S M3x8 Taptite screws onto the left side of the Joint cover ASSY. Joint cover ASSY Taptite, cup S M3x8 <Left side>...
  • Page 117 (11) Catch the Hinges on the Document scanner unit ASSY onto the Joint cover ASSY putting the Flat cable of the Document scanner unit ASSY into the hole on the Joint cover ASSY. (12) Secure the Hinges with the two bind B M4x12 Taptite screws. Document scanner unit ASSY Hinge Taptite, bind B M4x12...
  • Page 118 (14) Assemble the FG harness FB with the one cup S M3x6 Taptite screw. (15) Assemble the FG harness ADF with the one cup S M3x6 Taptite screw. Document scanner unit ASSY Driver PCB shield FG harness ADF Taptite, cup S M3x6 Taptite, cup S M3x6 FG harness FB <Left side>...
  • Page 119 (17) Put the Flat cable through the Core, and then connect the three Connectors (CN14, CN16, CN21) and one Flat cable (CN17) into the Main PCB ASSY. Note: When connecting the Flat cable(s), do not insert it at an angle. After insertion, check that the cable is not at an angle.
  • Page 120 (19) Assemble the Side plate LB with the three cup S M3x6 Taptite screws, one cup B M4x12 Taptite screw and one cup S M4x8 Taptite screw. Taptite, cup S M4x8 Side plate LB Taptite, cup B M4x12 (Tightening torque: 1.20 ±0.1 N m) Taptite, cup S M3x6 <Left side>...
  • Page 121 (21) Catch the Hooks of the Back cover ASSY and assemble it with the two cup S M3x8 Taptite screws. Hook Taptite, cup S M3x8 Back cover ASSY Hook Taptite, cup S M3x8 <Back side> Fig. 2-44 (22) Assemble the Back cover upper with the two cup S M3x8 Taptite screws. Note: Be careful not to break the plastic.
  • Page 122 (23) Close the Back cover. < Back side> Back cover Fig. 2-46 (24) Close the Front door unit ASSY. Front door unit ASSY Fig. 2-47 (25) After replacing the Laser unit, reset the counter. (Refer to “2.3 Parts Life Reset Function” in this chapter.) 2-28 Confidential...

  • Page 123: Paper Feeding Kit (Pf Kit1, Pf Kit2)

    2.2.3 Paper Feeding Kit (PF Kit 1, PF Kit 2) <Uninstalling Procedure> (1) Pull out the Paper tray, and remove the paper from the Paper tray. Paper tray Fig. 2-48 (2) Release the two Hooks of the Separation pad ASSY, and then lift up the Separation pad ASSY.
  • Page 124 (3) Push both sides of the Separation pad ASSY inwards to release the Pins and remove the Separation pad ASSY from the Paper tray. (4) Remove the Separation pad spring from the Paper tray. Separation pad ASSY <Front> Paper tray Separation pad spring Fig.
  • Page 125 (7) Slide the Roller holder ASSY to the direction of the arrows 7a, 7b and 7c in this order and remove it. <Upper side> <Front> Paper feed frame unit Roller holder ASSY Fig. 2-52 <Installing Procedure> (1) Assemble the Roller holder ASSY onto the Paper feed frame unit in the order of the arrow 1a, 1b and 1c.
  • Page 126 (2) Turn the Roller holder ASSY to the direction of the arrow 2a, push the Lift arm to the direction of the arrow 2b and fix the Boss of the Roller holder ASSY into the hole of the Lift arm. Note: Check whether the Lift arm moves by pushing the Roller holder ASSY upwards.
  • Page 127 (5) Push both sides of the Separation pad ASSY inwards and put its Pins into the Paper tray. Note: Check that the Separation pad ASSY pivots up and down smoothly by pushing it gently. <Front> Separation pad ASSY Paper tray Fig.

  • Page 128: Mp Paper Feeding Kit (Pf Kit Mp)

    2.2.4 MP Paper Feeding Kit (PF Kit MP) <Uninstalling Procedure> (1) Press the Front cover release button, and open the Front door unit ASSY. (2) Release the two Hooks to remove the MP feed frame cover from the Front door unit ASSY.
  • Page 129 (4) Lift up the Hook and release it in the direction of arrow 4a. Slide the Holder bush MP in the direction of arrow 4b, and then remove the Holder bush MP from the shaft of the MP roller holder ASSY. MP roller holder ASSY Holder bush MP Front door unit ASSY...
  • Page 130 (6) Remove the Separation pad ASSY MP from the Front door unit ASSY. (7) Remove the Separation pad spring MP. Note: Be careful not to loose the Separation pad spring MP. Separation pad spring MP Front door unit ASSY <Front> Separation pad ASSY MP Fig.
  • Page 131 (3) Put the Holder shaft into the hole while holding the Separation pad ASSY MP. Slide the MP roller holder ASSY to the direction of the arrow 3b to re-assemble it. MP roller holder ASSY Separation pad ASSY MP Hole Holder shaft <Front>...
  • Page 132 (5) Assemble the MP lift arm 2 with aligning it with the three Bosses provided on the Front door unit ASSY. Note: When assembling the MP lift arm 2, make sure that the shaft of the MP roller holder ASSY is put into the hole on the MP lift arm 2.

  • Page 133: Parts Life Reset Function

    Parts Life Reset Function This function is provided for service personnel in order to reset the counter of each periodical replacement part and count the number of replacement times when replacing the periodical replacement parts. <Operating Procedure> (1) Press the 3 and 9 buttons at the same time in the ready status.

  • Page 134: Chapter 3 Disassembly And Assembly

    CHAPTER 3 DISASSEMBLY AND ASSEMBLY SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. HOT SURFACE Some parts inside the machine are extremely hot immediately after the machine is used. When opening the front cover or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.

  • Page 135: Packing

    PACKING Accessory bag Quick setup guide Panel Option carton Carton cord box Option pad R Option pad L Toner cartridge C, M, Y, K Panel Pad R Middle pad Middle pad Pad L Middle pad Machine Carton pad Carton spacer (US only) Carton pad Pad base Carton pad...

  • Page 136: Screw Torque List

    SCREW TORQUE LIST Tightening Note: When tightening any of the screws shaded in the table below, slowly turn it counterclockwise (in the direction to loosen the screw) with your hand until you feel that the screw is a little dropped in the hole. Then, slightly turn it clockwise (in the direction to tighten the screw) with your hand and tighten it according to the specified torque with a screwdriver.
  • Page 137 Tightening torque Location of screw Screw type Q'ty N m (kgf • cm) 0.70 ±0.1 (7 ±1) ADF front cover 1 Taptite, cup S M3x8 SR Taptite, cup B M3x10 0.50 ±0.1 (5 ±1) 0.50 ±0.1 (5 ±1) ADF back cover Taptite, cup B M3x10 0.70 ±0.1 (7 ±1) FG harness ADF...
  • Page 138 Tightening torque Location of screw Screw type Q'ty N m (kgf • cm) 0.80 ±0.1 (8 ±1) Joint cover FR Taptite, bind B M4x12 0.80 ±0.1 (8 ±1) Joint cover FL Taptite, bind B M4x12 0.50 ±0.1 (5 ±1) Top cover USB front ASSY Taptite, bind B M3x8 0.50 ±0.1 (5 ±1) USB holder...
  • Page 139 Tightening torque Location of screw Screw type Q'ty N m (kgf • cm) 1.20 ±0.1 (12 ±1) Drive frame unit ASSY Taptite, bind B M4x12 0.60 ±0.1 (6 ±1) Paper feed/belt cleaner motor ASSY Taptite, cup S M3x6 0.60 ±0.1 (6 ±1) Develop release sensor PCB ASSY Taptite, cup B M3x8 0.8 ±0.1 (8 ±1)

  • Page 140: Lubrication

    LUBRICATION 4 places Separation roller shaft ASSY BDX1 PG2: PG-661(W) (2mm dia. ball) GE2: GE-676 (2mm dia. ball) BDX1: BDX-313 (1mm dia. ball) Develop drive motor ASSY Motor shaft Develop gear plate ASSY 3 places BG2: BG-MU (2mm dia. ball) Confidential...
  • Page 141 4 places Gear 85 4 places (2 places x2) Gear 54 4 places Motor frame ASSY DX Arm SB 2 places 2 places Arm SB Motor frame ASSY DX Arm PF 2 places 2 places PG2: PG-661(W) (2mm dia. ball) Confidential...
  • Page 142 Pinch roller shaft 2 places 2 places Pinch roller shaft 2 places SB chute ASSY Pinch roller shaft 2 places PG2: PG-661(W) (2mm dia. ball) Paper feed/belt cleaner motor Gear 90R/24 Gear 80R/30 Gear 80R/30 3 places Gear 90R/24 3 places BG2: BG-MU (2mm dia.
  • Page 143 Gear stopper Gear 39/121 Gear 39/121 4 places (1 place x4) Gear 39/121 28 places (7 places x4) Gear 39/121 Drum drive ASSY BG2: BG-MU (2mm dia. ball) MP paper guide ASSY * Cross section of the MP paper guide ASSY 6 places (3 place x2) PG2: PG-661(W) (2mm dia.
  • Page 144 60 places (4 place x15) Gear 46/55 Gear 24 LT A spring is hung, installation part 2 places Clutch gear 45 Gear 45/40 Gear 32 LT In case of 2mm dia. ball x4 Gear 37/22 Gear 46 LT Gear 46/55 Gear 33 Gear 20A PG2: PG-661(W) (2mm dia.
  • Page 145 F roller shaft LT F roller shaft LT 2 places LT frame R BG2: BG-MS (2mm dia. ball) F roller shaft LT F roller shaft LT 2 places LT frame L GE2: GE-676 (2mm dia. ball) 3-12 Confidential...
  • Page 146 Paper feed drive shaft LT ASSY 4 places 4 places Bush AC LT LT frame L GE2: GE-676 (2mm dia. ball) PG2: PG-661(W) (2mm dia. ball) In case of 2mm dia. ball x2 Clutch gear 45 Clutch gear 45 2 places Clutch arm Fittings shaft PG2: PG-661(W) (2mm dia.
  • Page 147 Extension guide R In case of 2mm dia. ball x4 Extension guide L LT paper tray EM2: MOLYKOTE EM-D110 (2mm dia. ball) Side guide R Side guide R LT paper tray PG2: PG-661(W) (2mm dia. ball) 3-14 Confidential...

  • Page 148: Overview Of Gears

    OVERVIEW OF GEARS DEVELOPER DRIVE <Development view> Develop drive motor ASSY <Layout view> <Name of Gears> Gear 35 LR0194001 Gear 98 10 LR0199001 LR0202001 Gear 100 11 LR0203001 Coupling gear 50 Gear 50/100 LR0201001 12 LR0203001 Coupling gear 50 Pendulum gear 50 Gear 45 LR0197001 13 LR0200001...
  • Page 149 PAPER EJECT (1/2) <Development view> <Left side> Paper eject ASSY DX <Name of Gears> <Layout view> 18 LR0482001 Eject roller gear 19 LJ7365001 Idle gear 16B 20 LJ7365001 Idle gear 16B 21 LM5016001 Ejector gear 16 22 LR0480001 Ejector gear 16/20 23 LR0482001 Eject roller gear 24 LR1181001...
  • Page 150 PAPER EJECT (2/2) <Development view> <Left side> Paper eject ASSY DX <Layout view> <Name of Gears> 27 LJ7365001 Idle gear 16B 28 LR0479001 Ejector gear 15/20 29 LM5016001 Ejector gear 16 30 LM5018001 Ejector gear 16 planetary 31 LM5019001 Ejector gear 22 32 LJ7365001 Idle gear 16B 33 LR0979001...
  • Page 151 PF DRIVE <Development view> <Front> Frame unit 3-18 Confidential...
  • Page 152 <Layout view> Location of PF drive gears <Name of Gears> LR0316001 Gear Z35M75 LR0311001 PF drive gear Z23M75 LR0315001 Gear Z3218M0875 LR0326001 PU drive gear Z20M08 LR0314001 Gear Z3717M08 LR0320001 PU sector gear Z4648M08 LR0324001 Torque spring for PU sector Location of parts after removing the parts shown as 37 to 43 in the figure above <Name of Gears>...

  • Page 153: Harness Routing

    HARNESS ROUTING Transfer HVPS PCB unit (Registration-mark sensor PCB ASSY 1, 2, Density sensor) Density sensor Registration-mark sensor PCB ASSY 2 Registration-mark sensor PCB ASSY 1 Registration relay PCB ASSY Ground plate 2 Transfer HVPS PCB unit USB host relay PCB ASSY Joint cover ASSY Clamps Fan motor holder 40...
  • Page 154 T1 PE/edge sensor PCB ASSY, Belt cleaner release sensor PCB ASSY <A view> Engine PCB ASSY Belt cleaner release Belt cleaner release solenoid ASSY sensor PCB ASSY Side frame L Front Clamp Hook Hole Belt cleaner release ASSY Clamp SOL PCB sheet Belt cleaner release solenoid ASSY Belt cleaner release...

  • Page 155: Develop Release Sensor Pcb Assy

    Develop release sensor PCB ASSY Hook Hook Side frame L Develop release sensor PCB ASSY Develop gear plate ASSY Clamp Clamps Engine PCB ASSY Front Toner sensor PCB ASSY K, Y, M, C (TE/NEW) Toner sensor PCB Hook Hooks ASSY M (TE/NEW) Toner sensor PCB Toner sensor PCB ASSY Y (TE/NEW)
  • Page 156 Laser unit Laser unit Front Hole Hole Develop gear plate ASSY Develop gear plate ASSY Side frame L Main PCB ASSY Laser unit Hole Hole Clamp Clamp Develop press drive L ASSY Clamp Hooks Release drive holder Front Engine PCB ASSY Side frame L 3-23 Confidential...

  • Page 157: Develop Press Drive L Assy

    Develop press drive L ASSY (Develop release motor ASSY, Front cover interlock switch ASSY) Front cover interlock Develop release motor ASSY switch ASSY Interlock harness guide Side frame L Holes Clamps Develop press drive L ASSY Release drive holder Front cover interlock switch ASSY Interlock harness guide Front...

  • Page 158: Ps Pcb Unit

    PS PCB unit Back Front Power Inlet socket Harness holder 16AWG Ground terminal Hooks Screw pan (S/P washer) M4x8 Frame R Power supply switch Power Inlet socket PS PCB unit NCU unit (MFC-9840CDW only) NCU unit FG harness NCU Joint cover ASSY Hook Hook Hole...
  • Page 159 Paper feed/belt cleaner motor ASSY Front Hook Hook Drive frame unit ASSY Engine PCB plate Side frame L Paper feed/ belt cleaner motor ASSY Drum drive ASSY Hook Engine PCB ASSY Hook Hook Hook 3-26 Confidential...

  • Page 160: Adf Unit

    ADF unit <A view> ADF motor harness ADF relay harness FG harness ADF ADF relay ADF motor PCB ASSY Document cover sensor harness Hook Document cover sensor Hook Hole ADF unit <A view> Hole ADF harness Hole Document scanner unit Hook Hook ADF motor harness...
  • Page 161 ADF unit (Document front sensor 1, Document front sensor 2) <A view> Motor frame ASSY DX Hook Hole Hooks Document front sensor 2 Document front sensor 1 ADF relay PCB ASSY Hole Document front sensor 1 <A view> Hole Motor frame ASSY DX ADF relay PCB ASSY Drive frame sub ASSY Document front sensor 2...
  • Page 162 ADF unit (Document rear sensor, Switch back sensor) Switch back sensor Switch back sensor <A view> Document rear sensor Switch back sensor harness Actuator SB ADF relay PCB ASSY Hooks <A view> Hook Switch back Actuator R Document rear Hooks sensor harness sensor harness Document rear sensor...
  • Page 163 Document scanner unit (CCD unit, HP sensor) Document CCD unit scanner unit Drive plate ASSY Hook Hole HP sensor Hooks HP sensor HP sensor harness Hooks Driver PCB ASSY HP sensor harness Main PCB ASSY Front FFC cable Harness holder Document scanner unit (Scanner motor, FG harness FB) Front Scanner motor...

  • Page 164: Panel Unit

    Panel unit Panel unit Document scanner unit Hole Panel PCB ASSY Front Panel harness Hook Harness holder Hook Hook Main PCB ASSY Speaker ASSY Hook Clamp Speaker ASSY Clamp Hooks Front Main PCB ASSY 3-31 Confidential...
  • Page 165 Wireless LAN PCB ASSY (MFC-9840CDW only) Hook Wireless LAN PCB ASSY Front Hole Hook Hook Hook Joint cover ASSY Hook Hole Hole Front Joint cover ASSY Wireless LAN PCB harness Main PCB ASSY 3-32 Confidential...
  • Page 166 Preparation Prior to proceeding with the disassembly procedure, (1) Unplug - the AC cord, - the modular jack of the telephone line, - the USB cable, if connected, - the LAN cable, if connected, - the USB cable for PictBridge, if connected, and - the modular jack of the external telephone set if connected.

  • Page 167: Disassembly Flow

    DISASSEMBLY FLOW Disassembly / Re-Assembly (sec.) Basic Operation 5s / 5s 20s / 20s 10s / 10s 25s / 25s 5s / 5s 5s / 5s AC cord Toner cartridge Drum unit Paper tray Belt unit Waste toner box 8.16 8.26 20s / 20s 15s / 15s 20s / 20s 20s / 25s 25s / 25s 10s / 10s DX Feed ASSY MP cover ASSY/ MP lift arm 2/ Fuser unit/ Paper stopper Roller holder ASSY MP paper guide ASSY MP roller holder ASSY Toner filter frame ASSY  8.20 30s / 45s Panel unit 10s / 10s 8.12 10s / 10s 10s / 10s 30s / 30s Paper guide/ - Earth plate (15s/15s)

  • Page 168: Disassembly Procedure

    DISASSEMBLY PROCEDURE Paper Tray (1) Release the two Hooks of the Separation pad ASSY, and then lift up the Separation pad ASSY. Note: Be careful not to loose the Separation pad spring. Hook Separation pad ASSY <Front> Hook Paper tray Separation pad spring Fig.
  • Page 169 (4) Remove the two bind B M4x12 Taptite screws, and then remove the Tray cover ASSY. Taptite, bind B M4x12 <Top of paper tray> Tray cover ASSY Fig. 3-3 (5) Turn the paper tray upside down. (6) Release the two Hooks to remove the Paper guide DX ASSY. <Bottom of tray>...

  • Page 170: Dx Feed Assy

    DX Feed ASSY (1) Release the three Hooks to remove the DX hook ASSY. (2) Release the two Bosses to remove the DX feed ASSY. * Release the boss on the right hand side first. DX feed ASSY Boss Boss Hooks DX hook ASSY DX feed ASSY...
  • Page 171 (2) Release the two Bosses of the MP paper guide ASSY. <Front> Boss MP paper guide ASSY MP cover ASSY Boss Fig. 3-7 (3) Lift up the MP paper guide ASSY align the MP paper guide ASSY with section “A” of the MP lower chute.
  • Page 172 (4) Release the Bosses while bending the MP cover ASSY and remove the MP cover ASSY from the Front door main. Front door main MP cover ASSY Boss Front door main Boss <Front> Boss MP cover ASSY Boss Fig. 3-9 Assembling Note: When assembling the MP paper guide ASSY, note the assembling method referring to the figure below.

  • Page 173: Mp Lift Arm 2/ Mp Roller Holder Assy

    MP Lift Arm 2/ MP Roller Holder ASSY (1) Press the Front cover release button, and open the Front door unit ASSY. (2) Release the two Hooks to remove the MP feed frame cover from the Front door unit ASSY. Hooks MP feed frame cover Front door unit ASSY...
  • Page 174 (4) Release the Hook to slide the Holder bush MP in the direction of arrow 4a, and then remove the Holder bush MP from the shaft of the MP roller holder ASSY. MP roller holder ASSY Holder bush MP Front door unit ASSY <Front>...
  • Page 175 (6) Remove the Separation pad ASSY MP from the Front door unit ASSY. (7) Remove the Separation pad spring MP. Note: Be careful not to loose the Separation pad spring MP. Separation pad spring MP Front door unit ASSY <Front> Separation pad ASSY MP Fig.

  • Page 176: Fuser Unit/ Toner Filter Frame Assy

    8.5 Fuser Unit/ Toner Filter Frame ASSY (1) Turn each of the two Cord holders at the angle of 90 degrees and remove them from the Back cover upper and Side cover R ASSY. Back cover upper Cord holder Side cover R ASSY Cord holder <Back side>...
  • Page 177 (3) Remove the two pan B M4x14 Taptite screws, and then pull out the Fuser unit to the back of the machine. <Back side> Taptite, pan B M4x14 (Tightening torque: 1.20 ±0.1 N m) Fuser unit Taptite, pan B M4x14 (Tightening torque: 1.20 ±0.1 N m) Fig.

  • Page 178: Back Cover Upper

    (4) Remove the Toner filter frame ASSY from the Paper eject ASSY DX. Paper eject ASSY DX Toner filter frame ASSY Fig. 3-20 8.6 Back Cover Upper (1) Remove the two cup S M3x8 Taptite screws, and then remove the Back cover upper. Note: Be careful not to break the plastic.

  • Page 179: Paper Eject Assy Dx

    8.7 Paper Eject ASSY DX (1) Remove the bind B M3x10 Taptite screw, and then remove the Drive shaft holder. <Back side> Drive shaft holder Paper eject ASSY DX Taptite, bind B M3x10 Fig. 3-22 (2) Release the Hook to remove the Fuser drive gear 18 from the shaft. Paper eject ASSY DX <Back side>...
  • Page 180 (3) Remove the two cup B M4x12 Taptite screws and cup S M3x6 Taptite screw. (4) Disconnect the Connector. (5) Remove the Paper eject ASSY DX. Taptite, cup S M3x6 Connector Taptite, cup B M4x12 (Tightening torque: 1.20 ±0.1 N m) Paper eject ASSY DX <Back side>...

  • Page 181: Back Cover Assy

    Assembling Note: (1) Put the Drive shaft holder into the Shaft of the Frame unit. (2) Align the Hook and Pin of the Drive shaft holder with the hole on the Paper eject ASSY DX while inclining the Drive shaft holder 10 degrees downwards. (3) Move the Drive shaft holder to the direction of the arrow 3 to align it with the screw hole of the Paper eject ASSY DX, and secure the Drive shaft holder with the bind B M3x10 Taptite screw.

  • Page 182: Paper Guide/ Hv Tr Top Cover

    8.9 Paper Guide/ HV TR Top Cover (1) Release the two Bosses, and then remove the Paper guide from the Transfer HVPS PCB unit while lifting it up slightly. Note: When removing the Paper guide, be careful not to damage the two Ribs. Transfer HVPS PCB unit Boss Hook...

  • Page 183: Transfer Hvps Pcb Unit

    8.10 Transfer HVPS PCB Unit (1) Disconnect the four Connectors from the Electrode head. Transfer HVPS PCB unit Electrode head Connector <Back side> Fig. 3-30 (2) Disconnect the flat cable (CN1) and two connectors (CN5, CN8) from the Registration relay PCB unit.

  • Page 184: Registration-Mark Sensor Pcb Assy 1, 2/ Density Sensor/ Registration Relay Pcb Assy/ Transfer Hvps Pcb Assy

    (3) Remove the two cup S M3x6 Taptite screws, and then remove the Transfer HVPS PCB unit. <Back side> Transfer HVPS PCB unit Taptite, cup S M3x6 Taptite, cup S M3x6 Fig. 3-32 8.11 Registration-mark Sensor PCB ASSY 1, 2/ Density Sensor/ Registration Relay PCB ASSY/ Transfer HVPS PCB ASSY (1) Remove the bind B M3x8 Taptite screw, and then remove the Earth plate 3.
  • Page 185 (2) Remove the two bind B M3x8 Taptite screws, and then remove the Density shield plate 1. Taptite, bind B M3x8 Density shield plate 1 Transfer HVPS PCB unit Fig. 3-34 (3) Remove the cup S M3x6 Taptite screw, and then remove the Earth plate 2. Taptite, cup S M3x6 Earth plate 2 Transfer HVPS PCB unit...
  • Page 186 (4) Disconnect the Connector (CN3) of the Registration-mark sensor PCB ASSY 1. (5) Remove the bind B M3x8 Taptite screw, and then remove the Registration-mark sensor PCB ASSY 1 from the Density sensor holder. Taptite, bind B M3x8 Registration-mark sensor PCB ASSY 1 Connector Density sensor holder CN3 (Blue)
  • Page 187 (8) Disconnect the Connector (CN7), and remove the two bind B M3x8 Taptite screws, and then remove the Density sensor. Note: Do not touch the Variable resistor on the back of the Density sensor. Variable resistor Density sensor Taptite, bind B M3x8 Connector Registration relay PCB ASSY Transfer HVPS PCB unit...
  • Page 188 (10) Turn the Transfer HVPS PCB ASSY upside down. Remove the bind B M3x8 Taptite screw from the Registration relay PCB ASSY. (11) Remove the Registration relay PCB ASSY from the Transfer HVPS PCB unit. Taptite, bind B M3x8 <Bottom> Transfer HVPS PCB unit Registration relay PCB ASSY Fig.
  • Page 189 Assembling Note: When assembling the Registration relay PCB ASSY, put the section “A” of the Registration relay PCB ASSY into the section “B” of the Transfer HVPS PCB unit. “B” “A” Transfer HVPS PCB unit <Bottom> Registration relay PCB ASSY Fig.

  • Page 190: Side Cover L Assy

    8.12 Side Cover L ASSY (1) Remove the cup S M3x8 Taptite screw and three cup B M4x12 Taptite screws. (2) Release the three Hooks on the bottom and the two hooks on the back side, and then remove the Side cover L ASSY. Note: When removing the Side cover L ASSY, pay attention to the Wire support rope.

  • Page 191: Side Plate Lb

    8.13 Side Plate LB (1) Remove the three cup S M3x6 Taptite screws, cup B M4x12 Taptite screw and cup S M4x8 Taptite screw, and then remove the Side plate LB. Taptite, cup S M4x8 Side plate LB Taptite, cup B M4x12 (Tightening torque: 1.20 ±0.1 N m) Taptite, cup S M3x6...

  • Page 192: Drum Unit Fan (Opc)

    8.14 Drum Unit Fan (OPC) (1) Disconnect the Connector from the Engine PCB ASSY, and then remove the Drum unit fan (OPC). Drum unit fan (OPC) Label Connector Engine PCB ASSY <Left side> Fig. 3-46 Assembling Note: When assembling the Drum unit fan (OPC), place it so that the attached Label faces outwards. 3-59 Confidential...

  • Page 193: Side Cover R Assy

    8.15 Side Cover R ASSY (1) Remove the two cup B M4x12 Taptite screws and two cup S M4x8 Taptite screws. (2) Release the one Hook on the front side, two Hooks on the bottom and the two Hooks on the back side, and then remove the Side cover R ASSY.

  • Page 194: Paper Stopper

    8.16 Paper stopper (1) Open the Document scanner unit ASSY. (2) Open the Paper stopper and release the Pins on both sides. Document scanner unit ASSY Paper stopper Joint cover ASSY Paper stopper Fig. 3-48 (3) Turn the Paper stopper in the direction of arrow 3a and remove it from the Joint cover ASSY.

  • Page 195: Driver Pcb Assy

    8.17 Driver PCB ASSY (1) Disconnect the three Connectors (CN1, CN2, CN4) from the Driver PCB ASSY. (2) Release the Lock and disconnect the Connector (CN3) from the Driver PCB ASSY. Driver PCB ASSY Document scanner unit ASSY Lock <Left side> Main PCB ASSY Fig.
  • Page 196 (6) Remove the two cup S M3x6 Taptite screws, and then remove the Driver PCB ASSY from the Driver PCB shield. Driver PCB shield Groove Groove Driver PCB ASSY Taptite, cup S M3x6 Driver PCB ASSY Fig. 3-52 3-63 Confidential...

  • Page 197: Pull Arm L, R/ Hinge Protection Cover Assy

    8.18 Pull arm L, R/ Hinge Protection Cover ASSY (1) Disconnect the three Connectors (CN14, CN16, CN21) from the Main PCB ASSY. (2) Disconnect the Flat cable (CN17) from the Main PCB ASSY, and then pull out the Flat cable from the Core. Note: - After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.
  • Page 198 (4) Open the Document scanner unit ASSY, and then release the Hooks of the Pull arms L and R from the joint of the Document scanner unit ASSY. Document scanner unit ASSY Hook Pull arm R Pull arm L Hook Joint cover ASSY Fig.
  • Page 199 (6) Remove the two bind B M4x12 Taptite screws, and then remove the Document scanner unit ASSY from the Joint cover ASSY by lifting upwards. Document scanner unit ASSY Hinge Taptite, bind B M4X12 Taptite, bind B M4X12 Joint cover ASSY Hinge <Back side>...
  • Page 200 (8) Remove the two bind B M4x12 Taptite screws, and then remove the ADF unit from the Document scanner unit. ADF unit Document scanner unit Taptite, bind B M4x12 Taptite, bind B M4x12 Fig. 3-59 3-67 Confidential...

  • Page 201: Adf Unit

    8.19 ADF Unit (1) Turn the ADF unit upside down. (2) Remove the Hinge arm R from the Hinge base R. Hinge arm R <Bottom> ADF unit Hinge base R Fig. 3-60 (3) Remove the three cup B M3x10 Taptite screws, and then remove Hinge base R. Taptite, cup B M3x10 Hinge base R <Bottom>...
  • Page 202 (4) Remove the three cup B M3x10 Taptite screws, and then remove the Hinge ASSY L. Taptite, cup B M3x10 Hinge ASSY L <Bottom> ADF unit Fig. 3-62 (5) Place the ADF unit the correct way up, and then remove the ADF cover ASSY from the ADF unit.
  • Page 203 (6) Remove the cup S M3x8 SR Taptite screw and cup B M3x10 Taptite screw from the ADF front cover 1. (7) Release the Hook from the bottom of the ADF unit and remove the ADF front cover 1 from the ADF unit.
  • Page 204 (9) Remove the cup B M3x10 Taptite screw from the ADF back cover. (10) Release the Hook A and Hook B from the bottom of the ADF unit and remove the ADF back cover. ADF back cover Latch Taptite, cup B M3x10 ADF unit Hook Hook B...
  • Page 205 (11) Disconnect the seven Connectors (CN1~CN7) from the ADF relay PCB ASSY. (12) Disconnect the Connector of the ADF motor harness from the ADF motor. (13) Remove the cup S M3x8 SR Taptite screw, and then remove the FG harness ADF. Connector ADF motor Taptite, cup S M3x8 SR...
  • Page 206 (14) Remove the four cup B M3x10 Taptite screws, and then remove the ADF chute ASSY from the Document cover sub ASSY. Taptite, cup B M3x10 Taptite, cup B M3x10 ADF chute ASSY Taptite, cup B M3x10 Taptite, cup B M3x10 Document cover sub ASSY Fig.
  • Page 207 (16) Turn the ADF chute ASSY upside down. (17) Remove the four cup B M3x10 Taptite screws, and then remove the Exit chute cover ASSY from the ADF chute ASSY. Taptite, cup B M3x10 Taptite, cup B M3x10 Exit chute cover ASSY ADF chute ASSY <Bottom>...
  • Page 208 (18) Turn the Exit chute cover ASSY upside down. (19) Remove the Earth spring from the Exit chute cover ASSY. Earth spring Exit chute cover ASSY Antistatic brush Fig. 3-71 Assembling Note: When assembling the Earth spring, ensure that the end of the Earth spring is attached onto the Antistatic brush as shown in the figure below.
  • Page 209 (20) Place the ADF chute ASSY the correct way up. (21) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (22) Remove the Bush from the ADF chute ASSY, and remove the PF roller holder ASSY from the ADF chute ASSY.
  • Page 210 (23) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (24) Remove the Bush from the ADF chute ASSY, and remove the LF roller 1 ASSY from the ADF chute ASSY. Bush LF roller 1 ASSY Conductive bush A ADF chute ASSY Hooks...
  • Page 211 (25) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (26) Remove the Bush from the ADF chute ASSY, and remove the SB roller ASSY from the ADF chute ASSY. Bush SB roller ASSY Conductive bush A ADF chute ASSY Hooks Fig.
  • Page 212 Assembling Note: - When assembling each of the SB roller ASSY, LF roller 2/3/4 ASSYs and Exit roller ASSY, make sure to assemble it onto the correct position. Identify each roller by the color or three shades of the rollers. * Gray (Identify the rollers by the shades.) LF roller 3 ASSY LF roller 2 ASSY...
  • Page 213 (28) Remove the three cup S M3x8 SR Taptite screws, and then remove the Motor frame ASSY DX. Motor frame ASSY DX Taptite, cup S M3x8 SR A view < A view > Screws Screw Fig. 3-80 Assembling Note: When assembling the Motor frame ASSY DX, ensure that the gears (indicated with gray) are placed in the positions as shown in the figure below.
  • Page 214 (29) Remove the cup S M3x8 SR Taptite screw, and then remove the S/B solenoid ASSY. Motor frame ASSY DX Taptite, cup S M3x8 SR S/B solenoid ASSY Fig. 3-82 (30) Remove the cup S M3x8 SR Taptite screw, and then Remove the PF solenoid ASSY. Motor frame ASSY DX Taptite, cup S M3x8 SR PF solenoid ASSY...
  • Page 215 (31) Remove the cup S M3x8 SR Taptite screw, and then remove the ADF relay PCB ASSY. Taptite, cup S M3x8 SR ADF relay PCB ASSY Motor frame ASSY DX Fig. 3-84 (32) Remove the two cup S M3x8 SR Taptite screws, and then remove the Paper feed plate. Taptite, cup S M3x8 SR Paper feed plate Taptite, cup S M3x8 SR...
  • Page 216 (33) Remove the two cup S M3x8 SR Taptite screws, and then remove the Paper feed chute ASSY. Taptite, cup S M3x8 SR Paper feed chute ASSY Taptite, cup S M3x8 SR ADF chute ASSY Fig. 3-86 (34) Turn the Paper feed chute ASSY upside down. (35) Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Paper feed chute ASSY.
  • Page 217 (37) Push down the Stopper, slide the Actuator front 1 to the stopper side and pull up the Actuator front 1 to remove. Actuator front 1 Paper feed chute ASSY Stopper <Bottom> Fig. 3-88 (38) Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Paper feed chute ASSY.
  • Page 218 (40) Push down the Stopper, slide the Actuator front 2 to the stopper side and pull up the Actuator front 2 to remove. Paper feed chute ASSY Actuator front 2 Stopper <Bottom> Fig. 3-90 3-85 Confidential...
  • Page 219 (41) Remove the ADF film. (42) Remove the B M3x6 Taptite screw, and then remove the Spring plate ADF front ASSY. (43) Remove the back sheet ADF. (44) Remove the Separation rubber. (45) Release the two Hooks and then remove the Rubber holder. (46) Remove the Separation spring.
  • Page 220 (47) Push the Hook to the direction of the arrow 47a as shown in the figure below while holding the Presser roller, and remove the Presser roller shaft from the Hook. (48) Pull the Presser roller shaft out of the Presser roller. (49) Remove the two LF springs.
  • Page 221 (50) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (51) Remove the Bush from the ADF chute ASSY, and remove the LF roller 2 ASSY from the ADF chute ASSY. Bush LF roller 2 ASSY Hooks ADF chute ASSY Conductive bush A...
  • Page 222 (52) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (53) Remove the Bush from the ADF chute ASSY, and remove the Exit roller ASSY from the ADF chute ASSY. Bush Exit roller ASSY Conductive bush A ADF chute ASSY Hooks Fig.
  • Page 223 (54) Turn the ADF chute ASSY upside down. (55) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (56) Remove the Bush from the ADF chute ASSY, and remove the LF roller 3 ASSY from the ADF chute ASSY.
  • Page 224 (57) Remove the four LF4 films from the ADF chute ASSY. LF4 films LF4 films LF4 films LF4 films <Bottom> ADF chute ASSY Fig. 3-99 Assembling Note: When attaching the LF4 films, make sure the positions referring to the figure below. ADF chute ASSY LF4 films LF4 films...
  • Page 225 (58) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (59) Remove the Bush from the ADF chute ASSY, and remove the LF roller 4 ASSY from the ADF chute ASSY. Bush LF roller 4 ASSY Conductive bush A ADF chute ASSY <Bottom>...
  • Page 226 (60) Release the Hooks of the Conductive bush A to remove the Conductive bush A. (61) Release the Hooks of the Gear ASSY to remove the Gear ASSY. (62) Remove the Flap A ASSY from the ADF chute ASSY. Flap A ASSY Hook Gear ASSY Hooks...
  • Page 227 (64) Remove the Document hold spring gently to prevent it from jumping. Document hold spring Hook ADF chute ASSY Hooks <Bottom> Fig. 3-105 Assembling Note: When assembling the Document hold spring, make sure the assembled position referring to the figure below. ADF chute ASSY Document hold spring * Top view of the bottom of the...
  • Page 228 (65) Place the ADF chute ASSY the correct way up. (66) Remove the three cup B M3x10 Taptite screws, and then remove the Drive frame sub ASSY. Drive frame sub ASSY Taptite, cup B M3x10 ADF chute ASSY Fig. 3-107 (67) Remove the three cup B M3x10 Taptite screws, and then remove the Front frame.
  • Page 229 (68) Remove the four cup B M3x10 Taptite screws, and then remove the Upper main chute ASSY from the Lower main chute ASSY. Taptite, cup B M3x10 Taptite, cup B M3x10 Upper main chute ASSY Lower main chute ASSY Fig. 3-109 (69) Turn the Actuator R to the direction of the arrow 69a and pull it out to the direction of the arrow 69b.
  • Page 230 (70) Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Lower main chute ASSY. (71) Disconnect the Connector from the Photo interrupter. Connector Hook Hook Photo interrupter Lower main chute ASSY Fig. 3-111 (72) Remove the Flap B from the Lower main chute ASSY. Flap B Lower main chute ASSY Fig.
  • Page 231 (73) Push down the Stopper, slide the Actuator SB to the stopper side and pull up the Actuator SB to remove. Actuator SB Lower main chute ASSY Stopper Fig. 3-113 (74) Release the Hooks of the Photo interrupter to remove the Photo interrupter from the Lower main chute ASSY.
  • Page 232 (76) Remove the ADF document output support flap from the Document cover sub ASSY. ADF document output support flap Document cover sub ASSY Fig. 3-115 (77) Release the four Hooks and two bosses to remove the Dressing cover ADF 1. Hooks Hooks Dressing cover ADF 1...
  • Page 233 (78) Turn the Document cover sub ASSY upside down. (79) Remove the cup B M3x10 Taptite screw from the Dressing cover ADF 2. (80) Release the three Hooks to remove the Dressing cover ADF 2. Taptite, cup B M3x10 Hooks Hook Dressing cover ADF 2 Document cover sub ASSY...
  • Page 234 (84) Disconnect the Connector from the Document cover sensor. (85) Pull the Document cover sensor downwards to remove it from the Document cover sub ASSY while pressing the Hooks of the Document cover sensor. Hook Document cover sensor Connector Hook Document cover sub ASSY Boss Document cover sub ASSY...

  • Page 235: Panel Unit

    8.20 Panel Unit (1) Release the eight Hooks to remove the Printed panel cover from the Document scanner unit. Hooks Document scanner unit Hooks Printed panel cover Hooks Hooks Fig. 3-121 (2) Remove the Address label from the Printed panel cover. Address label Printed panel cover Fig.
  • Page 236 (3) Remove the four cup B M3x10 Taptite screws, and then lift up the Panel unit slightly from the Document scanner unit. Taptite, cup B M3x10 Panel unit Taptite, cup B M3x10 Document scanner unit Fig. 3-123 (4) Gently lift up the Panel unit slightly and disconnect the Connector (CN1) from the Panel unit.
  • Page 237 (5) Turn the Panel unit upside down, and then disconnect the Connector (CN4) from the Panel PCB ASSY. (6) Release the Lock and disconnect the Flat cable (CN3) from the Panel PCB ASSY. Note: - After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.
  • Page 238 (8) Remove the Rubber key (R, C, L) from the Panel unit. Rubber key L Rubber key C Hooks Rubber key R Panel unit Hooks Hook Hooks Hooks Hooks Fig. 3-127 (9) Remove the Panel insulation sheets. (10) Release the two Hook A to remove the LCD cover and LCD ASSY from the Panel cover. Note: Be careful not to loose the LED guide.
  • Page 239 (11) Remove the LCD from the Backlight module. Backlight module Fig. 3-129 3-106 Confidential...

  • Page 240: Document Scanner Unit

    8.21 Document Scanner Unit (1) Remove the three cup B M4x12 Taptite screws. (2) Release the three Bosses in the order of 2a to 2b to remove the Dressing cover FB FL from the Document scanner unit. Taptite, cup B M4x12 Document scanner unit Dressing cover FB FL Taptite, cup B M4x12...
  • Page 241 (5) Remove the two cup B M4x12 Taptite screws. Taptite, cup B M4x12 Document scanner unit Dressing cover FB top <Left side> Fig. 3-132 (6) Lift up the sections “A” and “B” of the Dressing cover FB top. (7) Slide the Dressing cover FB top in the direction of the arrow to release the Hook and remove it.
  • Page 242 Note: Be sure not to open the Scanner top cover ASSY in a dusty place. (8) Remove the six cup B M4x12 Taptite screws, and then remove the Scanner top cover ASSY from the Scanner base ASSY. Taptite, cup B M4x12 Taptite, cup B M4x12 Scanner top cover ASSY Taptite, cup B M4x12...
  • Page 243 (10) Slightly lift up the CCD unit and Guide shaft and pull the Guide shaft out of the CCD unit. CCD unit Guide shaft Scanner base ASSY Fig. 3-136 Assembling Note: When assembling the CCD unit, ensure to put the front side of the CCD drive belt into the slit “A”...
  • Page 244 (11) Remove the double-faced adhesive tape which is attached between the FFC cable ASSY and CCD unit, and disconnect the FFC cable ASSY from the CCD unit. Note: - After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited.
  • Page 245 (13) Remove the cup B M3x8 Taptite screw. (14) Release the two Hooks from the bottom of the Scanner base ASSY and remove the FFC plate. Taptite, cup B M3x8 FFC plate * Top view of the bottom of the Scanner base ASSY Hooks Hook...
  • Page 246 (17) Remove the cup S M3x6 Taptite screw, and then remove the FG harness FB. (18) Remove the four pan B M3x8 Taptite screws, and then remove the Drive plate ASSY. Taptite, cup S M3x6 Taptite, pan B M3x8 FG harness FB Taptite, pan B M3x8 Drive plate ASSY Scanner base ASSY...
  • Page 247 (20) Remove the two B M3x6 Taptite screws, and then remove the Pulley ASSY. (21) Remove the Pulley spring. Taptite, pan B M3x6 Pulley spring Pulley ASSY Fig. 3-144 (22) Release the Hooks to remove the Photo interrupter. (23) Disconnect the Connector from the Photo interrupter. Photo interrupter Hooks Hook...
  • Page 248 (24) Remove the cup B M3x8 Taptite screw from the Scanner base ASSY. Scanner base ASSY Taptite, cup B M3x8 Dressing cover FB base L Fig. 3-146 (25) Turn the Scanner base ASSY upside down. (26) Remove the two cup B M4x12 Taptite screws, and then remove the Dressing cover FB base L from the Scanner base ASSY.
  • Page 249 (27) Remove the three cup B M4x12 Taptite screws from the Dressing cover FB base R. (28) Remove the Dressing cover FB base R from the Scanner base ASSY. Taptite, cup B M4x12 Dressing cover FB base R Scanner base ASSY <Bottom>...

  • Page 250: Ncu Pcb Assy (Mfc-9840Cdw Only)

    8.22 NCU PCB ASSY (MFC-9840CDW only) (1) Disconnect the connector (CN7) from the Main PCB ASSY. (2) Remove the Screw pan (S/P washer) M3.5x6 and then remove the FG harness NCU. Joint cover ASSY Screw pan (S/P washer) M3.5x6 FG harness NCU <Left side>...
  • Page 251 (4) Remove the Screw pan (S/P washer) M3.5x6, and then remove the FG harness NCU. (5) Remove the two bind B M4x12 Taptite screws, and then remove the NCU unit from the Joint covers ASSY. Taptite, bind B M4x12 Taptite, bind B M4x12 NCU unit Screw pan (S/P washer) M3.5x6 Joint covers ASSY...
  • Page 252 (7) Remove the two cup S M3x6 Taptite screws, and then remove the NCU PCB ASSY. (8) Disconnect the connector of the NCU harness ASSY. Taptite, cup S M3x6 NCU PCB ASSY NCU harness ASSY NCU shield cover Fig. 3-153 3-119 Confidential...

  • Page 253: Battery Assy

    8.23 Battery ASSY (1) Release the Hook to remove the Battery ASSY from the Joint cover ASSY. (2) Disconnect the connector from the Battery ASSY. Caution: - There is danger of explosion if the battery is incorrectly replaced. - Do not disassemble or recharge the battery. - Do not dispose of the battery in fire.

  • Page 254: Joint Cover Assy

    8.24 Joint Cover ASSY (1) Remove the bind B M4x12 Taptite screw, and then remove the Pull arm guide L from the Joint cover ASSY. (2) Remove the bind B M4x12 Taptite screw, and then remove the Pull arm guide R from the Joint cover ASSY.
  • Page 255 (4) Remove the two cup S M3x8 Taptite screws from the front side of the Joint cover ASSY, and remove two cup S M3x8 Taptite screws from the left side. Joint cover ASSY Taptite, cup S M3x8 <Left side> Taptite, cup S M3x8 <Front>...
  • Page 256 (6) Remove the six cup S M4x8 Taptite screws from the top of the Joint cover ASSY, and then release the four Hooks and one Pin to remove the Joint cover ASSY from the Frame unit. Hook Taptite, cup S M4x8 Taptite, cup S M4x8 Hook Joint cover ASSY...
  • Page 257 (9) Remove the two bind B M4x12 Taptite screws. (10) Release the two Hooks and one boss to remove the Joint cover FL from the Joint cover ASSY. Taptite, bind B M4x12 Joint cover ASSY <Bottom> Hook Hook Hook Joint cover FL Boss Fig.
  • Page 258 (12) Remove the three bind B M3x8 Taptite screws, and then remove the USB holder and USB host relay PCB ASSY. Taptite, bind B M3x8 Taptite, bind B M3x8 USB holder USB host relay PCB ASSY <Bottom> Joint cover FL Fig.
  • Page 259 (14) Remove the two bind B M4x12 Taptite screws, and then remove the Wireless LAN PCB ASSY from the Joint cover ASSY. (MFC-9840CDW only) (15) Disconnect the connector from the Wireless LAN PCB ASSY. (MFC-9840CDW only) Connector Taptite, bind B M4x12 Wireless LAN PCB ASSY Joint cover ASSY <Bottom>...

  • Page 260: Speaker Assy

    (17) Release the Hooks to remove the Paper stopper guide from the Paper chute. Hook Paper stopper guide Hook Paper chute Hook <Bottom> Fig. 3-167 8.25 Speaker ASSY (1) Disconnect the connector (CN10) from the Main PCB ASSY. Speaker ASSY CN10 Main PCB ASSY <Left side>...
  • Page 261 (2) Remove the cup S M3x6 Taptite screw, and then remove the Speaker holder. Taptite, cup S M3x6 Speaker holder Bosses Scanner cover <Left side> Fig. 3-169 (3) Remove the cup S M3x6 Taptite screw, and then remove the Speaker hold spring. (4) Remove the Speaker ASSY from the Speaker holder.

  • Page 262: Roller Holder Assy

    8.26 Roller Holder ASSY (1) Push the Lift arm to the direction of the arrow 1a and release the boss of the Roller holder ASSY. Then, turn the Roller holder ASSY to the direction of the arrow 1b. Paper feed frame unit Lift arm Roller holder ASSY Boss...

  • Page 263: Paper Feed Frame Unit/ T1 Pe/Edge Sensor Pcb Assy

    8.27 Paper Feed Frame Unit/ T1 PE/Edge Sensor PCB ASSY (1) Disconnect the three connectors (CN1, CN10, CN11) from Engine PCB ASSY. Engine PCB ASSY CN10 CN11 Fig. 3-173 (2) Close the Front door unit ASSY. Remove the cup S M3x6 Taptite screw and two bind B M3x10 Taptite screws.
  • Page 264 (4) Release the two Hooks to remove the PF CR harness holder. Hook Hook PF CR harness holder <Front> Fig. 3-175 (5) Remove the Harness from the PF CR harness holder. Harness PF CR harness holder Fig. 3-176 3-131 Confidential...
  • Page 265 (6) Remove the five bind B M3x8 Taptite screws, and then remove the PF plate from the Paper feed frame. Taptite, bind B M3X8 Taptite, bind B M3X8 Taptite, bind B M3X8 PF plate Paper feed frame Fig. 3-177 (7) Release the Hook of the Separation roller bush to remove it. Then, remove the Separation roller drive shaft.
  • Page 266 (8) Remove the Edge actuator and PE actuator, and remove the Edge actuator spring. Edge actuator Edge actuator spring PE actuator Paper feed frame <Upper side> Fig. 3-179 (9) Release the three Hooks to remove the T1 PE/edge sensor PCB ASSY. T1 PE/edge sensor PCB ASSY Hook Hook...
  • Page 267 Assembling Note: When assembling the Paper feed frame unit, make sure to follow the procedure described below. (1) Put the belt cleaner release sensor harness and belt cleaner release solenoid harness through the hole on the paper feed frame. (2) Put the two harnesses above and T1 PE/edge sensor harness through the PF CR harness holder and put them out of the hole on the Side frame L.
  • Page 268 (4) Assemble the Lift arm, Feed roller shaft TR and Separation roller drive shaft of the Paper feed frame unit following the procedure described below. <Assembling the Lift arm> Implement the operations below while holding the status described in Step (3). 1) When pushing up the Roller holder ASSY with your hand, the end (section “A”) of the Lift arm goes down.
  • Page 269 <Assembling the Feed roller shaft TR> While moving the Paper feed frame unit to the left hand side, turn the Gear to align the section “C” with the Feed roller shaft TR and put the shaft into the section “C”. Gear Paper feed frame unit <Left side>...
  • Page 270 (5) Check the engagement of each roller and move the Paper feed frame unit to the left hand side of the main body until it stops to assemble it. <Left side> Side frame L Paper feed frame unit <Front> Fig. 3-186 (6) Make sure that there is no looseness of the harness.

  • Page 271: Belt Cleaner Release Sensor Pcb Assy

    8.28 Belt Cleaner Release Sensor PCB ASSY (1) Release the two Hooks to remove the Belt cleaner release ASSY from the Middle plate. Middle plate <Front> Hook Hook Belt cleaner release ASSY Fig. 3-188 (2) Turn the Belt cleaner release ASSY upside down. Remove the bind B M3x8 Taptite screw, and then remove the SOL PCB sheet and Belt cleaner release sensor PCB ASSY.

  • Page 272: Thm/Hum Sensor Holder Assy

    (3) Disconnect the Connector from the Belt cleaner release sensor PCB ASSY. Connector Belt cleaner release sensor PCB ASSY Fig. 3-190 8.29 THM/HUM Sensor Holder ASSY (1) Disconnect the Connector (CN35) from the Engine PCB ASSY. Engine PCB ASSY CN35 Fig.
  • Page 273 (2) Remove the one cup S M3x6 Taptite screw, and then remove the THM/HUM ground plate. (3) Remove the four cup S M3x6 Taptite screws. (4) Release the two Hooks to remove the THM/HUM sensor holder ASSY. Frame unit Hook THM/HUM sensor holder ASSY Taptite, cup S M3x6...

  • Page 274: Release Rack

    8.30 Release Rack (1) Remove the Release rack spring from the Hook. Frame unit Hook Release rack spring <Left side> Fig. 3-193 (2) Remove the cup B M3x8 Taptite screw, and then remove the Release rack plate from the Release rack. (3) Remove the Release rack spring from the Release rack plate.

  • Page 275: Front Door Unit Assy

    8.31 Front Door Unit ASSY (1) Remove the cup S M3x6 Taptite screw, and then remove the Front door unit earth. Frame unit Taptite, cup S M3x6 Front door unit earth <Left side> Front door unit ASSY Fig. 3-195 (2) Disconnect the six connectors (CN2, CN3, CN4, CN7, CN8, CN9) from the Engine PCB ASSY.
  • Page 276 (3) Remove the Shoulder screw fixing the Wire support rope, and then release the Wire support rope from the Shaft. Shaft Wire support rope Shoulder screw Frame unit Front door unit ASSY <Right side> Fig. 3-197 (4) Remove the Collar 3 from the Hinge shaft L, and then remove the Hinge shaft L from the Hinge plate L.
  • Page 277 (5) Remove the Collar 3 from the Hinge shaft R, and then remove the Hinge shaft R from the Hinge plate R. (6) Remove the Front door unit ASSY from Frame unit. Frame unit Front door unit ASSY Collar 3 Hinge plate R Hinge shaft R <Front>...

  • Page 278: Harness Cover Mp

    Assembling Note: - When assembling the Front door unit ASSY onto the Hinge on the main body, make sure to align the Front door unit ASSY with the Hinge as shown in the figure below. Frame unit Hinge Front door unit ASSY <Front>...

  • Page 279: Front Door Sub

    8.33 Front Door Sub (1) Remove the five cup B M4x10 Taptite screws and one cup B M3x8 Taptite screw, and then remove the Front door sub. Taptite, cup B M4x10 Taptite, cup B M4x10 Front door unit ASSY Taptite, cup B M4x10 Taptite, cup B M3x8 <Left side>...

  • Page 280: El Electrode Spring L/R

    8.34 EL Electrode Spring L/R (1) Remove the two bind B M3x8 Taptite screws, and then remove the EL electrode spring cover ASSY. EL electrode spring cover ASSY Taptite, bind B M3X8 Front door unit ASSY Fig. 3-204 (2) Remove the two bind B M3x8 Taptite screws, and then remove the EL spring harness ASSY (white, red) and EL electrode spring L/R.

  • Page 281: Hook Cover/ Front Cover Release Button/ Button Spring/ Front Door Main

    8.35 Hook Cover/ Front Cover Release Button/ Button Spring/ Front Door Main (1) Remove the two cup B M4x10 Taptite screws. Taptite, cup B M4x10 Taptite, cup B M4x10 Front door unit ASSY Front door main Fig. 3-206 (2) Remove the two cup B M4x10 Taptite screws. (3) Release the three Hooks to remove the Hook cover from the Front door unit ASSY.
  • Page 282 (4) Remove the Front cover release button and Button spring from the Hook cover. Front cover release button Front cover release button Button spring Button spring <Left side> Hooked Hooked Hook cover <Right side> Fig. 3-208 (5) Release the two Hooks to remove the Front door Main from the Front door unit ASSY. Front door unit ASSY Front door main Hooks...

  • Page 283: Hook Shaft/ Hook/ Hook Spring

    8.36 Hook Shaft/ Hook/ Hook Spring Remove the Hook shaft. Hook shaft MP unit ASSY <Left side> Fig. 3-210 (2) Remove the Hook and Hook spring L from the MP unit ASSY. (3) Remove the Hook and Hook spring R from the MP unit ASSY in the same way. Hook Hook spring L <Left side>...

  • Page 284: Engine Pcb Assy

    8.37 Engine PCB ASSY (1) Disconnect all the connectors from the Engine PCB ASSY. Note: - After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited. - When connecting the flat cable(s), do not insert it at an angle. After insertion, check that the cable is not at an angle.

  • Page 285: Main Pcb Assy/ Ground Plate/ Ground Spring Plate

    8.38 Main PCB ASSY/ Ground Plate/ Ground Spring Plate (1) Remove the cup S M3x6 Taptite screw and bind B M4x12 Taptite screw, and then remove the Ground plate. (2) Remove the two cup S M3x6 Taptite screws, and then remove the Ground spring plate. Ground spring plate Taptite, cup S M3x6 Frame unit...
  • Page 286 (4) Remove the cup S M3x6 Taptite screw, and then remove the Main PCB ASSY as shown by arrows 4a and 4b. Main PCB ASSY Frame unit Taptite, cup S M3x6 <Left side> Fig. 3-216 3-153 Confidential...

  • Page 287: Waste Toner Near/Full Sensor Assy

    8.39 Waste Toner Near/Full Sensor ASSY (1) Move the Positioning pin 1a as shown, and slide the Hooks to the direction of the arrow 1b, and then remove the Waste toner sensor holder from the Middle plate. Waste toner sensor holder Middle plate <Left side>...
  • Page 288 (3) Release the three Hooks of each Waste toner sensor to remove the two Waste toner sensors from the Waste toner sensor holder. Waste toner sensor <A view> Hook Waste toner sensor holder Hook “A” Hooks Hook Waste toner sensor Hooks Waste toner sensor Fig.

  • Page 289: Laser Unit/ Hook Slope

    8.40 Laser Unit/ Hook Slope (1) Remove the four cup S M3x8 Taptite screws, and then remove the two Hook slopes. Hook slope Taptite, cup S M3x8 Hook slope <Front> Taptite, cup S M3x8 Frame unit Fig. 3-221 (2) Remove the nine cup S M3x6 Taptite screws (8 pieces from the top and 1 piece from the Front), and then remove the Scanner cover.
  • Page 290 (3) Disconnect the two flat cables (CN1, CN4) and connector (CN8) from the Laser unit. Note: - After disconnecting the flat cable(s), check that each cable is not damaged at its end or short-circuited. - When connecting the flat cable(s), do not insert it at an angle. After insertion, check that the cable is not at an angle.

  • Page 291: Develop Drive Motor Assy

    8.41 Develop Drive Motor ASSY (1) Remove the Rack gear 27 from the Frame unit. Frame unit Rack gear 27 <Left side> Fig. 3-225 (2) Remove the Alum sheet frame from the Develop gear plate ASSY. (3) Remove the seven cup S M3x6 Taptite screws, and then remove the Develop gear plate ASSY from the Frame unit.
  • Page 292 (4) Remove the three cup S M3x6 Taptite screws, and then remove the Develop drive motor ASSY from the Develop gear plate ASSY. Taptite, cup S M3x6 Taptite, cup S M3x6 Develop drive motor ASSY Taptite, cup S M3x6 Develop gear plate ASSY Fig.
  • Page 293 (6) Remove the Friction cap from the Develop gear plate ASSY. Friction cap Develop gear plate ASSY Fig. 3-229 Assembling Note: - When assembling the Develop gear plate ASSY onto the Frame unit, secure the screws in the order of the numbers which are indicated on the plate. Develop gear plate ASSY Fig.
  • Page 294 Assembling Note: - When assembling the Develop gear plate ASSY, make sure to keep the Harness and Flat cable out of the Frame unit to prevent them from going into the Develop gear plate ASSY. Frame unit Flat cable Harness Develop gear plate ASSY Fig.
  • Page 295 Assembling Note: - Always make sure to attach the Alum sheet frame after assembling the Develop gear plate ASSY and Flat cable. Attach the Alum sheet frame so that it is aligned with the corner of the square hole as shown in the figure below. Alum sheet frame Alum sheet frame Flat cable...

  • Page 296: Drum Drive Assy/ Drum Phase Sensor Pcb Assy 1, 2

    8.42 Drum Drive ASSY/ Drum Phase Sensor PCB ASSY 1, 2 (1) Remove the Engine insulation sheet from the Harness shield plate, which is fixed with a two-sided adhesive tape. Harness shield plate Engine insulation sheet <Left side> Fig. 3-234 (2) Remove the three cup S M3x6 Taptite screws, and then remove the Harness shield plate from the Frame unit.
  • Page 297 (3) Remove the four cup S M3x6 Taptite screws, and then remove the Engine PCB plate. Frame unit Engine PCB plate Taptite, cup S M3x6 <Left side> Taptite, cup S M3x6 Fig. 3-236 Assembling Note: When assembling the Engine PCB plate, make sure that the section “A” is caught on the Hook of the Drive frame unit ASSY.
  • Page 298 (4) Remove the two cup S M3x6 Taptite screws, and then remove the Drum drive motor 1. (5) Remove the two cup S M3x6 Taptite screws, and then remove the Drum drive motor 2. Frame unit Drum drive motor 2 Taptite, cup S M3x6 Drum drive motor 1 Taptite, cup S M3x6...
  • Page 299 (6) Remove the six bind B M4x12 Taptite screws, and then remove the Drum drive ASSY from the Frame unit. Note: Since the four Gears 39/121 of the Drum drive ASSY are assembled together, which makes one set, DO NOT replace only one gear. If their replacement is required, replace the complete Drum drive ASSY.

  • Page 300: Drive Frame Unit Assy

    8.43 Drive Frame Unit ASSY (1) Remove the three bind B M4x12 Taptite screws, and then remove the Drive frame unit ASSY from the Frame unit. (2) Disconnect the Connector from the Drive frame unit ASSY. Frame unit Drive frame unit ASSY Connector Taptite, bind B M4x12 (Tightening torque:...

  • Page 301: Paper Feed/Belt Cleaner Motor Assy

    8.44 Paper Feed/Belt Cleaner Motor ASSY (1) Remove the four cup S M3x6 Taptite screws (2 pieces provided on each of the front and back), and then remove the Paper feed/belt cleaner motor ASSY from the Drive frame unit ASSY. Taptite, cup S M3x6 Paper feed/belt cleaner motor ASSY Drive frame unit ASSY...

  • Page 302: Develop Release Sensor Pcb Assy

    8.45 Develop Release Sensor PCB ASSY (1) Remove the cup B M3x8 Taptite screw. (2) Remove the Develop release sensor PCB ASSY from the Frame unit. Disconnect the Connector from the Develop release sensor PCB ASSY. Frame unit Hook Connector Taptite, cup B M3x8 (Tightening torque: 0.60 ±0.1 N m)
  • Page 303 (2) Remove the three bind B M3x12 Taptite screws and cup B M3x12 Taptite screw, and then remove the Develop press drive L ASSY. Frame unit Taptite, bind B M3X12 (Tightening torque: 0.80 ±0.1 N m) Develop press drive L ASSY Taptite, bind B M3X12 (Tightening torque: 0.80 ±0.1 N m) Taptite, bind B M3X12...
  • Page 304 Assembling Note: - Assemble the Develop press drive L ASSY so that the section of the Pull up lever L, where the spring is hooked is placed as shown in the figure below. Develop press drive L ASSY Pull up lever spring (for L) Pull up lever L Section where the spring is hooked Fig.

  • Page 305: Front Cover Interlock Switch Assy

    8.47 Front Cover Interlock Switch ASSY (1) Remove the Interlock switch holder spring and Interlock harness guide from the Develop press drive L ASSY. Interlock switch holder spring Hook B Hook D Hook B Interlock harness guide Hook C Develop press drive L ASSY Hook A Hook A Hook D...

  • Page 306: Toner Sensor Pcb Assy K, Y, M, C (Te/New)

    8.48 Toner Sensor PCB ASSY K, Y, M, C (TE/NEW) (1) Remove the three cup B M3x10 Taptite screws, and then remove the Release drive holder from the Frame unit. Release drive holder Frame unit Taptite, cup B M3x10 (Tightening torque: 0.70 ±0.1 N m) <Left side >...
  • Page 307 (2) Remove the bind B M3x8 Taptite screw, and then remove the Toner sensor PCB ASSY K (TE/NEW) from the Frame unit. (3) Remove the cup B M3x8 Taptite screw, and then remove the TE protect film 2 and Toner sensor PCB ASSY Y (TE/NEW) from the Frame unit.
  • Page 308 Assembling Note: Assemble the Toner sensor PCB ASSY K, Y, M, C (TE/NEW) as shown in the figure below. For the method to arrange the harnesses, refer to “5. Toner sensor PCB ASSY K, Y, M, C (TE/NEW)”. Toner sensor PCB Toner sensor PCB ASSY Y (TE/NEW) ASSY M (TE/NEW)
  • Page 309 (6) Release the two Hooks of the LED holder to remove it from each of the four Toner sensor PCB ASSYs (TE/NEW). Hook Toner sensor PCB ASSY (TE/NEW) Hook LED holder Fig. 3-256 Assembling Note: Assemble the Toner sensor PCB ASSY (TE/NEW) so that the Shutter of the New toner actuator is put into the sensor section of the Toner sensor PCB ASSY (TE/NEW).

  • Page 310: New Toner Actuator/ New Toner Actuator Spring

    8.49 New Toner Actuator/ New Toner Actuator Spring (1) Release the section “A” of the New toner actuator spring from the Hook of the Frame unit, and then remove the New toner actuator from the Fame unit. “A” Frame unit New toner actuator spring Hook New toner actuator...

  • Page 311: Side Plate R Assy

    8.50 Side Plate R ASSY (1) Remove the four cup S M3x6 Taptite screws, four cup B M4x12 Taptite screws and screw pan (S/P washer) M4x8. (2) Remove the cup S M4x8 Taptite screw and screw pan (S/P washer) M4x8, and then remove the Side plate R ASSY from the Frame unit.

  • Page 312: Drum Lock Lever L

    8.51 Drum Lock Lever L (1) Remove the Screw, bind M3x8, and remove the Drum lock lever plate L ASSY and then remove the Drum lock spring and Drum lock lever L from the Frame unit. Drum lock lever plate L ASSY Frame unit Drum lock spring <Left side >...

  • Page 313: Drum Lock Lever R

    8.52 Drum Lock Lever R (1) Remove the Screw, bind M3x8, and remove the Drum lock lever plate R ASSY and then remove the Drum lock lever R from the Frame unit. Frame unit Screw, bind M3x8 <Front> Drum lock lever R Drum lock lever plate R ASSY Fig.

  • Page 314: Charge Hvps Pcb Assy

    8.53 Charge HVPS PCB ASSY (1) Remove the cup S M3x6 Taptite screw and two bind B M4x12 Taptite screws, and then release the four Hooks to remove the Charge HVPS PCB ASSY from the Frame unit. Hooks Frame unit <Right side>...
  • Page 315 Assembling Note: - Be careful not to loose the HVPS charge head, HVPS charge head spring, HVPS DEV head and HVPS DEV head spring. Before assembling the Charge HVPS PCB ASSY, check that these four parts are complete, and that they move smoothly. HVPS DEV head HVPS charge head HVPS DEV...

  • Page 316: Toner Led Pcb Assy

    8.54 Toner LED PCB ASSY (1) Remove the Screw pan (S/P washer) M3x16, and then remove the Toner LED PCB from the Frame unit. <Right side> Toner LED PCB Frame unit Screw pan (S/P washer) M3x16 Fig. 3-269 (2) Release the two Hooks to remove the LED holder from the Toner LED PCB. (3) Remove the other three Toner LED PCBs in the same way.

  • Page 317: Fuser Unit Fan (Fu)

    8.55 Fuser Unit Fan (FU) (1) Remove the Fuser unit fan (FU) from the Frame unit. Frame unit Fuser unit fan (FU) Label <Right side> Fig. 3-271 Assembling Note: When assembling the Fuser unit fan (FU), place it so that the attached Label faces outwards. 8.56 LVPS Fan (PS) (1) Remove the LVPS fan (PS) from the Frame unit.

  • Page 318: Air Intake Fan (Air)

    8.57 Air Intake Fan (AIR) (1) Remove the Air intake fan (AIR) from the Frame unit. Frame unit Air intake fan (AIR) <Right side> Label Fig. 3-273 Assembling Note: When assembling the Air intake fan (AIR), place it so that the attached Label faces outwards. 3-185 Confidential...

  • Page 319: Ps Pcb Unit

    8.58 PS PCB Unit (1) Remove the LVPS insulation sheet and LVPS V0 insulation sheet from the PS PCB unit. LVPS insulation sheet <Right side> PS PCB unit LVPS V0 insulation sheet Fig. 3-274 (2) Remove the Power supply switch from the Belt gear plate ASSY by pushing the Hooks inwards.
  • Page 320 (3) Remove the Screw pan (S/P washer) M4x8, and then remove the Ground terminal. (4) Remove the two Taptite, flat B M3x10, and then remove the Power inlet socket from the Frame unit. Frame unit <Back side> Taptite, flat B M3x10 (Tightening torque: Power inlet socket 0.60 ±0.1 N m)
  • Page 321 (6) Disconnect the four Connectors (CN2, CN101, CN102, CN103) from the PS PCB unit. PS PCB unit CN103 CN102 CN101 Fig. 3-278 Assembling Note: - Assemble the LVPS insulation sheet so that the section “A” is in the position as shown in the figure below.
  • Page 322 Assembling Note: - Assemble the Power supply switch so that the ON/OFF mark on the Power supply switch is aligned with the ON/OFF mark imprinted on the Belt gear plate ASSY. Power supply switch Belt gear plate ASSY Fig. 3-280 - When assembling the PS PCB unit, align it with the two Bosses on the Frame unit.

  • Page 323: Belt Unit Drive Motor Assy

    8.59 Belt Unit Drive Motor ASSY (1) Release the three Hooks to remove the Harness holder 16AWG from the Belt gear plate ASSY. Belt gear plate ASSY <Right side> Hooks Harness holder 16AWG Hook Fig. 3-282 (2) Remove the three cup B M4x12 Taptite screws and Screw, cup M3x6, and then remove the Belt gear plate ASSY from the Frame unit.
  • Page 324 (3) Remove the bind B M3x10 Taptite screw, and then remove the LV fan duct from the Frame unit. Frame unit <Right side> LV fan duct Taptite, bind B M3X10 (Tightening torque: 0.80 ±0.1 N m) Fig. 3-284 (4) Remove the three cup B M4x12 Taptite screws, and then remove the Belt unit drive motor ASSY from the Frame unit.
  • Page 325 (6) Remove the two Screws bind M3x5, and then remove the Belt unit drive motor from the Motor plate P. Belt unit drive motor Screw bind M3x5 Motor plate P Fig. 3-286 3-192 Confidential...

  • Page 326: Disassembly Procedure (Lt-100Cl)

    DISASSEMBLY PROCEDURE (LT-100CL) 9.1 LT Paper Tray (1) Pull out the LT paper tray, and remove the paper from the LT paper tray. LT paper tray Fig. 3-287 (2) Release the two Hooks of the LT separation pad ASSY, and then lift up the LT separation pad ASSY.
  • Page 327 (3) Push both sides of the LT separation pad ASSY inwards to release the Pins and remove the LT separation pad ASSY from the LT paper tray. LT separation pad ASSY <Front> LT paper tray LT separation pad spring Fig. 3-289 (4) Remove the LT separation pad spring from the LT paper tray.
  • Page 328 (5) Remove the two bind B M4x10 Taptite screws from the Pinch roller holder cover LT. (6) Release the four Hooks to remove the Pinch roller holder cover LT from the LT paper tray. Taptite, bind B M4x10 Hooks Taptite, bind B M4x10 Pinch roller holder cover LT Hook Hook...
  • Page 329 (8) Release the Pin to remove the Pinch roller sub ASSY from the LT paper tray. Pinch roller sub ASSY LT paper tray Pinch roller sub ASSY Fig. 3-293 3-196 Confidential...

  • Page 330: Lt Cover Rear

    9.2 LT Cover Rear (1) Remove the four Shoulder screws from the LT cover rear. Shoulder screw LT cover rear Shoulder screw Shoulder screws Fig. 3-294 (2) Release the two Pins on the bottom to remove the LT cover rear. LT cover rear Fig.

  • Page 331: Lt Cover Left

    9.3 LT Cover Left (1) Remove the three Shoulder screws from the LT cover left. Shoulder screw LT cover left Shoulder screws Fig. 3-296 (2) Release the two Hooks on the upper side and the two Hooks on the Back to remove the LT cover left.

  • Page 332: Lt Cover Right

    9.4 LT Cover Right (1) Remove the three Shoulder screws from the LT cover right. Shoulder screw LT cover right Shoulder screw Shoulder screw Fig. 3-298 (2) Release the two Hooks on the upper side and the two Hooks on the Back to remove the LT cover right.

  • Page 333: Lt Relay Pcb Assy

    9.5 LT Relay PCB ASSY (1) Disconnect the all connectors from the LT relay PCB ASSY. LT relay PCB ASSY Fig. 3-300 (2) Remove the cup S M3x6 Taptite screw, and then remove the LT relay PCB ASSY. Taptite, cup S M3x6 LT relay PCB ASSY Fig.

  • Page 334: Lt Solenoid Assy

    9.6 LT Solenoid ASSY (1) Remove the cup S M3x6 Taptite screw, and then remove the Solenoid holder ASSY. Solenoid holder ASSY Taptite, cup S M3x6 Fig. 3-302 (2) Remove the Screw flanged M3X3.5, and then remove the LT solenoid ASSY and Solenoid spring MP from the LT solenoid holder.

  • Page 335: Collar 6

    9.7 Collar 6 (1) Remove the two Collars 6 from the Fittings shaft. Collar 6 Collar 6 Fittings shaft Fig. 3-304 9.8 Cassette Switch ASSY (1) Remove the three cup S M3x6 Taptite screws and release the Hook. Then, remove the LT tray guide left rear ASSY.
  • Page 336 (2) Release the Hook to remove the Cassette actuator and Cassette actuator spring. Hook Cassette actuator spring LT tray guide left rear ASSY Cassette actuator Fig. 3-306 (3) Release the two Hooks to remove the Cassette switch ASSY. LT tray guide left rear ASSY Cassette switch ASSY Hooks Fig.

  • Page 337: Lt Paper Feed Frame Unit

    9.9 LT Paper Feed Frame Unit (1) Remove the four cup S M3x6 Taptite screws, and then remove the LT front cover and LT beam F from the LT frame unit. LT beam F Taptite, cup S M3x6 Taptite, cup S M3x6 Taptite, cup S M3x6 LT front cover <Front>...
  • Page 338 (3) Remove the Retaining ring E3 from the F roller shaft LT and remove the FR bush TR. F roller shaft LT FR bush TR Retaining ring E3 <Right side> Fig. 3-310 (4) Remove the Lift spring from the Hook of the Lift lever A. (5) Remove the F roller shaft LT from the LT frame unit by pushing right (5a), pull left end forward (5b) and remove leftwards (5c).
  • Page 339 Assembling Note: When assembling the F roller shaft LT, place the Rib of the Paper feed frame unit between the section “A” and “B” of the Lift lever B and align the section “B” with the Lever of the Paper feed holder. “B”...
  • Page 340 (7) Remove the Gear 20A from the Drive unit by releasing the Hook. Drive unit Hook Gear 20A <Left side> Fig. 3-314 (8) Remove the Gear 33 from the Drive unit by releasing the Hook. Drive unit Hook <Left side> Gear 33 Fig.
  • Page 341 (9) Remove the Extension spring LT from the Spring hook and remove the Gear 46/55 from the Drive unit by releasing the Hook. Drive unit Hook Spring hook <Left side> Extension spring LT Gear 46/55 Fig. 3-316 (10) Remove the Gear 46 LT from the Drive unit. Drive unit Gear 46 LT <Left side>...
  • Page 342 (11) Remove the two cup S M3x6 Taptite screws and one bind B M4x10 Taptite screw from the LT frame L unit. LT paper feed frame unit Taptite, cup S M3x6 Taptite, bind B M4x10 LT frame L unit <Left side> Fig.
  • Page 343 (14) Turn the LT frame unit the correct way up. (15) Remove the two cup S M3x6 Taptite screws from the LT beam R. LT beam R Taptite, cup S M3x6 <Back side> Fig. 3-320 (16) Remove the cup S M3x6 Taptite screw from the LT frame unit. LT frame unit <Left side>...
  • Page 344 (17) Remove the LT paper feed frame unit from the LT frame unit by 17a and 17b. LT paper feed frame unit <Front> LT frame unit Fig. 3-322 3-211 Confidential...

  • Page 345: Chapter 4 Adjustments And Updating Of Setting

    (6) The Download Utility (FILEDG32.EXE) Copy it into the folder that has been created in the C drive. (7) The Brother Maintenance USB Printer Driver Copy it into the folder that has been created on the C drive and extract the copied file.
  • Page 346 <Procedures> Rewriting the Firmware (Main Firmware, Sub Firmware (PCL/PS)) - How to rewrite the firmware by using the USB flash memory drive If you save program files in the USB flash memory drive and plug it into the USB direct Interface, you can rewrite the firmware and set the country.
  • Page 347 - Once this installation procedure is carried out for a PC, no more driver/software installation will be required for that PC to identify machines. If the Brother Maintenance USB Printer driver has been already installed to your PC according to this procedure, skip this section.
  • Page 348 (6) The following screen appears, indicating the detection of new hardware device by the system. Select “No, not this time.” And click Next. (7) Select “Install the software automatically (Recommended)” and click Next. Confidential...
  • Page 349 (8) Alert warning message of WHQL appears, Click Continue Anyway to proceed. Confidential...
  • Page 350 (9) If the Brother Maintenance USB Printer driver is successfully installed, the following message screen appears. Click Finish to return. Note: In order to check whether the printer driver is successfully installed, click Start, Settings and Printers and select the Printers window. Then, check that the Brother Maintenance USB Printer icon is shown.
  • Page 351 After the installation procedure of the Brother Maintenance USB Printer driver is completed, refer to the following steps for the detailed procedures to rewrite the program files. If the Brother Maintenance USB Printer Driver has already been installed to your PC according to this procedure, start to rewrite the program files.
  • Page 352 (4) Drag the necessary firmware program file such as LZ1092_A.djf and drop it onto the Brother Maintenance USB Printer icon. “Program Updating” will appear on the LCD. (5) Upon completion of rewriting, the machine is rebooted and returns to the Ready state automatically.
  • Page 353 EEPROM Parameter Initialization of Main PCB (Maintenance Mode: Code 01) Refer to “1.4.1 EEPROM Parameter Initialization” in Chapter 5, and perform the EEPROM parameter Initialization of main PCB. Operational Check of Control Panel Button (Maintenance Mode: Code 13) Refer to “1.4.8 Operational Check of Control Panel Button”...
  • Page 354 (3) Check the port (USB) that the machine is connected through and click “Serial No.” in the lower box. Enter the serial number (the last nine digits) of the machine into the box on the right hand side and click the OK button. A confirmation window opens and shows the serial number.

  • Page 355: If You Replace The Engine Pcb

    IF YOU REPLACE THE ENGINE PCB < What to do when replacing the engine PCB > Rewriting the Firmware (Engine Firmware) Performing the Color Calibration Performing the Auto Registration < Which parts to use > - Engine PCB: The table below shows the ROM type. Flash ROM 0 (512 Kbyte): Engine firmware <...
  • Page 356 (3) When the machine has recognized the USB flash memory drive, the Direct button lights blue. Press the Direct button. (4) “Direct Print” is displayed on the first line of the LCD, and the file names will be shown on the second line of the LCD. Press the button to choose the necessary program file, and press the OK button.
  • Page 357 (4) Drag the necessary firmware program file such as LZ0833_A.djf and drop it onto the Brother Maintenance USB Printer icon. “Program Updating” will appear on the LCD. “Program Updating” will appear on the LCD and the machine emits audible beeps.

  • Page 358: If You Replace The Fb Unit

    IF YOU REPLACE THE FB UNIT < What to do when replacing the FB unit > Acquisition of White Level Data and Set the CCD Scanner Area (Maintenance Mode: Code 55) < Procedures > Acquisition of White Level Data and Set the CCD Scanner Area (Maintenance Mode: Code 55) Refer to “1.4.16 Acquisition of White Level Data and CCD Scanner Area Setting”...

  • Page 359: If You Replace The Transfer Hvps Pcb Unit Or Registration-Mark Sensor Pcb Assy 1, 2

    IF YOU REPLACE THE TRANSFER HVPS PCB UNIT OR REGISTRATION-MARK SENSOR PCB ASSY 1, 2 <What to do when replacing the transfer HVPS PCB unit or registration-mark sensor PCB ASSY 1, 2> Adjustment of Color Registration (Maintenance Mode 66) <Procedures> Adjustment of Color Registration (Maintenance Mode 66) Refer to “1.4.17 Adjustment of Color Registration”...

  • Page 360: If You Replace The Laser Unit

    IF YOU REPLACE THE LASER UNIT <What to do when replacing the laser unit> When an old-type laser unit is replaced with a new laser unit, it is necessary to rewrite the firmware. Make sure to rewrite the firmware with the following procedure. <...

  • Page 361: Chapter 5 Service Functions

    CHAPTER 5 SERVICE FUNCTIONS MAINTENANCE MODE The maintenance mode is exclusively designed for the checking, settings and adjustments of the machine by using the buttons on the control panel. You can customize the EEPROM according to the shipment destination of the machine concerned. In addition, you can perform operational checks of the LCD, control panel PCB and sensors, perform a print test, display the log information and error codes, and modify worker switches (WSW).

  • Page 362: List Of Maintenance-Mode Functions

    List of Maintenance-mode Functions Function Function Refer to: Code EEPROM Parameter Initialization 1.4.1 (5-3) Printout of Scanning Compensation Data 1.4.2 (5-4) Placement of Scanner Unit Position for Transportation 1.4.3 (5-6) ADF Performance Test 1.4.4 (5-6) Test Pattern 1.4.5 (5-7) Worker Switch (WSW) Setting 1.4.6 [1] (5-8) Printout of Worker Switch Data 1.4.6 [2] (5-10)

  • Page 363: Detailed Description Of Maintenance-Mode Functions

    Detailed Description of Maintenance-mode Functions 1.4.1 EEPROM Parameter Initialization (Function code 01, 91) <Function> The machine initializes the parameter, user switches, worker switches and assurance mode switch settings registered in the EEPROM, to the initial values. Entering function code 01 initializes almost all of the EEPROM areas, but entering 91 does not initialize some areas, as listed below.

  • Page 364: Printout Of Scanning Compensation Data (Function Code 05)

    1.4.2 Printout of Scanning Compensation Data (Function code 05) <Function> The machine prints out the black and white level data for scanning compensation. <Operating Procedure> Do not start this function merely after powering on the machine but start it after carrying out a sequence of scanning operation.
  • Page 365 Black and white level data for scanning compensation Fig. 5-1 Confidential...

  • Page 366: Placement Of Scanner Unit Position For Transportation (Function Code 06)

    1.4.3 Placement of Scanner Unit in Position for Transportation (Function code 06) <Function> This function is to move the scanner unit in position for transportation located at the left end. When you fix the machine and check its operation, you need to perform this function last before packing and shipping.

  • Page 367: Test Pattern (Function Code 09)

    1.4.5 Test Pattern (Function code 09) <Function> This function prints out a test pattern (Print Quality Check sheet) to allow the service personnel to check the print quality. <Operating Procedure> (1) Press the 0 and 9 buttons in this order in the initial stage of the maintenance mode. (2) The machine starts printing a test pattern.

  • Page 368: Worker Switch (Wsw) Setting And Printout

    1.4.6 Worker Switch (WSW) Setting and Printout [ 1 ] Worker Switch Setting (Function code 10) <Function> The machine incorporates the following worker switch functions which may be activated with the procedures using the control panel buttons. The worker switches have been set at the factory in conformity to the communications standards and codes of each country.

  • Page 369: Operating Procedure

    WSW No. Function Refer to: WSW37 Function setting 15 App. 1-42 WSW38 V.34 transmission settings App. 1-43 WSW39 V.34 transmission speed App. 1-44 WSW40 V.34 modem settings App. 1-45 WSW41 ON-duration of the scanning light source App. 1-47 WSW42 Internet mail settings App.
  • Page 370 Note: - To cancel this operation and return the machine to the initial stage of the maintenance mode during the above procedure, press the Stop/Exit button. - If there is a pause of more than one minute after a single-digit number is entered for double- digit worker switch numbers, the machine will automatically return to the initial stage of the maintenance mode.

  • Page 371: Operational Check Of Lcd (Function Code 12)

    1.4.7 Operational Check of LCD (Function code 12) <Function> This function allows you to check whether the LCD on the control panel works normally. <Operating Procedure> (1) Press the 1 and 2 buttons in this order in the initial stage of the maintenance mode. The LCD shows.

  • Page 372: Operational Check Of Control Panel Button (Function Code 13)

    (3) After the last number button is pressed, the machine beeps for one second and returns to the initial stage of the maintenance mode. To terminate this operation, press the Stop/Exit button. The machine beeps for one second and returns to the initial stage of the maintenance mode. MFC-9840CDW Fig. 5-5 DCP-9045CDN Fig. 5-6 5-12 Confidential...

  • Page 373: Rom Version Check (Function Code 25)

    1.4.9 ROM Version Check (Function code 25) <Function> This function allows you to check the management information of the software programs such as version information, check sum. <Operating Procedure> (1) Press the 2 and 5 buttons in this order in the initial stage of the maintenance mode. The machine displays each of terms described below on the LCD.

  • Page 374: Drum Unit Cleaning (Function Code 31)

    1.4.10 Drum Unit Cleaning (Function code 31) < Function > This function allows you to remove the dust attached on the surface of the exposure drum by using the drum cleaning sheet. < Operating Procedure > (1) Press the 3 and 1 buttons in this order in the initial stage of the maintenance mode. The “DRUM CLEANING”...

  • Page 375: Operational Check Of Sensors (Function Code 32)

    1.4.11 Operational Check of Sensors (Function code 32) <Function> This function allows you to check each of the sensors. <Operating Procedure> (1) Press the 3 and 2 buttons in this order in the initial stage of the maintenance mode. The machine beeps 1100 Hz and 400 Hz tones cycling through the following volumes for testing the speaker.
  • Page 376 Sensors Sensing status (ON/OFF) Develop release sensor Release / Welding Belt cleaner release sensor Release / Contact Waste toner sensor 1 Toner not detected / nearly full Waste toner sensor 2 Toner not detected / full Temperature and humidity Sensing status (OK / NG) sensors XX °...
  • Page 377 Location of sensors Toner sensor K (NEW) Toner sensor C (TE) Toner sensor M (TE) Toner sensor Y (NEW) Toner sensor Y (TE) Toner sensor M (NEW) Develop release sensor Toner sensor K (TE) Internal temperature sensor Paper feed frame unit Toner sensor C (NEW) T1 PE/edge sensor PCB ASSY...
  • Page 378 Develop press drive L ASSY MP PE sensor Front cover MP registration front sensor THM/HUM sensor holder ASSY MP unit ASSY THM/HUM sensor MP PE/sensor PCB ASSY LT connector Registration rear sensor LT tray guide left rear ASSY T1 registration front sensor LT sensor LT Paper feed frame unit LT PE sensor...

  • Page 379: Switching Of The Usb Transfer Speed In The Pictbridge Mode (Function Code 45)

    1.4.12 Switching of the USB Transfer Speed in the PictBridge Mode (Function code 45) <Function> This function allows you to change the USB transfer speed in the PictBridge mode. If the digital camera which a user uses cannot be connected in the PictBridge mode, it may be possible by changing the speed setting.

  • Page 380: Eeprom Customizing (User-Accessible) (Function Code 52)

    1.4.13 EEPROM Customizing (User-accessible) (Function code 52) <Function> This function allows users to customize the EEPROM settings such as language, function settings or worker switch settings. Note: This function is applicable to “France and surrounding countries”, “Pan-Nordic”, “Oceania” and “Iberia” areas only. <Operating Procedure>...

  • Page 381: Received Data Transfer Function (Function Code 53) (Mfc-9840Cdw Only)

    1.4.14 Received Data Transfer Function (Function code 53) (MFC-9840CDW only) <Function> This function transfers received FAX data to another machine. It is useful when the machine cannot print received data due to the printing mechanism being defective. It also transfers the maintenance information of the machine via FAX.
  • Page 382 Cover page sample Fig. 5-12 End page sample Fig. 5-13 5-22 Confidential...

  • Page 383: Fine Adjustment Of Scan Start/End Positions (Function Code 54)

    1.4.15 Fine Adjustment of Scan Start/End Positions (Function code 54) <Function> This function allows you to adjust the scanning start and end positions with the ADF and FB unit. <Operating Procedure> (1) Press the 5 and 4 buttons in this order in the initial stage of the maintenance mode. The “SCAN START ADJ.”...
  • Page 384 MAINTENANCE 5 and 4 buttons select SCAN  START  ADJ. OK button 2 seconds later Stop/Exit button :ADF  : FB button select Stop/Exit button button button OK button ACCEPTED Fig. 5-15 5-24 Confidential...

  • Page 385: Acquisition Of White Level Data And Ccd Scanner Area Setting (Function Code 55)

    1.4.16 Acquisition of White Level Data and CCD Scanner Area Setting (Function code 55) <Function> This function allows the machine to obtain white level data for the CCD scanner and save it together with the CCD scanner area into the EEPROM on the main PCB. Note: Always implement this operation when replacing the CCD unit, scanner unit or main PCB.

  • Page 386: Adjustment Of Color Registration (Maintenance Mode 66)

    1.4.17 Adjustment of Color Registration (Maintenance Mode 66) <Function> This function automatically adjusts color registration. If automatic adjustment of color registration fails, you can adjust color registration manually. <Operating Procedure> Automatic Adjustment of Color Registration (1) Press the 6 button twice in the initial stage of the maintenance mode. ”REGISTRATION”...
  • Page 387 (6) In the same way, enter the numeric value of the pattern 2, 3, 7, 8, and 9. (7) When you enter the numeric value of the pattern 9 (Yellow Right), “SET REGISTRATION/ COMPLETED” is displayed on the LCD. When you press the Stop/Exit button, a buzzer sounds for approx.

  • Page 388: Paper Feeding And Ejecting Test (Function Code 67)

    1.4.18 Paper Feeding and Ejecting Test (Function code 67) <Function> This function allows you to check that a sheet of paper is fed and ejected correctly by printing the grid pattern on a page, whose interval is 1cm. <Operating Procedure> (4) Press the 6 and 7 buttons in this order in the initial stage of the maintenance mode.

  • Page 389: Eeprom Customizing (Function Code 74)

    1.4.20 EEPROM Customizing (Function code 74) <Function> This function allows you to customize the EEPROM according to language, function settings, and worker switch settings. Note: If you replace the main PCB, be sure to carry out this procedure. <Operating Procedure> (1) Press the 7 and 4 buttons in this order in the initial stage of the maintenance mode.

  • Page 390: Sensitivity Adjustment Of Registration-Mark Sensor (Function Code 75)

    1.4.21 Sensitivity Adjustment of Registration-mark Sensor (Function code 75) <Function> This function makes the registration-mark sensor to adjust its sensitivity compulsory. This function makes the machine to check the surface of the belt unit by using the registration-mark sensor as well. Description Adjust the sensitivity of the registration-mark sensor when the REGI_SENS ADJUST...
  • Page 391 < During the 1 or 3 adjustments > Error Messages Description Solution REGI_SENS ADJUST Failure in writing the electron Replace the engine PCB ASSY. volume to NVRAM Write Err The measured data is REGI_SENS ADJUST Replace the belt unit. abnormal when the sensitivity If the belt unit is not replaced, set Belt Left Err of the left registration-mark...

  • Page 392: Printout Of Maintenance Information (Function Code 77)

    Printout of Maintenance Information 1.4.22 (Function code 77) <Function> This function is to print out log information. <Operating Procedure> (1) Press the 7 button twice in the initial state of the maintenance mode. The “MAINTENANCE 77” will appear on the LCD. (2) The machine prints out a list of log information.

  • Page 393: Operational Check Of Fans (Function Code 78)

    1.4.23 Operational Check of Fans (Function code 78) <Function> This function is to check whether each of fans is operating correctly or not. The following fans are checked. Parts Name Description Fuser unit fan Evacuate hot air of the fuser unit. Drum unit fan Evacuate hot air of the drum unit drive motor.
  • Page 394 Location of fans Fuser unit fan (FU) Exhaust Intake Air intake fan (AIR) Drum unit fan (OPC) LVPS fan (PS) Fig. 5-20 5-34 Confidential...

  • Page 395: Display Of The Machine's Log Information (Function Code 80)

    1.4.24 Display of the Machine’s Log Information (Function code 80) <Function> The machine may display its log information on the LCD. <Operating Procedure> (1) Press the 8 and 0 buttons in this order in the initial stage of the maintenance mode. The USB serial number appears on the LCD.
  • Page 396 *1: Some margin of error must be taken into consideration because coverage for the printable area of A4-size paper is calculated using video signals. *2: Not indicated for the DCP-9045CDN model. *3: The log information can be reset when pressing the 2, 7, 8 and 3 buttons while the information is being indicated.

  • Page 397: Error Code Indication (Function Code 82)

    1.4.25 Error Code Indication (Function code 82) <Function> This function displays an error code of the machine on the LCD. <Operating Procedure> (1) Press the 8 and 2 buttons in this order in the initial stage of the maintenance mode. The machine displays “MACHINE ERROR X X”...

  • Page 398: Output Of Transmission Log To The Telephone Line (Function Code 87)

    1.4.27 Output of Transmission Log to the Telephone Line (Function code 87) <Function> This function outputs the transmission log (that the machine has stored about the latest transmission) to the telephone line. It allows the service personnel to receive the transmission log of the user's machine at a remote location and use it for analyzing problems arising in the user's machine.

  • Page 399: Other Service Functions

    OTHER SERVICE FUNCTIONS Resetting the Periodical Replacement Parts Life 2.1.1 Resetting the Life Counter of the Belt Unit <Function> This function allows you to reset the page counter of the belt unit and increase the number of replacement times by one. <Operating Procedure>...

  • Page 400: Resetting The Life Counter Of The Drum Unit

    2.1.3 Resetting the Life Counter of the Drum Unit <Function> This function allows you to reset the page counter of the drum unit and increase the number of replacement times by one. <Operating Procedure> (1) Press the 3 and 9 buttons at the same time in the ready state. The “Reset Menu”...

  • Page 401: Resetting The Life Counter Of The Mp Paper Feeding Kit

    2.1.5 Resetting the Life Counter of the MP Paper Feeding Kit <Function> This function allows you to reset the page counter of the MP paper feeding kit and increase the number of replacement times by one. <Operating Procedure> (1) Press the 3 and 9 buttons at the same time in the ready state. The “Reset Menu”...

  • Page 402: Develop Roller/ Developing Bias Voltage Counter Reset Function

    Develop Roller/ Developing Bias Voltage Counter Reset Function Since print density is likely to become darker as the toner gets older, the developing bias is lowered by degrees (bias voltage is reduced) according to the number of develop roller rotations so that an almost fixed density can be maintained from the beginning to the end. The developing bias voltage can be verified in the display of log information (Function code 80).

  • Page 403: Drum Unit Cleaning Mode

    Drum Unit Cleaning Mode <Function> This mode is to remove the dust attached on the exposure drum. When white spots appear on the printout, perform this operation to remove the dust by using the drum cleaning sheet. <Operating Procedure> (1) Load the drum cleaning sheet into the MP tray. (2) Check that the Status LED lights in green and press the and Clear/Back buttons at the same time.

  • Page 404: Chapter 6 Circuit Diagrams, Wiring Diagram

    CHAPTER 6 CIRCUIT DIAGRAMS, WIRING DIAGRAM Charge High-voltage Power Supply PCB Circuit Diagram (1/4) Confidential...
  • Page 405 Charge High-voltage Power Supply PCB Circuit Diagram (2/4) Confidential...
  • Page 406 Charge High-voltage Power Supply PCB Circuit Diagram (3/4) Confidential...
  • Page 407 Charge High-voltage Power Supply PCB Circuit Diagram (4/4) Confidential...
  • Page 408 Transfer High-voltage Power Supply PCB Circuit Diagram (1/2) Confidential...
  • Page 409 Transfer High-voltage Power Supply PCB Circuit Diagram (2/2) Confidential...
  • Page 410 Low-voltage Power Supply PCB Circuit Diagram (100V) Confidential...
  • Page 411 Low-voltage Power Supply PCB Circuit Diagram (200V) Confidential...
  • Page 412 NCU PCB Circuit Diagram +24V 1SS120 R7 100 2W C103 C2.2 R41-4910-A A5X-24E-908 @R8 510 RA-351M-V6-2 2.7k BT-17 (LINE) C221 C104 4.3k R14 100k C101 C104 RA-242M-C6 C102 RA-242M-C6 11 TELRL TELRL 100k C104 10 TELSL TELSL BA10358 9 +24V TLP421 +24V 100k...
  • Page 413 Filter PCB Circuit Diagram 6-10 Confidential...
  • Page 414 Wiring Diagram (1/2) CN37 CN31 FRONT COVER OPEN SW B512230 +5VI Interlock Switch +5VI BD PCB B512232 FRONT_COVER_SEN (SS-3FL30P-3(OMRON)) (Laser Power) +5VI +3.3V +3.3V AD_PD1 B2B-EH AD_PD1 3.3V CN26 AD_PD2 AD_PD2 REAR COVER OPEN SW PWR_PWM3 BD_n BD_n frnt_cov_sen AD_PD4 REAR_COV_SEN to CPU(GPIO) AD_PD4...
  • Page 415 Wiring Diagram (2/2) LINK +3.3V +3.3V CN12 +3.3V +3.3V(LED) MAC+PHY LED:Green/Yellow LAN Clock (SMSC:LAN91C115) 8MB or 16MB 8MB or 16MB TPI+/- Flash ROM (internal Logic:1.8V) 25.00MHz Flash ROM TPO+/- BEL:08B0-1X1T-03-F DATA SPEED +3.3V +3.3V +3.3V +3.3V +3.3V 16MB SDRAM 16MB SDRAM 16MB SDRAM 16MB SDRAM MAIN Clock...

  • Page 416: Appendix 1 Worker Switch Settings (Wsw)

    APPENDIX 1 WORKER SWITCH SETTINGS (WSW) This appendix describes the functions of the Worker switches, which can be divided into two groups: one is for customizing preferences designed for the shipping destination (Refer to “1.4.19 EEPROM Customizing (Function Code 74)” in Chapter 5) and the other is for modifying preferences that match the machine to the environmental conditions.
  • Page 417 WSW No. Function Refer to: WSW26 Function setting 4 App. 1-31 WSW27 Function setting 5 App. 1-32 WSW28 Function setting 6 App. 1-33 WSW29 Function setting 7 App. 1-34 WSW30 Function setting 8 App. 1-35 WSW31 Function setting 9 App. 1-36 WSW32 Function setting 10 App.
  • Page 418 The functions and settings for each worker switch (WSW) are described below; < WSW01 > Selector No. Function Setting and Specifications No. 1 0 : N Dial pulse generation mode 1 : N+1 0 : 10-N 1 : N No. 3 0 : 60 ms Break time length in pulse 1 : 67 ms...
  • Page 419 - Selectors 5 and 6: Inter-digit pause These selectors set the inter-digit pause in pulse dialing. (Example: If “1,” “2,” and “3” are dialed when N is set by selectors 1 and 2.) - Selector 7: Switching between pulse and tone dialing, by the function switch This selector determines whether or not the dialing mode can be switched between the pulse (DP) and tone (PB) dialing by using the function switch.
  • Page 420 < WSW02 > Selector No. Function Setting and Specifications No. 1 0 : 70 ms Tone signal transmission time 1 : 80 ms length 0 : 90 ms 1 : 100 ms No. 3 0 : 70 ms Min. pause in tone dialing 1 : 80 ms 0 : 90 ms 1 : 140 ms...
  • Page 421 < WSW03 > Selector No. Function Setting and Specifications CNG detection when sharing a modular wall socket with a 0: A 1: B telephone No. 2 0 0: 50 ms 0 1: 210 ms 1 0: 500 ms Detection time length of PABX* dial tone, required for starting 1 1: 800 ms dialing...
  • Page 422 - Selectors 2 through 4: Detection time length of PABX dial tone, required for starting dialing Upon detection of the PABX dial tone for the time length set by these selectors, the machine starts dialing. These selectors are effective only when both selectors 6 and 7 are set to “1”...
  • Page 423 < WSW04 > Selector No. Function Setting and Specifications Earth function in transfer facility 0: Provided 1: Not provided (Not used.) No. 2 0: 350 and 440 Hz Dual tone detection frequency 1: 440 and 480 Hz in ICM recording 0: 480 and 620 Hz 1: 480 and 620 Hz Dual tone detection sensitivity...
  • Page 424 < WSW05 > Selector No. Function Setting and Specifications No. 1 0 0: 3.5 sec. wait 0 1: 7.0 sec. wait 1 0: 10.5 sec. wait 1st dial tone detection 1 1: 14.0 sec. wait 0 0: 17.5 sec. wait 0 1: 21.0 sec.
  • Page 425 - Selectors 5 and 6: Busy tone detection in automatic sending mode These selectors determine whether or not the machine automatically disconnects a line upon detection of a busy tone in automatic sending mode. Setting selector 6 to “0” ignores a busy tone so that the machine does not disconnect the line.
  • Page 426 - Selectors 1 through 3: Redial/Pause button setting and 2nd dial tone detection Selectors No wait is inserted even if the Redial/Pause button is pressed. If you press the Redial/Pause button during dialing, the machine will insert wait as defined in the above table. If the Redial/Pause button is pressed repeatedly, the machine inserts the specified wait multiplied by the number of depressions.
  • Page 427 < WSW07 > Selector No. Function Setting and Specifications No. 1 0: Narrows by 10 Hz Dial tone frequency band 1: Initial value control 0: Widens by 10 Hz 1: Widens by 10 Hz Line current detection 0: No 1: Yes (Not used.) No.
  • Page 428 < WSW08 > Selector No. Function Setting and Specifications No. 1 0 0: 50 ms 0 1: 250 ms 1 0: 500 ms 1st dial tone detection time 1 1: 620 ms length 0 0: 800 ms 0 1: 1.5 sec. 1 0: 2.0 sec.
  • Page 429 < WSW09 > Selector No. Function Setting and Specifications Frame length selection 0: 256 octets 1: 64 octets Use of non-standard commands 0: Allowed 1: Prohibited No. 3 0: 4 times No. of retries 1: 3 times 0: 2 times 1: 1 times T5 timer 0: 300 sec.
  • Page 430 < WSW10 > Selector No. Function Setting and Specifications DPS switching interfacing with 0: No 1: Yes Time length from transmission 0: 100 ms 1: 50 ms of the last dial digit to CML ON Time length from CML ON to 0: 2 sec.
  • Page 431 < WSW11 > Selector No. Function Setting and Specifications No. 1 0: Narrows by 10 Hz Busy tone frequency band 1: Initial value control 0: Widens by 10 Hz 1: Widens by 10 Hz 1: 250-750/250-750 ms 1: 400-600/400-600 ms ON/OFF time length ranges for 1: 175-440/175-440 ms busy tone (More than one...
  • Page 432 < WSW12 > Selector No. Function Setting and Specifications No. 1 0: 1500 ms Min. detection period required for interpreting incoming calling 1: 500 ms signal (CI) as OFF 0: 700 ms 1: 900 ms No. 3 0: 6 sec. Max.
  • Page 433 < WSW13 > Selector No. Function Setting and Specifications No. 1 0: 0 km Cable equalizer 1: 1.8 km 0: 3.6 km 1: 5.6 km No. 3 0: -43 dBm Reception level 1: -47 dBm 0: -49 dBm 1: -51 dBm 0: 0 dB 0: 8 dB 0: 0 dB...
  • Page 434 < WSW14 > Selector No. Function Setting and Specifications No. 1 0: 13 Hz Frequency band selection (lower limit) for incoming calling 1: 15 Hz signal (CI) 0: 23 Hz 1: 20 Hz No. 3 0: 30 Hz Frequency band selection (upper limit) for incoming calling 1: 55 Hz signal (CI)
  • Page 435 < WSW15 > Selector No. Function Setting and Specifications No. 1 0: 5 min. Redial interval 1: 1 min. 0: 2 min. 1: 3 min. No. 3 4 5 6 0 0 0: 16 times 0 0 1: 1 times No.
  • Page 436 < WSW16 > Selector No. Function Setting and Specifications Not used. ITU-T (CCITT) superfine 0: OFF 1: ON recommendation Not used. Max. document length limitation 0: 400 cm 1: 90 cm Stop/Exit button pressed 0: Not functional 1: Functional during reception Note: Selector 7 is applicable to models equipped with ADF units.
  • Page 437 < WSW17 > Selector No. Function Setting and Specifications No. 1 0: No alarm 1: Always valid Off-hook alarm 0: Valid except when' call reservation' is selected. 1: Valid except when' call reservation' is selected. Not used. Calendar clock type 0: U.S.A.
  • Page 438 < WSW18 > Selector No. Function Setting and Specifications Not used. No. 2 0: 40 sec. Detection enabled time for CNG 1: 0 sec. (No detection) and no tone 0: 5 sec. 1: 80 sec. Not used. Registration of station ID 0: Permitted 1: Prohibited No.
  • Page 439 < WSW19 > Selector No. Function Setting and Specifications No. 1 First transmission speed choice No. 4 for fallback 0 0: 2,400 bps 0 1: 4,800 bps 1 0: 7,200 bps 1 1: 9,600 bps Last transmission speed choice 0 0: 12,000 bps for fallback 0 1: 14,400 bps 1 0: 14,400 bps...
  • Page 440 < WSW20 > Selector No. Function Setting and Specifications EP* tone prefix 0: OFF 1: ON Overseas communications 0: 2100 Hz 1: 1100 Hz mode (Reception) Overseas communications 0: OFF 1: Ignores DIS once. mode (Transmission) No. 4 0: 100 ms Min.
  • Page 441 - Selectors 8: Limitation on CNG detection If this selector is set to “1,” the machine detects a CNG signal according to the condition preset by selectors 2 and 3 on WSW18 after a line is connected. If it is set to “0,” the machine detects a CNG signal as long as the line is connected.
  • Page 442 < WSW22 > Selector No. Function Setting and Specifications ECM* in sending 0: Valid 1: Invalid ECM* in receiving 0: Valid 1: Invalid Call Waiting Caller ID 0: Displayed 1: Not displayed Not used. 0: 0 % 1: 8 % Acceptable TCF bit error rate 0: 0 % 1: 4 %...
  • Page 443 < WSW23 > Selector No. Function Setting and Specifications 0: 0 From the head of a series of zeros Starting point of training check (TCF) 1: From any arbitrary point No. 2 0: 0 % Allowable training error rate 1: 0.5 % 0: 1 % 1: 2 % No.
  • Page 444 < WSW24 > Selector No. Function Setting and Specifications No. 1 0: 15 sec. Maximum OGM recording time 1: 20 sec. 0: 30 sec. 1: 50 sec. No. 3 0: 4 sec. Time length from CML ON to start of pseudo ring backtone 1: 3 sec.
  • Page 445 < WSW25 > Selector No. Function Setting and Specifications No. 1 0: 0 sec. External TAD no-tone detection 1: 8 sec. start delay time 0: 16 sec. 1: 24 sec. No. 3 0: -43 dB External TAD no-tone detection 1: -46 dB level 0: -49 dB 1: -51 dB...
  • Page 446 < WSW26 > Selector No. Function Setting and Specifications Not used. Dialing during document reading into the temporary 0: Disable 1: Enable memory in in-memory message transmission No. 4 No. of CNG cycles to be detected 0: 0.5 (when the line is connected via the external telephone except in 1: 1 the external TAD mode or via...
  • Page 447 < WSW27 > Selector No. Function Setting and Specifications Not used. Ringer OFF setting 0: Yes 1: No Automatic playback of OGM when switched to the TAD 0: No 1: Yes mode Detection of distinctive ringing 0: Yes 1: No pattern Not used.
  • Page 448 < WSW28 > Selector No. Function Setting and Specifications No. 1 0 0: 0 dB 0 1: +1 dB 1 0: +2 dB Transmission level of DTMF 1 1: +3 dB high-band frequency signal 0 0: 0 dB 0 1: -1 dB 1 0: -2 dB 1 1: -3 dB No.
  • Page 449 < WSW29 > Selector No. Function Setting and Specifications No. 1 0 0: -47.0 dBm 0 1: -48.5 dBm Compression threshold level for 1 0: -50.0 dBm voice signals inputted via the 1 1: -51.5 dBm telephone line in the built-in 0 0: -53.0 dBm TAD operation 0 1: -54.5 dBm...
  • Page 450 < WSW30 > Selector No. Function Setting and Specifications No. 1 0 0: -38.0 dBm 0 1: -39.5 dBm 1 0: -41.0 dBm Dial tone/busy tone detection level during recording of ICM 1 1: -42.5 dBm (Not used.) 0 0: -44.0 dBm 0 1: -45.5 dBm 1 0: -47.0 dBm 1 1: -48.5 dBm...
  • Page 451 < WSW31 > Selector No. Function Setting and Specifications Not used. Default reduction rate for failure of automatic reduction during 0: 100 % 1: 75 % recording Not used. (Do not disturb this selector.) Minimum ON and OFF duration of ringer signals effective in 0: 130 ms 1: 90 ms distinctive ringing...
  • Page 452 < WSW32 > Selector No. Function Setting and Specifications Not used. No. 5 0: Standard Default resolution 1: Fine 0: Super fine 1: Photo No. 7 0: Automatic Default contrast 1: Automatic 0: Super light 1: Super dark - Selectors 5 and 6: Default resolution These selectors set the default resolution which applies when the machine is turned on or completes a transaction.
  • Page 453 < WSW33 > Selector No. Function Setting and Specifications No. 1 0 0: -48 dBm 0 1: -50 dBm 1 0: -52 dBm Detection threshold level of “no 1 1: -54 dBm tone” during recording of ICM 0 0: -56 dBm 0 1: -58 dBm 1 0: -60 dBm (G) (Default)
  • Page 454 < WSW34 > Selector No. Function Setting and Specifications No. 1 0 0: 0 sec. Erasing time length of ICM tone 0 1: 1 sec. recorded preceding the tone 1 0: 2 sec. detection starting point in the 1 1: 3 sec. case of automatic line 0 0: 4 sec.
  • Page 455 < WSW35 > Selector No. Function Setting and Specifications No. 1 2 3 4 0 0 0: No detection 0 0 1: 1 sec. Max. detection period of dial tone/busy tone during recording 0 1 0: 2 sec. of ICM 1 0 0: 4 sec.
  • Page 456 - Selector 1: ECP mode (Not used.) The ECP mode enhances the normal bidirectional communications between the machine and the connected PC for higher transmission speed. - Selector 2: Recovery from Inactive PC Interface (Not used.) If the machine recognizes via the STB signal line that the connected PC is powered off, it will turn the PC interface outputs Low to protect the PC from hazards that could be caused by weak electric current accidentally flown from the machine.
  • Page 457 < WSW37 > Selector No. Function Setting and Specifications Printout of the stored image data of an unsent document 0: No 1: Yes onto an error report Erasure of the stored image data of an unsent document at 0: No 1: Yes the time of the subsequent in- memory message transmission...
  • Page 458 < WSW38 > Selector No. Function Setting and Specifications No. 1 0: Automatic Setting of the equalizer 1: Automatic 0: Fixed to 4 points 1: Fixed to 16 points Sending level of guard tone at 0: Normal - 7 db 1: Normal phase 2 Stepping down the transmission...
  • Page 459 - Selector 8: Detection of CED for stopping CNG If this selector is set to “0,” the detection time of CED specified by WSW43, selectors 4 and 5 will apply. < WSW39 > Selector No. Function Setting and Specifications No. 1 2 3 4 No.
  • Page 460 < WSW40 > Selector No. Function Setting and Specifications Not used. Not masking Masking No. 3 3429 symbols/sec No. 4 3200 symbols/sec Masking of symbol rate(s) No. 5 3000 symbols/sec No. 6 2800 symbols/sec No. 7 Not used. No. 8 2400 symbols/sec Note: WSW40 takes effect only when the V.34 mode is permitted (WSW19, selector 7) in models...
  • Page 461 Symbol rate Transmission Symbol rate Transmission Symbol rate Transmission speed (bps) speed (bps) speed (bps) 2400 2,400 3000 4,800 3429 4,800 4,800 7,200 7,200 7,200 9,600 9,600 9,600 12,000 12,000 12,000 14,400 14,400 14,400 16,800 16,800 16,800 19,200 19,200 19,200 21,600 21,600 21,600...
  • Page 462 < WSW41 > Selector No. Function Setting and Specifications No. 1 0 0: 30 min. 0 1: 120 min. 1 0: 90 min. ON-duration of the scanning light source at room 1 1: 60 min. temperature 0 0: 45 min. 0 1: 15 min.
  • Page 463 < WSW42 > Selector No. Function Setting and Specifications Access to the incoming mail (POP3) server 0: OFF 1: ON (Periodical or on-demand) (Not used.) Access to the outgoing mail 0: OFF 1: ON (SMTP) server I-FAX relay (Not used.) 0: OFF 1: ON JBIG encoding system...
  • Page 464 < WSW44 > Selector No. Function Setting and Specifications No. 1 0 0: Max. Copying speed control 0 1: 1cpm 1 1: 31cpm No. 6 0 0: Obtained compensation data ineffective 0 1: 1 min. Effective time length of the 1 0: 3 min.
  • Page 465 < WSW45 > Selector No. Function Setting and Specifications No. 1 0 0: No automatic drawing-in 0 1: 1 sec. 1 0: 2 sec. Delay time from when 1 1: 3 sec. documents are set until the ADF starts drawing them in 0 0: 4 sec.
  • Page 466 - Selector 7: Standby position of the CCD unit This selector determines whether the standby position of the CCD unit should be the home position or the location of the white-level reference film (attached to the inside of the scanner top cover). If the location of the reference film is selected, the CCD unit will not return to the home position so as to shorten the travel time, decreasing the preparation time for copying.
  • Page 467 < WSW47 > Selector No. Function Setting and Specifications Handling paper at the 0: Eject paper w/o print occurrence of a paper feed 1: Print on the current paper timing error (Not used.) Not used. No. 3 0: 200 ms Delay of FAX line disconnection when switching to the pseudo- 1: 400 ms...
  • Page 468 < WSW48 > Selector No. Function Setting and Specifications Not used. No. 3 0 0: 25 PCs 0 1: 50 PCs 1 0: 75 PCs Number of network TWAIN PCs 1 1: 100 PCs registered for each application 0 0: 125 PCs 0 1: 150 PCs 1 0: 175 PCs 1 1: 200 PCs...
  • Page 469 < WSW49 > Selector No. Function Setting and Specifications No. 1 0: None RAM disc size in PCL/ PS 1: 1MB 0: 2MB 1: 4MB End-of-copying beep 0: Yes 1: No No. 4 0: 150 ms Command flag detection time 1: 350 ms 0: 550 ms 1: 750 ms...
  • Page 470 < WSW50 > Selector No. Function Setting and Specifications No. 1 Percentage voltage for 0: 50 % interpreting the external telephone as being hooked up 1: 80 % (based on the network's 0: 30 % standard voltage) 1: No detection DC mask curve table to be 0: Apply the initial value specified by applied when the line is...
  • Page 471 < WSW51 > Selector No. Function Setting and Specifications Output of communications error report when transmission 0: Enable 1: Disable verification report is disabled CR motor torque variation 0: Yes 1: No reduction control (Not used.) No. 3 0: Middle (Default) Cordless handset microphone 1: Low volume...
  • Page 472 < WSW52 > Selector No. Function Setting and Specifications No. 1 0 0: Microphone level 0 with echo cancellation OFF Cordless handset microphone 0 1: Microphone level 1 with level and echo cancellation echo cancellation ON ON/OFF 1 0: Microphone level 2 with echo cancellation ON 1 1: Microphone level 3 with echo cancellation ON...
  • Page 473 < WSW53 > Selector No. Function Setting and Specifications Not used. No. 3 0: 0 ms Caller ID (number display) FSK 1: 100 ms receiving timing delay setting 0: 150 ms 1: 200 ms No. 5 0: 20 ms Caller ID (number display) instantaneous interrupt 1: 10 ms detection time setting...
  • Page 474 < WSW54 > Selector No. Function Setting and Specifications No. 1 0: 100 ms (default) PictBridge command delay time 1: 0 ms 0: 50 ms 1: 200 ms More CNG detection cycles in 0: No 1: 2 more cycles user-friendly reception Cordless handset ID recovery 0: Valid 1: Invalid...
  • Page 475 - Selector 8: Switching between DTMF and FSK for caller ID reception (Not used) If a caller ID (number display) cannot be received, switch from DTMF to FSK. This operation can also be performed by means of the menu, by switching between DTMF and FSK.
  • Page 476 < WSW57 > Selector No. Function Setting and Specifications No. 1 0 0: 0 V 0 1: 5 V (Default) 1 0: 10 V Caller ID judgment voltage (to be distinguished from rings) 1 1: 15 V (Not used.) 0 0: 20 V 0 1: 25 V 1 0: 30 V 1 1: Max.
  • Page 477 < WSW58 > Selector No. Function Setting and Specifications No. 1 0 0: Invalid 0 1: 10 % Prevention of line interrupt 1 0: 20 % during ICM recording (ratio of guard tone response time to call 1 1: 30 % (Default) end tone ON time) 0 0: 40 % (Not used.)
  • Page 478 < WSW60 > Selector No. Function Setting and Specifications Not used. < WSW61 > Selector No. Function Setting and Specifications No. 1 2 3 4 0 0 0: 1% (Default) 0 0 1: 0.5% 0 1 0: 3% Change rate of the CCD 0 1 1: 5% scanning light intensity to judge 1 0 0: 10%...
  • Page 479 < WSW62 > Selector No. Function Setting and Specifications Change rate Change rate for simple for regular No. 1 2 3 4 compensation compensation 0 0 0: 10% * 0 0 1: 0 1 0: 0 1 1: 1 0 0: 1 0 1: Change rate of the CCD light 1 1 0:...
  • Page 480 Change rate for regular compensation: Change rate when compensating the pages with moving the CCD unit to the designated position for scanning of the compensation data and obtaining the data actually. For duplex scanning, this setting is not used since the machine takes the compensation data of every page again.

  • Page 481: Appendix 2 Deletion Of Personal Information

    APPENDIX 2 DELETION OF PERSONAL INFORMATION The personal information in the machine is recorded in the EEPROM on the main PCB. It cannot be deleted all by a single operation. Use Function code 01 in the maintenance mode, unplug the AC cord from the electrical outlet, and disconnect the backup battery. Operating Procedure [ 1 ] Using Function code 01 Using Function code 01 (EEPROM Parameter Initialization) in the maintenance mode...
  • Page 482 [ 3 ] Restoring the network settings The procedure below allows you to return the LAN settings to the factory setting values. <Operating Procedure> (1) Press the Menu button. Next press the button to select “LAN”. Press the OK button (2) Press the button to select “Factory Reset”.

  • Page 483: Appendix 3 Serial Numbering System

    APPENDIX 3 SERIAL NUMBERING SYSTEM Each machine has a serial number label for the machine itself and property labels for some other parts. Refer to the information below for the meaning of the serial number and property codes and the location of each label. Serial number labels for the machine itself Serial number A 7 J 1 1 1 1 0 1...
  • Page 484 Waste toner box serial label Barcode C L C F 7 J 0 0 0 0 0 1 Z C L C F 7 J 0 0 0 0 0 1 Unique information Unit type Serial number (6-digit) Model type C: AC Manufacturing factory No.
  • Page 485 Belt unit serial label Barcode B L C F 7 J 0 0 0 0 0 1 Z B L C F 7 J 0 0 0 0 0 1 Unique information Unit type Serial number (6-digit) Model type C: AC Manufacturing factory No.
  • Page 486 Toner cartridge(K, Y, M, C) and Drum unit serial label Barcode TKCM7JA000001ELR1189 Part code Unit type DR: Drum unit Assembly line number TM: Toner unit Magenta Serial number (6-digit) TC: Toner unit Cyan TY: Toner unit Yellow Toner filling amount (A D, 5) TK: Toner unit Black Manufacturing factory No.

  • Page 487: Appendix 4 Screw Catalogue

    APPENDIX 4 SCREW CATALOGUE Taptite, bind B Screw, bind Screw, bind Taptite, bind B M3x5 M3x8 Screw, bind Taptite, bind B M3x8 M3x10 Taptite, bind B Shoulder screw  M3x12 Taptite, bind B Shoulder screw M4x10 Taptite, bind B Shoulder screw M4x12  Taptite, cup S  Taptite, bind S Taptite, cup S Taptite, bind S M3x6 M3x6 Taptite, cup S M3x8 Taptite, cup B Taptite, cup S Taptite, cup B M4x8 M3x6 Taptite, cup S Taptite, cup B M3x6 SR M3x8 Taptite, cup S Taptite, cup B M3x8 SR...
  • Page 488 Taptite, pan B Screw flanged Taptite, pan B Screw flanged M3x8 M3x3.5 Screw pan (S/P washer) Taptite, B Screw pan (S/P washer) Taptite, B M3x6 M3x6 Screw pan (S/P washer) M3.5x6 Taptite, flat B Screw pan (S/P washer) Taptite, flat B M4x8 M3x10 App.4-2...

  • Page 489: Appendix 5 How To Make The Drum Unit Remove Sheet . App.5-1

    APPENDIX 5 HOW TO MAKE THE DRUM UNIT REMOVE SHEET Make the drum unit remove sheet following the procedures below and use it when packing the drum unit. < Requirements > - A3 or ledger-size paper - A4 or letter-size paper <...
  • Page 490 (3) Align those two sheets of paper with the marking lines on the drum unit remove sheet and attach them. Marking line Marking line * A4 or letter-size paper * A3 or ledger-size paper to be cut Drum unit remove sheet Fig.

  • Page 491: Appendix 6 References

    APPENDIX 6 REFERENCES This page provides reference information. It is possible to get the full instructions of the subjects listed by just clicking on the links below. 1. Error codes (Refer to “2.1 Error Indication”, Chapter 1 of the Service Manual.) 2.

This manual is also suitable for:

Mfc-9840cdw

Table of Contents