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Primary FIPs:Image Quality Problems

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Primary FIPs:Image Quality Problems Use Letter-size or A4 paper when troubleshooting an image quality problem. Image Quality FIPs assume there is no malfunction of the printer controller. Use Printing Test Mode to determine whether an image quality problem is being caused by the printer engine or by the printer controller. The printer engine generates the test print. If the test print is normal, but the regular prints have a image quality problem, the problem may be with the printer controller. If you are unable to solve the image problem using the Image Quality FIPs, we recommend that you replace the printer controller with a known good controller. If the problem still persists, we recommend you replace each component listed in Initial Analysis of the problem FIP, one by one, until you solve the problem. 5-4 OKI B6100 Laser Printer - Base Engine Technical Manual Version 1.0

Section	Page
FEDERAL COMMUNICATIONS COMMISSION NOTICE	3
Modifications	3
CANADIAN NOTICE	4
AVIS CANADIEN	4
EUROPEAN NOTICE	4
CLASS 1 LASER PRODUCT	5
Unpacking the Base Engine	6
1. Open the Cover Assy Front (PL1.1.9).	6
2. Catch in the handle of the Holder BTR:L.And pull out the Holder BTR:L from the Base Machine to...	6
3. Catch in the handle of the Holder BTR:R.And pull out the Holder BTR:R from the Base Machine to...	6
Contents	7
Introduction	9
About this Manual	10
Sections 1 The Service Flowchart	13
1. Service Flowchart	14
1. Verify that the reported problem does exist.	15
2. Check for any error codes.	15
3. Execute three test prints.	15
4. Take note of any print quality problems in the three test prints.	15
5. Take note of any mechanical or electrical abnormalities that are present.	15
6. Take note of any unusual noise or smell coming from the printer.	15
7. When you have identified the problem, go to the next block that is listed in the Service Flowc...	15
1. Switch OFF the printer power.	15
2. Disconnect the AC power cord from the wall outlet.	15
3. Disconnect the power cord from the printer.	15
4. Open the Cover Assy Front.	15
5. Remove the CRU.	15
6. Inspect for and remove any foreign matter such as paper clips, staples, scraps of paper, paper...	15
7. Clean the interior with a lint–free cloth, dampened slightly with cold water.	15
8. Clean the rubber rollers with a lint-free cloth, dampened slightly with cold water. Use a clea...	15
9. Clean the Laser Scanner window with a soft, dry, lint-free cloth.	15
10. Use canned air to clean the BTR.	15
11. While cleaning, inspect the interior of the printer for damaged wires, loose connections, ton...	15
12. If the CRU appears excessively dirty or obviously damaged, replace it with a new one.	15
13. When you have finished cleaning the printer, go to the next block that is listed in the Servi...	15
1. Reinstall all of the covers that you removed while servicing the printer.	16
2. Check that the original error code is gone and there are no new error codes displayed.	16
3. Execute a series of test prints.	16
4. Take note of any mechanical or electrical abnormalities that are present.	16
5. Take note of any unusual noise or smell coming from the printer.	16
6. The call is completed.	16
Section 2 The Fault Isolation Procedure (FIP) Flowchart Contents	17
2. The FIP Flowchart	18
1. If you have an error code displayed on the screen of the Diagnostic Tool; go to the ERROR CODE...	18
2. If you have a printer operation problem; go to the PRINTER PERFORMANCE box.	18
3. If you have a print image problem; go to the IMAGE QUALITY box.	18
4. Follow the arrow leading from your problem box to the individual FIP (Fault Isolation Procedur...	18
5. Follow the instructions presented in the FIP.	18
1. Each numbered step in a FIP instructs you to perform a certain action or procedure.	18
2. The instruction is followed by a question.	18
3. If your response to the question is Yes, then follow the instructions for a Yes reply.	18
4. If your response to the question is No, then follow the instructions for a No reply.	18
5. FIPs often ask you to take voltage readings at certain test points within the printer.	18
6. FIPs often ask you to replace a printer component.	18
1. FIPs assume there is no malfunction in printer controller. If you are unable to fix a problem ...	19
2. FIPs use new and \	19
3. Unless indicated otherwise, the instruction \	19
4. Conventions used to represent connectors:	19
5. When you are instructed to take a voltage reading between \	19
6. When you are instructed to take voltage readings between \	19
7. When you are instructed to take a voltage reading, the black probe (–) is generally connected ...	19
8. Unless a FIP instructs you otherwise; before measuring voltages make sure the printer is switc...	19
9. All voltage values given in the FIPs are approximate values. Actual measured voltages may vary...	19
10. FIPs may instruct you to remove or replace a component. Refer to Section 10 Removal and Repla...	19
11. When a FIP instructs you to replace a component, and that component is part of a larger assem...	19
3. Level 1 FIPs: Error Codes	22
1. Is the printer plugged into a recommended AC wall outlet?	22
2. Is the AC power provided at the wall outlet within recommended specifications?	22
3. Is the AC power cord connected to the printer.	22
4. Is the AC power cord in good condition; not frayed or broken?	22
5. Is the printer properly grounded through the AC wall outlet?	22
6. Is the printer located in an area where the temperature and humidity are moderate and stable?	22
7. Is the printer located in an area that is free of dust?	22
8. Is the printer located in an area away from water outlets, steamers, electric heaters, volatil...	22
9. Is the printer shielded from the direct rays of the sun?	22
10. Does the printer have recommended space around all sides for proper ventilation?	22
11. Is the printer sitting on a level and stable surface?	22
12. Is recommended paper stock being used in the printer?	22
13. Does the customer use the printer as instructed in the OKI B6100 User Manual?	22
14. Are consumables, such as the CRU, replaced at recommended intervals?	22
Section 4 Primary FIPs:Printer Performance Problems Contents	59
1. Is the printer plugged into a recommended AC wall outlet?	60
2. Is the AC power provided at the wall outlet within recommended specifications?	60
3. Is the AC power cord connected to the printer.	60
4. Is the AC power cord in good condition; not frayed or broken?	60
5. Is the printer properly grounded through the AC wall outlet?	60
6. Is the printer located in an area where the temperature and humidity are moderate and stable?	60
7. Is the printer located in an area that is free of dust?	60
8. Is the printer located in an area away from water outlets, steamers, electric heaters, volatil...	60
9. Is the printer shielded from the direct rays of the sun?	60
10. Does the printer have recommended space around all sides for proper ventilation?	60
11. Is the printer sitting on a level and stable surface?	60
12. Is recommended paper stock being used in the printer?	60
13. Does the customer use the printer as instructed in the OKI B6100 User Manual?	60
14. Are consumables, such as the CRU, replaced at recommended intervals?	60
Image Quality Problems	71
1. Is the printer plugged into a recommended AC wall outlet?	71
2. Is the AC power provided at the wall outlet within recommended specifications?	71
3. Is the AC power cord connected to the printer.	71
4. Is the AC power cord in good condition; not frayed or broken?	71
5. Is the printer properly grounded through the AC wall outlet?	71
6. Is the printer located in an area where the temperature and humidity are moderate and stable?	71
7. Is the printer located in an area that is free of dust?	71
8. Is the printer located in an area away from water outlets, steamers, electric heaters, volatil...	71
9. Is the printer shielded from the direct rays of the sun?	71
10. Does the printer have recommended space around all sides for proper ventilation?	71
11. Is the printer sitting on a level and stable surface?	71
12. Is recommended paper stock being used in the printer?	71
13. Does the customer use the printer as instructed in the OKI B6100 User Manual?	71
14. Are consumables, such as the CRU, replaced at recommended intervals?	71
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	73
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	73
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	75
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	75
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	77
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	77
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	78
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	78
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	79
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	79
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	80
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	80
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	82
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	82
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	83
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	83
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	84
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	84
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	85
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	85
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	86
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	86
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	87
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	87
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	88
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	88
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	89
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	89
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	90
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	90
1. Inspect the following components. Are they compatible with your printer version, correctly ins...	91
2. Inspect the printer paper path. Is it clear of foreign matter such as staples, paper clips, an...	91
Section 6 Secondary FIPs Contents	93
Secondary FIPs	95
1. Is the printer plugged into a recommended AC wall outlet?	95
2. Is the AC power provided at the wall outlet within recommended specifications?	95
3. Is the AC power cord connected to the printer.	95
4. Is the AC power cord in good condition; not frayed or broken?	95
5. Is the printer properly grounded through the AC wall outlet?	95
6. Is the printer located in an area where the temperature and humidity are moderate and stable?	95
7. Is the printer located in an area that is free of dust?	95
8. Is the printer located in an area away from water outlets, steamers, electric heaters, volatil...	95
9. Is the printer shielded from the direct rays of the sun?	95
10. Does the printer have recommended space around all sides for proper ventilation?	95
11. Is the printer sitting on a level and stable surface?	95
12. Is recommended paper stock being used in the printer?	95
13. Does the customer use the printer as instructed in the OKI B6100 User Manual?	95
14. Are consumables, such as the CRU, replaced at recommended intervals?	95
Section 7 Contents	123
Section 8 - Diagnostic Mode Contents	125
1. Switch the printer power off.	127
2. Simultaneously press and hold the “Menu” and “Select” buttons.	127
3. Switch the printer power on.	127
4. When “Initializing” is displayed, release the “Menu” and “Select” buttons.	127
5. After a few seconds, Diagnostics will be displayed.	127
6. To exit Diagnostic Mode Menu and return to Ready, repeatability press Return or Cancel until R...	127
Table 1 . Output Tests	133
Table 2 . Input Tests	135
Table 3 . Alignment Menu	136
Table 4 . Maintenance Information	137
Table 5 . Operator Panel	138
Table 6 . Test Print	139
Section 9 - Adjustment Mode Contents	149
1. From the Ready condition, press Menu.	151
2. With Paper Menu displayed, press Select.	151
3. Use the Next Button to scroll down the list until Media Size/Type is displayed.	151
4. Press the Select Button. Front Tray will be displayed (this is the Multisheet Bypass Feeder).	151
5. Press the Select Button. Media Size will be displayed. Press Select. You will have a choice of...	151
6. Use the Next Button to display your choice and press Select.	151
7. Press the Return Button to return to the Media Size/Type Menu.	151
8. Press the Next Button until Media type is displayed, then press Select. You will have a choice...	151
9. Use the Next Button to display your choice and press Select.	151
10. Press the Return Button until Media Size/Type Menu is displayed.	151
11. Use the Next Button to display the next paper tray or feeder. Repeat steps 5 through 10 until...	151
12. When completed, press return a number of times until Ready is displayed	151
1. Enter the diagnostic menu. Use the Next Button to scroll down to the Test Print Menu press Sel...	152
2. With Default Source displayed, Press Select.	152
3. Use the Next Button to display the tray or feeder you wish to adjust, then press Select.	152
4. Press Return until Test Print/Default Source is displayed. Use the Next Button to scroll down ...	152
5. A Grid Page will be printed. Mark the page with the tray or feeder that was used.	152
6. Use the Next or Previous Button to scroll until Default Source is displayed. Press Select.	152
7. Repeat steps 3 through 6 until you have a grid test pattern from each tray or feeder. Then go ...	152
8. Compare the upper left corner of each document with Figure 1. Only the longest line on the lea...	152
9. If all test patterns meet specification, exit this procedure. If not, go to step 10.	152
10. Press Return until Diagnostics/Test Print is displayed. Use the Next / Previous Button to scr...	152
11. The alignment menu lists each tray/feeder and feed direction and scan direction. Use the Next...	152
12. The LCD will display the Tray and the direction and the value. The value can range from 0 to ...	153
13. Return to the Test Print Menu and run another Grid Pattern. Repeat steps 10 through 12 for ea...	153
Section 10 - Removal and Replacement Procedures Contents	155
Section 10 - Removal and Replacement Procedures Contents	156
Section 10 - Removal and Replacement Procedures Contents	157
Section 10 - Removal and Replacement Procedures Contents	158
Section 10 - Removal and Replacement Procedures (RRPs)	159
1. Switch OFF the main power.	159
2. Disconnect the AC power cord from the wall outlet, then start work.	159
3. Remove the Cassette Assy.	159
4. Open the Cover Front.	159
5. Remove the EP cartridge and store it at a dark and safety place free from direct sunlight.	159
6. In performing work for the FUSER ASSY periphery, wait until the FUSER ASSY and its periphery h...	159
7. Disconnect all interface cables from the rear panel of printer.	159
8. In performing work, to eliminate static electricity in your body, wear wristbands, etc. to tak...	159
Section 10 - Removal and Replacement Procedures continued	160
Section 10 - Removal and Replacement Procedures (RRPs) continued	161
RRP 1.1.1 Cover Left (PL1.1.1)	162
RRP 1.1.1 Cover Left (PL1.1.1) continued	163
1. Remove the Cover Assy I/F (RRP 1.1.2).	163
2. Remove the two screws securing the Cover Left to the printer.	163
3. Remove the Cover Left from the printer.	163
1. Align the Cover Left with its mount position on the printer.	163
2. Secure the Cover Left to the printer with two screws.	163
3. Mount the Cover Assy I/F (RRP 1.1.2).	163
RRP 1.1.2 Cover Assy I/F (PL1.1.2)	164
RRP 1.1.2 Cover Assy I/F (PL1.1.2) continued	165
1. Remove the two screws securing the Cover Assy I/F to the printer.	165
2. Remove the Cover Assy I/F from the printer.	165
1. Align the Cover Assy I/F with its mount position on the printer.	165
2. Secure the Cover Assy I/F to the printer with two screws.	165
RRP 1.1.3 Cover Option (PL1.1.4)	166
RRP 1.1.3 Cover Option (PL1.1.4) continued	167
1. Open the Cover Assy Rear.	167
2. Pushing two latches at the rear of Cover Option from the printer, release the latches from the...	167
3. Remove the Cover Option from the printer.	167
1. Align four bosses at the front of Cover Option with mounting holes in the Cover Assy Top (PL1....	167
2. Pushing the rear side of Cover Option, insert two latches of Cover Option into the Cover Assy ...	167
3. Close the Cover Assy Rear .	167
RRP 1.1.4 Cover Assy Top (PL1.1.5)	168
RRP 1.1.4 Cover Assy Top (PL1.1.5) continued	169
1. Remove the Cover Assy Front (RRP 1.1.8).	169
2. Remove the Cover Front L/H (RRP 1.1.10).	169
3. Open the Cover Assy Rear .	169
4. Remove the Cover Option (RRP 1.1.3).	169
5. Remove the four screws securing the Cover Assy Top to the printer.	169
6. Raising a little the Cover Assy Top from the printer, unplug the connector (P/J362) on the bac...	169
7. Remove the Cover Assy Top from the printer.	169
8. Remove the Control Assy Panel (RRP 1.1.5).	169
1. Mount the Control Assy Panel (RRP 1.1.6) on the Cover Assy Top (RRP 1.1.5).	169
2. Plug the connector (P/J362) on the back side of Control Assy Panel from the Cover Assy Top.	169
3. Align the Cover Assy Top with its mount position on the printer.	169
4. Secure the Cover Assy Top to the printer with four screws.	169
5. Mount the Cover Option (RRP 1.1.3).	169
6. Close the Cover Assy Rear .	169
7. Mount the Cover Front L/H (RRP 1.1.10).	169
8. Mount the Cover Assy Front (RRP 1.1.8).	169
RRP 1.1.5 Control Assy panel (PL1.1.6)	170
RRP 1.1.5 Control Assy Panel (PL1.1.6) continued	171
1. Remove the Cover Assy Front (RRP 1.1.8).	171
2. Remove the Cover Front L/H (RRP 1.1.10).	171
3. Open the Cover Assy Rear.	171
4. Remove the Cover Assy Top (RRP 1.1.4).	171
5. Remove the four screws securing the Control Assy Panel to the Cover Assy Top (PL1.1.5).	171
6. Remove the Control Assy Panel from the Cover Assy Top.	171
1. Align the Control Assy Panel with its mount position on the Cover Assy Top.	171
2. Secure the Control Assy Panel to the Cover Assy Top (PL1.1.5) with four screws.	171
3. Mount the Cover Assy Top (RRP 1.1.4).	171
4. Close the Cover Assy Rear .	171
5. Mount the Cover Front L/H (RRP 1.1.10).	171
6. Mount the Cover Assy Front (RRP 1.1.8).	171
RRP 1.1.6 Harness Assy Panel (PL1.1.7)	172
RRP 1.1.6 Harness Assy Panel (PL1.1.7) continued	173
1. Remove the Cover Assy Front (RRP 1.1.8).	173
2. Remove the Cover Front L/H (RRP 1.1.10).	173
3. Open the Cover Assy Rear.	173
4. Remove the Cover Assy Top (RRP 1.1.4).	173
5. Remove the Cover Assy Panel (PL1.1.5).	173
6. Unplug the connector (P/J363) of Harness Assy Panel from the Control Assy Panel (PL1.1.6), and...	173
1. Plug the connector (P/J363) of Harness Assy Panel to the Control Assy Panel (PL1.1.6), and mou...	173
2. Mount the Control Assy Panel(PL1.1.5).	173
3. Mount the Cover Assy Top (RRP 1.1.4).	173
4. Close the Cover Assy Rear .	173
5. Mount the Cover Front L/H (RRP 1.1.10).	173
6. Mount the Cover Assy Front (RRP 1.1.8).	173
RRP 1.1.7 Cover Right (PL1.1.8)	174
RRP 1.1.7 Cover Right (PL1.1.8) continued	175
1. Remove the Cover Assy Front (RRP 1.1.8).	175
2. Remove the Cover Front L/H (RRP 1.1.10).	175
3. Open the Cover Assy Rear .	175
4. Remove the Cover Assy Top (RRP 1.1.4).	175
5. Remove the four screws securing the Cover Right to the printer.	175
6. Disengage two hooks at the top of Cover Right from the holes in the printer.	175
7. Disengage two hooks at the bottom of Cover Right from the holes in the printer.	175
8. Remove the Cover Right.	175
1. Align the Cover Right with its mount position on the printer.	175
2. Engage four hooks of the Cover Right with the holes in the printer to lock.	175
3. Secure the Cover Right to the printer with four screws.	175
4. Mount the Cover Assy Top (RRP 1.1.4).	175
5. Close the Cover Assy Rear .	175
6. Mount the Cover Front L/H (RRP 1.1.9).	175
7. Mount the Cover Assy Front (RRP 1.1.8).	175
RRP 1.1.8 Cover Assy Front (PL1.1.9)	176
RRP 1.1.8 Cover Assy Front (PL1.1.9) continued	177
1. Open the Cover Assy Front (PL1.1.9).	177
2. Remove the hook of the Spring Front (PL 1.1.25) hangs the Joint Spring(PL 1.1.24) on the main ...	177
3. Move the tip of the Stopper Cover (PL 1.1.14)from the right side of the unit to the left side ...	177
4. Remove the KL clip that secures the left bearing bore of Cover Assy Front to the left stud of ...	177
5. From the Cover Right (PL1.1.8), remove the Stopper Cover that secures the Cover Assy Front to ...	177
6. Sliding the Cover Assy Front to the right from the printer, release the left and right bearing...	177
1. Aligning the left and right bearing bores of Cover Assy Front with the left and right studs of...	177
2. Fasten the tip of the Stopper Cover(PL 1.1.14) on the Cover Assy Front by a screw.	177
3. Set the tip of the Stopper Cover (PL 1.14)to the setting position placed right side of the uni...	177
4. Hang the hook of the Spring Front on the hole placed the right side of the unit.	177
5. Secure the left bearing bore of Cover Assy Front to the left stud of printer with the KL clip.	177
6. Close the Cover Assy Front.	177
RRP 1.1.9 Tray Assy MBF (PL1.1.17)	178
RRP 1.1.9 Tray Assy MBF (PL1.1.17) continued	179
1. Open the Cover Assy Front (PL1.1.9).	179
2. Remove the Cover Assy Front (RRP 1.1.8).	179
3. Disengage the Clip(PL1.1.22) that secures the Stopper Tray(PL1.1.16) to the Tray Assy MBF.	179
4. Face the Cover Assy Front toward the rear, insert a small screwdriver into a gap at the front ...	179
5. Insert a small screwdriver into a gap at the front left end between Cover Assy Front and Tray ...	179
6. Aligning the boss of Tray Assy MBF with a slit of Stopper Tray, remove the Tray Assy MBF from ...	179
1. Aligning the boss of Tray Assy MBF with a slit of Stopper Tray (PL1.1.16), mount the Tray Assy...	179
2. Face the Cover Assy Front toward the rear, insert the left boss of Tray Assy MBF into the left...	179
3. Insert a small screwdriver into a gap at the front right end between Cover Assy Front and Tray...	179
4. Secure the Stopper Tray to the shaft of Tray Assy MBF with the Clip(PL1.1.22).	179
5. Mount the Cover Assy Front (RRP 1.1.8).	179
6. Close the Cover Assy Front (PL1.1.9).	179
RRP 1.1.10 Cover Front L/H (PL1.1.19)	180
RRP 1.1.10 Cover Front L/H (PL1.1.19) continued	181
1. Remove the Cover Assy Front (RRP 1.1.8).	181
2. Remove the three screws securing the Cover L/H to the printer.	181
3. Disengage the upper left hook of Cover L/H, draw it a little toward the front from the printer.	181
4. Remove the Cover L/H from the printer.	181
1. Aligning the Cover L/H with its mount position to the printer.	181
2. Engage the hook of Cover L/H with a hole on the left side of Cover Assy Top to secure the Cove...	181
3. Secure the Cover L/H to the printer with three screws.	181
4. Mount the Cover Assy Front (RRP 1.1.8).	181
RRP 1.2.1 Cap Envelope (PL1.2.7)	182
RRP 1.2.1 Cap Envelope (PL1.2.7) continued	183
1. Open the Cover Assy Rear from the printer.	183
2. Draw the right Cap Envelope secured to the Chute Assy Face Up (PL1.2.8) from the Cover Assy Re...	183
3. Draw the left Cap Envelope secured to the Chute Assy Face Up from the Cover Assy Rear.	183
1. Mount the Cap Envelope on the right hole in the Chute Assy Face Up (PL1.2.8) of the Cover Assy...	183
2. Mount the Cap Envelope on the left hole in the Chute Assy Face Up of the Cover Assy Rear.	183
3. Close the Cover Assy Rear.	183
RRP 1.2.2 Stopper (PL1.2.10)	184
RRP 1.2.2 Stopper (PL1.2.10) continued	185
1. Remove the Cover Assy Rear (RRP1.2.3)	185
2. Remove the one screw securing the Stopper to the printer.	185
3. Remove the Stopper to the printer.	185
1. Align the Stopper with its mount position to the printer.	185
2. Secure the Stopper to the printer with one screw.	185
3. Mount the Cover Assy Rear (RRP1.2.3).	185
RRP 1.2.3 Cover Assy Rear(Standard) (Reference Only)	186
RRP 1.2.3 Cover Assy Rear(Standard) (Reference Only) continued	187
1. Open the Cover Assy Rear from the printer.	187
2. Draw the lead edge of Stopper (PL1.2.10) secured to the Cover Assy Rear off the hole in the Co...	187
3. Pull upward to unlock the Stopper Pivot R (PL1.2.9) that secures the left Cover Assy Rear to t...	187
4. Sliding the Cover Assy Rear to the left, release the bearing bores of Cover Assy Rear from the...	187
1. Align the left and right bearing bores of Cover Assy Rear with the left and right bosses on th...	187
2. Sliding the Cover Assy Rear to the right, mount it on the printer.	187
3. Secure the left side of Cover Assy Rear to the printer with the Stopper Pivot R (PL1.2.9).	187
4. Insert the lead edge of Stopper (PL1.2.10) into a hole in the Cover Assy Rear.	187
5. Close the Cover Assy Rear.	187
RRP 1.2.4 Chute Assy Face Up (PL1.2.8)	188
RRP 1.2.4 Chute Assy Face Up (PL1.2.8) continued.	189
1. Remove the Cover Assy Rear Face Up (RRP 1.2.3).	189
2. Remove the two screws securing the Chute Assy Face Up to the Cover Assy Rear.	189
3. Remove the Chute Assy Face Up from the Cover Assy Rear.	189
1. Engage the right hole in the Chute Assy Face Up with a boss of Arm Direction (PL1.2.6) on the ...	189
2. Adjust the Chute Assy Face Up to the setting position of the Cover Assy Rear Face Up,and then ...	189
3. Mount the Cover Assy Rear Face Up (RRP 1.2.3).	189
RRP 2.1.1 Cassette Assy (PL2.1.1)	190
RRP 2.1.1 Cassette Assy (PL2.1.1) continued	191
1. Draw the Cassette Assy from the printer.	191
1. Aligning the position exactly, insert the Cassette Assy into the printer.	191
RRP 2.2.1 Clutch Assy Friction (PL2.2.7)	192
RRP 2.2.1 Clutch Assy Friction (PL2.2.7) continued	193
1. Draw the Cassette Assy (PL2.1.1) from the printer.	193
2. Release the left and right latches of Cassette Assy that secures the Chute Retard Base L (PL2....	193
3. Open the Chute Retard (PL2.2.4) together with Chute Retard Base L and Chute Retard Base R from...	193
4. Remove the Roll Assy (RRP 2.2.2).	193
5. Draw the Clutch Assy Friction of the shaft of Shaft Assy Retard (PL2.2.6) from the Cassette Assy.	193
1. Align the position of Clutch Assy Friction with the shaft of Shaft Assy Retard (PL2.2.6) in th...	193
2. Insert the Clutch Assy Friction into the shaft of Shaft Assy Retard.	193
3. Mount the Roll Assy (RRP 2.2.2).	193
4. Close the Chute Retard (PL2.2.4) together with Chute Retard Base L (PL2.2.3) and Chute Retard ...	193
5. Secure the Chute Retard Base L and Chute Retard Base R with the left and right latches from th...	193
6. Mount the Cassette Assy to the printer (RRP 2.1.1).	193
RRP 2.2.2 Roll Assy (PL2.2.8)	194
RRP 2.2.2 Roll Assy (PL2.2.8) continued	195
1. Draw the Cassette Assy (PL2.1.1) from the printer.	195
2. Release the left and right latches of Cassette Assy that secures the Chute Retard Base L (PL2....	195
3. Open the Chute Retard (PL2.2.4) together with Chute Retard Base L and Chute Retard Base R from...	195
4. Unhook the Roll Assy secured to the groove of Shaft Assy Retard (PL2.2.6) from the Cassette Assy.	195
5. Draw the Roll Assy from Shaft Assy Retard.	195
1. Aligning the position exactly, mount the Roll Assy on the Shaft Assy Retard (PL2.2.6) in the C...	195
2. Hook the Roll Assy to the groove of Shaft Assy Retard.	195
3. Close the Chute Retard (PL2.2.4) together with Chute Retard Base L (PL2.23) and Chute Retard B...	195
4. Secure the Chute Retard Base L and Chute Retard Base R with the left and right latches of Cass...	195
5. Mount the Cassette Assy to the printer (RRP2.1.1).	195
RRP 2.2.3 Spring Retard (PL2.2.10)	196
RRP 2.2.3 Spring Retard (PL2.2.10) continued	197
1. Draw the Cassette Assy (PL2.1.1) from the printer.	197
2. Release the left and right latches of Cassette Assy that secures the Chute Retard Base L (PL2....	197
3. Open the Chute Retard (PL2.2.4) together with Chute Retard Base L and Chute Retard Base R from...	197
4. Open the Bracket Retard (PL2.2.9) from the Cassette Assy.	197
5. Remove the Spring Retard from the Cassette Assy.	197
1. Align the Spring Retard with the specified mount position on the Cassette Assy (PL2.1.1), and ...	197
2. Close the Bracket Retard (PL2.2.9) from the Cassette Assy.	197
3. Close the Chute Retard (PL2.2.4) together with Chute Retard Base L (PL2.23) and Chute Retard B...	197
4. Secure the Chute Retard Base L and Chute Retard Base R with the left and right latches from th...	197
5. Mount the Cassette Assy to the printer (RRP 2.1.1).	197
RRP 2.2.4 Motor Assy (PL2.2.22)	198
RRP 2.2.4 Motor Assy (PL2.2.22) continued	199
1. Draw the Cassette Assy (PL2.1.1) from the printer.	199
2. Remove the two screws securing the Holder L (PL2.2.21) to the Cassette Assy.	199
3. Remove the Spring Motor(PL2.2.19) with Holder L from the Cassette Assy.	199
4. Remove the two screws securing the Holder R (PL2.2.20) to the Cassette Assy.	199
5. Remove the Spring Motor with Holder R from the Cassette Assy.	199
6. Unplug the connector (P/J673) of the Motor Assy from the Connector (PL2.2.25) of Cassette Assy.	199
7. Remove the three screws securing the Motor Assy to the Cassette Assy.	199
8. Remove the Motor Assy from the Cassette Assy.	199
1. Engaging the groove at a rotational part of Motor Assy with the boss of Shaft Assy Tongue (PL2...	199
2. Secure the Motor Assy to the Cassette Assy with three screws.	199
3. Plug the connector (P/J673) of the Motor Assy from the Connector (PL2.2.25) of Cassette Assy.	199
4. Adjust the Holder R(PL2.2.20) with Spring Motor(PL2.2.19) to the replacement position of the C...	199
5. Fix the Holder R to the Cassette Assy(two screws).	199
6. Adjust the Holder L(PL2.2.21) with Spring Motor to the replacement position of the Cassette Assy.	199
7. Fix the Holder L to the Cassette Assy(two screws).	199
8. Mount the Cassette Assy to the printer (RRP 2.1.1).	199
RRP 2.2.5 Connector(PL2.2.25) and Guide Socket(PL2.2.27)	200
RRP 2.2.5 Connector(PL2.2.25) and Guide Socket(PL2.2.27) continued	201
1. Draw the Cassette Assy (PL2.1.1) from the printer.	201
2. Remove the two screws securing the Holder L (PL2.2.21) to the Cassette Assy.	201
3. Remove the Spring Motor(PL2.2.19) with Holder L from the Cassette Assy.	201
4. Unplug the connector (P/J673) of the Motor Assy (PL2.2.22)from the Connector.	201
5. Remove the two screws securing the Guide Socket to the Cassette Assy.	201
6. Remove the Guide Socket together with Connector from the Cassette Assy.	201
7. Remove the Spring (RRP 2.2.26).	201
8. Sliding the Connector upward, disconnect it from the Guide Socket.	201
1. Aligning the Connector with the rail of Guide Socket, slide the Connector downward to connect.	201
2. Mount the Spring (RRP 2.2.26).	201
3. Aligning the position exactly, mount the Guide Socket together with Connector on the Cassette ...	201
4. Secure the Guide Socket to the Cassette Assy with two screws.	201
5. Plug the connector (P/J673) of the Motor Assy (PL2.2.22)to the Connector.	201
6. Aligning the position exactly, mount the Holder L together with Spring Motor to the Cassette A...	201
7. Secure the Holder L to the Cassette Assy with two screws.	201
8. Mount the Cassette Assy to the printer (RRP 2.1.1).	201
RRP 2.2.6 Spring (PL2.2.26)	202
RRP 2.2.6 Spring (PL2.2.26) continued	203
1. Draw the Cassette Assy (PL2.1.1) from the printer.	203
2. Remove the two screws securing the Holder L (PL2.2.21) to the Cassette Assy.	203
3. Remove the Spring Motor(PL2.2.19) with Holder L from the Cassette Assy.	203
4. Remove the Guide Socket (RRP 2.2.5).	203
5. Remove the Spring from the Cassette Assy.	203
1. Mount a Spring to the boss of Cassette Assy (PL2.1.1).	203
2. Mount the Guide Socket (RRP 2.2.5).	203
3. Aligning the position exactly, mount the Holder L together with Spring Motor to the Cassette A...	203
4. Secure the Holder L to the Cassette Assy with two screws.	203
5. Mount the Cassette Assy to the printer (RRP2.1.1).	203
RRP 3.1.1 Roll Assy Turn (PL3.1.1)	204
RRP 3.1.1 Roll Assy Turn (PL3.1.1) continued	205
1. Remove the Cover Assy Front (RRP 1.1.8).	205
2. Remove the Cover Front L/H (RRP 1.1.10).	205
3. Remove the Chute MBF Assy (RRP 4.1.1).	205
4. Remove the Cover Assy L/F (RRP 1.1.2).	205
5. Remove the Cover Left (RRP 1.1.1).	205
6. Remove the Cover Assy Top (RRP 1.1.4).	205
7. Remove the Cover Right (RRP 1.1.7).	205
8. Remove the Plate Assy Left (RRP 9.1.1).	205
9. Remove the Plate Handle (RRP 9.1.3).	205
10. Remove the PWBA HKB PS (RRP 10.1.9).	205
11. Remove the Feeder (RRP 3.1.10).	205
12. Unplug the connector (P/J641)on the Clutch Assy Turn (PL3.1.2) from the Feeder.	205
13. Remove the four screws securing the Roll Assy Turn to the Feeder.	205
14. Remove the Roll Assy Turn together with Spring Extension (PL3.1.3) and Spring Chute (PL3.1.4)...	205
15. Remove the Spring Chute (RRP 3.1.2).	205
16. Unhook the left Spring Extension from two notches of Roll Assy Turn, and remove the Spring Ex...	205
17. Unhook the right Spring Extension from two notches of Roll Assy Turn, and remove the Spring E...	205
RRP 3.1.1 Roll Assy Turn (PL3.1.1) continued	206
1. Hook the Spring Extension (PL3.1.3) to two notches on the right side of Roll Assy Turn to secu...	206
2. Hook the Spring Extension (PL3.1.3) to two notches on the left side of Roll Assy Turn to secur...	206
3. Mount the Spring Chute (RRP 3.1.2).	206
4. Align the Roll Assy Turn, together with the Spring Extension and Spring Chute, to the Feeder.	206
5. Secure the Roll Assy Turn to the Feeder with four screws.	206
6. Plug the connector (P/J641) to the Clutch Assy Turn (PL3.1.12) from the Feeder.	206
7. Mount the Feeder (RRP 3.1.10).	206
8. Mount the PWBA HKB PS (RRP 10.1.9).	206
9. Mount the Plate Handle (RRP 9.1.3).	206
10. Mount the Plate Assy Left (RRP 9.1.1).	206
11. Mount the Cover Right (RRP 1.1.7).	206
12. Mount the Cover Assy Top (RRP 1.1.4).	206
13. Mount the Cover Left (RRP 1.1.1).	206
14. Mount the Cover Assy I/F (RRP 1.1.2).	206
15. Mount the Chute MBF Assy (RRP 4.1.1).	206
16. Mount the Cover Front L/H (RRP 1.1.10).	206
17. Mount the Cover Assy Front (RRP 1.1.8).	206
RRP 3.1.1 Roll Assy Turn (PL3.1.1) continued	207
RRP 3.1.2 Spring Chute (PL3.1.4)	208
RRP 3.1.2 Spring Chute (PL3.1.4) continued	209

Match case Limit results 1 per page

5-4

OKI B6100 Laser Printer - Base Engine Technical Manual

Version 1.0

Primary FIPs:Image Quality Problems

Use Letter–size or A4 paper when troubleshooting an image quality problem.

Image Quality FIPs assume there is no malfunction of the printer controller. Use Printing Test Mode to

determine whether an image quality problem is being caused by the printer engine or by the printer control-

ler. The printer engine generates the test print. If the test print is normal, but the regular prints have a

image quality problem, the problem may be with the printer controller.

If you are unable to solve the image problem using the Image Quality FIPs, we recommend that you

replace the printer controller with a known good controller. If the problem still persists, we recommend you

replace each component listed in Initial Analysis of the problem FIP, one by one, until you solve the prob-

lem.