Xerox N2125N - DocuPrint B/W Laser Printer, Service Manual

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02/2000

2-39

DocuPrint N2125

RAP 43 , RAP 44

Status Indicator Repair Analysis Procedures

Initial Issue

RAP 43 HVPS Assembly

Procedure

Open the Front Cover. Remove the Print Cartridge. Inspect all contacts on the Transport Chute
Assembly and the terminals on the Print Cartridge. The terminals are in good condition and
contacting properly when the cartridge is installed.
Y

N
Replace the Transport Chute Assembly (

) or the Print Cartridge (

) as nec-

essary.

Cheat the Front Cover Interlock Switch. Enter Diagnostics and select Component Test. Scroll to
each of the high voltage tests (

). Measure the voltage between the contact listed and

frame ground. Press the Enter Key.

At least one of the voltages is correct.
Y

N
Switch the printer power off. Remove the Left Interface Cover (

), Left Cover (

), and the Left Plate Assembly (

). Switch the printer power on. On the Print

Engine Controller PWB, check the voltage between P/J26 pin 2 and frame ground. The
voltage is +24VDC.
Y

N
Replace the Print Engine Controller PWB (

).

Replace the HVPS (

).

All the voltages are correct.
Y

N
Replace the Print Engine Controller PWB (

). Cheat the Front Cover Interlock

Switch. Enter Diagnostics and select Component Test. Scroll to each of the high voltage
tests (

). Measure the voltage between the contact listed and frame ground. Press

the Enter Key. All the voltages are correct.
Y

N
Check the Transport Chute Assembly for proper installation. Check the HVPS har-
ness for proper connection and for damage. If everything is OK, Replace the HVPS
(

)

Problem Solved.

Problem solved.

RAP 44 Electrical Noise

Procedure

Check if there is other electrical equipment, such as electrical generators, radio transmitters, or
devices using electrical motors, within ten feet of the printer. Shut off the other electrical equip-
ment, or relocate the printer at least twenty feet away from other devices. The Electrical
Noise problem is still present.
Y

N
Problem solved.

Check the AC wall outlet and power cord (see

). The AC wall outlet is correctly wired

and grounded.
Y

N
Inform the customer of insufficient voltage or improper wiring. A licensed electrician must
correct the wiring.

Open the Front Cover. Remove the Print Cartridge. Inspect all contacts on the Transport Chute
Assembly and the terminals on the Print Cartridge. The terminals are in good condition and
contacting properly when the cartridge is installed.
Y

N
Replace the Transport Chute Assembly (

) or the Print Cartridge (

) as nec-

essary.

Remove the Left Interface Cover (

). Inspect the grounding screw and wire connected

to the Main Power Connector. The cable is grounded properly.
Y

N
Attach the grounding screw properly.

Replace the Print Cartridge (

). The Electrical Noise problem is still present.

Y

N
Problem solved.

Remove the Fuser Assembly (

). Remove the end covers (see

). Inspect the

cables of the Heater Rod. The cables are attached properly.
Y

N
Attach the cables properly or replace the Fuser Assembly (

).

Disconnect the HVPS (P/J26) from the Print Engine Controller PWB. Run 20 Test Prints (the
prints will be blank). The Test Prints run normally.
Y

N
Replace the Print Engine Controller PWB (

). The problem is still present.

Y

N
Problem solved.

Inspect all of the grounds in the printer. All the grounds are securely connected.
Y

N
Repair the bad grounds.

Replace the following components one at a time until the cause of the problem is found.
•

HVPS PWB Assembly (

).

•

Print Engine Controller PWB (

).

Table 1 High Voltage Power Supply Readings

High Voltage Test

Contact

Reading

Charge Roll DC

Rear Transport Chute Pin Contact -425 ±40 VDC

Charge Roll AC

Rear Transport Chute Pin Contact 1000 ± 100 VAC

Dev Bias DC

Front Transport Chute Pin C7.3 ± 3 VDC

Dev Bias AC

Front Transport Chute Pin Contact 555 ± 55 VAC

BTR -

BTR Roll Bushing

-81 ± 8 VDC

BTR +

BTR Roll Bushing

0 VDC

Detack Saw

Detack Saw

-930 ± 100 VDC

A

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Summary of Contents for N2125N - DocuPrint B/W Laser Printer

Page 1: ...nter Service Manual 721P52390 February 2000 This Service Manual contains information that applies to the DocuPrint N2125 Laser Printer CAUTION These components are susceptible to electrostatic dischar...

Page 2: ...he laser and output of the laser scanner unit produces a beam that if looked into could cause eye damage Service procedures must be followed exactly as written without change When servicing the machin...

Page 3: ...tion Contents 4 1 Parts List 5 1 Section Contents 5 1 General Procedures 6 1 Section Contents 6 1 Wiring Data 7 1 Section Contents 7 1 Introduction The DocuPrint N2125 Service Manual is the primary do...

Page 4: ...ify the type of defect that exists the test pattern to use and actions required to correct the defects Section 4 Repair Adjustment This section contains the instructions for removal replacement and ad...

Page 5: ...device Operation of the equipment in a residential area may cause unacceptable interference to radio and TV reception requiring the operator to take whatever steps are necessary to correct the interfe...

Page 6: ...Standards set by the United States Department of Health and Human Services as a Class 1 product This means that it is a laser product that does not emit dangerous laser radiation during any mode of c...

Page 7: ...0 3 12 2 2000 3 13 2 2000 3 14 2 2000 3 15 2 2000 3 16 2 2000 3 17 2 2000 3 18 2 2000 3 19 2 2000 3 20 2 2000 3 21 2 2000 3 22 2 2000 3 23 2 2000 3 24 2 2000 3 25 2 2000 3 26 2 2000 4 1 2 2000 4 2 2 2...

Page 8: ...0 6 19 2 2000 6 20 2 2000 6 21 2 2000 6 22 2 2000 6 23 2 2000 6 24 2 2000 6 25 2 2000 6 26 2 2000 6 27 2 2000 6 28 2 2000 6 29 2 2000 6 30 2 2000 6 31 2 2000 6 32 2 2000 6 33 2 2000 6 34 2 2000 6 35 2...

Page 9: ...DocuPrint N2125 Revision Control List 02 2000 x Page Revision Page Revision Page Revision Page Revision Page Revision Page Revision Initial Issue...

Page 10: ...ice Call Procedures Initial Issue 1 Service Call Procedures 1 0 Introduction 1 3 1 1 Machine Orientation 1 3 1 2 Call Flow 1 4 1 3 Initial Actions 1 5 1 4 Corrective Actions 1 5 1 5 Final Actions 1 7...

Page 11: ...02 2000 1 2 DocuPrint N2125 Initial Issue Service Call Procedures...

Page 12: ...onse will lead you to the next step A No response will indicate the next step to perform or will direct you to a Repair Analysis Procedure RAP RAPs will provide the instructions to isolate the faulty...

Page 13: ...anual sections as follows Section 1 Initial Actions Corrective Actions and Final Actions Section 2 Status Indicator Repair Analysis Procedures RAPs Section 3 Image Quality Repair Analysis Procedures I...

Page 14: ...e the fre quency of a problem Access the Error Code Tables Table 1 or Table 2 and perform the corrective action as instructed 12 If the Fault History can not be printed the fault history can be displa...

Page 15: ...able 1 of section 2 If a Offset Catch Tray OCT is installed run at least 5 prints to the OCT GP 2 5 for test print If an OCT is not installed follow the Y path Prints were successfully delivered to th...

Page 16: ...tasks 4 Clean the covers and ensure all labels are readable 5 Switch the printer power on If any of the customer selections were changed return them to the customer s preferred settings 6 Run final p...

Page 17: ...02 2000 1 8 DocuPrint N2125 1 5 Initial Issue Service Call Procedures...

Page 18: ...ssembly 2 32 RAP 31 Fuser Assembly 2 32 RAP 32 Registration Sensor 2 33 RAP 33 MBF No Paper Sensor 2 34 RAP 34 Tray 1 No Paper Sensor 2 34 RAP 35 Standard Bin Stack Full Sensor 2 35 RAP 36 Print Cartr...

Page 19: ...02 2000 2 2 DocuPrint N2125 Initial Issue Status Indicator Repair Analysis Procedures...

Page 20: ...late a problem to a specific component or subassembly excluding the wire harnesses In the Y N Yes No steps of the RAPs a Yes No response will either lead you to the next step or will indicate a correc...

Page 21: ...02 2000 2 4 DocuPrint N2125 Introduction Measurements Initial Issue Status Indicator Repair Analysis Procedures...

Page 22: ...Top Tray Full Top Tray is declared full when 5 prints are delivered to the top tray after the Full Stack Sensor is actuated Empty Top Tray Go to RAP 6 Tray 1 Empty No Fault Entry C5 Tray 1 Add Pap Tr...

Page 23: ...Open Tray 1 Open Front Cover Clear Paper Path Go to RAP 8 Tray 2 Misfeed with 550 Sheet Feeder installed as Tray 2 Tray 2 Jam Open Tray 2 E2 12 E2 1 Feed Jam Paper does not arrive at Registration Sens...

Page 24: ...Front Cover Clear Paper Path Go to RAP 56 Paper Jam Open Rear Cover E7 1 E7 1 Duplex Jam Paper late to Duplex Sensor Open the Rear Cover Remove Duplex Unit Clear Paper Path Go to RAP 56 Duplex Jam 3...

Page 25: ...memory format required Go to RAP 9 Motor Failure Power Off On U1 U1 Motor Fail Motor Fail signal is declared 1 3 sec onds after start of Main Motor Power Off and On Go to RAP 16 Laser Failure Power Of...

Page 26: ...ontroller parallel port failure USB port failure E Net Port Failure Replace System Controller PWB REP 9 2 1000 IOT 8 System Controller IOT handshake failure Remove and reinstall the System Controller...

Page 27: ...02 2000 2 10 DocuPrint N2125 Error Code Tables Initial Issue Status Indicator Repair Analysis Procedures...

Page 28: ...he AC voltage between AC Line and Neutral between AC Line and Ground and between AC Neutral and Ground The voltage between Line and Neutral and between Line and Ground is 90 to 140 VAC and the voltage...

Page 29: ...eplace the LVPS REP 9 5 Problem Solved Measure the voltage between LVPS P J281 pin 1 and frame ground The voltage is 24VDC Y N On the LVPS measure the voltage between P J284 pin 2 and frame ground The...

Page 30: ...es listed in Table 1 All voltages are correct Y N Replace the Print Engine Controller PWB REP 9 3 Switch the printer power off Reconnect P J23 Switch the printer power on Measure the voltages listed i...

Page 31: ...tween the two pins Y N Repair or replace the Paper Feeder Socket Replace the following parts one at a time until the problem is resolved Stack Height Sensor 3 4 Feeder PWB 3 9 Size 1 PWB 3 13 Print En...

Page 32: ...crements each time you press and release the actuator Y N Go to RAP 34 Replace the Print Engine Controller PWB REP 9 3 Check the paper level in Tray 2 3 There is paper in the Tray Y N Load paper into...

Page 33: ...5 Replace Print Engine Controller PWB REP 9 3 Remove the paper stack RAP 7 MBF Misfeed E2 Paper arrives early or late to the Registration Sensor Procedure Switch the printer power off Open the Front C...

Page 34: ...leted sucess fully Y N Remove the tray currently in feeder 2 Check the Nudger and Feed Rolls in feeder 2 for contamination and wear The Feed Rolls are clean and in good condition Y N Replace the Feed...

Page 35: ...the Duplex unit if installed Open the Fuser Access Cover Check for contamination paper scraps or other obstructions The paper path is clean and free of obstructions Y N Clean components and remove all...

Page 36: ...other obstructions The paper path is clean and free of obstructions Y N Remove obstructions and clean components as necessary Enter Diagnostics and select Test Print Run 25 prints from Tray 1 When the...

Page 37: ...Disconnect P J30 from the Print Engine Controller PWB Measure the resistance between pins 1 and 2 on the discon nected plug as you open and close the Rear Cover There is continuity when the Rear Cover...

Page 38: ...u insert the cartridge and no continuity when you remove the cartridge Y N The Print Cartridge is a Xerox N2125 Print Cartridge Y N Replace Print Cartridge with a Xerox N2125 Print Cartridge PL 8 1 Re...

Page 39: ...he Fuser Assembly REP 6 2 Manually rotate the rotor of the Motor clock wise The rotor of the Main Motor rotates smoothly Y N Remove the Main Motor REP 8 1 Manually rotate the rotor of the Motor clock...

Page 40: ...g password 0734 Check the value for Print Resolu tion and for Laser Power The value for Resolution is 02 and for Laser Power is 8 Y N Replace the Print Engine Controller PWB REP 9 3 Select Component T...

Page 41: ...times The U6 Error Code reappears Y N Problem Solved Enter Diagnostics and select NVM Config password 0734 It is possible to enter into the NVM Config Y N Replace the Print Engine Controller PWB REP 9...

Page 42: ...and frame ground Press the Enter key The voltage changes from 0 8VDC to 0 0VDC when you press the Enter key Y N Replace the Print Engine Controller PWB REP 9 3 Replace the LVPS REP 9 5 Replace the Fa...

Page 43: ...rocedure Run a Test Print Inspect the print quality The print is light Y N Return to Initial Actions Replace the Print Cartridge PL 8 1 Run 5 test prints Config Sheet or Demo Page and inspect the prin...

Page 44: ...wer and checking for 3 3VDC on P J13 between pins 1 and 2 after each one is installed Replace the option just installed when the voltage fails On the System Controller PWB check the voltage on P J13 b...

Page 45: ...Reconnect P J18 to the System Controller PWB Switch the printer power on Check the voltages between the pins listed in Table 1 and frame ground All the voltages listed in the column with P J18 connec...

Page 46: ...the Control Panel Assembly PL 1 1 Replace the System Controller PWB REP 9 2 RAP 27 Erratic Printer Operation Procedure Disconnect all host cables Enter diagnostics and select Test Print Run 15 to 20...

Page 47: ...7 P J34 Duplex PWB REP 12 4 P J33 Size 1 PWB REP 3 13 P J22 Laser REP 7 4 P J21 Laser REP 7 4 P J23 Connector PWB REP 9 7 P J31 Stack Full Sensor REP 6 6 P J30 Rear Interlock Switch REP 9 10 P J25 Pri...

Page 48: ...g or replace the Rear Interlock Switch REP 9 10 Replace the Print Engine Controller PWB REP 9 3 The voltage on pin 7 is correct Y N On the Print Engine Controller PWB check the voltage between P J28 p...

Page 49: ...5 Check the voltage between P J25 pin 3 and frame ground The voltage is 5 0VDC Y N Go to RAP 36 Replace the Print Engine Controller PWB REP 9 3 Measure the voltage between P J21 pin 9 and frame groun...

Page 50: ...P 1 1 Left Cover REP 1 2 and the Left Plate Assembly REP 1 11 Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J23 pin 11 and frame ground The voltage is 3...

Page 51: ...the MBF No Paper Sensor REP 4 8 Replace the Connector PWB REP 9 7 Replace the Print Engine Controller PWB REP 9 3 It appears that the MBF No Paper Sensor is working correctly If a problem persists rep...

Page 52: ...Procedure Open the Front Cover and remove the Print Cartridge Inspect the tab on the top of the Print Cartridge that actuates the Print Cartridge Sensor Assembly The tab on the Print Cartridge is int...

Page 53: ...t Test Scroll to Confirm Reg Clutch and press Enter You can hear the Registration Clutch energize Y N Switch the printer power off Remove the Left Interface Cover REP 1 1 Left Cover REP 1 2 and the Le...

Page 54: ...erking Y N Replace the Turn Roll Assembly REP 3 2 Replace the Turn Roll Clutch REP 3 2 If the problem persists replace the Print Engine Con troller PWB REP 9 3 RAP 40 Tray 1 Feed Clutch Procedure NOTE...

Page 55: ...eed Solenoid REP 4 9 Switch the printer power off Open the Front Cover and remove the Print Cartridge With the Front Cover open cheat the Front Cover Interlock Enter Diagnostics and select Component T...

Page 56: ...y feet away from other devices The Electrical Noise problem is still present Y N Problem solved Check the AC wall outlet and power cord see RAP 1 The AC wall outlet is correctly wired and grounded Y N...

Page 57: ...ode reappears Y N Switch the printer power off Install the removed DIMM in Slot 2 bottom DIMM slot Switch the printer power on The error code reappears Y N Switch the printer power off Remove DIMM fro...

Page 58: ...e System Controller PWB REP 9 2 Replace the DIMM installed in slot 3 with a new DIMM PL 10 1 Replace the System Controller PWB REP 9 2 RAP 47 DIMM 3 0103 Procedure Switch the printer power off Remove...

Page 59: ...off Open the Rear Cover and manually rotate the Exit Chute Assem bly The Exit Chute rotates without binding Y N Remove the Exit Chute Assembly REP 6 4 Repair or replace components as necessary PL 7 1...

Page 60: ...Unit installed Y N Replace the Print Engine Controller PWB REP 9 3 Check the Face Up Tray Sensor Actuator on the Rear Cover The actuator is in good condi tion Y N Replace the Rear Cover REP 1 8 Cheat...

Page 61: ...02 2000 2 44 DocuPrint N2125 RAP 50 RAP 51 Initial Issue Status Indicator Repair Analysis Procedures...

Page 62: ...Engine Controller PWB REP 9 3 Replace the Print Engine Controller PWB REP 9 3 RAP 53 550 Sheet Feeder Feed Clutch The 550 Sheet Feeder is not feeding paper or not feeding paper at the correct time Pro...

Page 63: ...s inserted into the feeder The mating connectors are properly connected when the paper tray is inserted Y N Repair or replace components as necessary Replace the Tray 1 Size PWB REP 3 13 If the proble...

Page 64: ...structions from the printer Check the Duplex Belt Rollers and gears Check for contamination wear and obstructions The Duplex rollers gears and belt are clean and in good condition Y N Replace componen...

Page 65: ...02 2000 2 48 DocuPrint N2125 RAP 55 RAP 56 Initial Issue Status Indicator Repair Analysis Procedures...

Page 66: ...cs and select Component Test Scroll to OCT Motor Operation On the Print Engine Controller PWB check the volt age between P J35 pin 6 and frame ground Press Enter The voltage drops from 3 3VDC to 0 5VD...

Page 67: ...59 Remove Output From Offset Bin C5 Error code indicates the output tray is full Procedure There is a paper stack in the offset bin actuating the Stack Full Sensor Y N The paper is curled Y N Lift and...

Page 68: ...e Print Engine Controller PWB Switch the printer power on On the Print Engine Controller PWB measure the voltage between P J35 pin 2 and frame ground There is 3 3VDC between P J35 pin 2 and frame grou...

Page 69: ...02 2000 2 52 DocuPrint N2125 RAP 60 RAP 61 Initial Issue Status Indicator Repair Analysis Procedures...

Page 70: ...eplace the Envelope Connector Assembly REP 4 10 Replace the Envelope Feeder PWB REP 13 3 Replace the Envelope Feeder PWB REP 13 3 Problem solved RAP 63 Envelope Feed Clutch Procedure Enter Diagnostics...

Page 71: ...ists replace the Envelope Feeder No Paper Sensor REP 13 10 Replace the Print Engine Controller PWB REP 9 3 Replace the Print Engine Controller PWB REP 9 3 RAP 65 Load Envelope C5 Procedure Enter Diagn...

Page 72: ...r the clutch energize Y N Go to RAP 63 Scroll to Main Motor Operation and press Enter Scroll to Confirm EBF Clutch Watch the Feed Belts and Feed Rollers and press Enter The Feed Belts and Feed Rollers...

Page 73: ...02 2000 2 56 DocuPrint N2125 RAP 66 Initial Issue Status Indicator Repair Analysis Procedures...

Page 74: ...mears 3 10 Spots 3 10 Other Print Defects 3 11 IQ RAP 1 Light Undertoned Prints 3 11 IQ RAP 2 Blank Prints 3 12 IQ RAP 3 Spots 3 13 IQ RAP 4 Horizontal Deletions 3 14 IQ RAP 5 Vertical Deletions 3 15...

Page 75: ...02 2000 3 2 DocuPrint N2125 Initial Issue Image Quality Repair Analysis Procedures...

Page 76: ...quality issues After resolving an image quality problem return to Image Quality Checkout to verify that no other image quality defects exist Sample reproductions of the various image quality patterns...

Page 77: ...s bands in the direction of scan IQ RAP 8 RESIDUAL IMAGES The image from a previous print which was not removed during the cleaning process has been developed on the current print IQ RAP 9 BLACK PRINT...

Page 78: ...e 5 prints of the System Controller Test Print Figure 1 Discard the first two prints and retain the remaining prints for image quality analysis The Image quality Checkout is used to evaluate the follo...

Page 79: ...ity is uniform Y N Go to IQ RAP 12 Uneven Density The prints are too faint Y N The prints are black Y N Go to IQ RAP 11 Background Go to IQ RAP 10 Black Prints Go to IQ RAP 1 Light Prints The Solid Ar...

Page 80: ...P 5 Vertical Deletions Figure 1 Line Band or Spot Deletions Fusing Procedure NOTE The operating environment of the printer is from 41 F 5 Celsius at 15 relative humidity to 95 F 35 Celsius at 85 relat...

Page 81: ...the corners should be uniform in appear ance The three checks arrows 1 2 3 are within specification Y N Go to IQ RAP 18 Resolution The printed test patterns meet the Resolution specification Go to the...

Page 82: ...AP 15 Registration The printed test patterns meet the lead edge to trail edge registration specification Go to Skew Figure 1 Registration Lead Edge to Trail Edge Skew Procedure Enter Diagnostics and s...

Page 83: ...re 1 Skips Smears Spots Procedure From the menu mode run a Config Sheet Inspect the print for spots Figure 1 Within a 208 x 95 mm square There should be no spots larger than or equal to 0 5 mm visible...

Page 84: ...artridge Check that the Print Cartridge ground contact points are clean Ensure there are no obstructions in the Laser path Procedure Load fresh dry paper Run a test print The image density meets speci...

Page 85: ...he output print Figure 1 Figure 1 Blank Prints Initial Actions Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check tha...

Page 86: ...solved IQ RAP 3 Spots There are spots of toner randomly scattered on the page Figure 1 Figure 1 Spots Initial Actions Check that the paper supply is clean dry and fresh recycled paper may have spots...

Page 87: ...ons extend across the page Figure 1 Figure 1 Horizontal Deletions Initial Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and...

Page 88: ...Cartridge Side Guide REP 7 5 BTR Assembly REP 7 1 Chute Transport Assembly REP 6 1 Laser Assembly REP 7 4 Print Engine Controller PWB REP 9 3 Fuser Assembly REP 6 2 MBF Chute Assembly REP 4 1 Registr...

Page 89: ...ed with irregular white areas Figure 1 Spot Deletions Initial Actions Check that the paper supply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps...

Page 90: ...e clean Check that the paper is within specifications Inspect the paper path between feed and exit for contamination or obstructions Procedure Enter Diagnostics and select Test Print Scroll to Print P...

Page 91: ...upply is dry and fresh Inspect the printer paper path for items such as staples paper clips and paper scraps Check installation of the Print Cartridge Check that the Print Cartridge ground contact poi...

Page 92: ...y REP 7 1 Open the Rear Cover Remove the Fuser Assembly Rotate the fuser idler gear manually and inspect the Heat Roll Open the fuser jam access cover Rotate the fuser idler gear manually and inspect...

Page 93: ...is found BTR Assembly REP 7 1 Fuser Assembly REP 6 2 HVPS PWB REP 9 6 Print Cartridge Side Guide REP 7 5 IQ RAP 10 Black Prints A totally black output print There is toner on the paper with no visible...

Page 94: ...VPS PWB REP 9 6 Fuser Assembly REP 6 2 Chute Transport Assembly REP 6 1 Laser Assembly REP 7 4 Print Cartridge Side Guide REP 7 5 Print Engine Controller PWB REP 9 3 Problem solved Problem solved IQ R...

Page 95: ...for any obstructions or debris that might hamper the passage of the paper Ensure the Print Cartridge is properly installed Procedure Run 5 test prints single sided from each paper tray If the printer...

Page 96: ...Check for obstructions or con tamination Clean or replace as necessary Check all rolls and drives in the Exit Assembly Check for obstructions or contamination Clean or replace as necessary Check the...

Page 97: ...he paper supply is dry and fresh and loaded correctly Check that the Paper Tray guides are set correctly Check that rollers and other components in the paper path are clean and unobstructed Procedure...

Page 98: ...dge PL 8 1 IQ RAP 17 Unfused Image The printed image is not fully fused to the paper The image rubs off easily Figure 1 Figure 1 Unfused Image Initial Actions Check to ensure that the paper is within...

Page 99: ...r Assembly REP 6 2 Replace the following in order until the defective component is found Fuser Assembly REP 6 2 Print Engine Controller PWB REP 9 3 LVPS PWB REP 9 5 IQ RAP 18 Resolution The two pixel...

Page 100: ...d Pad Assembly 4 33 REP 4 8 MBF No Paper Sensor 4 33 REP 4 9 Pick Up Solenoid 4 34 REP 4 10 Envelope Connector Assembly 4 35 Paper Transportation REP 5 1 Paper Handler Assembly 4 37 REP 5 2 Toner Sens...

Page 101: ...or 4 87 REP 11 15 Feeder Socket 4 88 REP 11 16 550 Sheet Feeder Size Harness Assembly 4 88 REP 11 17 Size Sensor Housing Assembly 4 89 REP 11 18 Size Sensor Actuators 4 90 REP 11 19 Size PWB 4 91 REP...

Page 102: ...r to steps in the procedure For example if step 3 in a procedure instructed you to remove a screw the screw in the illustration would be labeled 3 Illustrations are used to assist you with the procedu...

Page 103: ...02 2000 4 4 DocuPrint N2125 Introduction Initial Issue Repair Adjustment...

Page 104: ...r to the rear and remove Figure 1 Figure 1 Left Interface Cover Replacement 1 Reinstall the components in the reverse order REP 1 2 Left Cover Parts List on PL 1 1 Removal WARNING Switch off the power...

Page 105: ...ment 1 Reinstall the components in the reverse order REP 1 4 Top Cover Assembly Parts List on PL 1 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Fro...

Page 106: ...r Assembly 5 Remove the Top Cover Assembly REP 1 4 6 Remove the four screws securing the Right Cover Figure 1 NOTE On printers without an optional feeder slide the right edge of the printer over the e...

Page 107: ...ft stud of the printer Figure 1 4 Slide the Front Cover to the right and remove Figure 1 Figure 1 Front Cover Replacement 1 Reinstall the components in the reverse order REP 1 7 Left Front Cover Parts...

Page 108: ...mbly by squeezing the clips 2 Lift the lead edge of the locking tab to release and remove the Stopper from the cover Figure 1 3 Slide the Pivot Stopper that secures the left Rear Cover Assembly Figure...

Page 109: ...he left as viewed from the rear until the hinge pin is free of the Rear Cover 6 Remove the Rear Face Up Cover Assembly Figure 1 Rear Face Up Cover Assembly Replacement 1 Reinstall the components in th...

Page 110: ...late Replacement 1 Reinstall the components in the reverse order REP 1 12 Plate Handle Parts List on PL 9 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Paper Tray 1 2 R...

Page 111: ...02 2000 4 12 DocuPrint N2125 REP 1 11 REP 1 12 Initial Issue Repair Adjustment...

Page 112: ...he power and disconnect the Power Cord 1 Remove Tray 1 2 Release the left and right latches of Tray 1 Figure 1 3 Open the Retard Chute Figure 1 4 Lift the locking tab and remove the Retard Roll Assemb...

Page 113: ...r Cord 1 Remove Tray 1 2 Release the left and right latches of Tray 1 Figure 1 3 Open the Retard Chute Figure 1 4 Lift the locking tab and remove the Retard Roll Assembly Figure 2 5 Remove the Frictio...

Page 114: ...nd right latches of Tray 1 Figure 1 3 Open the Retard Chute Figure 1 4 Release the two Locking Tabs and lift the Retard Assembly Figure 2 5 Remove the Retard Spring from the Roll Assembly Figure 2 Fig...

Page 115: ...Figure 1 3 Remove the Motor Spring Figure 1 4 Remove the bearing Figure 1 NOTE It may be necessary to use a scribe or small screwdriver to lift the locking tabs to disconnect P J672 5 Press the Socke...

Page 116: ...gure 1 NOTE It may be necessary to use a scribe or small screwdriver to lift the locking tabs to disconnect P J672 5 Disconnect P J672 from the Socket Guide Figure 2 6 Remove the two screws that secur...

Page 117: ...02 2000 4 18 DocuPrint N2125 REP 2 5 Initial Issue Repair Adjustment...

Page 118: ...ent 1 Reinstall the components in the reverse order REP 3 2 Turn Roll Assembly Parts List on PL 3 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left...

Page 119: ...ver Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remo...

Page 120: ...elease the five hooks and remove the Sensor Figure 1 Figure 1 Stack Height Sensor Replacement 1 Reinstall the components in the reverse order REP 3 5 Low Paper Sensor Parts List on PL 3 1 Removal WARN...

Page 121: ...y REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 13 Remove the four screws that secure the bracket to the Paper Feeder and remove the brack...

Page 122: ...e Top Cover Assembly REP 1 4 10 Remove the Right Cover REP 1 5 11 Remove the LVPS PWB REP 9 5 12 Remove the Paper Feeder REP 3 1 13 Remove the Feed Clutch Assembly REP 3 6 14 Remove the E ring that se...

Page 123: ...ble to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1...

Page 124: ...embly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Open Rear Door 9 Remove the Top Cover Assembly REP 1 4 10 Remove the...

Page 125: ...Remove Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover Assembly REP 1 7 6 Remove Top Cover Assembly REP 1 4 7 Remove the Left Plate Assembly REP 1 11 8 Remo...

Page 126: ...emove the Size Sensor Housing REP 3 11 NOTE Observe orientation of switch actuators before removal 10 Remove the four screws that secure the Size Sensor Actuators to the Size Sensor Hous ing Figure 1...

Page 127: ...ws that secure the Tray 1 Size PWB to the Size Sensor Housing Fig ure 1 13 Lift the PWB and disconnect P J51 and P J331 Figure 1 Tray 1 Size PWB Replacement 1 Reinstall the components in the reverse o...

Page 128: ...components in the reverse order REP 4 2 MBF Feed Roll Assembly Parts List on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cove...

Page 129: ...on PL 4 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Open the Front Cover 2 Lift the locking tab and slide the right core to the right Figure 1 3 Slide the MBF Feed Roll to t...

Page 130: ...Remove the MBF Feed Roll Assembly REP 4 2 7 Disconnect the hook that secures the Bottom Tray Assembly to the MBF Chute Assembly Figure 1 8 Use a small screwdriver to carefully lift the locking tab and...

Page 131: ...Paper Actuator from the back of the Bottom Tray and remove Figure 1 Figure 1 MBF No Paper Actuator Replacement 1 Reinstall the components in the reverse order REP 4 6 Tray Pick Up Parts List on PL 4 1...

Page 132: ...e the assembly Figure 1 Figure 1 Retard Pad Assembly Replacement 1 Reinstall the components in the reverse order REP 4 8 MBF No Paper Sensor Parts List on PL 4 1 Removal WARNING Switch off the power a...

Page 133: ...off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP 1 7 5 Remove...

Page 134: ...3 Remove the Front Cover Assembly REP 1 6 4 Remove the MBF Chute Assembly REP 4 1 5 Remove the two screws that serve the Envelope Connector Assembly in the Chute Assembly Figure 1 6 Slide the Envelop...

Page 135: ...02 2000 4 36 DocuPrint N2125 REP 4 10 Initial Issue Repair Adjustment...

Page 136: ...e Left Front Cover REP 1 7 5 Remove the MBF Chute Assembly REP 4 1 6 Using long nose pliers remove Shaft 14 from the Printer Figure 1 7 Remove Gear 14 Figure 2 8 Disconnect P J43 and P J42 from the Co...

Page 137: ...ARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP...

Page 138: ...er Assembly REP 1 1 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP 1 7 5 Remove the MBF Chute Assembly REP 4 1 6 Remove the Paper Handler Assembly REP 5 1 7 Open the Upper...

Page 139: ...dler Figure 1 10 Disconnect P J432 from the Registration Sensor Figure 1 Registration Sensor Replacement 1 Reinstall the components in the reverse order REP 5 5 Registration Clutch Parts List on PL 5...

Page 140: ...haft Figure 1 10 Release the two registration springs from the Metal Registration Roll Figure 2 11 Squeeze and hold the Upper Chute and Inlet Chute together Align the hole in the chute with the Boss o...

Page 141: ...02 2000 4 42 DocuPrint N2125 REP 5 6 Initial Issue Repair Adjustment Figure 2 Registration Springs Figure 3 Rubber Registration Roll Replacement 1 Reinstall the components in the reverse order...

Page 142: ...at secures the TR Wire red to the Transport Chute Assembly Fig ure 1 10 Use care not to drop high voltage contact springs when chute is removed Figure 1 11 Remove the two screws that secure the Transp...

Page 143: ...mbly REP 4 1 12 Remove the Paper Handler Assembly REP 5 1 13 Remove the Transport Chute Assembly REP 6 1 14 Remove the Print Cartridge Top Guide Assembly REP 7 2 15 Remove the Print Engine Controller...

Page 144: ...Left Cover REP 1 2 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Top Cover Assembly REP 1 4 8 Remove the Rear Cover Assembly REP 1 8 9 Remove the Interlock Cover REP 1 10 10 Disconnect P J31...

Page 145: ...sembly to the Exit Chute Assembly Figure 1 12 Remove the Motor Figure 1 Figure 1 Exit Motor Assembly Replacement 1 Reinstall the components in the reverse order REP 6 6 Stack Full Sensor Parts List on...

Page 146: ...10 Remove the Exit Chute Assembly REP 6 4 11 Lift the Static Eliminator Assembly and remove Figure 1 See REP 6 8 step 6 12 Remove the Stack Full Actuator REP 6 8 13 Release the locking tab and remove...

Page 147: ...02 2000 4 48 DocuPrint N2125 REP 6 7 Initial Issue Repair Adjustment Figure 2 Mid 1 Roll Assembly Figure 3 Mid 2 Roll Assembly Replacement 1 Reinstall the components in the reverse order...

Page 148: ...embly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Top Cover Assembly REP 1 4 5 Remove the Rear Cover Assembly REP 1 8 6 Remove the Static Eliminator Assembly Figure 1 7 Lift the right end of...

Page 149: ...ed before the Upper Cover Assembly to avoid break age 5 Invert the Fuser Assembly to access the Fuser Heat Rod Figure 2 6 Remove the three screws securing the Fuser Heat Rod and Harness Figure 2 NOTE...

Page 150: ...n the reverse order REP 7 2 Print Cartridge Top Guide Assembly Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover...

Page 151: ...Remove the Left Plate Assembly REP 1 11 7 Open the Rear Cover 8 Remove the Print Cartridge Top Guide Assembly REP 7 3 9 Release the harness of the Print Cartridge Sensor Assembly from the three clamps...

Page 152: ...r Assembly Replacement 1 Reinstall the components in the reverse order REP 7 5 Print Cartridge Side Guide Parts List on PL 8 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remo...

Page 153: ...02 2000 4 54 DocuPrint N2125 REP 7 4 REP 7 5 Initial Issue Repair Adjustment...

Page 154: ...power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Left Interface Cover Assembly REP 1 1 3 Remove the Left Cover REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front...

Page 155: ...REP 8 2 Initial Issue Repair Adjustment 20 Pull bottom of assembly out and lower the assembly to release the locking tab and remove Figure 1 Figure 1 Drive Gear Assembly Replacement 1 Reinstall the co...

Page 156: ...sembly to the printer Figure 1 12 Remove the Fan Figure 1 Figure 1 Fan Assembly Replacement 1 Reinstall the components in the reverse order REP 9 2 System Controller PWB Parts List on PL 10 1 Removal...

Page 157: ...void damage WARNING Switch off the power and disconnect the Power Cord 1 Remove the Left Interface Cover Assembly REP 1 1 2 Remove the Left Cover REP 1 2 3 Remove the Left Plate Assembly REP 1 11 4 Di...

Page 158: ...to avoid damage WARNING Switch off the power and disconnect the Power Cord 1 Remove the Left Interface Cover Assembly REP 1 1 2 Remove the Left Cover REP 1 2 3 Remove the Left Plate Assembly REP 1 11...

Page 159: ...PWB Replacement 1 Reinstall the components in the reverse order REP 9 6 HVPS PWB Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD proc...

Page 160: ...ING Switch off the power and disconnect the Power Cord 1 Remove Tray 1 2 Remove the Print Cartridge and store in safe place 3 Remove the Front Cover Assembly REP 1 6 4 Remove the Left Front Cover REP...

Page 161: ...r REP 1 2 4 Remove the Front Cover Assembly REP 1 6 5 Remove the Left Front Cover REP 1 7 6 Remove the Left Plate Assembly REP 1 11 7 Remove the Plate Handle REP 1 12 8 Press the locking tabs and push...

Page 162: ...r Interlock Switch Assembly Parts List on PL 10 1 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage WARNING Switch off the power an...

Page 163: ...1 Figure 1 Offset Catch Tray Harness Assembly Replacement 1 Reinstall the components in the reverse order REP 9 12 Duplex Harness Assembly Parts List on PL 10 1 Removal CAUTION These components are s...

Page 164: ...t N2125 REP 9 12 Repair Adjustment Initial Issue 20 Remove the Duplex Harness Assembly Figure 1 Figure 1 Duplex Harness Assembly Replacement 1 Reinstall the components in the reverse order manuals4you...

Page 165: ...02 2000 4 66 DocuPrint N2125 REP 9 12 Initial Issue Repair Adjustment...

Page 166: ...the Offset Catch Tray toward the rear and remove Figure 1 Figure 1 Offset Catch Tray Replacement 1 Reinstall the components in the reverse order REP 10 2 Exit Tray Extension Parts List on PL 14 1 Remo...

Page 167: ...ension REP 10 2 2 Squeeze the upper end of the Paper Weight and remove Figure 1 3 Slide the tray to the left 4 Push the right hinge pin in until it is free of the Offset Catch Tray Figure 2 5 Push the...

Page 168: ...prings Figure 1 8 Remove the six screws that secure the Rear Cover Figure 1 9 Remove the Rear Cover Figure 1 Rear Cover Assembly Replacement 1 Reinstall the components in the reverse order REP 10 5 Lo...

Page 169: ...nents in the reverse order REP 10 7 Offset Catch Tray PWB Parts List on PL 14 2 Removal CAUTION These components are susceptible to electrostatic discharge Observe all ESD procedures to avoid damage W...

Page 170: ...mbly Replacement 1 Install the motor with both tabs touching the plastic standoffs 2 The ground wire on top and the earth plate at the bottom should be on the outside Figure 1 3 Reinstall the componen...

Page 171: ...he solenoid to the Inner Exit Chute Assembly Figure 1 Remove the Solenoid Figure 1 Direction Solenoid Replacement 1 Reinstall the components in the reverse order REP 10 11 Exit Sensor Assembly Parts L...

Page 172: ...1 Figure 1 Stack Full Sensor Actuator Replacement 1 Reinstall the components in the reverse order REP 10 13 Stack Full Sensor Parts List on PL 14 2 Removal WARNING Switch off the power and disconnect...

Page 173: ...0 5 6 Hold open the Rear Cover 7 Remove the Inner Exit Chute Assembly REP 10 6 8 Remove the Offset Catch Tray PWB REP 10 7 9 Remove the Static Eliminator REP 10 9 10 Remove the Stack Full Actuator REP...

Page 174: ...h Tray PWB REP 10 7 9 Remove the screw that secures the ground plate to the bottom of the Motor Drive Assem bly Figure 1 10 Remove the three screws that secure the PWB Holder to the Inner Exit Chute A...

Page 175: ...Offset Catch Tray PWB Figure 1 11 Disconnect P J226 from the Offset Home Sensor Figure 1 12 Remove the harness from all harness clamps 13 Remove the Offset Assembly Figure 1 Figure 1 Offset Assembly...

Page 176: ...rn the Offset Catch Tray upside down 5 Remove the Lower Cover REP 10 5 6 Hold open the Rear Cover 7 Remove the Inner Exit Chute Assembly REP 10 6 8 Remove the Offset Assembly REP 10 16 9 Disconnect P...

Page 177: ...02 2000 4 78 DocuPrint N2125 REP 10 18 Initial Issue Repair Adjustment...

Page 178: ...ove the 550 Sheet Feeder Figure 1 Optional Feeder Assembly Replacement 1 Reinstall the components in the reverse order REP 11 2 550 Sheet Feeder Right Cover Parts List on PL 11 1 Removal WARNING Switc...

Page 179: ...the cover out and down to remove the cover Figure 1 Figure 1 Left Cover Replacement 1 Reinstall the components in the reverse order REP 11 4 550 Sheet Feeder Gear Bracket Assembly Parts List on PL 11...

Page 180: ...Figure 1 Top Plate Replacement 1 Reinstall the components in the reverse order REP 11 6 550 Sheet Feeder Drive Assembly Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Po...

Page 181: ...mponents in the reverse order REP 11 8 Turn Roll Assembly Parts List on PL 11 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11...

Page 182: ...power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray from the Feeder 3 Remove the 550 Sheet Feeder Right Cover REP 11 2 4 Remove the 550 Sheet...

Page 183: ...50 Sheet Feeder Right Cover REP 11 2 4 Remove the 550 Sheet Feeder Left Cover REP 11 3 5 Remove 550 Sheet Feeder Gear Bracket Assembly REP 11 4 6 Remove the Top Plate REP 11 5 7 Remove the 550 Sheet F...

Page 184: ...emoval WARNING Switch off the power and disconnect the Power Cord 1 Remove the Tray 2 Open the Front Chute Assembly from the Feeder of the 550 Sheet Feeder Figure 1 3 Release the locking tab on the fr...

Page 185: ...Gear Bracket Assembly REP 11 4 6 Remove the Top Plate REP 11 5 7 Remove the 550 Sheet Feeder Drive Assembly REP 11 6 8 Remove the Feed Clutch Assembly REP 11 10 9 Remove the E ring that secures the le...

Page 186: ...five hooks and remove the Sensor Figure 1 Figure 1 Stack Height Sensor Replacement 1 Reinstall the components in the reverse order REP 11 14 Low Paper Sensor Parts List on PL 11 2 Removal WARNING Swi...

Page 187: ...Size Harness Assembly Parts List on PL 11 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray from the Feede...

Page 188: ...e printer from the 550 Sheet Feeder REP 11 1 2 Remove the Tray from the Feeder 3 Remove the 550 Sheet Feeder Left Cover REP 11 3 4 Remove the two screws that secure the 550 Sheet Feeder Size Harness A...

Page 189: ...REP 11 17 NOTE Observe orientation of switch actuators before removal 6 Remove the four screws that secure the Size Sensor Actuators to the Size Sensor Hous ing Figure 1 7 From the back side disengage...

Page 190: ...Size PWB to the Size Sensor Housing Assembly Figure 1 9 Remove the Tray 2 Size PWB Figure 1 Figure 1 Tray 2 Size PWB Replacement 1 Reinstall the components in the reverse order REP 11 20 Size Harness...

Page 191: ...02 2000 4 92 DocuPrint N2125 REP 11 19 REP 11 20 Initial Issue Repair Adjustment...

Page 192: ...up to remove Fig ure 1 Figure 1 Duplex Assembly Replacement 1 Reinstall the components in the reverse order REP 12 2 Turn Chute Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and...

Page 193: ...ent 1 Reinstall the components in the reverse order REP 12 4 Duplex PWB Parts List on PL 13 2 Removal CAUTION These components are susceptible to electostatic discharge Observe all ESD procedures to a...

Page 194: ...12 6 Connector Chute Assembly Parts List on PL 13 1 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Duplex Cover REP 12 3 3 Remove...

Page 195: ...P 12 3 3 Remove the Drive Cover REP 12 5 4 Remove the Connector Chute Assembly REP 12 6 5 Push the two locking tabs out to release the Upper Chute Assembly Figure 1 6 Lift the Upper Chute until it is...

Page 196: ...onents in the reverse order REP 12 9 Rear Roll Assembly Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Turn...

Page 197: ...move the Drive Cover REP 12 5 5 Remove the Duplex PWB REP 12 4 6 Remove the Connector Chute Assembly REP 12 6 7 Remove the Motor Assembly REP 12 8 8 Release the locking tab and remove the Middle Belt...

Page 198: ...embly REP 12 1 2 Release the tabs and open the Upper Chute Assembly Figure 1 3 Release the locking tab and remove the Front Belt Stopper Figure 1 4 Remove the Synchronous Belt from the Pulley REP 12 1...

Page 199: ...REP 12 12 Synchronous Belt Parts List on PL 13 2 Removal WARNING Switch off the power and disconnect the Power Cord 1 Remove the Duplex Assembly REP 12 1 2 Remove the Drive Cover REP 12 5 3 Remove the...

Page 200: ...t Sensor Figure 1 5 Remove the Sensor Figure 1 Figure 1 Transport Sensor Replacement 1 Reinstall the components in the reverse order REP 12 14 Face Up Tray Sensor Parts List on PL 13 2 Removal WARNING...

Page 201: ...02 2000 4 102 DocuPrint N2125 REP 12 13 REP 12 14 Initial Issue Repair Adjustment...

Page 202: ...in the Bottom Cover 5 Lift the Bottom Cover and remove the harness connector from the cover Figure 1 Figure 1 Bottom Cover Replacement 1 Reinstall the components in the reverse order REP 13 2 Top Chu...

Page 203: ...ect P J411 P J 412 P J413 and P J414 from the Feeder PWB Figure 1 5 Remove the screw that secures the Feeder PWB to the frame Figure 1 Figure 1 Envelope Feeder PWB Replacement 1 Reinstall the componen...

Page 204: ...ee of the mounting Figure 1 5 Remove the Exit Pinch Roll Figure 1 Figure 1 Exit Pinch Roll Replacement 1 Reinstall the components in the reverse order REP 13 6 Exit Sensor Assembly Parts List on PL 12...

Page 205: ...he arm is free of the hinge pin Fig ure 1 3 Remove the Weight Arm Figure 1 Figure 1 Weight Arm Replacement 1 Reinstall the components in the reverse order REP 13 8 Tray Extension Parts List on PL 12 1...

Page 206: ...ctuator up to remove Figure 1 Figure 1 No Paper Actuator Replacement 1 Reinstall the components in the reverse order REP 13 10 No Paper Sensor Parts List on PL 12 2 Removal WARNING Switch off the powe...

Page 207: ...Disconnect P J416 from the Feed Clutch Figure 1 7 Remove the cover Figure 1 Gear Cover Replacement 1 Reinstall the components in the reverse order REP 13 12 Feed Clutch Parts List on PL 12 2 Removal...

Page 208: ...e Top Chute REP 13 2 4 Remove the Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Torque Clutch and Bearing from Transport Roll Assembly Figure 1 7 Move the right bearing a...

Page 209: ...Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Torque Clutch Figure 1 7 Remove the Feed Clutch Figure 1 8 Remove the one way clutch and bearing from the Bottom Roll Assemb...

Page 210: ...PWB REP 13 3 6 Remove the Gear Cover REP 13 11 7 Remove the Feed Clutch REP 13 12 8 Remove the Torque Clutch Gear and Bearing from the Roll Feed shaft Figure 1 9 Slide the Feed Roll Shaft and bearing...

Page 211: ...he Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Torque Clutch and Bearing from the Feed Roll Shaft Figure 1 7 Slide the Feed Roll Shaft and Bearing to the left until it...

Page 212: ...4 Remove the Envelope Feeder PWB REP 13 3 5 Remove the Gear Cover REP 13 11 6 Remove the Feed Clutch REP 13 12 7 Remove the Bottom Roll Assembly REP 13 14 8 Remove the Feed Roll Assembly 1 REP 13 15 9...

Page 213: ...02 2000 4 114 DocuPrint N2125 REP 13 17 Initial Issue Repair Adjustment...

Page 214: ...plexed print NOTE When checking the measurement for a duplexed print in the scan direction you must exit diagnostics and run a duplexed System Controller Test Print Fold the test pat tern in half left...

Page 215: ...02 2000 4 116 DocuPrint N2125 ADJ 1 1 Initial Issue Repair Adjustment...

Page 216: ...ser PL 6 1 Chute Transport Fuser 5 12 Exit PL 7 1 Exit 5 13 Drive Xerographics PL 8 1 Drive Xerographics 5 14 Frame Size Sensor PL 9 1 Frame Size Sensor 5 15 Electrical PL 10 1 Electrical 5 16 Optiona...

Page 217: ...02 2000 5 2 DocuPrint N2125 Initial Issue Parts list...

Page 218: ...ures Information Section lists the name and purpose of the Tag In some cases you will go to the parts lists and find a part number listed as with Tag Go to the Change Tag Index for a description of wh...

Page 219: ...over Assembly with 10 13 15 17 20 22 9 Front Cover 10 Left Latch Assembly 11 Lever 12 Right Latch Assembly 13 3E48991 Stopper Cover 14 Envelope Chute 15 3E43880 Tray Stopper 16 50K39130 MBF Tray Assem...

Page 220: ...3 Right Latch 4 Latch Cover 5 Rear Cover 6 Direction Arm 7 600K79530 Cap Kit quantity 2 8 54K14991 Face Up Chute Assembly 9 Right Pivot Stopper 10 3E46120 Stopper 11 Duplex Guide Rail Left 12 Duplex...

Page 221: ...5 2 Latch Spring 3 Left Latch 4 Right Latch 5 Latch Cover 6 Rear Cover 7 Face up Sub Tray 8 Face up Main Tray 9 Eliminator 10 Pinch Spring 11 Pinch Roll 12 Direction Arm 13 54K14991 Face up Chute Asse...

Page 222: ...mer Size Knob 4 Custom Size Plate 5 End Guide Assembly 6 Extension Housing 7 Rack Slide 8 Extension Spring 9 Latch Spring 10 Size Plate 11 Base Extension 12 Left Side Guide Assembly 13 Right Side Guid...

Page 223: ...890 Friction Clutch Assembly 8 600K79550 Roll Assembly Kit 9 Retard Bracket 10 809E11830 Retard Spring 11 Tongue Plate 12 Tongue Shaft Assembly 13 Lift Up Shaft Holder 14 Bearing 15 Lift Up Ground Spr...

Page 224: ...ly with 20 28 20 Feed Shaft P O item 19 21 Bearing P O item 19 22 Nudger Support Assembly P O item 19 23 130E81970 Stack Height Sensor P O item 19 24 Gear Clutch P O item 19 25 O W Clutch Assembly P O...

Page 225: ...11 Tray Bottom P O item 8 12 120E17120 MBF No Paper Actuator P O item 8 13 MBF Bottom Spring Tray 14 Exit Bearing 15 19K94570 Retard Pad Assembly 16 130E81970 Paper Set Sensor 17 MBF Ground Plate 18 M...

Page 226: ...ion Spring Right 15 7E54671 Registration Gear Metal 16 7E54681 Registration Gear Rubber 17 Right Bearing Rubber 18 Left Bearing Rubber 19 121E85820 Registration Clutch 20 Upper Chute Bottom 21 Ground...

Page 227: ...Fuser Assembly 120V with 10 11 126K10141 Fuser Assembly 230V 7 DTS Wire Assembly 8 TR Wire Assembly 9 162K47191 Fuser Harness Assembly 120V J271 J11 J27 J262 162K51861 Fuser Harness Assembly 230 J271...

Page 228: ...ring Pinch 11 59K11960 MID 2 Roll Assembly 12 Roll Pinch 13 MID Spring Pinch 14 Spring Pinch 15 Exit Chute 16 130E81970 Exit Photo Sensor 17 162K46981 Stack Full Sensor Harness Assembly J30 J301 18 In...

Page 229: ...Cartridge Top Guide Assembly 5 Spring P O item 15 6 Print Cartridge Sensor Assembly P O item 15 7 162K46922 Laser Harness Assembly J21 J211 J212 J213 8 VDO Harness Assembly J22 J223 P O item 7 9 62K0...

Page 230: ...7 127K24771 Fan Assembly 8 Duct 9 Edge Saddle H 10 AC Clamp 11 Insulator Plate 12 Plate Handle 13 162K47001 Feeder Harness Assembly J33 J331 14 CAM Shaft 15 Size Sensor Actuators 16 Cover Size Sensor...

Page 231: ...bly J34 P341 10 162K46941 Connector Harness Assembly J23 J231 11 160K52761 Connector PWB 12 110K08561 Front Interlock Switch Assembly 13 160K52414 Print Engine Controller PWB 14 105K15401 5VDC PWB 15...

Page 232: ...ize Sensor Housing 7 160K53061 Size Option PWB 8 CAM Spring 9 CAM Lever 10 CAM Shaft 11 CAM SW 12 Cover Size Sensor 13 162K48420 Size Harness Assembly 14 Clamp 15 Main Frame Assembly 16 802E04930 Righ...

Page 233: ...Front Chute Assembly 16 Turn Chute 17 Roll 7 18 Feeder Cover 19 600K79320 Feeder Assembly with 20 28 20 Feed Shaft 21 Bearing 22 Nudger Support Assembly 23 Nudger Chute 24 Gear Clutch 25 O W Clutch As...

Page 234: ...d Roll 8 Feeder Bearing 9 Pinch Spring 10 59E93940 Exit Pinch Roll 11 31E93291 Weight Arm 12 Weight Holder 13 Envelope Left Side Guide 14 Envelope Right Side Guide 15 Envelope Feeder Sub Assembly 16 P...

Page 235: ...c 11 121K87190 Feed Clutch 12 6E47120 Clutch Shaft 17 13 121K87210 One Way Clutch Assembly 14 121K87220 One Way Clutch Assembly 15 Transport Roll Assembly with 16 16 Transport Roll 17 Bottom Roll Asse...

Page 236: ...lex 1 of 2 Item Part Description 1 Duplex Assembly with 2 6 2 Turn Chute Assembly 3 Connector Chute Assembly Connector 4 54K15061 Upper Chute Assembly 5 Duplex Drive Cover 6 Lower Duplex Chute Assembl...

Page 237: ...er Belt 4 Duplex Gear 17 Pulley 5 Duplex Bearing 6 Duplex Gear 18 7 Duplex Gear 17 39 8 127K24800 Motor Assembly 9 423W15455 Synchronous Belt 10 Lower Duplex Chute 11 Duplex Latch 12 Duplex Latch Spri...

Page 238: ...ion 1 Offset Catch Tray Assembly with 2 10 2 50K38631 Exit Tray Assembly 3 Tray Spring 4 50E89160 Exit Tray 5 12E09550 Weight Link 6 802E02773 Rear Cover 7 802E02755 OCT Cover 8 54K14842 Inner Exit Ch...

Page 239: ...Pin 18 130K84220 Exit Sensor Assembly 19 120E17191 Stack Full Actuator 20 130E81970 Stack Full Sensor 21 OCT Sensor Harness Assembly J224 225 J226 J227 J228 22 Offset Roll Assembly with 23 26 43 23 E...

Page 240: ...gnostics 6 15 GP 2 2 Controller ESS Diagnostics 6 15 GP 2 3 Keys Pad LED Layout 6 16 GP 2 4 IOT Diagnostics 6 16 GP 2 5 Test Print 6 17 GP 2 6 NVM Config 6 18 GP 2 7 Component Test 6 20 GP 2 8 Enterin...

Page 241: ...02 2000 6 2 DocuPrint N2125 Initial Issue General Procedures Information...

Page 242: ...environmental problems call for management or sales assistance as needed Tools and consumables contains a listing of the required tools and supplies needed to correctly repair and maintain the machin...

Page 243: ...02 2000 6 4 DocuPrint N2125 Introduction Initial Issue General Procedures Information...

Page 244: ...T B Dmm Maximum paper size Legal 14 8 5 X14 355 6mm X 215 9mm Maximum printable area Edge to edge printing capability Within the 4mm border 4 sides the printer will print any data 6 point Arial or lar...

Page 245: ...tandards Category Standard Satisfied Laser Safety 100V 120V type is submitted to FDA 21 CFR Chapter 1 Subchapter J Section 1010 1040 220V 240V type is submitted to IEC 825 Class 1 laser Product Ozone...

Page 246: ...al Postcard 190gsm Card Stock 216gsm 80lb Table 1 Continuous Printing Speed After the First Sheet Out Paper Type Simplex Mode prints per minute Duplex Mode impressions per minute Letter SEF 21 15 Lega...

Page 247: ...egal 13 215 9 x 330 2 8 5 x 13 Legal 14 215 9 x 355 6 8 5 x 14 Executive SEF 184 2 x 266 7 7 25 x 10 5 A4 SEF 210 0 x 297 0 8 25 x 11 5 B5 JIS SEF 182 0 x 257 0 7 x 10 Custom Width Length 182 0 215 9...

Page 248: ...9 x 7 5 X X Postcard Japanese Official 100 x 148 0 3 9 x 5 8 X X Universal size 105 0 x 148 5 4 x 5 8 X X Others Cardstock 76 2 x 127 0 210 x 297 3 x 5 8 25 x 11 7 A4 or 215 9 x 279 4 8 5 x 11 Let ter...

Page 249: ...cies Letter 215 9 x 279 4 mm 8 5 x 11 0 Simplex SEF Simplex SEF NS Yes Yes Yes Transpar encies A4 210 0 x 297 0 mm 8 27 x 11 69 Simplex SEF Simplex SEF NS Yes Yes Yes Labels Letter 215 9 x 279 4 mm 8...

Page 250: ...y Print Cartridges Two Print Cartridges are available for the printer The following figures represent the number of impressions on an average 5 image coverage on Letter size paper in Simplex printing...

Page 251: ...tions Option Description 550 Sheet Paper Feeder Customer Order Number 97S02377 Provides 550 sheet continuous feed when used in con junction with the 550 sheet Paper Tray You can install one or two 550...

Page 252: ...uplex Specifications Power Supply The 24VDC and 3 3VDC are supplied from the LVPS PWB through the Print Engine Control ler PWB to the Duplex Assembly Table 1 Dimension and Weight Width Depth Height We...

Page 253: ...GP 1 12 Envelope Feeder Specifications Dimension and Weight Table 1 Figure 1 Envelope Feeder Dimensions Power Supply The 24VDC and 3 3VDC are supplied from the LVPS PWB through the Print Engine Contr...

Page 254: ...ast 100 faults Smart Diagnostics Sixth Sense CenterWare Internet Services This feature enables system administrator to be notified of various reactive events in the printer via E mail messages The sys...

Page 255: ...g Component Test Table 2 summarizes the operation of the Control Panel keys in IOT diagnostic main menu Table 1 Entering IOT Diagnostics Key Combination Key Number Action Item Up Item Down 2 6 While t...

Page 256: ...to the items menu 12 Press key 1 or 5 to get back to the Main Menu selection of Component Test or NVM Con fig or Test Print Error and Jam Recovery During Test Print if printer encounters problem 1 It...

Page 257: ...C3 Main tray not installed prop erly insert main tray Tray 2 out install tray C3 Aux tray 1 not installed prop erly insert Tray properly Tray 3 out install tray C3 Aux tray 2 not installed prop erly...

Page 258: ...justment 04 Read Write Tray 3 Scan Dir Adjustment 04 Read Write EBF Scan Dir Adjustment 04 Read Write MBF Scan Dir Adjustment 04 Read Write Proc Dir DUP Adjustment 08 Read Write Scan Dir DUP Adjustmen...

Page 259: ...or 5 to scroll to Component Test 6 Press key 2 or 6 to select Component Test Item Table 2 7 Press key 2 or 6 to scroll through the items menu 8 Press key 4 to execute the test item appearing on the LC...

Page 260: ...oll DC Operation Charge Roll AC Operation Dev Bias DC Operation Dev Bias AC Operation BTR Operation BTR Operation Detack SAW Duplex Motor Hi Operation Press 0 or 4 to stop motor Duplex Motor Low Opera...

Page 261: ...imultaneously hold keys 0 and 4 down 3 Power up printer wait for first to display on the LCD line 1 then release both keys 4 Let printer go to Ready mode 5 Press 1 or 5 to scroll to Reset Menu 6 Press...

Page 262: ...r Reset Resets the System Controller to factory defaults NOTE This will reset all network addresses to the factory default 1 Power down printer 2 Simultaneously hold keys 0 and 7 down 3 Power up print...

Page 263: ...02 2000 6 24 DocuPrint N2125 GP 2 11 Initial Issue General Procedures Information...

Page 264: ...ck Diagram of the Print Cycle Figure 1 illustrates the N2125 print cycle It shows the sequence of events for the xerographic process and the paper flow into and out of the printer Figure 2 is both a c...

Page 265: ...tage is the voltage that is used to transfer toner from the Magnetic Roll to the surface of the drum The AC voltage agitates the toner on the Magnetic Roll and makes toner transfer easier The Magnetic...

Page 266: ...sily off of the drum surface Figure 6 Side View Block Diagram of the Discharge Process 6 Fusing Figure 7 The paper moves to the Fuser Assembly where it passes between the Heat Roll and the Pressure Ro...

Page 267: ...ed from the drum is not reused by the Print Cartridge Figure 8 Figure 8 Side View of the Print Cartridge GP 3 2 The Paper Path There are three paths that a sheet of paper can follow during a feed cycl...

Page 268: ...Drive Flow As shown in Figure 1 the Drive Gear Assembly takes the mechanical energy that is created by the Main Motor Assembly and transmits it to four printer subsystems the Turn Clutch Assem bly th...

Page 269: ...actuates it transmits the energy from Gear 14 to the Pick Up Gear that is located on the end of the MBF Shaft Assembly Figure 2 Drive transmission to the MBF Roll Assembly Drive transmission to the T...

Page 270: ...sembly When the Feed Clutch Assembly actuates it transmits the energy to the Feed Roll Assembly Figure 4 Drive transmission to the Feeder Assembly Drive transmission to the Rubber Registration Roll As...

Page 271: ...Gear drives the BTR Gear that is located on the end of the BTR Assembly Figure 6 Figure 6 Drive transmission to the Drum and BTR Drive transmission to the Fuser Assembly As shown in Figure 7 the mech...

Page 272: ...4 Distributes low DC voltages to various printer components 5 Monitors printer status 6 Maintains a running print count 7 Writes the NVRAM settings 8 Controls printer options The Print Engine Controll...

Page 273: ...are shut down Switch the power supply OFF then ON again to reset the circuit after an overcurrent shutdown GP 3 6 Laser Control Warm up The Laser completes warm up when the SOS signal intervals are sh...

Page 274: ...er switches on the Heat Rod when the Fuser temperature lowers below the current control temperature approximately 178 C for the standard control temperature The printer switches off the Heat Rod when...

Page 275: ...t print cycle During an Erase Cycle the printer switches on the Main Motor Assembly and the BCR AC and DC BTR and DB DC voltages The Erase Cycle removes any developed image toner on the drum and any l...

Page 276: ...re 1 and Figure 2 During the duplex printing the printer prints the first side of the paper Then the Exit Assembly reverses direction and re feeds the paper to the Duplex Assembly The paper is transfe...

Page 277: ...from the Middle Roll Assembly to the Front Roll Assembly Duplex Sensor Assembly Detects paper entering and leaving the Duplex Assembly Home Position Sensor Detects the position of the Face Up Tray Dup...

Page 278: ...t of paper 4 The Duplex Assembly returns the first sheet to the printer as the Exit Assembly returns the second sheet to the Duplex Assembly 5 The printer prints on the second side of the first sheet...

Page 279: ...enerated by the Main Motor Assembly is trans mitted to the gears of the Envelope Feeder Figure 3 Drive Flow Function of Major Components Figure 4 shows the major components of the Envelope Feeder Clut...

Page 280: ...ath No Paper Sensor Detects out of envelope condition Envelope Exit Sensor Assembly Detects exit of the envelope Envelope PWB Controls the Envelope Feeder and is the signal interface to the Print Engi...

Page 281: ...id OCT Roll Assembly and Exit Roll Assembly The Offset Motor Assembly generates the drive power to move the Offset Roll Assembly in alternating directions Figure 3 OCT Drive Flow Function of Major Com...

Page 282: ...r Assembly begins rotating in the counterclockwise direction moving the Offset Roll Assembly back into home position until the Sensor OCT Home signal OCT HOME goes Low When the power is first switched...

Page 283: ...r the specified time the Print Engine Controller PWB detects that an OCT jam has occurred E6 2 Jam One of the conditions of the E6 2 jam is the same as the condition of the E6 1 jam Another is the sig...

Page 284: ...ssembly Figure 3 Option Feeder Drive Flow Function of Major Components Figure 4 shows the major components of the Option Feeder Assembly Turn Clutch Assembly Consists of a gear and an electric clutch...

Page 285: ...paper to the Standard Feeder Assembly path The mechanical activity is same as the Turn Clutch Assembly Feeder PWB Connective interface between the Sensors Clutches and Motor and the Size Option PWB Th...

Page 286: ...trings are displayed when scrolling through the menu items The first menu item or value is at the top of the list and the last menu item or value is at the bottom of the list Selecting an Up key cause...

Page 287: ...02 2000 6 48 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information manuals4you com manuals4you com...

Page 288: ...02 2000 6 49 DocuPrint N2125 GP 4 1 General Procedures Information Initial Issue Figure 3 Tray Menu manuals4you com manuals4you com...

Page 289: ...02 2000 6 50 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 4 PCL Menu...

Page 290: ...02 2000 6 51 DocuPrint N2125 GP 4 1 General Procedures Information Initial Issue Figure 5 System Menu manuals4you com manuals4you com...

Page 291: ...02 2000 6 52 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 6 Parallel Menu Figure 7 Serial Menu...

Page 292: ...02 2000 6 53 DocuPrint N2125 GP 4 1 General Procedures Information Initial Issue Figure 8 USB Menu manuals4you com manuals4you com...

Page 293: ...02 2000 6 54 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 9 Ethernet Menu...

Page 294: ...02 2000 6 55 DocuPrint N2125 GP 4 1 General Procedures Information Initial Issue Figure 10 Token Ring Menu manuals4you com manuals4you com...

Page 295: ...02 2000 6 56 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information Figure 11 Novell Menu...

Page 296: ...02 2000 6 57 DocuPrint N2125 GP 4 1 General Procedures Information Initial Issue Figure 12 Print Menu Figure 13 Reset Menu manuals4you com manuals4you com...

Page 297: ...02 2000 6 58 DocuPrint N2125 GP 4 1 Initial Issue General Procedures Information...

Page 298: ...S4372 Cotton Swabs 35P2162 Disposable Gloves 99P3082 Disposable Plastic Bags 99P30234 Drop Cloth 5P1737 Film Remover 43P45 Formula A Cleaner 43P48 Towel heavy duty 35P3191 RX Unique Cleaner 8R90175 Cl...

Page 299: ...02 2000 6 60 DocuPrint N2125 GP 5 1 Initial Issue General Procedures Information...

Page 300: ...uPrint N2125 Wiring Data Initial Issue 7 Wiring Data Section Contents 7 3 Base Engine 7 3 550 Sheet Paper Feeder 7 20 Duplex Assembly 7 24 Offset Catch Tray 7 28 Envelope Feeder 7 33 manuals4you com m...

Page 301: ...02 2000 7 2 DocuPrint N2125 Initial Issue Wiring Data...

Page 302: ...t Engine Controller PWB Fuser Assembly Figure 10 Table 6 7 Print Engine Controller PWB Exit Sensor and Rear Interlock Switch Figure 11 Table 7 8 Print Engine Controller PWB Size 1 PWB Feeder PWB Low P...

Page 303: ...P J27 I35 Figure 2 Connects the Fuser Exit Sensor to the Print Engine Con troller PWB P J28 K35 Figure 2 Connects the LVPS to the Print Engine Controller PWB P J29 K33 Figure 2 Connects the Main Motor...

Page 304: ...02 2000 7 5 DocuPrint N2125 Base Engine Wiring Data Initial Issue P J Maps Figure 1 Base Engine P J Location Map 1 of 2 Figure 2 Base Engine P J Location Map 2 of 2 manuals4you com manuals4you com...

Page 305: ...ne Initial Issue Wiring Data Wiring Diagram Notations The wiring diagrams presented in this manual use the following circuit notations to describe components and signal paths within the printer Figure...

Page 306: ...02 2000 7 7 DocuPrint N2125 Base Engine Wiring Data Initial Issue Block Diagram Figure 4 Block Diagram 1 of 2 manuals4you com manuals4you com...

Page 307: ...02 2000 7 8 DocuPrint N2125 Base Engine Initial Issue Wiring Data Figure 5 Block Diagram 2 of 2...

Page 308: ...B LVPS PWB path Table 2 Signal Names Signal Name Description FAN ON Fan drive power that drives the Fan Assembly with 2 voltages 24V for High speed and 15V for Low speed HEAT TTL Fuser control signal...

Page 309: ...gure 8 LVPS Fan Assembly Front Switch Interlock 5VDC PWB System Controller PWB LVPS PWB Fan Assembly Front Switch Interlock Assembly 5VDC PWB and System Con troller PWB Table 3 shows the signal names...

Page 310: ...on and off Low 0V OFF High 3 3V ON applied charge voltage CR AC Constant frequency pulse signal that provides the source of oscillation for gen erating the AC component of the CR CR CH DB DA Constant...

Page 311: ...t Cartridge and Fuser Assembly path Table 5 Signal Names Signal Name Description CR HVPS output to the Magnet Roll DB HVPS output to the BCR TR HVPS output to the BTR DC in Transfer operation and DC w...

Page 312: ...ller PWB Fuser Assembly Table 6 shows the signal names for the Print Engine Controller PWB Fuser Assembly path Table 6 Signal Names Signal Name Description EXIT Signal from the Exit Sensor This signal...

Page 313: ...terlock Switch Assembly Table 7 shows the signal names for the Print Engine Controller PWB Exit Sensor and Rear Interlock Switch Assembly path Table 7 Signal Names Signal Name Description FSTK Signal...

Page 314: ...Assembly and Motor Assembly Figure 12 Table 8 Table 9 Figure 12 Print Engine Controller PWB Size 1 PWB Feeder PWB Low Paper Sensor Stack Height Sensor Feed Clutch Assembly Turn Clutch Assembly Motor A...

Page 315: ...is signal is Low when the No Paper 2 Sensor is activated Signal Levels High 3 3V Low 0V LOW PAP 3 Signal from the Low Paper Sensor 3 equipped on the 550 Sheet Feeder 3 This signal is Low when the Low...

Page 316: ...the 5VLD circuit 0V when the Print Cartridge is not in place High 5V Low 0V EXIT XB Phase XB drive signal for the stepping motor LOW when driving and High when not driving Signal Levels High 24V Low 0...

Page 317: ...High 3 3V Low 0V SOLM Control signal which activates the Pick Up Solenoid Signal Levels High 3 3V Low 0V REG Signal from the Registration Sensor This signal is Low when the Regis tration Sensor is ac...

Page 318: ...ive voltage for the Laser Diode Signal Analog LDEN Control signal which determines the drive voltage for the Laser Diode Signal Analog Vmf D A Control signal for the Laser Diode Signal Analog SOS IN S...

Page 319: ...me and each wire is terminated at both ends with a pin number Block Diagram 1 550 Sheet Feeder Block Diagram 2 Size 1 PWB Tray 2 PWB Tray 3 PWB Table 2 3 Feeder PWB Low Paper Sensor Stack Height Senso...

Page 320: ...N SNSR Harness Assembly to the Feeder PWB P J 67 B4 Connects the N MOT Harness Assembly to the Feeder PWB J 521 E8 Connects the Size Option Harness Assembly to the Printer Assem bly Size 1 PWB P 531 E...

Page 321: ...02 2000 7 22 DocuPrint N2125 550 Sheet Paper Feeder Initial Issue Wiring Data Block Diagram 550 Sheet Feeder Figure 2 550 Sheet Feeder Block Diagram...

Page 322: ...s signal is Low when the No Paper 3 Sensor is activated Signal Levels High 3 3V Low 0V NO PAP 2 Signal from the No Paper 2 Sensor equipped on the Option Feeder 2 This signal is Low when the No Paper 3...

Page 323: ...d with a signal name and each wire is terminated at both ends with a pin number Block Diagram 1 Duplex Assembly Block Diagram 2 Print Engine Controller PWB Duplex PWB Figure 3 Table 2 3 Duplex PWB Sen...

Page 324: ...bly to the Duplex PWB P J 37 H8 Connects the Duplex Sensor Assembly to the Duplex PWB P J 38 G7 Connects the Duplex Motor Assembly to the Duplex PWB P J 39 G7 Connects the Duplex Option Harness Assemb...

Page 325: ...ocuPrint N2125 Duplex Assembly Initial Issue Wiring Data Block Diagram Figure 2 Duplex Assembly Block Diagram Print Engine Controller PWB Duplex PWB Figure 3 Table 2 Figure 3 Print Engine Controller P...

Page 326: ...Motor control signal Signal Pulse DUP XB Motor control signal Signal Pulse DPRS Signal Levels High 3 3V Low 0V NO PAPER DUP Signal from the Duplex Sensor Assembly This signal informs the paper pass a...

Page 327: ...oth ends with a pin number Block Diagram 1 OCT Block Diagram 2 Print Engine Controller PWB OCT PWB Figure 3 Table 2 3 OCT PWB Stack Full Sensor OCT Home Sensor OCT Exit Sensor Assembly and Direction S...

Page 328: ...T PWB P J 210 E6 Connects the Motor Drive Assembly to the OCT PWB P J 223 E6 Connects the Offset Motor Assembly to the OCT PWB P J 224 E7 Connects the OCT Harness Assembly SNR to the OCT PWB P J 225 E...

Page 329: ...0 7 30 DocuPrint N2125 Offset Catch Tray Initial Issue Wiring Data Block Diagram Figure 2 OCT Block Diagram Print Engine Controller PWB OCT PWB Figure 3 Table 2 Figure 3 Print Engine Controller PWB OC...

Page 330: ...for the OCT The signal is used to switch on the OCT for the reason that the OCT Harness Assembly M includes the signal lines for the Mail Box and is used commonly for the Mail Box This signal is sent...

Page 331: ...again when the end of the paper passes over Signal Levels High 3 3V Low 0V DIREXT SOL ON Control signal for the Direction Solenoid The solenoid is actuated when this signal is Low and holds the state...

Page 332: ...er Block Diagram 1 Envelope Feeder Block Diagram 2 Print Engine Controller PWB Connector PWB Envelope PWB Figure 3 Table 2 3 Envelope PWB Envelope Exit Sensor Assembly No Paper Sensor and Clutch Figur...

Page 333: ...e Sensor Harness Assembly to the Envelope PWB P J 413 C7 Connects the Clutch Harness Assembly to the Envelope PWB P J 414 C7 Connects the No Paper Harness Assembly to the Envelope PWB P J 415 H8 Conne...

Page 334: ...iring Data Initial Issue Block Diagram Figure 2 Envelope Feeder Block Diagram Print Engine Controller PWB Connector PWB Envelope PWB Figure 3 Table 2 Figure 3 Print Engine Controller PWB Connector PWB...

Page 335: ...gnal Names Signal Name Description EPRS This signal is High when the Envelope Feeder is not installed Signal Levels High 3 3V Low 0V NOPRE Signal from the No Paper Sensor This signal is High when all...

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