Xerox Phaser 3155 User Manual

							Phaser 3140/3155/3160 Printer Service Manual4-5
General Troubleshooting
Supplies Information Report/Error Information Report
s3160-122
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							4-6Phaser 3140/3155/3160 Printer Service Manual
General Troubleshooting
s3160-156
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							Phaser 3140/3155/3160 Printer Service Manual4-7
General Troubleshooting
Cleaning Page
s3160-118
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							4-8Phaser 3140/3155/3160 Printer Service Manual
General Troubleshooting
Servicing Instructions
The service checklist below is an overview of the path a service technician should 
take when servicing the printer and printer optional equipment.
Step 1: Identify the Problem
1. Verify the reported problem exists.
2. Print normal customer prints and the printer Demo page.
3. Make note of any print-quality problems in the test prints.
4. Make note of any mechanical or electrical abnormalities present.
5. Make note of any unusual noise or smell coming from the printer.
6. Is the Online LED on? If not check that the power cable, Control Panel, and Power Supply are connected correctly.
7. Verify the AC input power supply is  within proper specifications by 
measuring the voltage at the electric outlet while the printer is running.
8. Does the drive motor or other components initialize (listen for the  motor and fan)? If not, check the for proper connections.
Step 2: Inspect and Clean the Printer
1. Turn the printer power Off.
2. Disconnect the AC power cord from the wall outlet.
3. Verify the power cord is free from damage or short circuit and is connected properly.
4. Remove the Print Cartridge and protect it from light.
5. Remove the Transfer Roller.
6. Inspect the printer interior and remove any debris such as paper clips,  staples, pieces of paper, dust, or loose toner.
7. Do not use solvents or chemical cleaners to clean the printer interior.
8. Do not use any type of oil or lubricant on the printer parts.
9. Use only an approved toner vacuum.
10.Clean all rubber rollers with a lint-free cloth, dampened slightly with  cold water and mild detergent.
11.Inspect the interior of the pr inter for damaged wires, loose 
connections, toner leakage, and damaged or obviously worn parts.
12.If the Print Cartridge appears damaged, replace with a new one.
Step 3: Check the Installation Environment
1. Ensure the installation surface is flat, level, and free from vibration. If necessary move the printer.
2. Ensure that the temperature and humidity of the surroundings are  within specification. If necessary, move the printer.
3. Ensure that the printer is positioned away from any air conditioning or  other heating or cooling equipment. Also ensure that it is not 
positioned in a direct draft from any air conditioning, fan, or open 
window. If necessary move the printer.
4. Ensure the printer is not positioned in direct sunlight. If it is  unavoidable, use a curtain to shade the printer.
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							Phaser 3140/3155/3160 Printer Service Manual4-9
General Troubleshooting
Measurement Techniques
1. Unless indicated otherwise, the instruction “switch On printer power” means 
for you to switch On printer power and let the printer proceed through Power 
On Self Test (POST) to a ‘Ready’ condition.
2. Conventions used in this manual to represent connectors
3. When instructed to take voltage, contin uity, or resistance readings on a wiring 
harness, proceed as follows; Check P/J 232–1 to P/J 210–5 by placing the red 
probe (+) of your meter on pin 1 of P/J 232, and place the black probe (–) of 
your meter on pin 5 of P/J 210.
4. When you are instructed to take resistance readings between “P/J 232  P/J  210” (without specified pin numbers), check all pins. Refer to the section 
“Wiring” for the location of  all wiring harnesses and pins.
5. When you are instructed to take a voltage reading, the black probe (–) is  generally connected to a pin that is eith er RTN (Return) or SG (Signal Ground). 
You can substitute any RTN pin or test point in the printer, and you can use FG 
(frame ground) in place of any SG pin or test point.
6. Before measuring voltages make sure the printer is switched On, the  consumables and the paper trays are in place, and the interlock switch is 
actuated, unless a troubleshooting procedure instructs otherwise.
7. All voltage values given in the troubleshooting procedures are approximate  values. The main purpose of voltage readings is to determine whether or not a 
component is receiving the correct voltage value from the Power Supply and if 
gating (a voltage drop) occurs during component actuation. Gating signals 
may be nothing more than a pulse, resulting in a momentary drop in voltage 
that may be difficult or impossible  to read on the average multi-meter. 
8. When a troubleshooting procedure instructs you to replace a non-spared  component and that component is part of a parent assembly, you should 
replace the entire parent assembly.5. Ensure the printer is installed in a clean dust free environment. Move 
the printer to a clean area if necessary.
6. Some industrial or cleaning processes give off fumes which can affect  the printer. Move the printer away from this type of air pollution.
Step 4: Find the Cause of the Problem
1. Use the troubleshooting procedures to find the cause of the problem.
2. Use the Wiring Diagrams and Plug/Jack Locator to locate test points.
3. Take voltage readings as instructed in the appropriate troubleshooting procedure.
Step 5: Correct the Problem
1. Use the Parts List to locate a part number.
2. Use the Disassembly procedures to replace the part.
Step 6: Final Checkout
1. Test the printer to be sure you have corrected the initial problem and there are no additional problems present.
P/Jxx
YY
Plug and Jack
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							4-10Phaser 3140/3155/3160 Printer Service Manual
General Troubleshooting
9. Ensure that you are using a supported media size and type.
10. Power and signal grounds are connected to the frame ground. All circuit  troubleshooting can be performed usin g the metal frame (chassis) as the 
grounding point. To locate connectors or test points, refer to the “Wiring” 
section for more information.
Unless otherwise specified, the following voltage tolerances are used within 
this section:
Media-Based Problems 
1. Check that the correct type of media is  being used; for the correct media types 
and weights, see “Media and Tray Spec ifications” on page 1-16. The customer 
should use a quality laser printer paper. The printer may have trouble picking 
glossy or overly smooth paper.
2. Inspect the paper for bent, torn, or folded corners.
3. Check the paper path for obstructions or debris.
4. Ensure that the paper guides are set correctly.
5. Ensure that the media is a supported type for the tray. See “Media and Tray  Specifications” on page 1-16, for the correct media types, sizes, and weights 
fo r e a ch  tray .
6. Load a fresh ream of paper in the tray.
Mis-Pick
1. Check that the correct type of media fo r the tray is being used and the paper 
guides are set correctly. See “Media and Tray Specifications” on page 1-16.
2. Remove, fan, and reload the media. Ensure that the tray has not been over  filled.
3. Try loading paper from a fresh ream, fan the paper, and then insert into the  tray or flip existing paper over.
4. Clean the Feed Rollers with a clean, dry, lint-free wipe. If necessary, replace the  Feed Rollers (page 8-38).
StatedMeasured
+3.3 VDC +3.135 to +3.465 VDC
+5.0 VDC +4.75 to +5.25 VDC
+24.0 VDC +21.6 to +26.4 VDC
0.0 VDC Less than +0.5 VDC
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							Phaser 3140/3155/3160 Printer Service Manual4-11
General Troubleshooting
Inoperable Printer Troubleshooting
The Printer is Not Responding to the Print Command
The printer is On, but does not respond after a print command is sent.
1. Print the Print Demo page (page 4-2). If  the page prints correctly the problem 
is not in the printer.
2. Check that the computer and the printer are properly connected. a. Reconnect the cable(s) if not properly connected.
b. Replace the cable(s) if damaged.
3. The printer does not print from Windows environment. a. Check that the printer driver is set up correctly.
b. If the printer driver is properly set up, try printing a test page from the  driver properties.
c. Check on which program is not printing.
d. If no applications can print, open Notepad and send a print job using  Notepad.
e. If the problem is within a single appl ication, adjust the printing properties 
within that program.
f. If changing the properties in the application print dialog box does not  solve the problem, uninstall an d reinstall new printer driver.
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							4-12Phaser 3140/3155/3160 Printer Service Manual
General Troubleshooting
Power Supply Troubleshooting
Wa r ni n g
Hazardous voltage is connected to the wall outlet. 
AC Power Troubleshooting
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■Power Supply, PL1.0.1■Map 4 - 110V and 220V Power Supply 
Boards
Troubleshooting Procedure Table Step Actions and Questions Yes No 1 Check the voltage at the AC wall outlet.
Is there approximately 110 VAC (or 
220 VAC if the printer is a 220 V 
configuration) at the AC wall outlet? Go to step 2. Notify the 
customer of 
improper AC 
output from 
the outlet.
2 Check the power cord for defects or loose 
connection.
Is the Power Cord loose or defective? Replace or 
reconnect 
the Power 
Cord.Replace the 
Power 
Supply 
(page 8-54).
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							Phaser 3140/3155/3160 Printer Service Manual4-13
General Troubleshooting
No Power
When the printer is turned On, no activity is detected.
Wa r ni n g
Hazardous voltage is connected to the Power Supply.
Initial Actions
• Cycle printer power.
• If problem persists, refer to the following procedure.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■Power Cord, PL1.0.13
■Power Supply, PL1.0.1
■Controller Board, PL1.0.2
■Map 1 - Controller Board (3140)
■Map 2 - Controller Board (3155)
■Map 3 - Controller Board (3160B/
3160N)
■3140 Power Supply Wiring
■3155 Power Supply Wiring
■3160 Power Supply Wiring
Troubleshooting Procedure Table  Step Actions and Questions Yes No 1 Check the connection to the wall outlet.
Is the printer connected to the outlet? Go to step 2. Connect to 
the wall 
outlet.
2 Check the condition of the Power Cord.
Is the Power Cord damaged? Replace the 
Power Cord.Go to step 3.
3 Check the wall outlet.
Is the proper supply voltage present? Go to step 4. Use a 
different 
outlet.
4 Check the output supplies on the Power 
Supply.
Check for +24 V at each of the following 
pins: CON2-5, 6, 9, 10, and 12.
Check for +5 V at CON2-8, 15, and 16.
Is the correct voltage present at each 
pin? Go to step 5. Replace the 
Power 
Supply 
(page 8-54).
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							4-14Phaser 3140/3155/3160 Printer Service Manual
General Troubleshooting
5
Check and reseat th e wiring harness 
between the Power Supply CON2 and 
Controller Board CN5 (CN7 on model 
3160).
Is the wiring harness damaged? Repair the 
harness.
If the 
problem 
persists, go 
to step 6Go to step 6.
6 Check and reseat th e wiring harness 
between Control Panel CN1 and 
Controller Board CN8 (CN9 on model 
3160).
Is the wiring harness damaged?  Repair the 
harness.
If the 
problem 
persists, go 
to step 7.Replace the 
Controller 
Board 
(page 8-51).
If the 
problem 
persists, go 
to step 7.
7 Replace the Control Panel (page 8-51). Complete.
Troubleshooting Procedure Table  (Continued)
Step Actions and Questions Yes No
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