HP LaserJet 5Si Service Manual

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Troubleshooting

Chapter Contents

Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Power-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Engine Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Display and Evaluate the Error Log . . . . . . . . . . . . . . . . . . . . 7-9

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Configuration Page Illustration and Key . . . . . . . . . . . . . . . . . 7-12

Menu Page Illustration and Key . . . . . . . . . . . . . . . . . . . . . . 7-13

Communications Link (C-Link) Cables . . . . . . . . . . . . . . . . . . 7-14

Image Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

Check the Toner Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

Faulty Image Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Print and Evaluate the Error Log . . . . . . . . . . . . . . . . . . . . . 7-17

Error Log Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Verify Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Verify Host System Operation . . . . . . . . . . . . . . . . . . . . . . . 7-20

Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

Paper Path Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

Customer Print Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

Control Panel Messages and Errors . . . . . . . . . . . . . . . . . . . . 7-23

Error Log Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24

General Paper Path Troubleshooting . . . . . . . . . . . . . . . . . . . 7-36

Image Quality Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-63

Image System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 7-73

General Troubleshooting Information . . . . . . . . . . . . . . . . . . . 7-76

Miscellaneous Problems and Solutions . . . . . . . . . . . . . . . . . . 7-76

Paper Curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-81

Reference Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-82

Troubleshooting 7-1

7-2 Troubleshooting

Troubleshooting Process

The troubleshooting process is a systematic approach that addresses the major problems first and then other problems as you identify the causes for printer malfunctions and errors. The Troubleshooting Process, Figure 7-1, on the following two pages, illustrates the major steps for troubleshooting the printing system. Each heading depicts a major troubleshooting step. A YES answer to the questions allows you to proceed to the next major step.

A NO answer indicates that additional testing is needed. Proceed to the referenced location and follow the directions for that area. After completing the additional testing, proceed to the next major step.

The following list describes the basic questions for the customer and the corresponding troubleshooting step to help you quickly define the problem(s).

Troubleshooting

Display

Page 7-9

Configuration

Page 7-10

Image Quality

Page 7-15

Error Log

Page 7-17

Communication

Page 7-19

Verification

Page 7-21

Does the display panel indicate Ready, Offline or PowerSave?

Contains the procedures for correcting control panel messages and displaying and correcting error log codes.

Will the printer print configuration pages successfully?

Contains the procedures for printing the configuration pages, and evaluating and correcting system configuration.

Does the print quality meet customer expectations?

Contains the image quality comparison tables, cleaning procedures, toner cartridge checks, and High-voltage Power Supply chec ks.

Are there recurring problems in the error log?

Contains information about printing the error log and evaluating the error history.

Can the customer print from the host system successfully?

Describes how to determine if the printer is communicating properly with the host system.

Will the printer print from all sources to all destinations, and have all of the errors in the errorlog been addressed?

Contains procedures for verifying the overall printer system operation.

Reference

Page 7-23

Contains detailed reference material such as the complete error code list, system schematics, a list of miscellaneous problems and solutions, and a list of all system sensors and their functions.

Troubleshooting 7-3

Figure 7-1 HP LaserJet 5Si / 5Si MX / 5Si Mopier Troubleshooting Process

7-4 Troubleshooting

Troubleshooting

Figure 7-2 HP LaserJet 5Si / 5Si MX / 5Si Mopier Troubleshooting Process

Troubleshooting 7-5

Power-On

Overview

It is important to have the printer’s Control Panel functional as soon as possible in the troubleshooting process so that the printer’s diagnostics can assist in locating printer errors.

Problem Action

1. Is AC power available at the printer’s power receptacle?

2. Is the printer’s ON/OFF switch set to ON?

3. Are the printer’s fans on? Ensure that the printer is not

in PowerSave mode (See Figure 7-3 to locate

the fans.)

Verify.

Push the switch to the ON position.

Note: Fan operation is significant since all fans are controlled by the printer’s DC Controller PCA. Operational fans indicate:

1. AC power is present in the printer.

2. DC power supply is functional (both 24vdc and 5vdc are being generated).

3. DC Controller PCA ’s micro-processor is functional.

YES

If the fans are NOT working, turn off the printer and remove the printer’s Formatter PCA. Disconnect all the printer’s paper handling options. Then turn on the printer and check the fans again.

If the fans are still not working, perform the following steps:

1. Verify that all f ans are connec ted to the DC Control ler PCA according to Figure 7-32

2. Replace the low-voltage DC power supply.

3. Replace the DC Controller PCA.

If the fans are working but the printer’s Control Panel is blank, print an engine test. See the section titled “Engine Test.”

If the engine test was successful, perform the following steps:

1. Reseat or replace the cable from the Control Panel which is

connected to J203 of the DC Controller PCA (see Figure 7-34).

2. Replace the printer’s Formatter PCA.

3. Replace the Control Panel assembly.

If the engine test was not successful, replace the DC Controller PCA.

7-6 Troubleshooting

Figure 7-3

Troubleshooting

Note

Fan Location and Airflow

When the printer is in PowerSave mode, the fans are off.

Fan Number Fan Name

1 Laser/Scanner fan Exhaust air flows from the back of the printer,

2 Low-voltage Power Supply Lower right-hand corner of the printer. 3 Formatter (intake) Intake fan directly above the input power

4 Face-down Delivery Unit Directly above the center of the fusing

Fan Location

on the left-hand side of the fusing assembly.

receptacle.

assembly.

Troubleshooting 7-7

Engine Test

The engine test verifies that the print engine is functioning correctly. The Formatter PCA is completely bypassed during an engine test. This test is very useful for isolating printer problems. The engine test prints a full page of horizontal lines across the entire printable area, and is also useful for checking and adjusting registration. The engine test prints from Tray 3 only, and can be activated with the Formatter PCA removed.

Note

Figure 7-4

Tray 3 must be installed and loaded with paper to perform an engine test. Also, ensure that the EP toner cartridge is installed in the printer.

Engine Test Button Location

The engine test button is located on the DC Controller PCA. It is accessible through a hole at the right rear of the printer.

Printing an Engine Test

To print an engine test, use a non-metallic object to press the engine test button (see Figure 7-4). A single test page will print.

7-8 Troubleshooting

Engine Test Button

Display

Overview

Use the printer’s Control Panel to access the error log to troubleshoot the printer. With the printer’s test menu, you can access the printer’s error log to display more information about the current error. The error log retains the printer’s last 50 error messages.

Note

Refer to the section titled “Reference” for more information about correcting printer error log messages.

The error log codes and the error on the display panel do not always correspond. The numbers in the display panel message may not be the same in the error log. Ensure that you refer to the correct number in the "Reference" section.

Display and Evaluate the Error Log

If the printer cannot print or move any paper, follow these steps to display the error log:

1 Press [Menu] until TEST MENU appears. 2 Press [Item] until SHOW ERROR LOG appears. 3 Press [Select] to show the error log. 4 Press + to scroll through the error log. 5 Write down the error messages. For example:

50 13.59.11 52700 EXTERNAL INPUT DEVIC

Error Log on Display Panel

13.11 PAPER JAM

Display Panel Message

Troubleshooting

50 = Error Number

13.59.11 = Error Log Code 52700 = Page Count

6 Check the error log for specific error trends in the last 10,000 printed pages. 7 Ask the customer for any observed error trends. 8 Record any specific error trends. 9 Refer to the error log table in the "Reference" section and follow the

recommended action.

10 If the display panel indicates any messages other than Ready, Offline or

PowerSave, restart at step 1. If not, go to the next section.

Troubleshooting 7-9

Configuration

Use the configuration pages to verify the proper installation of accessories, options, and personalities. When you print the configuration pages, the printer checks its internal controller and I/O interface, then prints two pages. One shows the overall printer configuration, and the one shows the current menu settings. Refer to Figure 7-5 for information about interpreting the configuration page. If any of the installed devices are not shown on the configuration pages, verify that the C-Link cabling is correctly connected and functional, and that DC power is available to the paper handling devices (Figure 7-7). Check and reseat suspect cable connections. If any of the cables are replaced, you must cycle the power to have the printer recognize the device again.

To print a PCL configuration page:

1 Press [Menu] until TEST MENU appears. 2 Press [Item] until PCL CONFIGURATION PAGE appears. 3 Press [Select] to print the configuration pages.

Verify that any installed options are present on the configuration pages.

Under Installed Personalities, look for options such as:

• Postscript (C2765A)

• 420 MB Disk (C2965A)

• SIMM types RAM or ROM and sizes.

7-10 Troubleshooting

Verify that the options which are physically installed in your printer are reflected in the PCL configuration page. If an installed device is not shown on the PCL configuration page, check the following table.

Device Action if installed and not detected

Duplex Unit Power-off, reseat or replace duplex unit and power-on. Envelope Feeder Power-off, reseat or replace envelope feeder and power-on. Device 1

2000 Sheet Input Unit Device 2

Multi-Bin Mailbox Device 3

Stapler Module

Verify C-Link cables are installed correctly, see Figure 7-7. Remove all C-Link connections and visually inspect for connector

damage on the cable pins and connector ends. Try using a different cable to connect the problem device directly to

the External Paper Handling Controller. All C-Link cables are wired the same, but are different lengths.

If a device is not recognized, replace device controller or defective C-link cable.

Device 1 2000 Sheet Input Unit

Device 2 Multi-Bin Mailbox

Verify AC power is present in the 2000 Sheet Input Unit. Note: The tray will not lift if C-link cable is not connected properly to

External Paper Handling Controller. Verify that the external DC power supply is receiving power.

Verify that the external DC power supply output is connected to the Multi-Bin Mailbox controller.

Note: The Multi-Bin Mailbo x wi ll not appear on the PCL configuration page without the C-Link cables properly installed or external power applied.

Replace external DC power supply. Replace Multi-Bin Mailbox controller.

After verifying that the PCL configuration pages accurately reflect the installed devices, proceed to the section titled “Image Quality.”

Troubleshooting

Troubleshooting 7-11

Figure 7-5

Configuration Page Illustration and Key

The default S/N is

AAXXYY99999. To set

the correct S/N, refer to the

SERVICE MODE procedure

in Chapter 3 of this manual.

Formatter and firmware’s

datecode and version

number.

The three most recent

error log messages

display here.

The MIO Block shows

network communication.

See Figure 7-9.

Check the

installed

memory to see

if it corresponds

with what is

physically

installed in the

printer.

All the paper handling

devices that are

physically present

should be listed in this

section. Verify that

each device is

connected according

to Figure 7-6.

When configured

correctly:

7-12 Troubleshooting

Device 1=2000 sheet

Device 2=Mailbox

Device 3=Stapler

Configuration Page Example

Figure 7-6

Menu Page Example

Troubleshooting

Menu Page Example

Troubleshooting 7-13

Figure 7-7

Communications Link (C-Link) Cables

Note

Communications Link (C-Link)Cables, Supported Daisy Chain Connections

All C-Link cables have a single dot molded into the device output connector cable end, and two dots molded into the device input connector cable end. The devices may not be recognized by the External Paper Handling Controller if the cables are not connected exactly as shown in Figure 7-7.

It is important that the C-Link cables are installed in the supported daisy chain configuration as shown in Figure 7-7. This is so that the devices are recognized and correctly reported on the error log.

Example: In the error log message "13.12.03", the last two digits ".03"

indicate that Device 3 has failed in the supported configuration:

Device 1 = 2000 Sheet Input Tray Device 2 = Multi-Bin Mailbox Device 3 = Stapler Module

It is possible, but not recommended, to attach the C-Link cables in other configurations. This will rearrange the supported device numbering. Keep in mind this configuration when evaluating the error log.

7-14 Troubleshooting

Image Quality

When you are working with customers, obtain a print sample before you begin troubleshooting their printer. Ask the customer to explain the quality they expect from the printer. The print sample will also help clarify the customer’s explanation.

Problem Action

1. Do you have a print sample?

2. Does the problem repeat on the page?

3. Is the toner cartridge full and is it manufactured by HP.

4. Is the printer clean? Perform the cleaning procedure described in Chapter 4 of this

5. Is the customer using print media that meets all HP paper specification standards?

6. Is the print sample similar to those in the Print Quality Tables in the “Reference.” section?

7. Is the problem on the drum or transfer roller?

Obtain a print sample from the customer.

Use the Repetitive Defect Ruler in the "Reference Section."

Check the toner cartridge using the check list on next page.

manual. For more information about HP’s paper specification standards, see

Chapter 1 of this manual and the

Specification Guide.

Compare and perform the actions recommended in the Print Quality Tables.

Perf orm the "Half Self Test" in the "Reference Section" to determine where the defect is.

HP LaserJet Family Paper

Troubleshooting

If the defect is on the drum, replace the Toner cartridge High Voltage Supply.

If it is not on the drum, replace the transfer roller.

Troubleshooting 7-15

Check the Toner Cartridge

Image formation defects are often the result of toner cartridge problems. If there is any doubt, always replace the toner cartridge before troubleshooting image defects.

Use the following check list to ensure that the toner cartridge is still operable.

• Ensure that the toner cartridge has toner.

Full toner cartridge weight = 3000 grams (106 oz) Empty weight = 2300 grams (80.5 oz)

• Check the expiration date of the toner cartridge (stamped on the cartridge

box).

• Check the toner cartridge to see if it has been disassembled or refilled.

• Ensure that the toner cartridge is seated properly in the printer cavity.

• Inspect the cartridge for leaking toner through worn seals. (If the drum has

been manually rotated it may have caused internal damage and toner spills may result.)

Note

Toner Cartridges are rated for 15,000 images at 5% coverage. It is possible to wear out the gears and the cartridge seals before TONER LOW is displayed if the 15,000 image expectancy is exceeded.

• Check the surface of the photosensitive drum in the cartridge to see if it has

been damaged or scratched. Touching the drum will contaminate the photosensitive surface and may cause spotting and defects during printing.

• White areas on the page may indicate that the drum has been exposed to

light for too long. If white areas appear, stop the printer and wait a few minutes. This should eliminate most defective images. If not, the toner cartridge may be placed in a dark environment for several days, which may restore some life to the drum.

Faulty Image Examples

The “Reference” section contains Image troubleshooting and sample image defects and their possible causes. Since there are many variables in the printing process, it is possible to encounter image defects that are not shown in the examples. If you find a defect that is not depicted, record the probable cause along with the printing environment conditions and save a copy of the defect for future reference.

7-16 Troubleshooting

Error Log

Use the error log to diagnose and troubleshoot printer errors and intermittent failures.

Print and Evaluate the Error Log

The printer’s internal error log stores the last 50 errors and can be printed at any time. To print the error log:

• Press [Menu] until TEST MENU appears.

• Press [Item] Until PRINT ERROR LOG appears

• Press [Select] to print the error log.

After printing the error log:

• Check the error log for specific error trends in the last 10,000 printed

pages.

• Ask the customer for any observed error trends.

• Record any specific error trends.

• Refer to the error log table in the “Reference” section of this chapter to

interpret error log codes.

Troubleshooting

Error Log Interpretation

The error log is the key tool in troubleshooting printer problems. Figure 7-8 shows a typical error log. The error log shows the current page count at the top center of the page, with the printer’s serial number directly to the right of the page count. The left column is the error sequence number, with the error listed at the top (the highest sequence number is the most recent error logged). The next column is the page count at the time of the error, and the last column is the Personality (PCL or PostScript) column or the Jam Cause at the time of the error.

The error log records all errors in a different format than the Control Panel Display. For example, should a 50.1 FUSER ERROR / CYCLE POWER be displayed on the Control Panel Display, the error log will record a 50.02.01 error, with the 02 signifying that 2 sensors were blocked. Likewise, when a

13.1 through 13.9 are displayed on the Control Panel, the error log will record a 13.0x.01 through 13.0x.09, where x = the number of sensors blocked in the printer.

When an error is detected in an Optional Paper Handling Device, a 13.11,

13.12 or 66.xx.yy will be posted to the Control Panel.

Troubleshooting 7-17

Figure 7-8

Whenever a 13.xx appears on the Control Panel, a good practice is to clear all the paper from the printer, take the printer offline, and print the error log. If you cannot print the error log, you can still display it on the display panel. Write the error next to the last error logged. The last error is the error at the top of the error log printout with the highest number in the leftmost column.

7-18 Troubleshooting

Error Log Page

To interpret the error log:

• Each individual entry in the log is called an "ERROR," with all errors

occurring at the same page count an "EVENT." Read the Recommended Action for each error comprising an event to gain a clear picture of what took place during that event. Events usually conclude with a timeout or no response from device (Error 66.nn.nn in printer logs) which requires a power cycle of the print engine.

• It is assumed that any Paper Handling Devices are connected as shown

in the C-Link Cable Diagram (Figure 7-7). The errors will be logged with different device numbers if any non-standard cabling is installed.

• Use the error log table in the “Reference” section of this chapter to

associate errors in the error log with the Control Panel error message. Follow the Recommended Action listed in the table for each error or event.

Communication

Ask the customer to run a print job from the host system. If the print job is successful, proceed to the following step, “Verification.”

Verify Communication

Figure 7-9

Print the PCL configuration page and study the HP MIO block. The MIO block will appear on the bottom portion of the configuration page. An example of a properly operating MIO block appears in Figure 7-9.

Node Name

I/OCard

Ready

IP Address

Network

Statistics

MIO block on Configuration Page

• If the MIO Jet Direct Card has successfully powered up and completed its

internal diagnostics, the "I/O CARD READY" message will appear. If communication is lost, an "I/O NOT READY" message appears followed by a two digit error code. Consult the HP JetDirect Network Interface Configuration Guide for further details and recommended action.

Troubleshooting

• The "Network Statistics" column indicate that the network activity has been

occurring. Bad packets, framing errors, un-sendable packets and collisions should be minimal. If a high percentage (greater than one percent) of these occur, contact the network administrator. All of the statistics are set to zero when the printer is powered-off.

• The "Novell Status" block should state the Novell printer server name to

which the printer is connected. If the node name reads "NPIxxxxxx" (xxxxxx=last six digits of the MIO’s LAN address), the MIO card has not been configured for a Novell server. This could indicate that the card is

Troubleshooting 7-19

operating under a IPX protocol other than Novell. Consult with the network administrator if the Node Name is not present.

• In the TCP/IP protocol block, the default IP address is "192.0.0.192." It is

acceptable to operate the printer with this default address. The error message, "ARP DUPLICATE IP ADDRESS" may appear in this block. This is also an acceptable error code if the TCP/IP protocol is not being used. Please check with the network administrator to determine the correct IP Address for the printer.

Verify Host System Operation

Try to print to another known working printer or move the failing printer to a known working location. Verify that the correct driver is installed and operating properly. Check with HP Service and Support in the User’s Manual to obtain the latest Windows and PostScript drivers.

Note

To display the printer driver version:

In the printer driver, select the Print Quality tab and click on About to display the printer driver revision level.

Verify Network and Server Operation

• Try to print the job to the printer’s parallel port.

• Try to print from the host system through the network to another printer.

Contact the network administrator for assistance.

7-20 Troubleshooting

Verification

Paper Path Test

Using the error trend information from Step 5 (Error Log), you may verify a specific printer paper path with the paper path test. You must first set the desired paper destination in the configuration menu and then select the paper path test. The paper path test menu will allow you to select the desired paper source and number.

Note

In order to perform the paper path test, the printer must be configured to mailbox mode. If the printer is not in mailbox mode, ask the JetAdmin administrator to change the configuration to mailbox mode to complete this test.

To perform a paper path test:

Set Destination and Duplex first:

• Press [Menu] until CONFIGURATION MENU appears.

• Press [Item] until PAPER DESTINATION appears.

• Press [+] to cycle selections until the desired paper destination appears.

• Press [Select] to select the desired destination for the Paper Path Test.

• To set duplex, press [Menu] until CONFIGURATION MENU appears.

• Press [Item] until 2 SIDED = XX appears.

• Press + to select duplex or single side.

Set Source and number of pages last:

• Press [Menu] until TEST MENU appears.

• Press [Item] until PAPER PATH TEST appears.

• Press [Select].

• Press [+] to cycle selections until the desired paper source appears.

• Press [Select].

• Press [+] to cycle selections until the desired number of images appears.

You can choose 1, 10, 50, 100 or 500 copies.

• Press [Select] to perform the Paper Path Test.

Troubleshooting

Troubleshooting 7-21

Figure 7-10

Note

7-22 Troubleshooting

Paper Path Test Source and Output Selection

Customer Print Job

Ask the customer to send a print job from the problem source(s) to the problem destination(s). Try to recreate the paper jam errors by having the customer do typical print jobs and the type of print job that has been causing the paper jams.

When verifying print jobs, ensure that all of the settings are selected as desired. Keep in mind that application settings take priority over Driver settings, which take priority over the the printer control panel settings. If a single setting is not present in the application, but is set in the driver, that will override the front panel settings.

JetAdmin does have capabilities to override paper types and sizes and certain conditions.

Reference

Control Panel Messages and Errors

Printer messages displayed on the control panel provide five categories of information. Each message category is assigned a priority. If more than one condition occurs at the same time, the highest priority message is displayed. When it has been cleared, the next priority message will be displayed, and so on. The displayed messages and their priorities are:

Note

• Catastrophic System Messages

• Service Messages

• Error Messages

• Attendance Required Messages

• Device Status Messages

Error, Service, and Catastrophic System messages are preceded by a number designation. Device Status and Attendance Required messages (except for paper jam messages) do not have a number designation.

The Error Log Table is organized by the display panel messages. All of the alphabetical messages are listed first, followed by numeric display panel messages. The error log codes (the second column) are in no order. They are merely listed with the associated display panel message.

Troubleshooting

Troubleshooting 7-23

Error Log Table

Message Error

Description Recommended

Log

Category/

Message

ACCESS DENIED Status After an attempt to select a locked-out

CANCELING JOB Status The printer is canceling the currently active

CLEAR JAMMED STAPLE Attendance

CLEARING PAPER FROM THE PRINTER

CLOSE PRINTER COVER Attendance

COPIES XX OF Y Status This message indicates the progress of the

Required

13.10.03

Status The printer is attempting to remove unusable

Required

function, this message displays for approximately 2 seconds.

job.

Staples are jammed in the stapler. To clear the jam, open the Stapler

paper. This may oc cur after you clear a paper jam.

One of the printer’s doors or its cover is not latched or seated properly. Interlock switches are connected to each door and the cover. For the Top Cover and Fuser Door, close SW1. The Ri ght Paper Path Door enables photosensor PS3 on the Pickup PCA of the Paper Input Unit (PIU).

current job.

Action

The JetAdmin Administrator controls the control panel lockout feature. Request from the administrator to unlock function.

No action required. If message displays for over 5 minutes, cycle power. An extremely large print job with detailed graphics may take up to five minutes to cancel.

Top Cover Assembly by pressing the green tab with your thumb and pulling the green circular tab with your forefinger (refer to Figure 7-11). Remove loose or damaged staples from the stapler . Push the circular tab to snap it back into place. Close the Top Cover Assembly. NOTE: If any staples are removed while clearing a staple jam, up to 12 documents may not be stapled when printing resumes because the stapler must reload. Check the Staple Cartridge. Replace it as required. Replace the Stapler Top Cover. Replace the entire stapler as required.

No action required.

Ensure the following are closed: Top Cover, Rear Fuser Access Door, and Right Paper Path Access Door (below Tray 1).

No action required.

7-24 Troubleshooting

Figure 7-11

Figure 7-12

Troubleshooting

Clearing Staple Jams

"Home" position gap.

When the output bin

is full, the flag blocks

the gap.

Scanbar and MBM Interlock Switch (SW1).

1 and 2 - Scanbar gaps. 3 - Multi-Bin Mailbox Interlock Switch

Troubleshooting 7-25

Message Error

Description Recommended

Log

Category/

Message

ENGINE TEST Status This message displays after the engine test

FORMFEEDING (The [On Line] LED flashes.)

HP MIO 1 INITIALIZING Status This message displays while the upper HP

HP MIO 2 INITIALIZING Status This message displays while the lower HP

HP MIO 1 NOT READY Status The upper MIO card is not ready. One of two

Status A form feed is in process. No action required. When the

button is pressed and indicates that the engine test is in process. If the test fails, an error or attendance message displays.

MIO card initializes. The printer supports I/O switching and remains online, but the channel is not active during initialization. NOTE: Since older MIO cards cannot remove the message, the printer will remove the message after a 5-minute timeout.

situations may occur. First, the parallel port and the lower MIO card may continue to operate nominally. If the upper MIO card is operating correctly and communicating with the network, this message will disappear after approximately one minute. No action is required. Second, if the upper MIO card is unable to communicate with the network, this message will display for five minutes and then disappear. In this case, the printer is not communicating with the network, even though the message is no longer displayed.

Action

No action required. Refer to the Power On section for more information about performing an engine test.

paper reaches the destination output bin, the [Ready] message displays and the [On Line] LED returns to a steady state.

No action required. If the message displays after five minutes, a problem may exist in the network card, the network configuration, or with the host. For more information about the MIO card, refer to your network documentation.

The problem may be a bad MIO card, bad cable or connection on the network, or a network problem. For more information about the MIO card, refer to your network documentation. Verify that the product numbers for the MIO card is supported by printer.

7-26 Troubleshooting

Figure 7-13

Troubleshooting

High-voltage Power Supply contacts

1. Primary Charging Roller Connector

2. Toner Registration/Toner Sensor

3. Developing Roller Bias Connector

4. Drum Ground Connector

Troubleshooting 7-27

Message Error

Description Recommended

Log

Category/

Message

HP MIO 2 NOT READY Status The lower MIO card is not ready. One of two

INPUT DEVICE FEED PATH OPEN

INPUT OPERATION CONDITION xx.1y

Attendance Required

situations may occur. First, the parallel port and the upper MIO card may continue to operate nominally. If the lower MIO card is operating correctly and communicating with the network, this message will disappear after approximately one minute. No action is required. Second, if the lower MIO card is unable to communicate with the network, this message will display for five minutes and then disappear. In this case, the printer is not communicating with the network, even though the message is no longer displayed.

An external input device such as the 2000-Sheet Input Tray (Tray 4) is disrupting the paper path. The opening and clos ing of the Tray 4 Vertical Transfer Door should cause this message to be displayed (the closed door "blocks" PS35).

An external input device has a condition that needs to be corrected before printing can continue.

See error log 13.17.11 -13.59.11

Action

Check feed path, covers and doors on external input device(s). Check PS35 on the vertical transfer assembly.

Check the indicated input device and correct the error condition. Cycle power and print PCL configuration pages to verify all devices are shown in printout. See Figure 7-5.

INPUT TRAY = ALL TRAYS Status The printer will pull paper from all available

INSTALL TONER CARTRIDGE

INTERNAL TEST Status The printer is executing a non-printing self

Attendance Required

paper trays. The toner cartridge is missing or installed

incorrectly. The print engine detects the presence of the toner cartridge by reading the voltage at the Toner Registration/Toner Sensor on the High-voltage Power Supply. For sensor location on the power supply, refer to Figure 7-13. The contact can be ac ces s ed from the right-hand side wall of the toner cartridge cavity in the printer.

test.

7-28 Troubleshooting

No action required.

Ensure the toner cartridge is seated properly, or install a new toner cartridge, ensuring it is seated properly. If the error persists: Check functionality of the toner cartridge and High-voltage Power Supply contacts (refer to Figure 7-13). Replace the toner cartridge. Replace the High-voltage Power Supply.

No action required. If this message displays for over three minutes, first cycle power. If this persists, verify that the Formatter connections are secure. Then remove all optional SIMMs and MIO(s).

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