The cassette paper sensor SR detects whether media is present in the cassette, and the cassette media sensor detects the type of media. The toner can be easily smudged until the heat and pressure of the fusing process fix the image to the sheet. Page Release four locking tabs callout 1 , and then remove the engine-test print switch callout 2. For instructions to clear jams, see Clearing jams on page Image defects If specific defects occur repeatedly, print a Print Quality Troubleshooting page and follow the instructions on the first page.

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Right cover Remove the following components: Remove two screws callout 9 from the left side of the assembly. Most HP LaserJet printer with image defects printing bad copies, dots, lines, smears, paper jam in the fuser, paper jam in the tray, hp color laserjet 3000n jam coming out, picking up multiple sheets of paper at once, Drum-rotation test The photosensitive drum, located in the print cartridge, must rotate in order for the print process to work.

Individual Diagnostic Tests 2, Print The Event Log Figure Door switch and fuser interlock NOTE Any time that a cartridge is installed or removed while the covers are removed, the door interlock must be cycled to simulate opening and closing the top cover in order for the engine to recognize the change. Javascript is disabled in this browser. Hp color laserjet 3000n Read Edit View history.

Page Remove all of the wire-harnesses from the guide callout 6. Troubleshoot the problem by using the procedures in chapter 6. To change the paper-type setting, see Type and Size. Drum Cleaning Step Hp color laserjet 3000n Duplex-feed-drive assembly on page hp color laserjet 3000n If the printer is not connected to an MS-DOS-based host, use the following table to check the connection.

Do not bend or fold the FFCs during removal or installation. Hewlett-Packard Company recommends the use of genuine HP products in this printer. Figure Remove the front cover 4 of 7 Use a small flatblade screwdriver to release the wire-harness-cover locking tab callout 5 Page 92 Support the door and remove four screws callout 6.

NOTE Two of the screws have washers attached to them.

To continue press XX Description: Use a small, pointed object to depress the test-page switch on the back of the printer. Release the locking tab callout 3 at the upper front of the left cover. HP does not support repairing individual subassemblies or troubleshooting to the component level. When hp color laserjet 3000n correctly, the metal contacts are not visible.

Best of all we offer 1 year warranty on all refurbish HP printer products.

You can hp color laserjet 3000n HP Web Jetadmin or the embedded Web server to configure the system to alert you of problems with the printer. A cold reset does not clear the values in the Service menu, such as the serial number and the page counts.

See Electrostatic transfer belt ETB on page Remove two screws callout 1 and the paper and registration sensor covers callout 2. Figure Remove the sheet feeder left cover 1 of lasfrjet TIP: Hp color laserjet 3000n defects fall into the following categories. Printer control panel Front hp color laserjet 3000n This part is called the front cover in this service manual. The fuser might be hot.

The DC controller reads data at the following times: Figure Remove the rear lower cover 1 of 2 NOTE Step 2 is only necessary if you are removing the rear upper cover or installing a replacement hinge bracket. Left cover Remove the following components: Page Remove one screw callout 2 to release the fan. Page Remove the power-switch arm. np

HP Toner, HP Supplies and HP Parts

Time spent attempting to resolve these problems might not be covered by the Hewlett-Packard warranty. The ETB assembly can be open, closed, or removed while some of these tests are executing. Install the replacement formatter and then turn the power on. Print-quality problems that are related to the environment If the printer is operating in excessively humid or dry conditions, verify that the printing environment is within specifications.

Remove one screw callout 2. Jam inside the front cover NOTE: Figure Remove the low-voltage power-supply PCA 1 of hp color laserjet 3000n Remove four screws callout 2and then remove the sheet-metal shield callout 3.

The sheet hp color laserjet 3000n to the belt and travels between the Hp color laserjet 3000n engaged motor and the attraction roller. During Inspect the T2 pick-roller left-cam a checking-printer cycle, the printer retention claw. Page Remove the cover by releasing the two rear locking tabs. To continue turn off then on 04 Main fan Replace the fan.

Verify that the printer is plugged directly into an active electrical outlet that has the correct voltage and not plugged into a surge protector or power strip.

Resolution Changes the resolution settings, including the REt setting. Turn the printer off.

HP LaserJet Printer Model Cross Reference

Figure Remove hp color laserjet 3000n sheet feeder left cover 1 of 5 Hint Before proceeding, look at the following figure and note the location of the locking tabs on the left cover. Page Disconnect four connectors callout 4 and remove three screws callout 5.

Page Use a small flatblade screwdriver to release the top cover on the —sheet hp color laserjet 3000n pickup-and- feed assembly, and then remove the cover. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

Page 51 – Replacing supplies Page 52 – replacing the fuser Page 53 – Managing the print cartridge Page 54 – Checking the supply level Page 3000b – To replace 33000n print cartridge Page 56 Page 57 – Cleaning the printer Page 58 – Hp color laserjet 3000n the printer Page 59 – Tools for troubleshooting 3 Page 60 – Configuring e-mail alerts 4 Page 61 – To open the embedded Web server by using Prints a series of print-quality assessment pages that help troubleshoot many print-quality problems.