Question about HP LaserJet 4350 Printer

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DC Controller Replacement

I replaced the DC Controller, because my Duplexor quit working. The controller was used from a 4250. Now when I print the config sheets they list the previous printers info: product name, S/N:, etc. How can I update this for the current 4350 laser?

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Re: DC Controller Replacement

You have to conact the solution center in your location. You have to provide the printer config page, they will give you the file which you have to upload to the printer . Then it will behave as the LJ 4350.

Posted on Nov 02, 2007

Re: DC Controller Replacement

If u still able to install through usb cable install it ,then goto its respective tool fix softwere.There u select ipconfig try to give ip from u .restart and again reinstall.

Posted on Sep 22, 2007

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59.40 error is displayed says restart would you help me about this problem plaese?

Catridge drive motor functional error. check with another cartridge & confirm.
Open top cover & right cover check motor connector J121 & J86 at dc controller board if fine, primary level motor replacement secondary level DC controller.

Sep 22, 2011 | HP 4250 Monochrome LaserJet Printer

1 Answer

51.10 error

Thank you for contacting FixYa. I have been working on some archieved inquiries that may have gone unanswered. Your issue is a beam detect error with your laser scanner.

HP LASER PRINTERS 4200, 4300, 4250, 4350 ERROR 51.XX

1. Printer has a beam detect error

2. Replace the cable ***'y from scanner to D.C. controller

3. Replace the scanner ***'y

4. Replace the D.C. controller.

Aug 25, 2011 | HP LaserJet 4350 Printer

1 Answer

MY PRINTER hp laserget 4250 dtn is displaying 57.4 error when I turned it on, what can I do? I am ofetn requested to suitch off and then to switch on but it fails to mark " Ready"

57.4 Main fan error

Hi I hope this will help

The text come from the hp manual

good luck Ian

Q2431-90912 Chapter 7 Troubleshooting 287



To continue turn off then on







A printer fan is not functioning.

X Description

3 EP cartridge fan, right side

(LJ 4300 only)

4 Main cooling fan, left side

Turn the printer off and then on.

57.3 Cartridge fan error (F2)

1. Reconnect the connector

between the fan and the

DC controller PCA

(location J78).

2. Replace the fan. See "Cooling

fan (right side;

HP LaserJet 4300 series

printer only)" on page 170.

3. Replace the

DC controller PCA. See

"DC controller PCA" on

page 181.

57.4 Main fan error (F1)

1. Reconnect the connector

between the fan and the

power supply.

2. Verify that the ribbon cables

are fully seated in the

connectors on the

DC controller PCA.

3. Replace the fan. See "Main

cooling fan (left side)" on

page 168.

4. Replace the power supply.

See "Power supply" on

page 188.

5. Replace the

DC controller PCA. See

"DC controller PCA" on

page 181.



The cooling fan in the optional

duplexer is not functioning.

1. Turn the printer off and then

2. Replace the duplexer.

Mar 25, 2011 | HP LaserJet 4250dtn Printer

1 Answer

I have a hp laserjet 4250 printer it had a paper jam in tray 2 i have cleared the jam but it keeps saying i still have the jam in tray 2

There is still paper stuck in the printer. try lifting the printer off of tray 2 to inspect it or here it is straight from the service manual...

Jams in tray 2

Table 7-10 Causes of tray 2 jams

Cause Solution

The feed or separation rollers are dirty, worn, or damaged. Clean the rollers. If they are dirty after cleaning, or if they are

worn or damaged, replace the rollers.

The pickup roller is worn or damaged. Replace the pickup roller.

The tray 2 paper pickup assembly drive gears are damaged

or the assembly is defective.

Check the drive gears in the paper pickup drive assembly.

Replace the pickup drive assembly if the gears are

damaged. See Paper-pickup drive assembly.

The tray 2 pickup solenoid (SL101) is damaged. 1 Disconnect the connector for the tray pickup solenoid

from the dc controller PCA (location J92).

2 Measure the resistance between the cable connectors.

3 If the measured resistance is not approximately

160 ohms for the HP LaserJet 4200/4300, or 110 ohms

for the HP LaserJet 4250/4350, replace the tray 2

pickup solenoid.

The tray 2 lifter-drive assembly or the stack position

sensor (PS107) is defective.

Replace the lifter-drive assembly. See Tray 2 lifter-drive

assembly and/or Printer switches and sensors.

The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.

Dirty, worn, or deformed pick-up roller, cassette separation

roller, and cassette feed roller.

Clean the rollers if they are dirty. Replace any worn or

deformed rollers. The cassette separation roller and the

cassette feed rollare are to be replaced together.

Damaged gears in the cassette pick-up drive unit. Move the gears in the cassette pick up drive unit. If the

gears are not rotating correctly, or are damaged or worn,
replace the cassette pick-up drive unit.

Dec 25, 2010 | HP LaserJet 4250 Printer

1 Answer

Install hp4600 dc controller

This is not exactly an easy task. But here are the step by steps
The following procedures explain the removal and replacement of internal components DC controller shield 1 Remove the following assemblies: ● Print cartridges and ETB.(ETB Is the black belt) ● Rear cover. ● Top cover. ● Rear top cover. ● Left cover. 2 Remove nine screws (callout 1). A tenth screw might be located on the rear of the printer at the bottom of the DC controller shield (callout 2). If that tenth screw is present, remove it. 3 Remove the DC controller shield. c0a7a70.jpg
Behind this shield is the DC controller board; It has quite a few wires connected to it, as it's the main controller for the printer.
1089df3.jpg Be sure to reconnect every wire or the printer will not work.
The correct Part Number for the LJ4600 (only) for the Dc controller is RG5-6391.
Good luck :)

Aug 31, 2009 | HP LaserJet 4600 Printer

2 Answers

59.40 error code

That's a main motor error, something could be jammed in transport, or a generic toner cart. that is too hard to turn, try powering on with toner removed...

Aug 20, 2009 | HP 4250 Monochrome LaserJet Printer

2 Answers

Error 60.20 hplaserjet 4250

After powering up the printer, a 60.2 error is displayed on the control panel. Even after power cycling the printer, the error does not clear. This error indicates that tray 2, and the lifter-motor for tray 2, are not functioning.
Follow the steps in the Solutions section before changing the lifter and DC Controller PCA.
Complete the following steps, testing the printer after each step to determine if the issue has been resolved:
  1. Turn the printer off and then power it back on again.
  2. If the error persists, turn the printer off.
  3. Verify that the tray 2 lifter wire-harness is fully seated in its connector on the DC controller PCA. Test the printer.
  4. Check the tension of the spring in the lifter. If the tension is not correct, replace the spring (RC1-0198-000CN). Test the printer.
  5. Replace the tray 2 lifter-driver assembly. Test the printer.
  6. Replace the DC controller PCA. Test the printer.

Jun 07, 2009 | HP LaserJet 4250dtn Printer

3 Answers

57.70 error for hp colorlaserjet 9500n

this is the fuser fan error replace them ur problem will be resolved

Nov 25, 2008 | HP LaserJet 9500n Printer

3 Answers

HP 4350 downgraded to a HP 4250

Is this affecting performance? Try new firmware.

Mar 20, 2008 | HP LaserJet 4350 Printer

4 Answers

Error 60 02 on a HP LJ 4250DTN

printer error
The tray 2 lifter-motor is not functioning. 1 Turn the printer off and then on.
2 If the error persists, turn the printer off.
3 Verify that the tray 2 lifter wire-harness
is full seated in its connector on the
dc controller PCA (location J93).
4 Replace the tray 2 lifter-driver
assembly. See Tray 2 lifter-drive
5 Replace the dc controller PCA. See


Jan 10, 2008 | HP LaserJet 4250dtn Printer

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