0420 recover hp protter - HP DesignJet 1050c InkJet Printer

RCm hyjacks end of last year.
ok but what is this thing,
low and behold it is a printer
why do you need firmware, is it failing in some odd way?
why risk bricking anything, if it works 100%
ok samsung sold the printer market to HP.com

quote.
As of Nov. 1, 2017, the Samsung Electronics Co., Ltd. printer business and its related affiliates were transferred to HP Inc. For Samsung printer support or service please visit : to https://www.support.hp.com

I went to HP for you,just now, and typed your model there
and yes it is there. but no firmware sorry, zero firmware.
if you want there forum is HUGE, ask them on their forum.

https://support.hp.com/us-en/drivers/selfservice/samsung-scx-4321-laser-multifunction-printer-series/16462420/model/16462422?sku=SS166A

code p 0300 refers to random /multiple cylinder/s ---misfire detected ===causes spark plug/s---HT lead/s ---injector/s --ignition coil/s ---low compression---wiring
code p 0316 refers to misfire detected during start up--first 1000 revolutions ===causes --engine mechanical fault ---wiring---ignition system---fuel system--injector/s
code p 0420 refers to cat converter system, bank 1---efficiency below threshold === causes cat converter---HO2S 2
code p 430 refers to the same problem and causes as code p 0420
Here is a news flash .
engines under the control of an engine control module (ECM) do not need you to do a tune up as it tunes the engine 60 times a minute and reports to you by fault codes when it can no longer tune up the engine

Check the thermistor or heater

There are numerous things that can cause this code to come up.First how many miles do u have? U have to make sure there are no exhaust leaks by the down stream O2 sensor. Also have to make sure there are no fuel delivery problems or vacum leaks. If u have access to a scanner for your vehicle u will have to look at your fuel trims and make sure they are around 0% at idle and off idle. Also have to make sure your O2 sensors are working correctly. Post some more info for your vehicle and i can guide u in the right direction

A real smorgasbord!
0420 is for the cat, so scrub that one. I could not find 0517-don't know what that means. 0551 and 0128 are sensor malfunctions, or circuit malfunctions for those two sensors (P/S pressure switch, and Coolant temp. sensor). Before going after that, take heed of 0622 and 0563: 0563 is system voltage too high, 0622 is generator field "F" control circuit malfunction. You have a bad voltage regulator in your alternator-putting out too much current. Try a different alternator-it may clear up the sensor malfunctrions, too.

Trouble code P0420 means: Catalyst System Efficiency Below Threshold

This is unrelated to the noise when turning sharply or the grinding when braking/brake light.

Preforming a system recovery to return the computer to its original condition may be necessary if the operating system is damaged, or the hard drive is corrupted, or the computer is infected by a virus.

___Also look this> HP expanded the battery pack recall on May 19, 2010. Click here to validate your battery. Performing a system recovery removes all software and files saved to the hard drive, reinstalls the original operating system, and then configures the settings for the default programs. Since the merger of Compaq and HP, several different recovery tools and processes Names for these tools include: Recovery Solution, Recovery Manager, F11, Recovery Disc, Driver and Application Recovery Disc, Roxio BackOntrack, Microsoft Backup & Restore. have been provided for recovering notebook PCs to their original operating condition. To help you select the correct recovery process, the table below identifies the different models, the time frame when they were produced and sold, plus the originally configured operating systems. Click on the name of the document in the right column for detailed information. Choose the Correct Recovery Process for Your Notebook Notebook description Recovery procedure information HP and Compaq Notebook PCs and Mini PCs shipped with a Windows 7 operating system. Recover Windows 7 Operating System Using HP Recovery HP and Compaq PCs using the Microsoft recovery feature for Windows 7 instead of an HP solution. Recover Windows 7 Operating System Using Microsoft Windows Backup and Restore Presario, Pavilion, and HP Compaq Business PCs shipped with a Windows Vista operating system. Recover Windows Vista Operating System Using HP Recovery HP and Compaq PCs using the Microsoft recovery feature for Vista instead of an HP solution. Recover Windows Vista Operating System Using Microsoft Windows Backup and Restore HP and Compaq Mini with Windows XP using the HP solution. Recover Windows XP Operating System On Mini Notebook Using HP Recovery HP and Compaq Mini with Windows XP using the Roxio recovery feature instead of the HP solution. Recover Windows XP Operating System Using Roxio BackOn Track HP and Compaq Mini with Mobile Internet Environment (MIE ). Recover Windows MIE Operating System On Mini Notebook Using HP Recovery Presario, Pavilion, and HP Compaq Business PCs manufactured and sold in 2006 or later . Recover Windows XP Operating System Using HP Recovery (2006 or Later)

Presario and Pavilion PCs manufactured from 2001 and 2005 . Recover Windows XP Operating System Using XP Operating System Discs (2001 to 2005)

And

Recover Applications Using Drivers and Applications Recovery Disc (2001 to 2005) Pavilion PCs with Windows Media Center edition of XP manufactured from 2001 to 2005 . Recover Windows XP Media Center Edition Operating System on HP Pavilion PCs Using HP Recovery (2001 to 2005) Compaq Presario PCs supplied with a Compaq Recovery CD and manufactured from 2001 to 2005 . Recover Windows XP Operating System on Compaq Presario PCs Using HP Recovery (2001 to 2005) Omnibook and certain Pavilion PCs manufactured pre-2001 . Recover Windows XP Operating System and Applications on HP Omnibook and Pavilion models Using HP Recovery (Pre 2001)

Here is something from a reference guide that we follow at my shop, hope it helps.

When diagnosing a PCM code PO420, be sure to determine the cause of the converter failure. Converters are not likely to fail without an external cause. Typical causes are: fuel pressure regulator leak, engine misfire, dirty fuel injectors, coolant consumption, etc. Also, be aware that some converters on the market will cause this code or codes due to a lack of oxygen storage capacity. A component that must be in these converters, Cerium, is required to store, then slowly release oxygen.

Hello engelhard58
I have attached a link that can give you some of the reasons why your getting that code.I hope you able to get your answer out of that.
Mean of the code=P0420 Catalyst System Efficiency Below Threshold.
Link to site

Don't have your HP designated as the default printer (if possible)when you hook up the Samsung. When the Samsung is hooked up it sees the HP is the default printer. Well it can't have that, they discard the HP drivers. What does Samsung care about HP drivers theres only one printer port setup and thats the USB port you have them sharing. So yes you need to get a second cable. Tim