Sheeeesh! A new problem every minute...

Old HP cartridges had hacks and required shorting of pins on the cartridge, etc.

Don't know if there is on the newer cart. systems, but if there is a search will find it.

That is how I found reset info on the old B size printer I have.

=A0 =A0 ...Jim Thompson

=A0 =A0| =A0 =A0mens =A0 =A0 |

=A0 | =A0 =A0 et =A0 =A0 =A0|

=A0|

=A0 =A0 =A0 |

I found the following here:

JW - 11/15/2010 at 05:29

"21 I ran your hpfix.exe patch for my K850 printer, and though it found and modified the driver file, it did not change =93SET TIMESTAMP=94 to =93SET TIMESTAMX=94 as in your notes=85it changed another byte in a very different location. Thankfully, your [R]estore option worked to put things back the way they were. Then I used a binary editor on the same driver file (Hpz3r42i.dll), and manually changed =93@PJL SET TIMESTAMP=94 to =93@PJL SET TIMESTAMX=94 as in your notes, restarted, and now it works fine =97 no more ink expiration errors! Thanks! [HP tech. support & mgmt. was absolutely a waste of time on this -- no respect for even good customers. Will avoid all HP in future.]"

Apparently the complicated fix didn't work but editing the timestamp file does.

Worst case, if it goes sideways on you, you can always use the "Restore" option, but you're back to square one.

Some claim that you can power down and disconnect the printer, reset your PC clock, then reconnect and turn on the printer to fool it into thinking the cartridges are younger than they really are.

I have not tried any of these tricks; I quit using HP printers a couple of years ago.

Good luck!

Mark L. Fergerson

The HP chips in the cartridge don't look at computer time, only pico drops dispensed. You can hack that but you still need to put ink in them.

Tom

I read up on this issue once and saw that there had been some interesting legal skirmishes.

One company that made and sold a way to bypass the printer maker supply scam got in trouble for reverse engineeering under DMCA.

Then one or two US states FOUGHT BACK by passing laws requiring that printer cartridges MUST be refillable BY THE CONSUMER as a landfill or recycling issue.

It actually seems like the whole computer printer market has been in a slump because so many consumers are so ticked off about this in/toner proprietary cartridge scam.

I'd like to see the whole ink/toner proprietary supplies scam come to a halt.

Standardized cartridges that are designed to be refilled would cut down on massive waste in landfills, both for the machines and the supply cartridges.

What standards organization would have to design a few basic standardized cartridges for something like that to work?

EIA? JEDEC? or what?

Hold POWER while pounding on the Paper Feed button 3 times. That is rumored to work on the OfficeJet Pro K850. However, I've never actually tried it.

If that fails, toss the piece of junk and buy a real laser printer.

11x17 large format laser printers are not commodity items, but are available (used) for tolerable prices. Some copiers also will do 11x17 and can also print via USB or preferably ethernet.

Look at the HP LaserJet 5200dtn (dtn = Double sided, 2nd Tray, Network) for about $700 used on eBay.

For 8.5x11, I like the HP LaserJet 2300dtn for about $250 used on eBay.

--
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Try the following: take them out as if you were going to put new ones in. Then put them back in and lie,saying you put new ones in. This works on some of the "older" HP & Lexmart printers.

Agreed. I've three Xerox 5400 laser printers, which will do 11x17 full bleed easily. Their prices on the used market is very good, and the toner cartridges are very long life (20K images.) As well, they do (with a simple upgrade) full duplex for double sided work--we do our instruction sheets on one of these (hundreds at a time) and the results are great.

--
I'm never going to grow up.

I've had bad experience with ink-jets that are infrequently used. I'd print something, and a month (or more) later I'd want to print the next thing and the heads were clogged. A few years back I gave up an bought a cheap laser (Brother HL-1440). Couldn't be happier... but of course it won't do color.

Best regards,

Bob Masta DAQARTA v6.02 Data AcQuisition And Real-Time Analysis

Scope, Spectrum, Spectrogram, Sound Level Meter Frequency Counter, FREE Signal Generator Pitch Track, Pitch-to-MIDI Science with your sound card!

Some of the older ones could only store two carts code in memory. If you had three and rotated the first would look like a new one.

I had an extra satisfying moment this morning. I took the HP inkjet printer to the waste disposal depot. Inkjet is total crap if you don't use it everyday. And if you print everyday then laser is cheaper. I got a nice all in one laser printer (B&W) from HP.

--
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
--------------------------------------------------------------

Thanks, Jeff! I'll try that.

I have a P2015dn that keeps happily plugging along... fingers crossed :-) ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
I love to cook with wine.     Sometimes I even put it in the food.

I have a P2015dn laser that still works nicely... the K850 was for occasional 11"x17" drawings for me, but mostly color stuff for Girl Scouts, which my wife no longer needs, so I may just toss the dude and get the occasional color need done at OfficeMax or Staples. ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
I love to cook with wine.     Sometimes I even put it in the food.

I use those for cash registers and invoice printing. They're not the best available but they do work. About 3000 pages per cartridge with a conservative refill.

I've seen some electronics failures on the PCB and some gouged fuser roller problems.

I use a hot air desoldering station and IR thermometer instead of an oven. Same problem with all HP products that use large size BGA chips.

When it paper jams (it will eventually), replace the pickup roller and seperation pad. Clean out the toner crud with a compressed air hose.

This is the main reason I like (some) HP printers. They *CAN* be repaired, and parts are commonly available:

--
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

I forgot the last video part 3:

--
Jeff Liebermann     jeffl@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558

Yes, I have a Brother inkjet for color and tabloid printing, but I am just about to give up on it. Everytime I go to use it, one or more of the ink cartridges have gummed up and wont' print. To keep it going, you almost have to run it daily, which is a real pain. It is parallel port only, and the only machine that I have that works with it takes almost 10 minutes to boot up. I don't have a half hour ever day just to baby sit a printer I only need every few months. I have finally just started to go to Staples or other supply store when I need color or tabloid prints...

My solution, as well.

Anyone tried the cheapy Brother color laser? ...Jim Thompson

--
| James E.Thompson, CTO                            |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
I love to cook with wine.     Sometimes I even put it in the food.

Good Lord! Don't you know ink jet printers have to be used at least weekly or the heads dry out? I've never had much luck getting working again after even a month or so. I've totally sworn off ink jets for that reason.

Jon

Yeah, this all was fought about 50 years ago when IBM (and maybe others) said if the US government used anything other than IBM-brand tapes on their computers the warranty would be voided. The government sued and won.

Now, the companies are making the printers so sensitive to cartridges and the cartridges so tricky about refilling that the printers no longer work. If you try to print a dense photographic image, the vacuum builds up in the cartridge until the ink stops flowing. So, to prevent refilling, even brand-new cartridges no longer work for their intended purpose!

Jon

I had a HP 960 Professional model, it could sit there for months and it would work when ever I needed it. It may on the first initial print of the first color used have a moment of no ink but I would just print out a simple quick test page to make sure it was clear.. I never had a dry out problem with that model.. Of course the refills were expensive as hell, which is why I didn't bother with it any more when it became obvious fewer places were stocking them.

Jamie