Laser Printer "repaired" for 2p

Jules · 4th November 2013, 22:52

Today I nearly scrapped my 18 month old Colour laser printer Samsung CLP 325
The page count had reached 24,008 copies and the smart panel said replace imaging unit R407.

This is more than half the cost of a new printer so I decided to investigate a "frig" repair......not a bodge as i don't believe in those !

Looking on the bay of flees you can buy a "reset chip" for approx £18
I decided to inspect the little plugin module on the RHS of the imaging unit which deliberately fuses after a certain count.
Shame on you Samsung and other manufacturers

There's 100k resistor strapped across a 0.47 ohm fusible resistor which in turn is connected in series with a tiny green fuse 1/16 amp.
Fuse had blown so I got my old TV repair spares box out and had a PCB fuse very close to that value .
Soldered in a hey presto.

The 100k resistor is there to discharge the high voltage they use to deliberately blow your fuse.
It also probably tells the printer CPU that the fuse has blown and the duff module is still installed.

Page count now reset to 24,000 pages
So a poke for Samsung
Cost me 2p to repair and didn't even need the Fleebay so called reset chip !!

I wonder how many millions of printers are thrown into landfill because of this dishonesty by corporate companies.

Needless to say I'll be going on holiday with the £250 we just saved

Dragrad · 4th November 2013, 23:18

Nice one Jules

chipsceola · 5th November 2013, 15:42

Some inkjets 'fail' in a similar manner, in many cases all that's required is a Free download from internet to reset it all, and presto all back to normal. Others can also fail due to use of non OEM cartridges over a period of time or number of changes, and once more a little investigation will give you a free fix.

Jules · 5th November 2013, 17:20

Agreed but I think this sort of "engineering practice" should be outlawed in order to save vital world resources.

It's ludicrous when you think about it

Probably 90% of printer owners can't be bothered and just go out and buy a new one.
The reason they are so cheap is because the makers subsidise the hardware price so they can rip you all off for the ink etc

KWIL · 5th November 2013, 17:44

My Canon inkjet said the surplus ink reservoir was filling, ignored and then it finally locked out. Opened it and cleaned out the tank where all the surplus ink from head cleaning goes. All the net info fails to work regarding a "reset". So??

DMGRS · 6th November 2013, 23:15

Good man!

I had similar with an old HP inkjet and the print head - timer set to countdown from new. When it told me to change them, I took them off and gave them a good clean (looked fine anyway) and found a procedure for resetting.

Scamming boogers the lot of 'em.

4th November 2013, 22:52	#1
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Laser Printer "repaired" for 2p Today I nearly scrapped my 18 month old Colour laser printer Samsung CLP 325 The page count had reached 24,008 copies and the smart panel said replace imaging unit R407. This is more than half the cost of a new printer so I decided to investigate a "frig" repair......not a bodge as i don't believe in those ! Looking on the bay of flees you can buy a "reset chip" for approx £18 I decided to inspect the little plugin module on the RHS of the imaging unit which deliberately fuses after a certain count. Shame on you Samsung and other manufacturers There's 100k resistor strapped across a 0.47 ohm fusible resistor which in turn is connected in series with a tiny green fuse 1/16 amp. Fuse had blown so I got my old TV repair spares box out and had a PCB fuse very close to that value . Soldered in a hey presto. The 100k resistor is there to discharge the high voltage they use to deliberately blow your fuse. It also probably tells the printer CPU that the fuse has blown and the duff module is still installed. Page count now reset to 24,000 pages So a poke for Samsung Cost me 2p to repair and didn't even need the Fleebay so called reset chip !! I wonder how many millions of printers are thrown into landfill because of this dishonesty by corporate companies. Needless to say I'll be going on holiday with the £250 we just saved __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

4th November 2013, 23:18	#2
Dragrad This is my second home *None DROWNED** Join Date: Aug 2007 Location: Cardigan Posts: 33,339 Thanks: 1,257 Thanked 1,664 Times in 1,081 Posts	Nice one Jules __________________ Andrew Ich Dien Problem solving is... lateral thinking SEARCH FIRST ...ASK LATER...

5th November 2013, 15:42	#3
chipsceola This is my second home Jaguar XF 3.0D Join Date: Nov 2010 Location: Southampton Posts: 4,364 Thanks: 119 Thanked 509 Times in 426 Posts	Some inkjets 'fail' in a similar manner, in many cases all that's required is a Free download from internet to reset it all, and presto all back to normal. Others can also fail due to use of non OEM cartridges over a period of time or number of changes, and once more a little investigation will give you a free fix. __________________ Chips

5th November 2013, 17:20	#4
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Agreed but I think this sort of "engineering practice" should be outlawed in order to save vital world resources. It's ludicrous when you think about it Probably 90% of printer owners can't be bothered and just go out and buy a new one. The reason they are so cheap is because the makers subsidise the hardware price so they can rip you all off for the ink etc __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

6th November 2013, 23:15	#6
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,321 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	Good man! I had similar with an old HP inkjet and the print head - timer set to countdown from new. When it told me to change them, I took them off and gave them a good clean (looked fine anyway) and found a procedure for resetting. Scamming boogers the lot of 'em. __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

5th November 2013, 17:44	#5
KWIL Precise Rover 75 Tourer 2.5KV6 Connoisseur SE Join Date: Mar 2013 Location: Fleet Posts: 2,957 Thanks: 630 Thanked 617 Times in 480 Posts	My Canon inkjet said the surplus ink reservoir was filling, ignored and then it finally locked out. Opened it and cleaned out the tank where all the surplus ink from head cleaning goes. All the net info fails to work regarding a "reset". So??