Canon CX Engine Technical Repair Note #1

[Moe]

"W. Curtiss Priest" <bms...@mit.edu> wrote in message
news:3CE415...@mit.edu...
> Uum. Somehow this posting disappeared, so I'm reinstating
> it.
>
> It applies, generally, to many kinds of cartridges.
>
> I've seen folk 'dis' the fact that I still run the original
> Apple Laserwriter. God Damn good printer. Still does 8 ppm!
> Almost no maintenance in 16 years. (Used to use AppleTalk/PC
> card until someone said I could reset the serial to 38.4K.)
>
> And, gets Postscript right (yeah, small virtual memory, don't try
> above Acrobat 3.x).
>
> As for the copiers. You can't touch the PC-25 for versatility
> and quality, except with the PC-10 where the optics are such
> that you can't distinguish a copy from the original :)
>
> W. Curtiss Priest, Director, CITS
> Center for Information, Technology & Society
> 466 Pleasant St., Melrose, MA 02176
> Voice: 781-662-4044 BMS...@MIT.EDU
> Fax: 781-662-6882 WWW: http://www.eff.org/pub/Groups/CITS
>
>
> Canon CX Engine Technical Repair Note #1
>
> (also applies to the Canon PC-2000 photocopiers)
> (see list of machines at end)
> July 24, 1999
>
>
> Laser/PC cartridges refilling
>
>
> Some scorn the "drill and fill" method of recharging laser/copier
> cartridges.
>
> And, there was some rumor that the SX engine that replaced the
> CX engine had more abrasive toner.
>
> However, I have recharged 30+ cartridges, almost all by not
> opening them.
>
> P.S. The original Apple LaserWriter (and LaserWriter Plus) used
> this engine. I could get at least five refills before I had
> to replace the wiper blade (see Chenesko Products instructions
> for opening the cartridge at http://www.chenesko.com)
> And, for a 1984 printer, this thing does 8 ppm (fast) and still
> handles most of the Postscript files I throw at it. (It is
> haveing trouble with densely packed .PDF pages -- but what do
> you expect with only 170K of virtual memory.)
>
> And one of the best enlarging/reducing copiers -- the PC-25
> uses a similar engine. These machines last forever.
> (see my technical note:
>
> Canon PC-25 Copier
> Common Faults and Repair
> )
>
> Toner sells for about $3.50 a refill. The replacement fuser
> "wand" wicks cost a few cents.
>
> Suppliers:
>
> There are many on the Internet.
>
> Two, in particular:
>
> Oasis -- 1-800-322-8992
> Chenesko -- 1-800-221-3516 ("wholesale only" -- need a company name)
>
> Both want $50 minimum order. I fill out an order by buying one
> spare drum along with toner, wicks, and wiper blades.
>
> For replacing the fuser roller see:
>
> Canon CX Engine Technical Note #4
> Replacing the Fuser Roller
>
> For trays that don't break off see:
>
> Technical Note #3
> REPAIRING THE PAPER TRAYS
>
> For fixing a broken corona wire see:
>
> Technical Note #2
> REPLACING THE CORONA WIRE
>
> **********
>
> Here are my hints in refilling either PC (A20) or CX (EP) cartridges:
>
> 1. Always use a small soldering iron to make openings
> (do not drill, as shavings will drop in)
>
> 2. Cut the two small openings to remove the "spent toner"
> in such a way you know 2" plastic tape will reseal to
> all surfaces. (These holes must run almost to the side
> and no more than about 1 inch in, or you hit an inner
> plastic wall towards the middle. They go on the narrow
> sloped area below the finned plastic area and above the
> rolling door to the drum. So they measure about 1/4 inch
> high and about 7/8 inch wide)
>
> 3. Trim excess plastic rim from each opening
>
> 4. Take 2 paper towels and tape them lengthwise above
> and below the holes, and then 2 more paper towels on
> each side (on the outside of each hole). Now -- when
> you shake the spent toner out, it won't coat the outside
> of the cartridge!
>
> 5. STAND UP WIND (and outdoors)! Shake one end out, then shake the
> other end out. Do that twice until no more is liberally
> coming out. (Toner washes from hands with soap and water, easily)
>
> 6. Peel away the papertowel masking -- clean cartridge!
>
> 7. Wipe lip around holes and cut 2" tape about 1 1/2 inch long
> and tape so that you see sealing on all four sides of each
> hole, and the tape must not buldge or the door that opens
> to expose the drum will snag on it.
>
> 8. Of course, the 2-5th fills are easier, the holes are already cut.
>
> 9. Remove cardboard instructions from toner vessel and cut an
> oblong hole about 1 1/4 inch high, and about 2 inches wide.
> Put the hole at one end of the vessel, not in the middle.
> Again, with an exacto knife (and a papertowel in the hole to
> catch anything plastic) trim the lip away so tape will be smooth
> later.
> (I originally would cut a hole that matched the mouth of
> the toner bottle -- but that always made the hole come too
> close to the sides, and the tape wouldn't seal all 4 sides,
> and it would leak. There should always be about 1/4 inch of
> flat
> plastic around this hole.)
>
> 10. Remove cap from toner bottle, crush the end of the bottle
> and
> lip so that it is oblong to match the oblong hole in the
> cartridge. This is the real "trick" to avoid a funnel.
>
> 11. Poke the snout of the bottle into the cartridge, hold the
> cartridge so the fill hole is up and the other end is
> leaning down. Just shake everything. The toner falls into
> the vessel, and the shaking causes it to fall to the other
> end of the vessel, away from the hole. If you've been
> careful there isn't even a trace of toner on the surface.
>
> 12. Cut a 2 inch strip of 2" wide plastic tape and seal. Make
> sure
> you see all 4 edges go to black as the tape adheres.
> (don't use electrical tape and do this well because the
> next time you start shaking the cartridge to remove
> the spent toner, stuff will fly out of here if not well
> sealed.)
>
> 13. Remove old wick from toner wiper blade (the one on the
> fuser roller) with a flat bladed screwdriver. Take
> replacement wick, remove "sticky back tape" and press into
> holder, and reinsert into green fuser holder.
>
> Note: use PC toner for A20's and CX toner for the other. One is charged
> negatively and the other positively.
>
> That's it. Total time for a cartridge that needs cutting is less than
> 1/2 hour. For a cartridge with the holes, total time goes to 15
> minutes.
>
>
> *********************************************************************
>
> The CX engine is used in the following printers:
>
> (these printers use the 92285A (HP) cartridge, also sold as:
> Canon -- R340002
> Apple -- DIA-M0180
> )
>
> For these HP printers:
>
> Hewlett Packard 1686 TA
> Hewlett Packard 2686 Laserjet
> Hewlett Packard 2686 TA
> Hewlett Packard Laserjet
> Hewlett Packard Laserjet 500 Plus
> Hewlett Packard Laserjet Plus
>
> And these compatible printers:
>
> AB Dick 1P-0800
> AB Dick 2205
> Acom Computer L08219
> Acom Computer LX-831
> Acom Computer LX321
> Acom Computer LX528
> Advanced Tech INtL 0870
> Advanced Tech Intl. Laserprint 0800
> Advanced Vision Res. AVR-LPC3
> Aedex Corp Laserbar-508
> Allied Linotype Laser 8/4
> Ampak Bus Sys Laserpro
> Apple Laserwriter
> Apple Laserwriter Plus
> Atlantic Res. Tepest Laserwriter
> Autographix Corp
> Autologic APS-55/200
> BDS Comp. Corp. Laser 630/8
> BDS Comp. Corp. Laser 630/8E
> BDS Comp. Corp. Laser 630/8T
> Bedford Comp. Sys. QMS 800
> Berthold Laserprinter
> Blaser
> Blaser Blaserstar
> Blaser five
> Canon LBP-8 A1
> Canon LBP-8 A2
> Canon LBP-8 D A1
> Canon LBP-CX
> Compgraphic CG300-PS
> Compugraphic EP308
> Computer Language RES. Formwriter 2
> Computer Language Res. Formwriter 2X
> Concept Tech Conceptwriter
> Concept Tech Laser 8
> Cordat Inc LP-300X
> Cordata Inc Intellipress Printer
> Cordata Inc LP-300
> Corporate Data Science CDS 2300
> Corporate Data Science CDS 4300
> CPT LP-6
> CPT LP-8 GS
> CPT LP-8 S
> CPT LP-8 S
> CPT PS-8
> Data General 4557
> Data General 4558
> Data ND Laser North Atlantic
> Data Starbeam 7410
> Data Terminals DTC Laser
> Datapoint 7410
> Datapont Starbeam
> Derex Inc.
> Eastman Kodak 1308
> Eastman Kodak Keeps
> Electronic Forms Sts 2X
> Electronic Forms Sys 2
> GBT 6630 DW
> GBT 6630 KP
> GBT 6630 LS
> GBT 6633 XP
> GBT 6634 XP
> GBT 6635 LM
> GBT 6635 XP
> GBT 6636 PM
> GBT Laserstation
> Genesis Laserjet PTR
> Gestetner Corp
> GTC Tech Blaser
> GTC Tech Blaser Five
> GTC Tech Blaserstar
> HOB 8LP-8D A1
> Imagen 2308
> Imagen 3308
> Imagen 8/300
> Imagen Designer
> Imagen Executive
> Imagen Imagestation
> Imprint Tech Lightwriter
> Informer Comp Terminals 287-LP
> Intek Composition Sys Digitek LSR
> Intek Composition Sys PTW Laser PTR
> Interleaf LPI-308
> Interleaf LPR-308
> Interleaf OPS-2000
> Kidron Laser Octave
> Kodak Keeps
> Kowm
> Laser Barcode Syst Barcode
> Laserpro 820-C OCE 6010
> Lasersmith PS-300
> Lasersmith PS-415
> Lasersmith PS-415 GT
> Lasersmith PS-415 MAC
> Lasersmith PS-415 Plus
> Lasersmith PS-415 Plus 2
> Lasersmith PS-415 Plus 3
> Lasersmith PS-600 Plus
> Lasersmith PS-830 GT
> Lasersmith PS-830 MAC
> LAsersmith PS-830 Plus
> Lasersmith PS-830 Plus 2
> Lasersmith PS-830 Plus 3
> Legend Blazer
> Linotype Laser Printer 8/4
> lmageserver XP
> Management Graphics MGI Laserport
> Mentor Graphics
> Metaphor Comp Sys Laserport 5200
> Mitac LSD 820
> Mitek Systems Model 100T
> Mitek Systems Model 110T
> Mitek Systems Model 115T
> Mitek Systems Model 120T
> Mitek Systems Model 125T
> Mitek Systems Model 2125
> Moore Bus Forms Series 40-2
> Moore Bus Forms Series 40-2X
> NBI
> NBI LP908 NCR 6406 NCR 6416
> NEC BIT IV NEC BIT-IV S Norsk
> OCE 6015
> OCE 6015
> OCE 6017
> Oasys 805-C Laserpro
> Oasys 810-C
> Octave
> Octave Sys Laser Octave
> Olivetti PG101
> Packard Bell PB-8300
> Packard Bell PB-8300DP
> Packard Bell PB-8300PS
> Perq Systems PLP-CX
> Personal Comp Daisylaser 1000
> Philips Laserprint
> Prime Computer
> Printer Works Jetscript-CX
> QM Smartwriter
> QMS Big Kiss
> QMS Big Kiss II
> QMS Conceptwriter
> QMS Kiss
> QMS Lasergrafix 800
> QMS Lasergrafix 800 II
> QMS PS 800
> QMS PS 800 II
> QMS PS 800 Plus
> QMS Smart writer 8 0 Plus
> QMS Smart writer Plus
> QMS Smartscrip 800
> QMS Smartwriter 8/3X
> Qubix Corp A Laser PTR
> Rise Tech EPT- 1
> Summit Software Corp Laser Base
> Sun Microsystems Sun Laserwriter
> Syntrex Desktop Laser 2
> Tab Series 1000
> Talaris Systems T-610
> Talaris systems T-800
> Talaris Systems T-802
> Talaris Systems T-810
> Talaris Systems T-812
> Talaris Systems T-820 Plus
> Tempest Laser II North Atlantic
> Tempest Smartwiter Oasys Laserpro
> Texet 1P-300
> Unidot Sys Tems
> Varityper Signature
> View Tech Viewwriter 8
> Wang LPS-8
> Xyvision 6408
>
> Source: http://www.americal.com/92285a.html
> *******************************************************************
>
> The Canon copiers that used the same fuser roller are:
>
> PC-10
> PC-14
> PC-20
> PC-24
> PC-25
>
> --
>
>
> W. Curtiss Priest, Director, CITS
> Center for Information, Technology & Society
> 466 Pleasant St., Melrose, MA 02176
> Voice: 781-662-4044 BMS...@MIT.EDU
> Fax: 781-662-6882 WWW: http://Cybertrails.org