Remanufacturing the HP LaserJet P1505 Series Toner Cartridge CB436A
By Mike Josiah
In November 2007, Hewlett Packard released the LaserJet P1505 printer. The HP- P1505 series of laser printers are
based on a 17 ppm, true 600dpi Canon engine. These cartridges use a chip that controls the toner low functions. The
CB436A is rated for 2,000 pages. Physically, the cartridges look like a small 12A (1012) cartridge, but there are many
differences.
The printer itself has a very small foot print. It’s a nice small office/home machine. The first page out is stated to be
in under 8.5 seconds from a power save mode. The memory is fixed and not expandable at 8Mb. The recommended
monthly volume is from 250-1500 pages/month, but the maximum monthly duty cycle is 5,000 pages. Unlike many
small printers these machines have an input tray that can hold 150 pages. A nice touch!
The system that holds the two halves of the cartridge together is completely new. The good news here is that you don’t
have to cut holes in the cartridge to get access to the pins!
The toner inside is also new. HP is stating that the toner now has “spherically shaped particles”. We are currently
investigating if this means the toner is chemical or conventional toner that has been thermally rounded. My guess is
that it is thermally rounded toner, but until our investigations are finished, we won’t know for sure.
In addition to the new toner, the chips have also had “intelligence added” to help aid cartridge ordering when supplies
are low. Again, we are investigating the chips for these cartridges as I write this. I can say I have run the same car-
tridge now 5 times, and the chip has not shut the printer down. Just the toner low features are not working.
The printer when new comes with a starter cartridge that is rated for 700 pages at 5% coverage, so your customers
will be coming to you fairly quickly! The starter cartridges and replacement 35A (1500 page) cartridges are physical-
ly the same so you can make a “High Yield” cartridge from the starter (if you can call 1500 pages high yield).
So far there are four printers based on this engine: the P1000, P1006, P1007, and P1008. At the time of this writing,
only the P1006 has been released. The other models are referred to in the service manual.
Cartridge troubleshooting as well as running test pages, cleaning pages and some simple printer troubleshooting will
be covered at the end of this article.
UNINET IMAGING INC. • BROTHER 1240/1650 • ASSEMBLING THE TONER CARTRIDGEUNINET IMAGING INC. • BROTHER 1240/1650 • DISASSEMBLING THE TONER CARTRIDGE
UNINET IMAGING INC. • HP P1505 CARTRIDGE REMANUFACTURING INSTRUCTIONS
© 2008 UniNet Imaging Inc. All Trademark names are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
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