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S. C. Smith (UK)
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Debug It!: Find, Repair, and Prevent Bugs in Your Code (Pragmatic Programmers)
Debug It!: Find, Repair, and Prevent Bugs in Your Code (Pragmatic Programmers)
by Paul Butcher
Edition: Paperback
Price: 22.50

1 of 1 people found the following review helpful
5.0 out of 5 stars Excellent book - recommended reading for all software engineers, 1 April 2011
I'm very pleased to have bought "Debug It!". It sums up some of the techniques I've learnt the hard way over the last 12 years as a software engineer finding elusive bugs (mainly C and C++). Full of practical suggestions, not just in improving the process of diagnosing and fixing bugs, but also covering lessons learnt and the human elements of working in a team. With just a handful of Java examples, it is well written with just the right level of detail, mixed with appropriate case stories and useful lists of tools and websites in the appendix.


HP ScanJet 5590 Digital Flatbed Scanner - Flatbed scanner - Letter - 2400 dpi x 2400 dpi - ADF ( 50 sheets ) - Hi-Speed USB
HP ScanJet 5590 Digital Flatbed Scanner - Flatbed scanner - Letter - 2400 dpi x 2400 dpi - ADF ( 50 sheets ) - Hi-Speed USB
Offered by gadget-south-side
Price: 340.00

2 of 2 people found the following review helpful
2.0 out of 5 stars Poor quality but useable, 5 Dec 2010
I'd agree with the original reviewer that the ADF mechanism jams very easily if foreign objects are ingested, e.g. staples. It is fairly easy to fix once this has happened:-

Lift the roller arm up, unhook the spring and remove the roller assembly. Using only a Torx T10 screwdriver, unscrew the centre black screw holding down the green retaining clip, 2x black screws at both ends of the top cover hinge and 2x silver screws holding down the metal cover to the electronics. The roller mechanism is now free from the plastic. At the end with the metal springs, unscrew 2x silver screws to unclip the two curved plastic sections of the paper path. Clean all rollers and ensure there are no foreign objects. Refit in reverse order, avoiding trapping internal wires and losing the roller arm spring etc.

The clear plastic cover on the underside of the ADF should be refitted correctly if removed for cleaning. It should guide the paper around the roller assembly and to the out tray. Details for this are on the HP website.

After fixing the cause of the jam, the scanner subsequently worked just fine again for me. This has only jammed once for me in this manner, mostly it's just a case of pulling the jammed sheet out of the ADF. I'm still not convinced by the reliability of the HP Director software driver supplied on CD, nor the downloaded drivers.

The scanner is guaranteed to jam if operated in full duplex mode. I highly recommend scanning documents single-sided, turning over and scanning again with the ADF. I then use a cheap PDF software tool called "A PDF Image" to reorder the pages automatically (reorder mode 5).

Conclusion: This is a very poor quality product from HP. But with a little patience it is a useful scanner.
Comment Comments (2) | Permalink | Most recent comment: Feb 26, 2012 8:30 PM GMT


Safer C: Developing Software for High-Integrity and Safety-Critical Systems (McGraw-Hill International Series in Software Engineering)
Safer C: Developing Software for High-Integrity and Safety-Critical Systems (McGraw-Hill International Series in Software Engineering)
by Les Hatton
Edition: Paperback
Price: 24.99

2 of 2 people found the following review helpful
3.0 out of 5 stars Good book but slightly dated, 17 Jan 2009
Well detailed book which provides food for thought. It could benefit with being updated, as this edition was published in 1995. This applies most to the comparison of C with C++ and Ada 95, which were not standardised then. I would also like to see discussion of common safe subsets, such as MISRA C and SPARK Ada (See the author's own website).


Sony RDR-HXD870 - DVD Recorder With 160GB Hard Drive - With Freeview - Black
Sony RDR-HXD870 - DVD Recorder With 160GB Hard Drive - With Freeview - Black

52 of 52 people found the following review helpful
5.0 out of 5 stars Sony RDR-HXD870 = Very capable machine, 6 May 2008
Hard disk recorder with upscaling DVD recorder at a reasonable price. Best features for me are series record and 1080p HDMI output (DVDs look great even with a cheap HDMI cable). Most of the complaints I've read on Amazon seem to fit into 4 main categories:-

1. An expectation that it is a PVR. It does not claim to have twin digital tuners. Most modern TVs usually have an internal Freeview receiver, which is fine if simultaneous recording isn't required.

2. Trouble reading the manual. It's true the manual tends to go into unnecessary detail about advanced settings and modes. I rarely have any need for the manual because I find the recorder and the remote control intuitive. I recommend just playing around with it for 20 mins. It's easy enough to setup (suggest using a SCART cable initially and then migrating to HDMI), it scans all the digital channels automatically. The only option I had to set was the choice of EPG.

3. Weak reception. I don't have any specific problem so cannot comment. It performs just like any other Freeview receiver I've had.

4. Missed timer recordings. I recommend checking the firmware is at least version v1.65. Easy to do - full details are on Sony's website.

My only gripes are minor:- I'd love to move HDD recordings into folders and the EPG just looks a bit dated compared with the one on my Sony TV.

An undocumented feature is that it is also capable of reading DVD-RAM disks, so I was able to dub recordings made on my old Panasonic machine with no trouble.


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