Hang detection when printing to HP 82240B

[ChrisB]

When I print from a program to the HP 82240B, the calculator hangs. After a reset (using the hole in the back) it shows me a "Hang detection. RESET in protected area." I have attached a screen shot. The error message is:

Reg Id d3770103, fw 3.3

After the first couple of resets, I have started from a "clean state" (memory lost), immediately entered the program, executed PRON, normal printing mode, executed the program a few times with different inputs. The program hangs while printing, normally not the first time I run it, but often the third or fourth time. When it hangs, the "printing" indictor and the "busy" indicator (black dot) in the display are on. It does not react to R/S nor any other key presses.

The printer has fresh batteries (Bat: 5), the self test executes okay.

The program:

00 { 81-Byte Prgm }
01▸LBL "VARISTO"
02 INPUT "I"
03 VIEW "I"
04 62.5
05 0.25
06 Y↑X
07 20
08 X<>Y
09 ÷
10 RCL "I"
11 0.25
12 Y↑X
13 ×
14 STO "U"
15 VIEW "U"
16 RCL÷ "I"
17 STO "R"
18 VIEW "R"
19 4
20 ÷
21 STO "DR"
22 VIEW "DR"
23 RCL "U"
24 RCL× "I"
25 STO "P"
26 VIEW "P"
27 END

Thank you for your support! - Chris

[grsbanks]

We're aware of this issue and there's a fix for it in the pipeline.

An update will be released shortly.

[ChrisB]

Excellent! I'm glad it's not some kind of "exotic" problem where you have to take everything apart before you can fix it.

Thanks - Chris