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1992-05-06
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HPMan V1.0: An HP Manipulator
A program to manipulate settings and fonts on HP LaserJet+ printers and
compatibles.
By Steve Robb
9 Epsom Ave
Auckland 3
New Zealand
Ph N.Z. (9)608-871
Description:
This program occupies approximately 33700 bytes on disk, and uses 36500
bytes of memory. It is intended occupy the title bar of the workbench.
It can be run from CLI or Workbench.
Background:
After more than a year of fiddling with basic programs and batch files
written with Scribble! and trying to remember the commands necessary
with JetSet, I was rather frustrated. I especially wanted a program that
looked like an Amiga program i.e. pull-down menus, requesters etc. I
haven't found any programs like that yet, hence this attempt.
It was my initial intention to write a program that would simply
download fonts. However, once that module was written, the basis of a
more generally useful program was there to be used with very little
extra memory overhead. A look through the PCLPak manual (that came
with a set of soft fonts) was some help. (If you wonder why the menus
are arranged the way they are, their basic organisation was derived from
this manual - one day I will tidy up the menus into a more orderly
arrangement - any ideas?)
Acknowledgements to:
Kevin Lee Claque, Randy Finch, Martin Hash for `FileRequest()'
I have modified the version (Aug 87) to remove the changes to
screen colours while the requester is displayed as this played
havoc with my eyes in interlace display.
Lattice for v4.0
Fred Fish for all the public domain stuff from which I learned `C'
WordPerfect - this file was created with the best wordprocessor so
far available for the Amiga, the source code was written with ProgramEdit
from WordPerfect.
Program Use:
I think the program is mostly self explanatory. But for those of you
who don't have the benefit of the reference manual that came with the
REAL LaserJet (as opposed to all the copies), some explanations are
included below. The program only uses the facilities available in the
LaserJet. It does save hopping up and down to press buttons on the
front of the printer, and it does save having to remember all the escape
sequences yourself.
PROJECT Menu:
About just in case someone removed the readme files
Save Settings - saves the current settings for later retrieval
Load Settings - loads and sets the last saved settings
FONTS Menu:
Download font - each font sent to the printer is given an ID
number. The ID number can be anything between 0 and 32767.
The LaserJet's limits are a maximum of 32 fonts resident in the
printer at one time, and (for the LaserJet+ at least), a
maximum of 10 fonts used per page. This program limits the
range of font ID's to between 1 and 20. The font ID # 0 is
reserved for macro's (see later).
Note that the font ID # is automatically incremented just
before the Download requester is displayed. All this means is
that if you want to overwrite a font, say font #6, then you
should set the font ID to #5 before calling the download
sequence. Simple eh!
Font ID - to select any number between 0 & 20. See note above.
Delete font - will delete the numbered font range 1-20.
Delete All fonts - will delete all the fonts, whether they be
temporary or permanent, as opposed to the Reset function
which will only delete temporary fonts
Select Font - a nearly useless function. However, the font you
select would become the font used by the PRT: device when
that is set for proportional mode. Note that this selection is
reset every time you call the Print Sample function below. If
there is enough demand, I will put in some code to preserve
the selected font ID.
Print Sample
Last font - prints a range of USASCII and extended ASCII
characters to show off the font you last downloaded OR the
font using the current ID (selected by Font ID above). You
must eject the page yourself for this - I opted this way
deliberately to allow a range of fonts on one page.
All fonts - prints a single line of characters for each font, just
so that you know what you have selected.
Make Permanent - will make the font with the current ID
permanent. Permanent fonts will survive resets (but not Delete
ALL Fonts or power-offs).
Font Report - this will make a written report the attributes of a
soft font. In particluar, the report will note the style (upright
vs italic), weight (bold vs normal), spacing (proportional vs
fixed), orientation (portrait vs landscape), point size, pitch,
typeface, and others. Note that values of these attributes are
derived from the font descriptor at the beginning of the font
file. Some fonts, notably JetSet fonts, do not completely
follow the standard font descriptor format and may cause
confusion.
FILE MANAGEMENT Menu:
Copy file - will copy a file to the current output device. Note that
this can cause problems in certain circumstances. If you have
selected the PRT: device as the current output device, copy
files containing HP specific escape sequences will just print
garbage. Escape sequences for the PRT: device will print
garbage if sent directly to the LaserJet via PAR: or SER:.
Know what you are sending!!
Destination - default is the PAR: device (my LaserJet+ is connected
to the parallel port - it is much faster than the serial port!!!).
If your printer is connected to the serial port then use this
menu to change it.
The PRT: device is for downloading simple ASCII code to the
printer, such as source code, ED files etc.
I will next be working on the code to allow the creation of
disk files. This would allow the creation of macro's, or groups
of fonts that can be downloaded all at once rather than having
to download each font individually. Currently, I have limited
use for this facility, so this has been a low priority.
PRINTER SETTINGS Menu: (These save having to reach over to the
printer to select functions)
Orientation - to select either portrait (default) [across the page] or
landscape [along the page] mode.
Paper Source - selects either the internal tray (default), manual
sheet feeder or envelope settings.
Lines per Page - printer defaults depend on paper tray fitted. 66
lines for an A4 page, 60 lines for letter size pages (foolscap -
who uses foolscap ?).
Lines Per Inch - actually the LaserJet is capable of a greater range
of line spacings than the limited ones shown, but this
arrangement gives the simplest execution or the user. If you
want to use other line spacings (0.5mm [1/48 inch] increments
are allowed) wait for the next version of this program.
Left Margin - default is 0, maximum is the current right margin
setting
Right Margin - default is right-most printable limit of page,
minimum value allowed is the current left margin setting.
Number of Copies - range 1 (default) to 99. The LaserJet is not
known for its speed at accepting graphics. But it can print at
8 pages per minute once the data is downloaded over. Note
that programs such as DeluxePaint and CityDesk send a reset
before printing. This prevents you from printing multiple
copies (shame, shame!!).
Auto Line Wrap - default is for this to be off. Beware, if this is
on, it can muck up your text displays.
Line Termination - sets the printers interpretation of <RETURN>,
<LINE FEED>, and <FORM FEED>.
Reset (Defaults) - resets all but the permanent fonts.
OTHER Menu:
Form Feed - ejects a page if there is any data on it.
Position Cursor - to position the `cursor' in units of:
a) centimetres (cm)
b) inches for those countries that don't like to keep up with
the times
c) dots - 300 per inch, 120 per cm
d) decipoints - 720 per inch, 288 per cm
e) row and column
Rules - will allow lines, grey scales etc to be printed. Wait for
next version.
Download overlays - any previously designed overlays can be copied and
activated. The overlay is cancelled by selecting the `CANCEL'
gadget of the requester.
Notes:
1.The menus FONTS, PRINTER SETTINGS, and OTHER will not allow
data to be sent to the PRT: device. This is to prevent HP specific
escape sequences from confusing the PRT: device. Data is
automatically rerouted through the PAR: device instead of PRT:.
Rerouting will not occur if the current output device is PAR:, SER:,
or a disk file.
2.The program cannot tell what you have selected for the various
settings previously, or what other programs have modified the
settings to. It presumes that it is the only one with control over
the printer settings.
3.BUGS are in there. The menu checkmarks are not
reset to the defaults on RESET. Currently the program doesn't
check to see that the printer is actually on line. If the program
appears to `hang', check the printer is turned on, and is on line.
Other bugs there may be, but I think the worst person to find bugs
is the person who wrote the code. I can't crash the program, and
apart from the problems mentioned above, I can't see any other
bugs. But if you do find some, PLEASE let me know.
4.All commands used by this program conform to HP's Printer
Command Language. So HPMan should also be able to control
compatible printers such as the HP DeskJet, Star LaserWriter etc.
However, as I only own an HP LaserJet+, I can make no guarantees
as to the performance of this program on anything other than a
LaserJet+.
5.This program is copyright to Steve Robb. Permission is given to
distribute the program freely by any means as long as the readme
files are also included, and as long as those who make use of the
program send $US10.00 to me at the above address, or their own
SHAREWARE software as a swap (especially if their shareware
relates to the LaserJet).
Steve Robb
13 July, 1988