bharat@hprnd.HP.COM (Bharat Singh) (07/11/89)
If your program wants an epson compatible printer, try configuring thinkjet in 'Alternate mode' (I Think its switch 5). Further, if in one of your programs, you get some graphics and then garbage, most probably your serial flow control is not right. There are two kinds of handshake - hardware and software (x-on/x-ff) handshake. Try putting the printer to use hardware handshake. Also you have to make sure that your printer cable is supporting all the handshake control lines such as RTS, CTS, DTR. To prove that handshake is a problem, try setting both computer and printer at 300 baud. Now you may be able to get more graphics printed and probably no garbage at all. Most of the applications have drivers for thinkjet either in HP mode or Alternate mode. Bharat
dlow@hpspcoi.HP.COM (Danny Low) (07/11/89)
>Something strange is going on here, and I'm baffled. I can do the >same things on a parallel ALPS or EPSON printer with no problems. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This may be the source of your problems. Unless the Thinkjet has an Epson emulation module, it is running in native mode and uses a different command language. For straight ASCII printouts the command language is not used but programs such as Sideways do use the command language. If your software thinks you have an Epson then they will use the wrong command sequences. Reconfigure your software to indicate you have an HP Thinkjet rather than an Epson and see what happens. Danny Low "Question Authority and the Authorities will question You" dlow@hpspcoi.hp.com ...!hpda!hpcuhc!hpspcoi!dlow
dclaar@hpcupt1.HP.COM (Doug Claar) (07/12/89)
You might already know about alternate mode. This is epson emulation mode. It is controlled by switch 5 (up=Alternate). To select the IBM character set, switches 6, 7, 8 should be up, up, down. There ARE differences. The thinkjet vertical resolution is 1/96; epson is 1/72. The aspect ratio in single density graphics is square on the thinkjet, but not on the epson. Horizontal dot density is also different. These details can be found in appendix A of the reference section of the thinkjet owner's manual, or at least the one I dug up (02225-90080). Whether or not these differences mess you up is application dependent. disclaimer: I don't work in the division responsible for the thinkjet, and I simply did a (hopefully) informed transcription of the thinkjet manual. HP is not responsible for what I've typed...But you knew that. Doug Claar HP Computer Systems Division UUCP: mcvax!decvax!hplabs!hpda!dclaar -or- ucbvax!hpda!dclaar ARPA: dclaar%hpda@hplabs.HP.COM
wek@point.UUCP (Bill Kuykendall) (07/14/89)
The Thinkjet has 2 graphics modes, one of which emulates an IBM printer. To use GRAPHICS.COM and print border characters, etc, you need to set the printer for this mode. It's been a long time, but I think switch #6 controls this. One caveat -- all of the Thinkjets I've seen were parallel interface models. Yours may have a second switch block that I don't know about.
raphael@hpcuhb.HP.COM (Bert Raphael) (07/14/89)
I think the previous HP responders have confused the Thinkjet with the Quietjet. I'm afraid the original Thinkjet only responds to the HP printer commands, and only prints the "Roman-8" character set. There are no dip switches on my Thinkjet (except for the HPIB address switches). Printer commands that work with Epson generally will NOT work with a Thinkjet. The Quietjet is a newer, somewhat more-expensive machine that uses the same ink cartridges as the Thinkjet, but has many improvements including "Alternate Mode" (Epson emulation) and character set choices, selectable by escape sequence or dip switches. [Usual disclaimer-- my part of HP USES printers, but doesn't make or sell them.]
boba@hpwarau.hp.com (Bob Alexander) (07/14/89)
>I think the previous HP responders have confused the Thinkjet >with the Quietjet. I'm afraid the original Thinkjet only responds >to the HP printer commands, and only prints the "Roman-8" character >set. There are no dip switches on my Thinkjet (except for the HPIB >address switches). Printer commands that work with Epson generally >will NOT work with a Thinkjet. No, they're not confused. The RS232 and Centronics versions of Thinkjet have "Alternate mode" (i.e. Epson emulation) that is enabled by putting switch 5 up. It also has the IBM character set that is enabled by putting switches 6 and 7 up and switch 8 down. I'm not surprised that your HP-IB Thinkjet doesn't have these features, since it was primarily intended to connect to instruments and perhaps HP 150s, not IBM compatibles. Bob Alexander | Get the Star Trek V Marshmallow Dispenser! The boba@hpwala.hp.com | official marshmallow dispenser of the USS Enterprise! -------------------+--------------------------------------------------- Organizations don't have opinions: individuals do. The opinions expressed above do not necessarily reflect those of the stockholders, employees, or directors of Hewlett-Packard.
tarvaine@tukki.jyu.fi (Tapani Tarvainen) (07/15/89)
In article <9440008@hpcuhb.HP.COM> raphael@hpcuhb.HP.COM (Bert Raphael) writes: >I think the previous HP responders have confused the Thinkjet >with the Quietjet. I'm afraid the original Thinkjet only responds >to the HP printer commands, and only prints the "Roman-8" character >set. There are no dip switches on my Thinkjet (except for the HPIB >address switches). Printer commands that work with Epson generally >will NOT work with a Thinkjet. The alternate control sequences (Epson-like) are activated differently in different ThinkJets, depending on the interface: * in the RS232 version it is a dip switch (number 5 to be exact - yes, I have the manual open in front of me); * the HP-IL version has no dips but the alternate mode can be selected with HP-IL commands (DDL 6, DATA 18); * the parallel (Centronics) version I think uses dips too, but I don't have the manual at hand; * the HP-IB version I've never used, but think it might use software commands like the HP-IL version (although it is possible it really doesn't have alternate mode). -- Tapani Tarvainen BitNet: tarvainen@finjyu Internet: tarvainen@jylk.jyu.fi -- OR -- tarvaine@tukki.jyu.fi
onymouse@netcom.UUCP (John DeBert) (07/17/89)
in article <1013@tukki.jyu.fi>, tarvaine@tukki.jyu.fi (Tapani Tarvainen) says: > > In article <9440008@hpcuhb.HP.COM> raphael@hpcuhb.HP.COM (Bert Raphael) writes: >>I think the previous HP responders have confused the Thinkjet >>with the Quietjet. I'm afraid the original Thinkjet only responds >>to the HP printer commands, and only prints the "Roman-8" character >>set... > > The alternate control sequences (Epson-like) are activated differently > in different ThinkJets, depending on the interface... > have alternate mode). > -- > Tapani Tarvainen BitNet: tarvainen@finjyu > Internet: tarvainen@jylk.jyu.fi -- OR -- tarvaine@tukki.jyu.fi I had forgotten that there are at least three different versions of the ThinkJet. I have the HPIB version, the 2225A, which does not have an alternate mode - or it may be merely undocumented. DIP switch 5 is used for address selection. I recall seeing that the 2225C, the serial version did in fact have some additional features, including a switvh for setting alternate mode. IF this is the one that the original poster was asking about, he should be able to get it to work by setting the switch appropriately. If it is the HPIB version, I'm afraid he's S.O.L. JJD onymouse@netcom.UUCP