Anybody used EPSON M-42V Daisy wheel Printer

[sougata]

Hi,

I need to use a low cost mini printer mechanism in one of my project. My local market provided me an EPSON Model - 42V printer for about $15(INR Rs.650). It has got 3 daisy wheels for printer. One motor and an encoder strip to provide some positioning and timing signals. (I could figure out this much) Googling for it I did not find any datasheet or application notes. Seems a pretty obsolete one. Following is what I have with me:



1 - trigger magnet -
2 - trigger magnet +
3 - motor +
4 - motor -
5 - timing signal T ---
6 - reset signal R ---
7 - common for 5,6,8
8 - Timing sub signal t


Any help or suggestion ( for any other printer aswell ) on how to play with it would be of great help to me. The mentioned printer is widely used in Telephone Call Monitor devices in the local market. I really do not have the scope and time to reverse engineer.

[Jerson]

Looks like you got yourself a calculator printer. I have used this printer many moons ago and may still have some data. If you still cannot find anything, let me know, I will search if the data is still there.

Jerson

[sougata]

Hi,

Thanks for the reply jerson. Actually the cost was an important factor. And the Kolkata market is not so smart to provide alternatives. So I had to settle for this. So if you have the datasheet please upload.

[Jerson]

Hi Sougata

I have located the data sheet. Unfortunately, it is 25 pages. I will upload the images maybe tomorrow.

Jerson

[sougata]

Hi Everybody,

Jerson was kind enough scan the pages of the old datasheet and send it to me. I can the same should anybody else need it. It is around 4.2Mb and cannot be uploaded here. Thanks Jerson for sharing and thanks to the forum to make it actually happen.

[Josuetas]

I have that thing i couldnt make it work, could you send it to some mail? mine is josuetas in gmail tx.

[Roshan]

Hi All!

Will you pls. send me data sheet of epson 42v.

my mail id is removed


Regards

Roshan

[sougata]

Hi Roshan,

Sorry for the late reply. The scans from Jerson was from old paper. It proved very useful though and I thank Jerson once again for the help. I have cleaned them a little bit. But still they are of big size. I tried to convert it into pdf. But due to poor quality OCR did not work. I would try to FTP it but going through very tight schedule. The code is not complete too. When finished I would post it here. By the way the timing diagrams are not much readable. Send me a PM after 29th SEP with your postal address, I would try to courrier the Hard Copy.

[sougata]

Hi All,

I have uploaded the file in rapidshare.

Here is the link:

http://rapidshare.de/files/33884482/Epson_M42-V.pdf

Hope this helps

[harsharanjitsin]

[QUOTE=sougata;24056]Hi, I am also searching Epson Model 42v datasheet, finally you got it, please let me know from where I can get the datasheet of the same. You have written you will help anyone which is in need, so please tell me from where I can get the datasheet. please email me at removed.

I will be thankful to you.

from
Harsharanjit

[sougata]

Hi,

The previous upload has been deleted so here is the new link http://rapidshare.com/files/23526925/Epson_M42-V_.pdf . Please note that the size of the file is close to 8.6 MB and sending by email is not permitted on my account. It is a pdf with the scanned document Jerson. Don't forget to thank Jerson.

[priya]

could you please mail me the datasheet of m-42 printer, i am in need of it, its urgent please!!!mail it to removed





Hi Everybody,

Jerson was kind enough scan the pages of the old datasheet and send it to me. I can the same should anybody else need it. It is around 4.2Mb and cannot be uploaded here. Thanks Jerson for sharing and thanks to the forum to make it actually happen.

[Darrel Taylor]

sougata,

It looks like that site deletes the file after 90 days for the free accounts.

If you want, I can put in on my website, where it'll stay.
Seems more people may want it in the future.
<br>

[Jerson]

For the sakes of future requesters, I've posted the datasheet on my website on the downloads page.

Jerson

[sougata]

Dear Priya,

As I write these the datasheet is being mailed to you. (My broadband upload speed sucks!).

Darrel I think it is a good idea to have it on your website thus I am again uploading it to rapidshare and posting the link. http://rapidshare.com/files/76897214/Epson_M42-V.pdf
I lost the code (and a lot other) when my 250gb Seagate was fried. I keep backups but do not really have a good incremental backup tool, (no free backup tool that I could locate) so things are really messed up. All I can remember is that I did some filtering on the signals from printer using R-C network followed by a Schmitt trigger. Also I remember that sometimes the count was wrong so instead of printing too fast I was printing then grabbing pulses and printing again. For experimental purposes I used PWM channels for both the motor drive and the solenoid but did not actually use them. Driver used was a ULN2803 with outputs paralleled. (4 for the motor/ 4 for the solenoid)

[Jerson]

Sougata

You should look at abakt (http://www.xs4all.nl/~edienske/abakt/). I use this for my backups. Very nice tool. Can do incremental, differential, full backups and is *Free*

[sougata]

Hi Jerson,

I will surely try that. But sad to know that the developer has stopped working on the project.

[cryjack]

Hello everybody.

My name is Ricardo, I'm from germany and I've got a problem with purchasing the 42-V.
Has anyone of you an idea where to get it? I've searched everywhere but found nothing. Maybe anyone has left over one.

Thanks for your help.

regards,
Cryjack - Ricardo

[priya]

hello,
can u please provide me some information on "how to interface m42v printer with 8051"?

[skimask]

hello,
can u please provide me some information on "how to interface m42v printer with 8051"?

Now PBP compiles for the 8051? When did this happen?

[sougata]

Dear Priya,

I have no experirnce on the 8051. I think Jerson may have used it on 8051.


Wish All a very Happy 2008.

[priya]

hello sir,
can u please provide me some information regarding, "interfacing m42v printer with 8051"?
thank you

[Jerson]

Priya

Tell us what you have done till now to interface the printer. If you run into some trouble with what you have, you can get help. But, you need to have done at least some preliminary work.

Yes Sougata, I have interfaced this printer with 8051 :)

JF

[neox27]

hi. jerson sir,

i am rilesh , a student of B.E> Entc and i wanted to use epson 42
v printer for my project which is similar to something used for
ticketing purpose in bus transport. i want it 4 printing recepts.

i hav got the datasheet of it. thanks to u 4 that. i am using avr
microcontroller and want to interface the printer to it. i just want to
know how the character selection is done and the tips regarding its
programing with microcontroller. i hav got some idea regarding driving motor
and the magnet, but bit counfused regarding selection of charcters.
Some example of code would be a great help.

if u could send me some data regarding this then it would be a great
help! my email id is



thanks once again for datasheets. i could get that only because of
u.bye. hav a nice day!

[Jerson]

Hello Rilesh

We are here to help you. However, show us what you have done till now. I'm very sorry, I do not entertain requests for code. If you post what you have, someone here sure will guide you.

Jerson

[rilesh_2004]

hi jerson sir,
i hav got ur reply. thanks for showing the interest in helping me.

as i hav told u earlier i hav got the driver circuit that drives the motor and the permanent magnet. but i am not finding any data on the remaining signals like
1. T
2. rst
3 . common(c)
4. t

if u could send me some data regarding how this signals can be used it will be a great help.

mail me on my id:

[Jerson]

Rilesh

Again, if you have done some coding, show it. We can guide you.

As far as the signals you mentioned, RST tells you when the wheels are at 0 position. First character on the wheels. The T (timing) pulses tell you when the wheel has advanced 1 character. This is from memory, I have not consulted the datasheet.

We could discuss your problems here since a forum exists for everyone to benefit. Today, its you who have a problem. Tomorrow, someone else who has the same problem will find the solution right here; whereas with email, the same questions will repeat.

[rilesh_2004]

hello sir,

i want to know weather its possible to print the characters by using epson 42 v and abt driving it by using atmega32 microcontroller. i hav written the code using code vision . the code is as follows.

#include<mega32.h>
#include<delay.h>
// timing signal T on portD-0
//reset pulse on portD-1
//triger magnet driving pulse on portD-2
int i;
void timing(void);
void reset(void);
void magnet(void);
void main()
{
while(1)
{
for(i=0;i<8;i++)
{
timing();
}
reset();

magnet();
}
}
void timing(void)
{
DDRD=0xff;
PORTD=0x01;
delay_ms(1);
PORTD=0x00;;
delay_ms(1);

}
void reset(void)
{
DDRD=0xff;
PORTD=0x02;
delay_ms(1);
PORTD=0x00; // a single reset pulse on pin pd.1
delay_ms(1);
}
void magnet(void)
{
DDRD=0xff;
PORTD=0x05;
delay_ms(1);
PORTD=0x04; //timing pulse on pd.0 gets low after 1ms
delay_us(500); // magnet pulse gets low on pd.2 after 1.5 ms
PORTD=0x00;
delay_ms(1);
}

i want to know weather motor needs the pulses or a continuous 5v supply.

[skimask]

i want to know weather its possible to print the characters by using epson 42 v and abt driving it by using atmega32 microcontroller. i hav written the code using code vision . the code is as follows.
2 answers...

1- PicBasicPro (not C)
2- Microchip PICs (not ATMEGA32)

[rilesh_2004]

hello jerson sir,

i wnat some data regarding thetimings to run the printer. i am just being able to run motor and the magnetbut because of lack of timing the desired characters are not printed.

[rilesh_2004]

hello jerson sir,

i wnat some data regarding thetimings to run the printer. i am just being able to run motor and the magnetbut because of lack of timing the desired characters are not printed.

As u hav mentioned in one of the thread as "Looks like you got yourself a calculator printer. I have used this printer many moons ago and may still have some data. If you still cannot find anything, let me know, I will search if the data is still there." so if u hav some data plz find it for me and post it so everybody can use it.

U hav done the project so u would hav exact knowledge of the timings. so i sincerely request u to post some data or to mail me that on my Id

[Jerson]

Rilesh

I have already posted the datasheet for you and others. See this http://www.picbasic.co.uk/forum/showpost.php?p=47816&postcount=14

The datasheet is the complete document you would need to interface the mechanism.

Good luck

[rilesh_2004]

O.k sir i understand but if i get some more information regarding intefacing and hardware connections it will be great. SO plz if u could refer to ur old data and can postsomething it will be great. I hope u will do this for me!!! Bye. have a nice day

[mail567]

Hello everyone, can you pls mail me or send a download link to me for the datasheet of epson 42v printer? I downloaded the one from rapidshare, but it contains only the contents page. My mail-ID is [email protected] . I am in kolkata, so getting only printers Epson 42v, Epson 460A & Citizen DP555L.
Thanks in advance.

[veenapal]

Hello everyone, can you pls mail me or send a download link to me for the datasheet of epson 42v printer? My mail-ID is [] . I am in indore , so getting only printers Epson 42v, Epson 460A & Citizen DP555L.
Thanks in advance.