General discussion

Locked

AB Switch

By wsampson ·
I have two printers attached to my PC one is a HP 4plus and the other HP officejet 700 series.

When I send a job to one printer after it is complete I send a job to the other printer and switching the switch to the other position I get the message that LPT1 is being used. But the other print job is completed.

Help Help

Thanks

Woody

This conversation is currently closed to new comments.

19 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

AB Switch

by johnm In reply to AB Switch

Is your A-B switch "bitronic" (supports two-way communication with the printers)? If your cables are, but the switch doesn't pass the returned job complete info from the printer you will get a similar message. Is the switch electronic or mechanical? I seem to remember that the LJ4 specifically doesn't work properly with mechanical switches. Check CMOS and see if bidirectional printing is enabled. If so, turn it off and see if the error message goes away. If it does, the switch/cabling is not delivering the release signal back to the computer.

Collapse -

AB Switch

by wsampson In reply to AB Switch

The question was auto-closed by TechRepublic

Collapse -

AB Switch

by jlessick In reply to AB Switch

How about adding another LPT port? They are available PCI or ISA for about the price of an AB switch and cable. The advantage is anyone could print to either printer just by choosing the driver for the printer they wanted to print to. No waiting, noworring about jobs finishing before flipping the switch, no more jobs sent to the wrong printer.

Collapse -

AB Switch

by wsampson In reply to AB Switch

The question was auto-closed by TechRepublic

Collapse -

AB Switch

by allan In reply to AB Switch

This is a problem with two way communication to the printer. Check that your Parallel cables are fully populated - all pins at the 25 way D end are connected. If you have 25 to 25 cables to the switch use a simple cable test to check straight through connection. If that's all OK then the switch box is the issue.
I'd support the answer above to buy a second LPT port - they are cheaper and easier to manage.

Collapse -

AB Switch

by wsampson In reply to AB Switch

The question was auto-closed by TechRepublic

Collapse -

AB Switch

by PaulP In reply to AB Switch

When I used to be responsible for HP series 3 & 4 laser printers, the users manual always warned against using mechanical AB switches, though they never mentioned why.

Collapse -

AB Switch

by wsampson In reply to AB Switch

The question was auto-closed by TechRepublic

Collapse -

AB Switch

by sliberty In reply to AB Switch

HP has always frowned upon the use of mechanical switches with their laser printers (and some others) due to issues with incomplete grounding during the switching process. A better solution is to use an electronic switch like the Buffalo or a print server (which would require a LAN card and a hub).

Collapse -

AB Switch

by wsampson In reply to AB Switch

The question was auto-closed by TechRepublic

Back to Desktop Forum
19 total posts (Page 1 of 2)   01 | 02   Next

Related Discussions

Related Forums