Operating a microfilm device

If you have two microfilm devices, one with 240-pel resolution and one with 300-pel resolution, you can assign a different destination or class to each of them. You must tell the PSF users what DEST statements to use to direct their output to the destination with the desired resolution.

To switch from one startup procedure (or PRINTDEV) to the other, use this procedure:

• Drain the active PRINTDEV by using a normal printer stop command—$P PRTxxx in JES2, or *V,PRTxxx,OFFLINE in JES3.
• Start the other PRINTDEV by using a normal printer start command—$S PRTyyy in JES2, or *V,PRTyyy,ONLINE in JES3.

Some operator commands are not supported for correct operation with microfilm. Tell the operator not to use the following:

• JES $I (Interrupt) command
• JES $F (Space Forward) command
• JES $B (Space Backward) command (unless instructed to do so by the microfilm device)

At some point, the microfilm device instructs you to perform operator actions; correct operation is dependent upon your doing so.