HP ScanJet Adapter
@601F.ADF - HP SJ Plus
@621F.ADF - HPSJ IIc, IIp ROM addressing card (C1753)
@631F.ADF - HPSJ IIcx, 3p, 3c, 4c, 4p  I/O addressing card (C2503)
HPSJ IIp / IIc Scanners - Installing a ROM Card C1753 in Win95
HPSJ IIp scanner (PC / MCA) drivers and downloads

HP Scanner Interface Adapter (C1753) ADF 621F

A-E TI 013FF 
F TI 019FF 
1, 2 M5M5256BFP -12L 
3, 4 NS? M9018 1820-5002 
5-7 NS? M9018 1820-5241 

Blame Peter
   It's the old parallel adapter for the HP ScanJet Plus GS-scanner. You could use the card as additional parallel port - for a ZIP drive or external PP CD-ROM probably ... just in case you don't have the appropriate scanner. 

AdapterId 601F "HP Scanner Interface Adapter" 

FixedResources  int 7

I/O Port Location
   This adapter requires eight I/O ports.
    <"278-27FH (PARALLEL_3)" (io 278-27F), "268-26F"  (io 268-26F), "258-25F"  (io 258-25F), "248-24F"  (io 248-024F)

Memory Location
   16 Kbytes of memory space is required for the adapter ROM area.  
    <"Segment C400" (mem C400-C7FF)>, CC00 (CC00-CFFF), DC00 (DC00-DFFF), D800 (D800-DBFF), D400 (D400-D7FF), D000 (D000- D3FF), C000 (C000-C3FF), C800 (C800-CBFF)

HP ScanJet IIp Scanner (PC / MCA) 

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