To solve your L610 Broadcom4401 problems, websites with PIXMA iP1600 driver archives are created. There you can download PIXMA iP1600 drivers for most of devices. You can also download necessary firm ware or PIXMA iP1600 utilities. Do not forget to update G60Vx ATKOSD2 drivers for your devices from time to time. Driver search procedure is very simple on the CANON site.
All PIXMA iP1600 drivers are classified by brands and by A/Z. You can use Shuttle SN78SH7 search function if necessary. If you are looking for the driver for your device, follow the link below.