In this The Creators Project documentary called "Meet Squarepusher", 1:09 into the video, a really old and abandoned Boss DR-55 can be spotted in Tom Jenkinson's house.

In the first paragraph, 13 lines down, on his official website, Robin Guthrie discusses his use of the Boss DR-55 drum machine.

is featured at 0:32 in the video

Visible in this photo of Stewart Copeland's "hotel rig" (or "suitcase studio") from around the Synchronicity tour, featured in the Police Vintage gallery section of his website.

From Down Beat magazine May 1984 issue:

On the road Copeland figures out his new charts on his "suitcase studio" - a Yamaha HandySound HS-5O1 polyphonic mini-synth, a Casio PT2O monophonic mini-synth (that also plays chords), a BOSS Dr Rhythm, the Scholz Rockman (for studio effects), a Fostex X-15 Multi-tracker cassette recorder, Sanyo C mini-monitor speakers, and Sony headphones, plus a Fender Stratocaster for that dose of heavy metal.

In this interview, Stephen is asked what his first drum machine was. "It was just after [recording Joy Division's album] Closer that I got the first affordable programmable drum machine, the Boss Dr. Rhythm DR-55 and that was on the early New Order stuff like 'Truth.' I think there's even a version of In A Lonely Place we did with the drum machine, it didn't work out too well."

“I like the Boss DR-55 for the sound; I can get good samples out of it".

Percussion/drum machines

Simmons SDS-V module + suitcase/seven pads; Boss DR-55 for "basic patterns".

"If we can remember rightly, it had only four sounds: kick, snare, rimshot and hi-hat. One mono output, of course. For programming, it had an eight-beat stave, and sequencing was performed by switching on the fly between the few patterns it would hold in RAM. The DR55 had no non-volatile memory or offload facility for storing these patterns when the power was off. Still, reprogramming it was quick enough, as it held so little. It certainly sounded primitive, the biggest problem being the inability to separately treat the sounds of kick and snare, which lacked any kind of attack... unless one turned the volume up to excruciating levels, which of course one did. It didn't sound bad, exactly, just ... primitive. "

The gear is... (Left side - top down): Boss PH-1 phaser pedal, Simmons ClapTrap, Roland SRE-555 Chorus Echo, Roland SH-7 Synth, Boss DR-55 Dr.Rhythm, Roland CSQ 100 sequencer, Roland CR-78 CompuRhythm.

"In this post on Twitter, Lol Tolhurst mentions that he played the keyboard for the first time on the track "One Hundred Years," and the Boss DR-55 was used for the drum part.

If you had to pick a favourite bit of gear from over the years, what would it be? "That would have to be the Roland DR-55 drum machine. It was the most quantum innovation that ever happened. If I had to pick one machine, that would be it. Being able to program a drum machine was a huge thing."

Per Fact Magazine, April, 2013:

‘Some Say’ now appears on Wilde Calm Records as a hand-stamped run of 500 vinyl copies, featuring a b-side rework by Pocketknife using the BOSS Dr. Rhythm DR-55 drum machine, a machine famously used by Russell.