hp-info returns the following on my HP Color LaserJet 3600:

hp:/net/HP_Color_LaserJet_3600?ip=192.168.2.103

Device Parameters (dynamic data):
  Parameter                     Value(s)                                                  
  ----------------------------  ----------------------------------------------------------
  agent1-ack                    False                                                     
  agent1-desc                   Black toner cartridge                                     
  agent1-dvc                    0                                                         
  agent1-health                 0                                                         
  agent1-health-desc            Good/OK                                                   
  agent1-hp-ink                 False                                                     
  agent1-id                     0                                                         
  agent1-kind                   4                                                         
  agent1-known                  False                                                     
  agent1-level                  16                                                        
  agent1-level-trigger          0                                                         
  agent1-sku                    70 (Q2670A)                                               
  agent1-type                   1                                                         
  agent1-virgin                 False                                                     
  agent2-ack                    False                                                     
  agent2-desc                   Cyan toner cartridge                                      
  agent2-dvc                    0                                                         
  agent2-health                 0                                                         
  agent2-health-desc            Good/OK                                                   
  agent2-hp-ink                 False                                                     
  agent2-id                     0                                                         
  agent2-kind                   4                                                         
  agent2-known                  False                                                     
  agent2-level                  51                                                        
  agent2-level-trigger          0                                                         
  agent2-sku                    71 (Q2671A)                                               
  agent2-type                   4                                                         
  agent2-virgin                 False                                                     
  agent3-ack                    False                                                     
  agent3-desc                   Magenta toner cartridge                                   
  agent3-dvc                    0                                                         
  agent3-health                 0                                                         
  agent3-health-desc            Good/OK                                                   
  agent3-hp-ink                 False                                                     
  agent3-id                     0                                                         
  agent3-kind                   4                                                         
  agent3-known                  False                                                     
  agent3-level                  51                                                        
  agent3-level-trigger          0                                                         
  agent3-sku                    73 (Q2673A)                                               
  agent3-type                   5                                                         
  agent3-virgin                 False                                                     
  agent4-ack                    False                                                     
  agent4-desc                   Yellow toner cartridge                                    
  agent4-dvc                    0                                                         
  agent4-health                 0                                                         
  agent4-health-desc            Good/OK                                                   
  agent4-hp-ink                 False                                                     
  agent4-id                     0                                                         
  agent4-kind                   4                                                         
  agent4-known                  False                                                     
  agent4-level                  53                                                        
  agent4-level-trigger          0                                                         
  agent4-sku                    72 (Q2672A)                                               
  agent4-type                   6                                                         
  agent4-virgin                 False                                                     
  back-end                      hp                                                        
  cups-printer                  HP_Color_LaserJet_3600                                    
  cups-uri                      hp:/net/HP_Color_LaserJet_3600?ip=192.168.2.103           
  dev-file                                                                                
  device-state                  1                                                         
  device-uri                    hp:/net/HP_Color_LaserJet_3600?ip=192.168.2.103           
  deviceid                      MFG:Hewlett-Packard;CMD:PJL,PML,DW-PCL,JR4.2;1284.4DL:4d,4
                                e,1;MDL:HP Color LaserJet 3600;CLS:PRINTER;DES:HP Color   
                                LaserJet 3600;                                            
  duplexer                      1                                                         
  error-state                   0                                                         
  host                          192.168.2.103                                             
  in-tray1                      1                                                         
  in-tray2                      1                                                         
  is-hp                         True                                                      
  media-path                    1                                                         
  panel                         1                                                         
  panel-line1                   Sleep mode on                                             
  panel-line2                                                                             
  photo-tray                    0                                                         
  port                          1                                                         
  r                             0                                                         
  revision                      254                                                       
  rg                            000                                                       
  rr                            000000                                                    
  rs                            000000000                                                 
  serial                        CNXMH45118                                                
  status-code                   1000                                                      
  status-desc                   Idle.                                                     
  supply-door                   1                                                         
  top-door                      4                                                         

Model Parameters (static data):
  Parameter                     Value(s)                                                  
  ----------------------------  ----------------------------------------------------------
  align-type                    0                                                         
  clean-type                    0                                                         
  color-cal-type                0                                                         
  copy-type                     0                                                         
  embedded-server-type          1                                                         
  fax-type                      0                                                         
  fw-download                   0                                                         
  icon                          hp_color_LaserJet_3700.png                                
  io-mfp-mode                   6                                                         
  io-mode                       1                                                         
  io-support                    6                                                         
  job-storage                   0                                                         
  linefeed-cal-type             0                                                         
  model                         HP_Color_LaserJet_3600                                    
  model-ui                      HP Color LaserJet 3600                                    
  model1                        Color Laserjet 3600                                       
  model2                        Color Laserjet 3600dn                                     
  model3                        Color Laserjet 3600n                                      
  panel-check-type              1                                                         
  pcard-type                    0                                                         
  plugin                        2                                                         
  power-settings                0                                                         
  pq-diag-type                  0                                                         
  r-type                        0                                                         
  r0-agent1-kind                4                                                         
  r0-agent1-sku                 70 (Q2670A)                                               
  r0-agent1-type                1                                                         
  r0-agent2-kind                4                                                         
  r0-agent2-sku                 71 (Q2671A)                                               
  r0-agent2-type                4                                                         
  r0-agent3-kind                4                                                         
  r0-agent3-sku                 73 (Q2673A)                                               
  r0-agent3-type                5                                                         
  r0-agent4-kind                4                                                         
  r0-agent4-sku                 72 (Q2672A)                                               
  r0-agent4-type                6                                                         
  r0-agent5-kind                5                                                         
  r0-agent5-sku                 55 (Q3655A)                                               
  r0-agent5-type                62                                                        
  scan-style                    0                                                         
  scan-type                     0                                                         
  status-battery-check          0                                                         
  status-dynamic-counters       0                                                         
  status-type                   3                                                         
  support-released              1                                                         
  support-type                  2                                                         
  support-ver                   0.9.5                                                     
  tech-class                    ['LJJetReady']                                            
  tech-subclass                 ['Normal']                                                
  tech-type                     4                                                         
  usb-pid                       6917                                                      
  usb-vid                       03f0                                                      

Done.