HP 1100A - Manual (Page 15)

EN Printer components 15
Printer door
Open the printer door to access the toner cartridge, clear jams, and
clean the printer. The printer door is located on the front of the printer.
Open and close the printer door by firmly grasping the top left and
right sides of the printer door and pulling it towards you.
Note If the scanner is attached, it may be necessary to move the printer to
the edge of your workstation before opening the printer door in order
to get the full range of motion.