HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 230

Printer Custom Paper Tray Specifications HCO Environmental Specifications Table C-13 lists the HCO environmental specifications. Table C-13 HCO environmental specifications Ambient Condition Temperature Humidity Temperature and humidity gradients Operating Non-operating 15 to 35 °C 0 to 35 °C 20 to 80% RH (no condensation) 40 to 60% RH optimal 20 to 80% RH (no condensation) 40 to 60% RH optimal 15 °C per hour or less and 30% RH per day or less (no condensation) Printer Custom Paper Tray Specifications The C5634A custom paper tray is a user-installable, optional paper tray compatible and switchable with any of the standard printer paper trays. The custom paper tray can hold up to 500 sheets of paper, as listed in the Table C-14 specifications. Table C-14 Custom paper tray physical specifications Width Length Minimum 120 mm 182 mm Maximum 297mm 431.8 mm The paper guides in the custom paper tray are adjustable, and it also supports the following standard media sizes: Letter, Legal, Ledger, Executive, A3, A4, A5, B4 and B5. PostScript Upgrade The C5630A PostScript upgrade is a user-installable optional upgrade for PostScript Level 2 emulation. You can add PostScript to your D640 printer with the C5630A PostScript upgrade. If you add PostScript, you must also install another 16 MB of printer memory (included with the C5630A PostScript upgrade kit). C-12 Specifications and Regulatory Information