Kodak 800 SERIES service manual Compute Bound, Printer Hesitation Causes

NovaJet 800 Series Service Manual

worked environments)

-E-Connect is improperly configured for high data transfer rate; redundant protocols turned on (900 kbyte optimum data rate normally required)

-Network has high traffic (limit workstations on server)

-Computer parallel port mode not set to ECP with DMA (for non-net- worked printing). For NT systems suggest using a unique PCI card to ensure a 1 MB per second data transfer rate.

Figure 4-108. Printer Hesitation Causes.

Compute Bound

When the printer becomes ‘compute bound’, the print head will hesitate between print passes. This occurs when the printers processor cannot keep up with the print swath requirement; could occur normally in the one or two pass print modes. In the one or two pass print modes all the ink is fired in one pass or two passes to complete a print swath. Since a large amount of data has to be computed to complete that swath, the print head may have to wait between swaths and depending on the amount of memory in the printer (i.e. for a plot file stored in memory) the printer may have to wait for all instructions to be processed before printing each pass.

Troubleshooting 4-97